WG-EMM-16

Soumis par:
Belinda Blackburn (Secrétariat de la CCAMLR)

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Résumé:

The authors present to the Working Group on Ecosystem Monitoring and Management (WG EMM) the scientific background and justification for the development of a marine protected area (MPA) in the Weddell Sea planning area. In accordance with the recommendations by WG-EMM-14 (SC-CAMLR-XXIII, Annex 6), this was done in three separate documents (Part A-C). WG-EMM-16/01 (Part A) sets out the general Read More
Soumis par:
Katharina Teschke

Approuvé par:
Thomas Brey (Allemagne)

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Résumé:

The authors present to the Working Group on Ecosystem Monitoring and Management (WG EMM) the scientific background and justification for the development of a marine protected area (MPA) in the Weddell Sea planning area. In accordance with the recommendations by WG-EMM-14 (SC-CAMLR-XXIII, Annex 6), this was done in three separate documents (Part A-C). WG-EMM-16/01 (Part A) sets out the general Read More
Soumis par:
Katharina Teschke

Approuvé par:
Thomas Brey (Allemagne)

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Résumé:

The authors present to the Working Group on Ecosystem Monitoring and Management (WG EMM) the scientific background and justification for the development of a marine protected area (MPA) in the Weddell Sea planning area. In accordance with the recommendations by WG-EMM-14 (SC-CAMLR-XXIII, Annex 6), this was done in three separate documents (Part A-C). WG-EMM-16/01 (Part A) sets out the general Read More
Soumis par:
Katharina Teschke

Approuvé par:
Thomas Brey (Allemagne)

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Résumé:

Antarctic krill (Euphausia superba) is an abundant fishery resource, the harvest levels of which are expected to increase. However, many of the length classes of krill can escape through commonly used commercial trawl mesh sizes. A vital component of the overall management of a fishery is to estimate the total fishing mortality and quantify the mortality rate of individuals that Read More
Soumis par:
Bjørn Krafft (Norvège)

Approuvé par:
Olav Rune Godø (Norvège)

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Résumé:

This paper evaluates present reporting procedures for the continuous fishing method and proposes a change in the CCAMLR requirements that produces more robust and correct catch statistics.

Soumis par:
Olav Rune Godø (Norvège)

Approuvé par:
Olav Rune Godø (Norvège)

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Résumé:

This paper evaluates present regulation of cabled net monitoring instrumentation and suggests an adjustment in the CCAMLR requirements that enable the industry and researches onboard the krill vessel to collect more and better monitoring and research data.

Soumis par:
Olav Rune Godø (Norvège)

Approuvé par:
Olav Rune Godø (Norvège)

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Résumé:

This update to the annual krill fishery report contains background of the fishery as an introduction to the report, an inventory of catch and SISO data up to June 2016, including incidental mortality of marine mammals and seabirds as well as the CCAMLR approach to management of the krill fishery. Monthly catch maps for the last complete fishing seasons (2015) and the current season up to Read More
Soumis par:
Lucy Robinson (Secrétariat de la CCAMLR)

Approuvé par:
Andrew Wright (Secrétariat de la CCAMLR)

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Résumé:

The CCAMLR Ecosystem Monitoring Program (CEMP) was established to detect changes in krill-based ecosystems to provide a basis for regulating harvesting of Antarctic living marine resources in accordance with the ‘ecosystem approach’.  This report:

1. summarises CEMP data submissions for the 2015/16 season,

2. presents a CEMP data inventory and metadata Read More
   Soumis par:
   Emily Grilly
   
   Approuvé par:
   Andrew Wright (Secrétariat de la CCAMLR)
   
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Résumé:

CEMP data from different sites in Area 48 were used to compare patterns of inter-annual variability as a function of the site location to examine the spatial scale over which CEMP data that have been collected at an individual site reflect changes in the marine ecosystem. Correlations between combined standardised indices (CSI) of summer CEMP parameters were generally positive and the patterns Read More
Soumis par:
Keith Reid

Approuvé par:
Andrew Wright (Secrétariat de la CCAMLR)

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Résumé:

Early analyses of CPUE in the krill fishery concluded that it was not a useful index of krill abundance. However, understanding the factors effecting the operation of the krill fishery and the extent to which these reflect changes in krill abundance are key elements of developing feedback management of the krill fishery. This analysis reviewed catch and effort data from the krill fishery for Read More
Soumis par:
Keith Reid

Approuvé par:
Andrew Wright (Secrétariat de la CCAMLR)

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Résumé:

The issue of observer coverage in krill fisheries has been the subject of extensive discussion at the Commission for a number of years, as the krill fishery is the only CCAMLR fishery that does not require 100% observer coverage. The Secretariat analysed the level of observer coverage for the past five years comparing the number of days of fishing conducted by vessels in the krill fleet, with Read More
Soumis par:
Keith Reid

Approuvé par:
Andrew Wright (Secrétariat de la CCAMLR)

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Résumé:

A proposal for a Joint SC-CAMLR and SC-IWC two-day Workshop to develop multi-species models of the Antarctic marine ecosystem was discussed at the SC-CAMLR 2014, and a steering group to progress a Joint IWC–CCAMLR Workshop was formed (SC-CAMLR 2014 Paragraph 10.25). The joint workshop was perceived as an opportunity to increase knowledge on specific species and their interactions in different Read More
Soumis par:
So Kawaguchi

Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)

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Résumé:

The RRS James Clark Ross carried out a benthic scientific research voyage around the South Orkney Plateau in February-March 2016. The Expedition, led by the British Antarctic Survey, was in collaboration with the Scientific Committee for Antarctic Research (SCAR) State of the Antarctic Ecosystem (AntEco) research programme, including scientists from 8 CCAMLR members. The main purpose of the Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

The marine ecosystem associated with the ocean shelves around South Georgia and the South Orkney Islands is highly productive, with a history of commercial exploitation. Many of the key oceanographic and ecological processes that determine the structure and functioning of this ecosystem operate over small scales of <10 km. Historically, these fine spatial scales have been poorly represented Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

In this paper we consider whether the CCAMLR fishing season for Antarctic krill should start at a time of year that is based upon ecological events, rather than upon a date that is convenient for management. We review data on the breeding phenology of predators, and use data from the CCAMLR Statistical Bulletin (Version 28) to explore whether there are times of year that would reduce the Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

We explore CCAMLR Catch and Effort data from the fishery for Antarctic krill for the period 1999/2000 to 2014/2015. We show that since 2013, both the number of hauls as well as the associated level of catch has increased in Subarea 48.1 during the penguin breeding season. We explore in detail, the fishing patterns in Subarea 48.1 during 2014/2015, showing that two areas of fishing aggregation Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

We review the state of ecological knowledge for Subarea 48.2 and suggest that the development of any new management approach based on ecological indicators is limited by the current level of relevant ecological information. We propose that there is therefore an urgent need to improve the ecological knowledge base, but identify that this will take time. We conclude that if the krill fishery in Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

This paper briefly describes the rationale and structure of the research cruise that formed a key component of the co-ordinated, multi-national South Orkney Ecosystems Studies focusing on the krill-based ecosystem in the main fishing area in Subarea 48 undertaken in the austral summer of 2015-16. The research cruise consisted of collection of at-sea data on the distribution, abundance and Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

• First attempt to systematically identify marine IBAs in the Antarctic

• Assessed all available penguin tracking data for Subarea 48.1 (Antarctic Peninsula, and South Shetland Islands) and Subarea 48.2 (South Orkney Islands)

• Developed new protocols for determining candidate IBAs based on penguin tracking data

• Identified 6 candidate Read More
  Soumis par:
  Chris Darby
  
  Approuvé par:
  Chris Darby
  
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Résumé:

This paper is a revised version of WG-EMM-15/28, which uses a question and answer format to explain the management of the Antarctic krill (Euphausia superba) fishery in the subareas 48.1 to 48.4, and current knowledge about the state of the regional krill stock. The revisions provide a new, precautionary assessment of exploitation rate in this fishery. The effective regional catch Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) is a regional programme of the Integrated Marine Biogeochemistry and Ecosystem Research (IMBER) Programme and is closely linked with Scientific Committee on Antarctic Research (SCAR). ICED is undertaking integrated circumpolar analyses to improve our understanding of change and the implications for Southern Ocean Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

Target identification remains a challenge for acoustic surveys of marine fauna. Antarctic krill, Euphausia superba, are typically identified through a combination of expert scrutiny of echograms and analysis of differences in mean volume backscattering strengths (S_V; dB re 1 m^-1) measured at two or more echosounder Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

This document is devoted to studying species composition, spatial and vertical distributions, size composition and abundance of morids in the CCAMLR and adjacent areas. The main goal is to conserve these fishes and prevent them from disturbance in the Antarctic waters. This will be done by detection of areas and depths of their aggregations, by reveal of presence/absence of spatial and Read More
Soumis par:
Andrey Petrov

Approuvé par:
Dmitry Kremenyuk (Fédération de Russie)

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Résumé:

Lipid metabolism and indices of oxidation processes obtained during examination of specimens of Antarctic toothfish Dissostichus mawsoni (Perciformes: Nototheniidae) caught in the Ross Sea are given. Blood plasma, tissues mesonephric kidney, liver and spleen were studied for the content of total lipids and lipid composition, products of lipid peroxidation and level of antioxidant Read More
Soumis par:
Andrey Petrov

Approuvé par:
Dmitry Kremenyuk (Fédération de Russie)

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Résumé:

This paper examines temporal changes in distribution and sighting density indices of krill-eater baleen whales in Subareas 48.1 and 48.2. This paper was prepared in response to a suggestion in EMM-15 that an analysis of historical cetacean surveys in IWC Area II could provide a context for at-sea observations of cetaceans. Sighting data examined in this study were obtained during a series of Read More
Soumis par:
Luis Alberto Pastene Perez (Japon)

Approuvé par:
Taro Ichii

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Résumé:

In 2015 the European Union proposed a draft Conservation Measure (CM) with the aim of promoting and facilitating scientific research in newly exposed marine areas following ice shelf retreat or collapse around the Antarctic Peninsula (CCAMLR-XXXIV/21). The proposed CM would establish Special Areas for Scientific Study in such areas, with a designated 10-year study period during which time Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

Increased awareness about the present status of marine systems, including those where fisheries target the prey of natural predators, has led to recommendations about how information on the status of marine predators might be used to inform ecosystem-based management approaches. In the Antarctic, sustained ecological research has generated long-term data on the performance of marine predators Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

The northern regions of the Scotia Sea demonstrate notable variability in environmental conditions, particularly in the location of the Polar Front. This has a strong influence on patterns of productivity and distribution of plankton, with implications to higher trophic levels, including harvested species. The long-term impact of environmental variability on plankton species composition and Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Soumis par:
Doro Forck (Secrétariat de la CCAMLR)

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Résumé:

To identify the important prey items for pre-recruit Antarctic toothfish in the SSRUs 58.4.1.C, 58.4.1.G, 58.4.1.E, and 58.4.2.E, their stable carbon and nitrogen isotope ratios were determined. Sampling efforts were made during a longline survey of pre-recruit toothfish from commercial fishing vessel. In the previous studies, similarities in total FA compositions and the FA profiles in muscle Read More
Soumis par:
Seok-Gwan Choi (Corée, Rép. de)

Approuvé par:
Seok-Gwan Choi (Corée, Rép. de)

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Résumé:

Dissostichus mawsoni, the Antarctic toothfish, is a local organism of the Southern Ocean. The fish is a member of the Notothenioidei, which lives in the sub-zero (-2 °C) continental shelf waters of Antarctica. The Antarctic toothfish are protected from freezing by the existence of antifreeze proteins in the tissue, which inhibit the ice making in the body fluids. In this project, we Read More
Soumis par:
Seok-Gwan Choi (Corée, Rép. de)

Approuvé par:
Seok-Gwan Choi (Corée, Rép. de)

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Résumé:

It is important to study its structure because plankton community changes by the environmental changes in the Antarctic Ocean ecosystem. We here applied the metabarcoding method to analyze the biodiversity of zooplankton in the Indian Ocean of Antarctica, Division 58.4.1 in 2014/15. Compared with the previous method, next generation sequencing (NGS) using Miseq platform produces the large Read More
Soumis par:
Seok-Gwan Choi (Corée, Rép. de)

Approuvé par:
Seok-Gwan Choi (Corée, Rép. de)

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Résumé:

Announcement and details of the Third International Symposium on Krill to be held at the  University of St Andrews, Scotland, between June 12 and 16, 2017.

Soumis par:
Keith Reid

Approuvé par:
Andrew Wright (Secrétariat de la CCAMLR)

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Résumé:

This study used a Marxan approach to identify important benthic areas within MPA Planning Domain 1 (Western Antarctic Peninsula and Southern Scotia Sea). The results do not constitute any proposal for candidate MPAs, however they may be useful in contributing additional information towards the Domain 1 MPA planning process. Several core areas important for benthic conservation are described Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

In April 2016 Southern Ocean Network of Acoustics (SONA) hosted a workshop of its partners and invited guests to discuss acoustic processing methods and future directions. Five agenda items were discussed: Acoustic data/data coverage and availability; Data processing techniques and comparison; Metrics of data quality and DOIs; Summary statistics and a way forward for regional comparison; and Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

We report on preliminary analyses to estimate macaroni penguin consumption of prey in Subarea 48.3 during the period when penguins are constrained by breeding. We show that the greatest levels of consumption occur during incubation and pre-moult, but that there are also evident increases towards the end of guard and the end of crèche. Our initial results indicate that levels of krill Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

Antarctic krill (Euphausia superba) are considered to be one of the key species in the Antarctic marine food web, being prey to a wide variety of dependent species as well as being commercially harvested. The commercial exploitation of krill is managed under the direction of CCAMLR (Commission for the Conservation of Antarctic Marine Living Resources), utilising results derived from Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

The authors considered the inter-annual variability of krill transport factors in the Scotia Sea analysing data from available meso-scale surveys covered the Scotia Sea. The subject of analysis were the geostrophic water masses circulation and krill transport factors, including variability of water masses  (kg / m³) and krill biomass (g / m3) transporting across the survey area Read More
Soumis par:
Svetlana Kasatkina (Fédération de Russie)

Approuvé par:
Dmitry Kremenyuk (Fédération de Russie)

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Résumé:

Analysis of spatial-temporal variability of the CPUE indices for the krill fishery in Area 48 (2006-2015) with using fishery index anomalies, method “Semaphore” and cluster analysis with option“Сoniss” was provided.   Results of this analysis detailed by Subarea 48.1, 48.2 and 48.3 and SSMUs and fishery techniques are considered.

Soumis par:
Svetlana Kasatkina (Fédération de Russie)

Approuvé par:
Dmitry Kremenyuk (Fédération de Russie)

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Résumé:

Analysis of the krill spatial distribution characteristics as the important factor for the krill fishery management in Area was performed by Sytov A. being   the CCAMLR Scholarship recipient (mentor Kasatkina S.). The data obtained  from the multiannual Russian observations in the Area 48, including acoustic surveys data, fishery statistics (haul by haul), the data obtained Read More
Soumis par:
Svetlana Kasatkina (Fédération de Russie)

Approuvé par:
Dmitry Kremenyuk (Fédération de Russie)

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Résumé:

Penguins, albatrosses, petrels, elephant seals and fur seals are marine top predators that have to come on land to reproduce. Therefore, they are the only marine top predators that can be studied from land base sites, making them the most accessible convenient models to study marine ecosystems. Indeed, seabirds and seals are considered as good indicators of changes in ecosystems at Read More
Soumis par:
Philippe Koubbi

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Résumé:

A workshop was held in Paris from June 6 to 9^th 2016. It was convened by Philippe Koubbi and Christophe Guinet. The main aim was to determine ecoregions in the Kerguelen oceanic zones to give orientations for extending the actual coastal natural reserve managed by the Terres Australes and Antarctiques Françaises. The workshop listed general conservation objectives to evaluate Read More
Soumis par:
Philippe Koubbi

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Philippe Koubbi

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Résumé:

The United Kingdom has contributed funding to the US-based non-governmental organisation Oceanites, to support its ongoing Antarctic Site Inventory project, which monitors penguin populations across the Antarctic Peninsula.  The Antarctic Site Inventory data, together with data from other sources, has been collated within Mapping Application for Penguin Populations and Projected Dynamics Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

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Résumé:

Here we compile eight vignettes that, together, provide the background data and information needed to support development of a feedback management strategy for the krill fishery in Subarea 48.1. In this compilation, we provide support for combining SSMUs into groups of SSMUS (gSSMUs) to form larger management units. We believe that identifying management areas that are larger than SSMUs within Read More
Soumis par:
George Watters

Approuvé par:
George Watters

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Résumé:

Here we compile four vignettes that, together, provide the basis for making downward adjustments to local catch limits for the krill fishery in Subarea 48.1.  We use the term local catch limit to refer to a catch limit that applies to a group of SSMUs (gSSMU), and the work presented here is based on the gSSMUs defined in another compilation of vignettes (AERD 2016a, pp. 3-13).  We Read More
Soumis par:
George Watters

Approuvé par:
George Watters

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Résumé:

Here we compile three vignettes that, together, provide the basis for making upward adjustments to local catch limits for the krill fishery in Subarea 48.1.  We use the term local catch limit to refer to a catch limit that applies to a group of SSMUs (gSSMU), and the work presented here is based on the gSSMUs defined in another compilation of vignettes (AERD 2016a, pp. 3-13).  We Read More
Soumis par:
George Watters

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George Watters

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Résumé:

We present a Stage-2 strategy for in-season feedback management (FBM) of the krill fishery in Subarea 48.1.  This strategy is a combination of two strategies that were separately proposed to the WG-EMM in 2015 and is based on a broad foundation of work undertaken to address a suite of action items specified by the WG-EMM.  A decision rule to adjust catches in groups of SSMUs (gSSMUs Read More
Soumis par:
George Watters

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George Watters

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Résumé:

At the close of the Commission for the Conservation of Antarctic Marine Living Resources meeting in 2015, New Zealand and the United States introduced a revision to the proposed Ross Sea Region Marine Protected Area (RSRMPA) that included the addition of a Krill Research Zone (KRZ). A central aim of the proposed KRZ is to enhance research opportunities within the RSRMPA. To provide a Read More
Soumis par:
George Watters

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George Watters

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We studied Ross Sea killer whales (RSKWs; Orcinus orca, Antarctic type C), a fish-eating ecotype, in McMurdo Sound, Antarctica, during 7 seasons, over a 14-year period from 2001/02 to 2014/15. Using photo-identification methods, we identified 352 individual RSKWs in the Sound and up to 175 there annually. Despite high turnover of different whales between years, we used a Bayesian mark Read More
Soumis par:
George Watters

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George Watters

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Résumé:

The analysis of euphausiid larvae collected during january 2011 in the Weddell Scotia Confluence region show a strong decrease in the abundance of Euphausia superba larvae and an increase in Thysanoessa macrura. Oceanographic conditions didn’t show any significant variations respect historical information. The analysis was conducted using cluster and correspondence Read More
Soumis par:
Emilce Florencia Rombolá

Approuvé par:
Enrique Marschoff (Argentina)

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Résumé:

Antarctic krill is a key species in the Southern Ocean food web and is also the target of the greatest fishery in Antarctic waters. Management of the fishery is based on a precautionary catch limit, representing 0.11 the allowable catch limit for CCAMLR Area 48, and further divided by subarea. Despite that the fishery is operating in the Antarctic Peninsula area since 1980s, the spatial and Read More
Soumis par:
Javier Arata

Approuvé par:
César Cárdenas

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Résumé:

Given their ecological and economic importance, understanding how climate change will affect krill resources and the marine ecosystem in Antarctic waters is critical. Previous research has demonstrated possible climate change impacts on krill habitat and growth. In this preliminary study, we assessed the potential consequences of these impacts for both the krill stock and its dependent Read More
Soumis par:
George Watters

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George Watters

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This report is a presentation of environmental information on the Crozet oceanic zone that was obtained during the CROMEBA project (CROzet Marine Ecosystem Based Management). This project aims to determine the prerequisites at the environmental or biodiversity levels to propose new conservation measures that would expand geographically in the EEZ the actual National Marine Nature Reserve. The Read More
Soumis par:
Philippe Koubbi

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Philippe Koubbi

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Résumé:

In the report we describe the season activity in the Ukrainian Vernadsky Antarctic Station area on installation CEMP cameras in penguin colonies as part of the CEMP project run by USA, Argentina, Poland and Ukraine 'Establishing a CEMP Camera Network in Subarea 48.1'. In season 2015/2016 we installed nine cameras at penguine colonies at Petermann, Yalour and Galindez Islands to monitor Read More
Soumis par:
Kostiantyn Demianenko

Approuvé par:
Kostiantyn Demianenko

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Résumé:

Taking into account the practice and current state of krill fishery in Area 48, Ukraine proposed to upgrade the Conservation Measure 51-07 in order to redistribute the trigger level of catch in 620 000 tonnes between Subareas in Area 48 in a new percentage limits. This revision includes additional precautional measures to avoid interceptance of krill fishery and preadors consumption needs Read More
Soumis par:
Kostiantyn Demianenko

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Kostiantyn Demianenko

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Résumé:

The solution of problems of conservation the Antarctic marina living resources and, at the same time, maintenance of their rational use, requires possession of up-to-date information that summarized availability of each harvested species of resources for human use. In connection with this it is proposed a specific indicator – "Availability Index (AI)", which accumulates the all existing Read More
Soumis par:
Kostiantyn Demianenko

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Kostiantyn Demianenko

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Résumé:

We provide a brief update on the progress of our project “Establishing a CEMP Camera Network in Subarea 48.1”. The project was initiated with support from the CEMP Fund in 2014/15. The project is now running, with 53 time-lapse cameras installed throughout Subarea 48.1. Installation of cameras was conducted mainly during the 2015/16 field season. However, early installation and/or inclusion of Read More
Soumis par:
Jefferson Hinke

Approuvé par:
George Watters

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Résumé:

The research was conducted during the summer season from 12.13.2011 to 02.09.2012 at the Ukrainian Antarctic station "Academik Vernadsky". The most numerous breeding colony of the Gentoo Penguin (Pygoscelis papua) is located on the Petermann Is. From December 2011 to February 2012 there were unfavorable ice conditions around the Argentine Islands. Pointed out the high mortality among Read More
Soumis par:
Leonid Pshenichnov

Approuvé par:
Kostiantyn Demianenko

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Résumé:

Antarctic Krill plays an important role in Antarctic ecosystems as the medium that connects phytoplankton to penguins, seals, and whales. It is also in the limelight as an important protein source for the future food resource. Since Krill is mainly schooled within 200m depth, mass catching is operated by Norway, Korea, and Japan, etc. Major fishing area is the surroundings of South Sheltland Read More
Soumis par:
Seok-Gwan Choi (Corée, Rép. de)

Approuvé par:
Seok-Gwan Choi (Corée, Rép. de)

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Résumé:

In this study, we calibrated a commercial echosounder (ES70) installed on a krill fishing vessel to use it in estimating biomass of Antarctic krill (Euphausia superba). The method of calibration was to analyze the difference between the bottom backscattering strength of the commercial echosounder (i.e. ES70) and the scientific echosounder (i.e. EK60) at some transects designated by Read More
Soumis par:
Seok-Gwan Choi (Corée, Rép. de)

Approuvé par:
Seok-Gwan Choi (Corée, Rép. de)

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Résumé:

Korea Polar Research Institute, with support of the Korean Ministry of Environment, has conducted an annual survey on the breeding biology of Chinstrap (Pygoscelis antarctica) and Gentoo penguins (Pygoscelis papua) as a part of a long-term ecological research at Narębski Point (Antarctic Specially Protected Area, No. 171), Barton Peninsula on King George Island. Since 2012/ Read More
Soumis par:
Seok-Gwan Choi (Corée, Rép. de)

Approuvé par:
Seok-Gwan Choi (Corée, Rép. de)

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Résumé:

Due to uncertainties in Antarctic krill stock, which do not allow scientists to develop comprehensive system of Feedback management of krill fishery and to provide work on forecast of the ecosystem changes, Ukraine proposes to change the Conservation Measure 51-06(2014) making the scientific observation system in the krill fishery mandatory.

Soumis par:
Kostiantyn Demianenko

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Kostiantyn Demianenko

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Résumé:

Changes in the Antarctic ecosystem have been triggered by anthropogenic and natural factors. This paper reviews the scientific information of whales that could be indicative of changes in the East Antarctica ecosystem in the context of two hypotheses, the ‘krill surplus’ hypothesis in the middle of the past century and the recovery of krill-eater large whales since the 1980’s. There was an Read More
Soumis par:
Luis Alberto Pastene Perez (Japon)

Approuvé par:
Taro Ichii

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Résumé:

We estimate the total abundance of Adélie penguins foraging in Divisions 58.4.1 and 58.4.2 and provide preliminary estimates of krill consumed by breeding Adélie penguins in these Divisions using a newly developed bio-energetics model.  Our estimate of ~6 million Adélie penguins substantially revises known abundance upwards by including the large non-breeding population and estimating a Read More
Soumis par:
Colin Southwell

Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)

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Résumé:

As a contribution to the work program of WG-EMM-STAPP to estimate krill consumption by predators, this paper presents estimates of krill consumption by crabeater seals off East Antarctica between 64ºE-150ºE, which includes all of Division 58.4.1 and part of Division 58.4.2. Krill consumption by crabeater seals in this region in 1999/00 was estimated to be 3.8 (95% CI 2.4-6.0) million tonnes Read More
Soumis par:
Colin Southwell

Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)

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Résumé:

We describe current work to obtain krill consumption estimates for flying seabirds in CCAMLR Divisions 58.4.1 and 58.4.2. We are currently compiling a database of search and count effort for flying seabirds to assess the extent and rigour of existing data, and conducting a large-scale abundance survey of snow petrels. We plan to adapt a bio-energetics model developed for breeding Adélie Read More
Soumis par:
Colin Southwell

Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)

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Résumé:

This paper summarises progress by WG-EMM-STAPP in estimating krill consumption by air-breathing predators in CCAMLR management units. There have been significant advances in estimating krill consumption by pack-ice seals and penguins since the last update in 2011. Estimates of pack-ice seal abundance are now available for Areas 48, 88 and 58. Krill consumption by crabeater seals, the most Read More
Soumis par:
Colin Southwell

Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)

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Résumé:

Conservation Measure 51-07 provides an interim distribution of the trigger level in the fishery for Euphausia superba in Statistical Subareas 48.1, 48.2, 48.3 and 48.4.  It was established because the Commission, in the preambular paragraphs to that measure, recognised that localised catches up to the trigger level may affect krill predators.  They wished to establish a Read More
Soumis par:
Andrew Constable

Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)

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Résumé:

ATCM 39/XP018 provides an introduction to the Southern Ocean Observing System (SOOS; www.soos.aq).  SOOS aims to facilitate the collection and delivery of essential observations on dynamics and change of Southern Ocean systems to all international stakeholders (researchers, governments, industries).

SOOS will be implemented regionally through Read More
Soumis par:
Andrew Constable

Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)

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Résumé:

ATCM 39/XP019 discusses the work of SC-CAMLR on climate change.  It notes that the effects of climate change also includes the effects of ocean acidification.  Articles II and IX provide the impetus for work in the Scientific Committee on the effects of climate change, in order to provide, in a timely manner, the ‘best scientific evidence available’ on three issues

1. Risks Read More
   Soumis par:
   Andrew Constable
   
   Approuvé par:
   Doro Forck (Secrétariat de la CCAMLR)
   
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Résumé:

Six Members notified a total of 18 vessels for krill fisheries in 2016/17 in Subareas 48.1 (17 vessels), 48.2 (16), 48.3 (15) and 48.4 (10), and Divisions 58.4.1 (3) and 58.4.2 (3); there were no notifications submitted for exploratory fisheries for krill. Notification details are available on the CCAMLR website and the notified information on the fishing operation and gear is summarised in Read More
Soumis par:
David Ramm (Secrétariat de la CCAMLR)

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Résumé:

During the last years, a large amount of information was gathered and shared in one unique project for the development of a representative system of MPAs in Domain 1. This process integrates, compiles, analyses and exposes a large amount of information, not only contributing to the best science available but also providing a platform for the sharing and visualization of information, further Read More
Soumis par:
María Mercedes Santos

Approuvé par:
Enrique Marschoff (Argentina)

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Résumé:

Feedback Management (FBM) requires adequate data that can be collected with a minimum of extra effort. Traditional survey practice requires a pre determined survey design that support statistical handling of the collected data into stock abundance information. Godø et al. (2015) (WG-EMM-15/13) show the inherent variability of catch and acoustic data collected during fishing operation. At the Read More
Soumis par:
Olav Rune Godø (Norvège)

Approuvé par:
Olav Rune Godø (Norvège)

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Résumé:

The most common and widespread salp in the Southern Ocean is Salpa thompsoni. It is characterized by a circumpolar distribution and its appearance is clearly associated with the occurrence of the Antarctic Circumpolar Current (ACC). This area of the Southern Ocean is characterized by a relatively low productivity and high water temperature. In recent years the expansion of Read More
Soumis par:
Anna Panasiuk (Pologne)

Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)

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Résumé:

Monitoring and hydroacoustic assessment of the distribution and biomass of krill (Euphausia superba) was held on board the BIC Humboldt during scientific campaigns Peru to Antarctica in the austral summer: Antar XXI (15 to 22 February 2013) and Antar XXII (22 to 31 January 2014). The areas included Bransfield Strait, Joinville and around Elephant Island (Antar XXI: : 8 040 nm2 with 10 Read More
Soumis par:
Jorge Zuzunaga Zuzunaga (Pérou)

Approuvé par:
Luis Chang Boldrini

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Résumé:

This published paper utilizes data from an acoustic low frequency system to collect information on prey distribution and abundance as well as distribution and activity of their top predators. The system transmits broadband signals from 700 - 1500 Hz and a towed array receives the returned echoes used in the assessment of prey abundance and distribution. Periodically, only the Read More
Soumis par:
Olav Rune Godø (Norvège)

Approuvé par:
Olav Rune Godø (Norvège)

Publication:
Nature, 531 (2016), doi: 10.1038/nature16960

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Résumé:

No reliable measures of age currently exist in the Antarctic krill, Euphausia superba (Dana, 1852). The eyestalks from 51 individuals were dissected, cut in longitudinal sections and studied for identifying growth zones. The krill was collected at the South Orkney Islands during January and February 2015, and varied between 30 and 53 mm in total body length. Up to six growth zones Read More
Soumis par:
Bjørn Krafft (Norvège)

Approuvé par:
Olav Rune Godø (Norvège)

Publication:
J. Crust. Biol., 36 (3) (2016): 267–273, doi: 10.1163/1937240X-00002428

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Résumé:

This report presents the outcome from the sixth of the annual survey seasons (2016) off the South Orkney Islands including the preliminary results from continuously recorded acoustic data, krill demography and other macro zooplankton from trawl station work, krill predator sightings data as well as krill-experimental work carried out on onboard.

Soumis par:
Bjørn Krafft (Norvège)

Approuvé par:
Olav Rune Godø (Norvège)

Publication:
Institute of Marine Research Report, 20 (2016): www.imr.no/filarkiv/2016/05/antarctic_krill_survey_at_south_orkney_islands_2016.pdf/nb-no

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Résumé:

The ability of Antarctic krill Euphausia superba Dana to withstand the overwintering period is critical to their success. Laboratory evidence suggests that krill may shrink in body length during this time in response to the low availability of food. Nevertheless, verification that krill can shrink in the natural environment is lacking because winter data are difficult to obtain. One Read More
Soumis par:
Chris Darby

Approuvé par:
Chris Darby

Publication:
Mar. Ecol. Prog. Ser., 547 (2016): 61–78

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Résumé:

The Antarctic toothfish (Dissostichus mawsoni Norman, 1937) is one of the main target species of commercial fisheries in the Antarctic. It is an endemic and is found along the shelf of Antarctica, as well as on the slopes of seamounts, underwater elevations and islands in the sub-Antarctic. It feeds on a variety of fish and cephalopods and can be an intermediate/paratenic host of some Read More
Soumis par:
Andrey Petrov

Approuvé par:
Dmitry Kremenyuk (Fédération de Russie)

Publication:
Polar Res., 35 (2016): 29364, http://dx.doi.org/10.3402/polar.v35.29364

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Résumé:

The reproductive success of southern right whale (Eubalaena australis) depends on body condition and, therefore, on foraging success. This, in turn, might be affected by climatically driven change in the abundance of the species main prey, krill (Euphausia superba), on the feeding grounds. Annual data on southern right whale number of calves were obtained from aerial surveys Read More
Soumis par:
Keith Reid

Approuvé par:
Andrew Wright (Secrétariat de la CCAMLR)

Publication:
Sci. Rep., 6 (2016): 28205, doi: 10.1038/srep28205

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Résumé:

Petermann Island (65°10'S, 64°10'W), one of the Antarctic Peninsula’s most frequently visited locations, is at the epicenter of a rapid shift in which an Adélie penguin dominated fauna is becoming gentoo penguin dominated. Over the course of five seasons, the breeding productivity of Adélie and gentoo penguins breeding at Petermann Island were monitored to identify drivers of this rapid Read More
Soumis par:
Chris Darby

Publication:
Polar Biol, 33 (2010): 493–503, doi: 10.1007/s00300-009-0726-y

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Résumé:

Adaptive feedback management is a core component of the ecosystem based management approach that is being implemented by the Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR) and Antarctic Treaty System (ATS). The Mapping Application for Penguin Populations and Projected Dynamics (MAPPPD) is a web-based, open access, decision support tool that would greatly assist Read More
Soumis par:
Chris Darby

Publication:
(in press)

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Résumé:

This study aims to provide consistent information to explain the steady declining trend in the number of breeding pairs of Antarctic shag Phalacrocorax bransfieldensis in two colonies on Nelson Island, South Shetland Islands, southern Atlantic sector of Antarctica, which was observed during the 1990s up to the mid 2000s over an overall monitoring period Read More
Soumis par:
Esteban Barrera-Oro (Argentina)

Approuvé par:
Enrique Marschoff (Argentina)

Publication:
Polar Biol., (2015), doi: 10.1007/s00300-015-1850-5

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Résumé:

We developed a bioenergetics model to estimate prey consumption by the Adelie penguin. The model predicts prey consumption throughout the breeding season and incorporates uncertainty in model parameters using Monte Carlo simulation. The model was parametised with data obtained from the CEMP site at Bechervaise Island using 13 years of data, a year when penguins successfully reared chicks, and Read More
Soumis par:
Colin Southwell

Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)

Publication:
Mar. Ecol. Prog. Ser., 526 (2015): 183–197, doi: 10.103354/meps11182

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Résumé:

Reliable statements about variability and change in marine ecosystems and their underlying causes are needed to report on their status and to guide management. Here we use the Framework on Ocean Observing (FOO) to begin developing ecosystem Essential Ocean Variables (eEOVs) for the Southern Ocean Observing System (SOOS). An eEOV is a defined biological or ecological quantity, which is Read More
Soumis par:
Andrew Constable

Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)

Publication:
J. Mar. Sys., 161 (2016): 26–41

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Résumé:

There is a substantial harvestfor Antarctic krill in the Southern Ocean, butlittle regular scientific monitoring of the resource. Recently, however, the Commission for the Conservation of Marine Living Resources (CCAMLR) has initialised a process to make use of acoustic data from commercial fisheries to increase the amount of relevant information available for making management decisions. We Read More
Soumis par:
Georg Skaret (Norvège)

Approuvé par:
Olav Rune Godø (Norvège)

Publication:
Fish. Res., 178 (2016): 114–121, http://dx.doi.org/10.1016/j.fishres.2015.09.017 0165-7836

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Résumé:

Weather extremes are one important element of ongoing climate change, but their impacts are poorly understood because they are, by definition, rare events. If the frequency and severity of extreme weather events increase, there is an urgent need to understand and predict the ecological consequences of such events. In this study, we aimed to quantify the effects of snow storms on nest survival Read More
Soumis par:
Andrew Lowther

Approuvé par:
Olav Rune Godø (Norvège)

Publication:
Ecology and Evolution, (2014), doi: 10.1002/ece3.1357

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Résumé:

Polar Regions are experiencing environmental changes at unprecedented rates. ese changes can spread throughout entire food webs from lower trophic levels to apex predators. As many top predators forage over large areas, these indirect e ects may be associated with large-scale patterns of climate variability. Using global climate indices that are known to impact the Southern Ocean ecosystem ( Read More
Soumis par:
Andrew Lowther

Approuvé par:
Olav Rune Godø (Norvège)

Publication:
Ecography, 39 (2016): 496–505, doi: 10.1111/ecog.01659

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Résumé:

Commercial fisheries may impact marine ecosystems and affect populations of predators like seabirds. In the Southern Ocean, there is an extensive fishery for Antarctic krill Euphausia superba that is projected to increase further. Comparing distribution and prey selection of fishing operations versus predators is needed to predict fishery-related impacts on krill-dependent predators. In this Read More
Soumis par:
Andrew Lowther

Approuvé par:
Olav Rune Godø (Norvège)

Publication:
PLoS One (2016) (in press)

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Résumé:

The condition and survival of Antarctic krill (Euphausia superba) strongly depends on sea ice during winter. How krill utilize sea ice depends on several factors such as region and developmental stage. A comprehensive understanding of sea ice habitat use by krill, however, remains largely unknown. The aim of this study was to improve the understanding of the krill's interaction Read More
Soumis par:
Fokje Schaafsma

Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)

Publication:
Polar Biol.,(2016), doi: 10.1007/s00300-015-1877-7

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Résumé:

Model results and diagnostics for the integrated assessment model for krill in Subarea 48.1 are summarized. Alternative potential decision rules based on the distributions of krill spawning biomass during different reference periods, and potential catches associated with those rules, are described. The model and procedures outlined in this paper synthesize work reported to CCAMLR WG-EMM, WG- Read More
Soumis par:
Doug Kinzey

Approuvé par:
George Watters

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Soumis par:
Jeremy Rusin (États-Unis d'Amérique)

Approuvé par:
George Watters

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Résumé:

At the EEM-15, it was agreed that detailed information on survey design of the dedicated cetacean sighting vessel-based krill (CSVK) survey by Japan, would be submitted with data from the first of these annual surveys to the next meeting of WG-SAM (2016), to assess the survey design, in particular the trade-offs between the primary goal of gathering information on cetaceans versus the Read More
Soumis par:
Luis Alberto Pastene Perez (Japon)

Approuvé par:
Taro Ichii

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Résumé:

Catch at length is an important input into any stock assessment. Consequently, collecting length data from the catch is a task undertaken by all at sea observes in CCAMLR fisheries. Although analyses in the past have looked to the optimal design of the observer program, in terms of levels of coverage of vessels and hauls (e.g., Agnew et al., 2009; 2010), less attention have been focussed on Read More
Soumis par:
Dirk Welsford

Approuvé par:
Dirk Welsford

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