WG-EMM-08/01 Mostrar menos información |
Agenda for the Working Group on Ecosystem Monitoring and Management (St Petersburg, Russia, 23 July to 1 August 2008) |
|
WG-EMM-08/02 Mostrar menos información |
List of participants |
|
WG-EMM-08/03 Mostrar menos información |
List of documents |
|
WG-EMM-08/04 Mostrar menos información |
CEMP INDICES: 2008 UPDATE Secretariat
Resumen:
The CCAMLR Ecosystem Monitoring Program (CEMP) uses indices derived from data on indicator species collected by standard methods in the three Integrated Study Regions of the Convention Area. Each year the Secretariat updates the standardised index values and provides a summary of trends and anomalies in these data. This report covers predator indices only. Data were submitted by 7 Members Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5 |
WG-EMM-08/05 Mostrar menos información |
KRILL FISHERY REPORT: 2008 UPDATE Secretariat
Resumen:
As reported to the CCAMLR Secretariat, 6 vessels from 5 Contracting Parties are fishing for krill in Area 48 in the 2007/08 season, and these vessels have taken 84110 t of krill to date. The preliminary estimate of the total catch of krill for the season is approximately 108343 t. This compares with 104586 t of krill reported in the STATLANT data for 2006/07. With the exception of Poland, all Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
6 |
WG-EMM-08/06 Mostrar menos información |
SUMMARY OF NOTIFICATIONS FOR KRILL FISHERIES IN 2008/09 Secretariat
Resumen:
This paper summarises the notifications received from Members intending to participate in krill fisheries in the CCAMLR Convention Area in the 2008/09 season.
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
4 |
WG-EMM-08/07 Mostrar menos información |
DEMOGRAPHY OF ANTARCTIC KRILL AND OTHER EUPHAUSIACEA IN THE LAZAREV SEA - LAKRIS THE GERMAN CONTRIBUTION TO CCAMLR-IPY IN SUMMER 2008 V. Siegel, J. Edinger, M. Haraldsson, K. Stürmer, M. Vortkamp (Germany)
Resumen:
A standardized krill net sampling survey was conducted in the Lazarev Sea (CCAMLR Subarea 48.6) in austral summer during December/January 2007/08 (LAKRIS, Lazarev Krill Study) as a German contribution to CCAMLR-IPY 2008. At the start of the survey period the entire survey area was completely covered with seasonal pack-ice, but rapidly retreating until the end of the survey in late January. 52 Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
1.2 |
WG-EMM-08/08 Mostrar menos información |
REPORT OF THE PREDATOR SURVEY WORKSHOP (Hobart, Australia, 16 to 20 June 2008) |
5.1 |
WG-EMM-08/09 Mostrar menos información |
REPORT FROM INVITED EXPERT TO WG-EMM-PSW-08 R. Fewster (Invited Expert)
Resumen:
Dr Rachel Fewster (Department of Statistics, Faculty of Science, University of Auckland) participated in the WG-EMM Predator Survey Workshop as Invited Expert. The terms of reference for her participation were as follows: 1. Participate in the Workshop on Predator Abundance in June 2008 2. Provide consultation and advice on procedures for: (i) estimating abundance of important krill predators Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.1 |
WG-EMM-08/10 Mostrar menos información |
REFERENCE OBSERVATIONS FOR VALIDATING AND TUNING OPERATING MODELS FOR KRILL FISHERY MANAGEMENT IN AREA 48 S. Hill (United Kingdom), J. Hinke (USA), É. Plagányi (South Africa) and G. Watters (USA)
Resumen:
In 2007 WG-SAM defined a set of reference observations for validating and tuning proposed models to evaluate krill catch allocation options for Area 48 (the SAM calendar). The observations, which were endorsed by WG-EMM, were largely qualitative and relative. We used available data to translate these observations into numerical terms (the numerical calendar). We provide spatially-resolved Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
2 |
WG-EMM-08/11 Mostrar menos información |
PROPOSED SMALL-SCALE MANAGEMENT UNITS FOR THE KRILL FISHERY IN SUBAREA 48.4 AND AROUND THE SOUTH SANDWICH ISLANDS P.N. Trathan, A.P.R. Cooper and M. Biszczuk (United Kingdom)
Resumen:
Relatively little ecological information is available for the South Sandwich Islands, so the diversity of information available to determine potential SSMU boundaries is limited. Nevertheless, a suggested SSMU is proposed, based on the foraging distance of the most abundant land-based consumer of krill breeding on the islands, the chinstrap penguin. The proposed SSMU represents a single Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
2 |
WG-EMM-08/12 Mostrar menos información |
ALLOCATING THE PRECAUTIONARY CATCH LIMIT FOR KRILL AMONGST THE SMALL-SCALE MANAGEMENT UNITS IN AREA 48: THE IMPLICATIONS OF DATA UNCERTAINTIES P.N. Trathan and S.L. Hill (United Kingdom)
Resumen:
Over the past few years WG-EMM has been developing a management procedure for the krill fishery in Statistical Area 48. This procedure will involve, inter alia, subdivision of the precautionary catch limit among a set of small-scale management units. So far the Working Group has identified six candidate methods for subdividing the catch limit and rejected one of them as unsuitable (Option 1 - Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
2 |
WG-EMM-08/13 Mostrar menos información |
DEVELOPING FOUR PLAUSIBLE PARAMETERISATIONS OF FOOSA (A SO-CALLED REFERENCE SET OF PARAMETERISATIONS) BY CONDITIONING THE MODEL ON A CALENDAR OF EVENTS THAT DESCRIBES CHANGES IN THE ABUNDANCES OF KRILL AND THEIR PREDATORS IN THE SCOTIA SEA G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)
Resumen:
We tuned four parameterizations of Foosa to provide predictions that are consistent with the agreed calendar, as specified by the WG-SAM, that describes changes in the abundances of krill and their predators in the Scotia Sea. First, we compiled a set of base parameterizations from information in the literature and following specifications laid out by the WG-SAM. These base parameterizations Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
2.2 |
WG-EMM-08/14 Mostrar menos información |
DEVELOPING MODELS OF ANTARCTIC MARINE ECOSYSTEMS IN SUPPORT OF CCAMLR AND IWC A. Constable (Australia)
Resumen:
Ecosystem models are being developed to explore a range of issues globally. This paper is currently in draft form open to comment and is being developed to provide an introduction to the CCAMLR-IWC Workshop to review input data for Antarctic marine ecosystem models. It summarises background to the use of ecosystem models in CCAMLR and the IWC and a history of the developmental work in those Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
7.4 |
WG-EMM-08/15 Mostrar menos información |
CCAMLR-IWC WORKSHOP TO REVIEW INPUT DATA FOR ANTARCTIC MARINE ECOSYSTEM MODELS: UPDATE ON PROGRESS 2008 A. Constable and N. Gales (Co-conveners)
Resumen:
The “CCAMLR-IWC Workshop to review input data for Antarctic marine ecosystem models” will be held at the CCAMLR Headquarters in Hobart Australia on 11-15 August 2008. This paper provides an update on progress towards the holding of this workshop at the CCAMLR Secretariat . A revised budget is presented for consideration primarily to take account of the review materials being produced without Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
7.4 |
WG-EMM-08/16 Mostrar menos información |
DISTRIBUTION OF KRILL AT THRESHOLD DENSITIES SUITABLE FOR FISHING IN THE ATLANTIC SECTOR: ANALYSIS OF THE 2000 SYNOPTIC SURVEY DATA S. Hill and D. Agnew (United Kingdom)
Resumen:
1. We used the CCAMLR 2000 synoptic survey acoustic dataset to compare pelagic and shelf SSMUs in terms of the frequency of 1nm integration units with krill densities above and below a range of threshold values. 2. In general pelagic SSMUs had markedly lower frequencies of fishable integration units where the threshold density for fishing was set at 100 gm2 following Kasatkina (2003). 3. This Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
6.3 |
WG-EMM-08/17 Mostrar menos información |
A RE-APPRAISAL OF THE TOTAL BIOMASS AND ANNUAL PRODUCTION OF ANTARCTIC KRILL A. Atkinson (United Kingdom), V. Siegel (Germany), E.A. Pakhomov (South Africa), M.J. Jessopp (United Kingdom) and V. Loeb (USA)
Resumen:
Despite much research on Euphausia superba, estimates of their total biomass and production are still very uncertain. Recently, circumpolar krill databases, combined with growth models and revisions in acoustics have made it possible to refine previous estimates. Net-based databases of density and length frequency (KRILLBASE) yield a summer distributional range of ~19 x106 km2 and a mean total Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/18 Mostrar menos información |
PRELIMINARY REPORT OF THE NEW ZEALAND RV TANGAROA IPY-CAML SURVEY OF THE ROSS SEA REGION, ANTARCTICA IN FEBRUARY-MARCH 2008 S.M. Hanchet, J. Mitchell, D. Bowden, M. Clark, J. Hall, R. O’Driscoll, M. Pinkerton and D. Robertson (New Zealand)
Resumen:
During February and March 2008 New Zealand carried out a major research voyage into the Ross Sea region in support of the International Polar Year Census of Antarctic Marine Life (IPY-CAML). The 50 day voyage on the research vessel Tangaroa involved an extensive survey of marine organisms from viruses to pelagic and demersal fish and cephalopods from the surface down to depths of 3500 m, and Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
8 |
WG-EMM-08/19 Mostrar menos información |
CALIBRATION ERROR IN THE AMLR PLANKTON TIME SERIES C. Reiss (USA)
Resumen:
Analysis of the time series of the volume of water filtered during tows using a 1.8 m Isaac-Kidd Midwater Trawl (IKMT) from 1992 to 2007 showed a marked decline (~35%) in the volume of water filtered beginning in 2000. Analysis of tow time duration, reported ship speed during tows, and mean number of rotor counts from the flow meters showed no significant trends. The discrepancy in volume is Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.4 |
WG-EMM-08/20 Mostrar menos información |
LETTER TO DRS REID, WATTERS AND JONES IN REGARD TO “DISAPPEARANCE OF TOOTHFISH FROM MCMURDO SOUND” D.G. Ainley, S.F. Ackley, K. Arrigo (USA), G. Ballard (New Zealand), J.P. Barry (USA), L. Blight (Canada), P. Broady, B. Davison (New Zealand), P. Dayton, A.L. DeVries, K. Dugger, J.T. Eastman, S.D. Emslie (USA), C. Evans (New Zealand), R.A. Garrott, G. Hofmann, S. Kim, G. Kooyman, S.S. Jacobs (USA), G. Lauriano (Italy), A. Lescroël (France), D.R. MacAyeal (USA), M. Massaro (New Zealand), S. Olmastroni (Italy), P.J. Ponganis (USA), E. Robinson (New Zealand), D.B. Siniff, W.O. Smith (USA), I. Sti
Resumen:
We the undersigned wish to bring to your attention a potentially grave situation that needs to be addressed without significant delay. Together we have worked in the Ross Sea and vicinity for more than 300 person-years, and in the process have gained considerable knowledge about the Ross Sea ecosystem. Several recent findings indicate that the Antarctic toothfish (Dissostichus mawsoni) is Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
7 |
WG-EMM-08/21 Mostrar menos información |
DECLINE OF THE ANTARCTIC TOOTHFISH AND ITS PREDATORS IN MCMURDO SOUND AND THE SOUTHERN ROSS SEA, AND RECOMMENDATIONS FOR RESTORATION A.L. DeVries, D.G. Ainley and G. Ballard (USA) |
7 |
WG-EMM-08/22 Mostrar menos información |
ADDRESSING UNCERTAINTY OVER THE IMPORTANCE OF ANTARCTIC TOOTHFISH AS PREY OF SEALS AND WHALES IN THE SOUTHERN ROSS SEA: A REVIEW D. Ainley and D. Siniff (USA)
Resumen:
An uncertainty heretofore has existed over the importance of Antarctic toothfish (Dissostichus mawsoni) as prey of top predators in the Ross Sea. We reviewed the literature to assess the relative weight that should be given to direct, observational evidence of predator diet composition, as opposed to indirect evidence from scat and biochemical analysis. As a result of this assessment, it is Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
7 |
WG-EMM-08/23 Mostrar menos información |
AERIAL SURVEYS OF WEDDELL SEALS DURING 2007-08, WITH NOTES ON THE HISTORY OF AERIAL CENSUSES IN THE ROSS SEA AND RECOMMENDATIONS FOR CONTINUED COUNT EFFORT D. Siniff and D. Ainley (USA)
Resumen:
Weddell seals (Leptonychotes weddellii) have proved to be an important predator of Antarctic toothfish (Dissostichus mawsoni), and currently there is no ecosystem monitoring program (CEMP) in place under CCAMLR with respect to the Ross Sea toothfish fishery. In a previous paper submitted to EMM in 2007 (WG-EMM 07/13), we described procedures whereby aerial photography could be used to monitor Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
7 |
WG-EMM-08/24 Mostrar menos información |
STATE OF ANTARCTIC KRILL (EUPHASIA SUPERBA) FISHERIES IN STATISTICAL SUBAREA 48.2 IN 2008 V.A. Bibik and N.N. Zhuk (Ukraine)
Resumen:
The article is based on the data sampled by the authors in the 29th cruise of f/v “Konstruktor Koshkin” (shipowner is the company “Interrybflot”, Sevastopol, Ukraine) in Subarea 48.2 from March till April 2008. The paper has analyzed the distribution of commercial aggregations of krill, their fishable biomass in the different periods of observations, krill biological state, hydro Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
2 |
WG-EMM-08/25 Mostrar menos información |
DATA ON FEEDING AND FOOD OBJECTS OF SOUTHERN MINKE WHALES S.G. Bushuev (Ukraine)
Resumen:
Presented research on feeding and the dietary structure by species of minke whales, conducted on board the whaling fleet Sovietskaya Ukraina during the 1982/83 - 1985/86 seasons. Whaling was conducted in all four seasons. There have been no noticeable increase of the population size of large whales over the years after the cessation of whaling. The role of a short and profitable from the Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5 |
WG-EMM-08/26 Mostrar menos información |
COMPARISON OF THE BIOMASS OF ANTARCTIC KRILL, (EUPHAUSIA SUPERBA), AROUND THE SOUTH SHETLAND AND SOUTH ORKNEY ISLANDS IN THREE YEARS: 1999, 2000 AND 2008 C. Reiss and A. Cossio (USA)
Resumen:
Using a combination of techniques, we examine data from three cruises in 1999, 2000 and 2008 to calculate the biomass and demographic characteristics of Antarctic krill (Euphausia superba) surrounding the South Orkney and South Shetlands Islands. Net tow data show that length frequency distributions of krill between Elephant Island and the South Orkney Islands were similar. The similarity in Read More
Aprobado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/27 Mostrar menos información |
Trophic study of Ross Sea Antarctic toothfish (Dissostichus mawsoni) using carbon and nitrogen stable isotopes S.J. Bury, M.H. Pinkerton, D.R. Thompson, S. Hanchet, J. Brown and I. Vorster (New Zealand)
Resumen:
This report amalgamates stable isotope analyses of fish (n=476), squid (n=50) and octopod (n=17) samples obtained from long-line fishing vessels from four CCAMLR SSRUs (88.1C, 88.1H, 88.1I and 88.1J) during two fishing seasons 2005/6 and 2006/7. The species sampled were: 6 fish: Antarctic toothfish (Dissostichus mawsoni, n= 100), Patagonian toothfish (Dissostichus eleginoides, n=8), deep sea Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
7 |
WG-EMM-08/28 Mostrar menos información |
THE ANTARCTIC KRILL AND ECOSYSTEM SURVEY WITH R/V “G. O. SARS” IN 2008 S.A. Iversen (Norway), W. Melle, E. Bagøien, D. Chu, B. Edvardsen, B. Ellertsen, E. Grønningsæter, K. Jørstad, E. Karslbakk, T. Klevjer, T. Knutsen, R. Korneliussen, H. Kowall, B. Krafft, S. Kaartvedt, P.B. Lona, S. Murray, L. Naustvoll, L. Nøttestad, M. Ostrowski, V. Siegel, Ø. Skagseth, G. Skaret, H. Søiland, X. Zhao and C.B. Årnes
Resumen:
This report describes the multipurpose AKES survey (Antarctic Krill and Ecosystem Studies) carried out with R/V G. O. Sars, 4.01-27.03.08, including some selected results. The main purposes for the AKES project were to • evaluate the links between the krill resources and distribution in the area and Bouvetøya based mammals and birds • study krill biology and ecology • establish TS (Target Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5 |
WG-EMM-08/29 Mostrar menos información |
IN SITU MEASUREMENTS OF TILT ANGLE DISTRIBUTION AND TARGET STRENGTH IN ANTARCTIC KRILL (EUPHAUSIA SUPERBA) G. Skaret, S.A. Iversen, T. Knutsen, R.J. Korneliussen, E. Ona, R. Pedersen, A. Totland, T. Torkelsen (Norway) and X. Zhao (China)
Resumen:
Knowledge of the scattering properties of Antarctic krill (Euphausia superba) is crucial for biomass estimates of the species, but in situ investigations regarding this are still very scarce. We conducted a field study in the Southern Ocean where one of the objectives was to acquire data on orientation angles and target strength of Antarctic krill. The main investigations were done off South Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.4 |
WG-EMM-08/30 Mostrar menos información |
A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A PRECAUTIONARY CATCH LIMIT AMONG SMALL-SCALE MANAGEMENT UNITS DURING STAGE 1 OF THE STAGED DEVELOPMENT OF THE KRILL FISHERY IN SUBAREAS 48.1, 48.2, AND 48.3. G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)
Resumen:
We used Foosa and the reference set of parameterizations developed by Watters et al. (2008) to assess the risks and tradeoffs associated with various management strategies for subdividing the precautionary krill catch limit among SSMUs in Area 48. Our methodological approach follows directly from specifications made by the WG-SAM and the WG-EMM. We predict that the tradeoffs inherent in Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
6.3 |
WG-EMM-08/31 Mostrar menos información |
Relationships between oceanographic environment and distribution of krill and baleen whales in the Ross Sea and adjacent waters, Antarctica in 2004/05 M. Naganobu, S. Nishiwaki, H. Yasuma, R. Matsukura, Y. Takao, K. Taki, T. Hayashi, Y. Watanabe, T. Yabuki, Y. Yoda, Y. Noiri, M. Kuga, K. Yoshikawa, N. Kokubun, H. Murase, K. Matsuoka, T. Iwami and K. Ito (Japan)
Resumen:
We have surveyed the ecological interactions between the oceanography and biological ecosystem in the Ross Sea and its adjacent waters with a joint survey the R/V Kaiyo Maru and the Japanese Whale Research Program in the 2004/05 austral summer. We compared the relationship between the geographical distribution of the main biological prey and predator populations such as krill including other Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/32 Mostrar menos información |
Relationship between distribution of Antarctic krill (Euphausia superba) and environmental index MTEM-200 in the Antarctic Ocean throughout the year M. Naganobu, T. Kitamura and K. Hasunuma (Japan)
Resumen:
Antarctic krill (Euphausia superba) is the key species of the Antarctic marine ecosystem and human fishing resources. Essentially, relationships between krill distribution and oceanographic conditions have been an age-old recurrent problem and many papers have been published on the subject since the British Discovery Reports. However, there was no remarkable achievement in particular the Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
4.2 |
WG-EMM-08/33 Mostrar menos información |
Short note: Time series of Drake Passage Oscillation Index (DPOI) during 1952-2008 and its possible influence on environmental variability M. Naganobu, J. Kondo and K. Kutsuwada (Japan)
Resumen:
An assessment of the environmental processes influencing variability in the recruitment and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/34 Mostrar menos información |
Systematic Coverage’ by scientific observers on Krill Fishing Vessels Delegation of Japan
Resumen:
A work plan to establish an observer scheme for krill fishery was agreed at the previous Scientific Committee and the Commission. The first step was to consider ‘systematic coverage’ of the observers. In this document, Japan proposes a framework for scientific observer system for krill fishery in order to obtain ‘systematic coverage’.
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
4.3 |
WG-EMM-08/35 Mostrar menos información |
Distribution patterns and biomasses of Antarctic krill (Euphausia superba) and ice krill (E. crystallorophias) with note on distribution of Antarctic minke whales (Balaenoptera bonaerensis) in the Ross Sea in 2005 H. Murase, H. Yasuma, R. Matsukura, Y. Takao, K. Taki, T. Hayashi, T. Yabuki, T. Tamura, K. Konishi, K. Matsuoka, K. Miyashita, S. Nishiwaki and M. Naganobu (Japan)
Resumen:
Distribution patterns and biomasses of Antarctic and ice krill in the Ross Sea in austral summer in 2005 were studied using a multi-disciplinary survey data set combining cetacean, krill and oceanography data. Two research vessels, KM and KS2, conducted the hydroacoustic surveys independently in the same area. Distribution patterns and length frequency information for two species were obtained Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/36 Mostrar menos información |
Community Structure of copepods in epipelagic layers in the Ross Sea and neighboring waters Y. Watanabe, S. Sawamoto, T. Ishimaru and M. Naganobu (Japan)
Resumen:
During the 9th research cruise of the R/V Kaiyo-maru, copepod samples were collected from three layers between the surface and 200 m with RMT 8m2 along the three longitudinal lines in the Ross Sea and its neighboring waters. Twenty three copepod species belonging to 13 families were identified and 8 unidentified taxa appeared in the study area. Samples were categorized into four major groups Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/37 Mostrar menos información |
A risk management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems K. Martin-Smith (Australia)
Resumen:
CCAMLR adopted a new conservation measure in 2007 (CM 22-06) to ensure that significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems (VMEs) are avoided. Due to the high levels of uncertainty surrounding both the evidence of VME presence and the consequences of interaction with different types of gear, a risk management framework is proposed, similar to that which has Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
3.3 |
WG-EMM-08/38 Mostrar menos información |
Notification of Vulnerable Marine Ecosystems in Statistical Area 58.4.1 Submitted by Australia
Resumen:
Conservation Measure 22-06 was adopted to ensure that significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems (VMEs) are avoided. In order to satisfy the requirements of CM 22-06 a method is proposed to notify CCAMLR of the presence of VMEs and their location using a simple pro-forma. Two VMEs identified during the Australian CEAMARC-CASO cruise are notified using Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
3.3 |
WG-EMM-08/39 Mostrar menos información |
KRILL FISHERY BEHAVIOUR IN THE SOUTHWEST ATLANTIC S. Kawaguchi (Australia)
Resumen:
10 years worth of recent finescale haul-by haul krill data were used to characterize behaviour of krill fishery. Analysis of travel distance in relation to catch level revealed a pattern that mean travel distances are longer after the least catch levels, and the travel distances decreases as catch level increases to certain catch levels but distance increase again above that catch level. Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
4.2 |
WG-EMM-08/40 Mostrar menos información |
KRILL FISHERY BEHAVIOUR IN THE 1999/2000 SEASON S. Kawaguchi (Australia)
Resumen:
This document provides information on krill fishery behaviour and fishing ground condition in 1999/2000 season to assist consideration of the regional krill density and distributional conditions observed in the CCAMLR 2000 synoptic survey. The vessels seemed to have been moving around more compared to other fishing seasons to look for preferred targets. The 1999/2000 fishing season was the Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/41 Mostrar menos información |
UPDATED KRILL RECRUITMENT DATA FOR THE ELEPHANT ISLAND REGION OF THE SOUTH SHETLAND ISLANDS, ANTARCTICA; 2002-2008 C. Reiss (USA)
Resumen:
The proportional krill recruitment index is updated from 2002 to present using data from the US AMLR surveys around Elephant Island, Antarctica. Proportional recruitment indices were derived from the CMIX procedure, and were also derived as a proportion of the <30 mm length class for day and night samples. All indices showed that high recruitment (R1) occurred in 2003 and in 2008, with low Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/42 Mostrar menos información |
A PRELIMINARY BALANCED TROPHIC MODEL OF THE ECOSYSTEM OF THE ROSS SEA, ANTARCTICA, WITH EMPHASIS ON APEX PREDATORS M.H. Pinkerton, J.M. Bradford-Grieve and S.M. Hanchet (New Zealand)
Resumen:
We report on the development of a mass balanced carbon-budget trophic model of the Ross Sea as a step towards investigating ecosystem effects of the fishery for Antarctic toothfish (Dissostichus mawsoni). The model has 30 trophic groups representing all the major biota of the Ross Sea. Many of the lower trophic level species in the model are grouped by functional role because information is Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
7 |
WG-EMM-08/43 Mostrar menos información |
TROPHIC OVERLAP OF WEDDELL SEALS (LEPTONYCHOTES WEDDELLI) AND ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA, ANTARCTICA M.H. Pinkerton, A. Dunn and S.M. Hanchet (New Zealand)
Resumen:
We present information to investigate the significance of Antarctic toothfish as a prey item for Weddell seals in the Ross Sea. • We summarise the life history of Weddell seals to provide an overview of their use of the Ross Sea. As consumption of prey by Weddell seals (both the amount and type of prey) will vary between different life history stages at different times of the year in different Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
7 |
WG-EMM-08/44 Mostrar menos información |
CONDITIONING SMOM USING THE AGREED CALENDAR OF OBSERVED CHANGES IN PREDATOR AND KRILL ABUNDANCE: A FURTHER STEP IN THE DEVELOPMENT OF A MANAGEMENT PROCEDURE FOR KRILL FISHERIES IN AREA 48 É.E. Plagányi and D.S. Butterworth (South Africa)
Resumen:
The updated version of the Spatial Multi-species Operating Model (SMOM) of krill-predator-fishery dynamics described in an accompanying paper is conditioned using the WG-SAM set of reference observations for Area 48 (the SAM calendar). Results are presented for two implementations of SMOM, one with the time series of krill abundance fixed on input, and the other incorporating an explicit model Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
2.2 |
WG-EMM-08/45 Mostrar menos información |
POTENTIAL REQUIREMENTS FOR SCIENTIFIC DATA FROM THE KRILL FISHERY Secretariat
Resumen:
CCAMLR has agreed that there is a requirement for systematic observation from the krill fishery, however, current levels of observer coverage are not distributed evenly across years, regions or vessels. The number of observer days as a proportion of the number of days fished varied between c10% (Subareas 48.1 and 48.2) and c30% (in Subarea 48.3). 13 of the 16 vessels that have fished for Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
4.3 |
WG-EMM-08/46 Mostrar menos información |
Catch Uncertainty in Krill Fisheries Secretariat
Resumen:
Catch uncertainty is a component of uncertainty that is not routinely considered by CCAMLR. However, given the currently reported variability in conversion factors for krill, a nominal reported catch of 600 000t could actually represent a catch in ‘green weight’ of 2.5 million tonnes. Quantifying the level of uncertainty in reported catches of krill would require information on product Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
4.2 |
WG-EMM-08/47 Mostrar menos información |
PROGRESS TOWARDS EXPERT GROUP MANUSCRIPTS FOR THE CCAMLR-IWC WORKSHOP TO REVIEW INPUT DATA FOR ANTARCTIC MARINE ECOSYSTEM MODELS: UPDATE ON PROGRESS 2008 A. Constable and N. Gales (Co-conveners)
Resumen:
This document summarises progress by expert groups towards having manuscripts ready for the CCAMLR-IWC Workshop to review input data for Antarctic marine ecosystem models: update on progress 2008. Data collation is progressing well for all groups, except for flying birds. Draft manuscripts will be available for review at WG-EMM or from the convenors on request.
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
7.4 |
WG-EMM-08/48 Mostrar menos información |
MULTIPLE TIME SCALES OF VARIABILITY IN THE KRILL POPULATION AT SOUTH GEORGIA K. Reid, J. Watkins, E. Murphy, P. Trathan, S. Fielding and P. Enderlein (United Kingdom)
Resumen:
The South Georgia region supports a high biomass of krill that is the subject to high inter-annual variability. The lack of a self-sustaining krill population at South Georgia means that understanding the mechanism underlying these observed population characteristics is essential to a successful ecosystem-based management of any krill fishery in the region. Krill acoustic density data from Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/49 Mostrar menos información |
PROPOSED APPROACH FOR THE IDENTIFICATION OF IMPORTANT MARINE AREAS FOR CONSERVATION: USING ‘MARXAN’ SOFTWARE TO SUPPORT SYSTEMATIC CONSERVATION PLANNING S.M. Grant, J. Tratalos and P.N. Trathan (United Kingdom)
Resumen:
We provide a worked example of how a systematic conservation planning methodology (Margules & Pressey, 2000) might be used to identify important areas for conservation of biodiversity in the pelagic environment, using Subarea 48.2 (South Orkney Islands) as a pilot study area. The aim of the worked example is not to identify areas for protection or management at this stage, but rather to Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
3 |
WG-EMM-08/50 Mostrar menos información |
Flexible foraging strategies of gentoo penguins help buffer the impacts of inter-annual changes in prey availability A.K. Miller and W.Z. Trivelpiece (USA)
Resumen:
Gentoo penguins Pygoscelis papua show considerable plasticity in their diet, diving and foraging behaviors among colonies; we expected that they might exhibit similar variability over time, at a single site, since flexible foraging habits would provide a buffer against changes in prey availability. We examined inter-annual changes in the foraging strategies and diet of gentoo penguins in the Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.1 |
WG-EMM-08/51 Mostrar menos información |
DOWN-SCALING FOOSA TO MODEL THE ADMIRALTY BAY PYGOSCELID PENGUIN COLONIES: A WORK IN PROGRESS J.T. Hinke, G.M. Watters and W.Z. Trivelpiece (USA)
Resumen:
We apply Foosa at the scale of interactions among the 3 breeding penguin colonies, krill, and environmental variability at the long-term research site in Admiralty Bay, King George Island. This work-in-progress serves 2 purposes: 1) to use historical data to estimate parameters in a model-fitting framework for the purpose of model validation, and 2) to add and explore functionality in Foosa to Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
2.2 |
WG-EMM-08/52 Mostrar menos información |
PROPOSAL FOR A JOINT CEP/SC-CAMLR WORKSHOP IN 2009 Secretariat
Resumen:
At its meeting in 2007 CCAMLR endorsed the proposal from the Scientific Committee for a joint CEP/SC-CAMLR workshop. The CEP discussed this at its meeting in June 2008 and suggested a theme of ‘Opportunities for collaboration and practical cooperation between the CEP and SC-CAMLR’. The CEP suggested that areas of common interest might include, though may not be limited to: • climate change Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
8 |
WG-EMM-08/53 Mostrar menos información |
PRELIMINARY ESTIMATION OF PENGUIN BREEDING ABUNDANCE AT SPATIAL-SCALES OF RELEVANCE TO CCAMLR: INCORPORATING UNCERTAINTY IN COUNT DATA H. Lynch, R. Naveen (USA), J. McKinlay, C. Southwell (Australia), P. Trathan (United Kingdom), W. Trivelpiece, S. Trivelpiece (USA) and D. Ramm (CCAMLR Secretariat)
Resumen:
One recommendation from the Predator Survey workshop was the undertaking of some immediate inter-sessional work to be reported to WG-EMM-08. The work to be undertaken included preliminary estimation of SSMU-specific gentoo and Adélie breeding abundance in Area 48, and similar analyses of east Antarctic data for Adélie penguins. It was recognised that the abundance estimates would not be Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.1 |
WG-EMM-08/54 Mostrar menos información |
NET-BASED VERIFICATION OF ACOUSTIC TECHNIQUES USED TO IDENTIFY ANTARCTIC KRILL J. Watkins and S. Fielding (United Kingdom)
Resumen:
We validate the acoustic target classification protocols developed for the Stochastic Distorted-Wave Born Approximation (SDWBA) model using three frequency acoustic data and concurrent net hauls that were collected during two cruises to the South Georgia region in 1996. For each krill aggregation sampled by net we calculated the difference between acoustic backscatter at 120 and 38 kHz (Sv120- Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/55 Mostrar menos información |
PROPERTIES OF KRILL DISTRIBUTION IN PELAGIC AND COASTAL SSMUs OF THE SOUTH ORKNEY ISLANDS SUBAREA ACCORDING TO THE DATA OF SCIENTIFIC OBSERVATIONS AND FISHERY S.M. Kasatkina and V.N. Shnar (Russia)
Resumen:
In this paper the krill spatial distribution in the in coastal and pelagic SSMUs of the Subarea 48.2 depending on oceanological factors is considered. Estimates of krill biomass and aggregation characteristics, and krill transport factors according to different modifications of Antarctic water mass are presented based on the CCAMLR 2000 Survey data. It is shown, that despite the high biomass Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/56 Rev. 1 Mostrar menos información |
Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)
Resumen:
In order to calculate the target strength of Antarctic krill (Euphausia superba) using an acoustical scattering model, information on size, morphology, orientation, sound–speed and mass-density contrasts between the animal and the surrounding water are required. Sound-speed and mass-density of krill were measured during the Antarctic surveys conducted by the Japanese RV Kaiyo Maru in 1999/2000 Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
|
WG-EMM-08/57 Mostrar menos información |
Short note: By-catch of fishes caught by the krill fishing vessel Niitaka Maru in the South Georgia area (August 2007) T. Iwami and M. Naganobu (Japan)
Resumen:
Scientific observation on the species composition and abundance of fishes incidentally caught during Antarctic krill (Euphausia superba DANA) fisheries by F/V Niitaka Maru (5200t) were made from 6 August to 30 August to the north of South Georgia Is. Among 87 net hauls quantitatively examined, by-catch fish was recognized in 26 trawl catches (29.9%) and only one fish was found as by-catch in Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
4.2 |
WG-EMM-08/P01 Mostrar menos información |
ADULT ANTARCTIC KRILL FEEDING AT ABYSSAL DEPTHS A. Clarke and P.A. Tyler
Resumen:
Antarctic krill (Euphausia superba) is a large euphausiid, widely distributed within the Southern Ocean, and a key species in the Antarctic food web. The Discovery Investigations in the early 20th century, coupled with subsequent work with both nets and echosounders, indicated that the bulk of the population of postlarval krill is typically confined to the top 150 m of the water column. Here, Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
(Current Biology, 18: 282–285 (2008), doi: 10.1016/j.cub.2008.01.059)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/P02 Mostrar menos información |
CLIMATICALLY DRIVEN FLUCTUATIONS IN SOUTHERN OCEAN ECOSYSTEMS E.J. Murphy, P.N. Trathan, J.L. Watkins, K. Reid, M.P. Meredith, J. Forcada, S.E. Thorpe, N.M. Johnston and P. Rothery
Resumen:
Determining how climate fluctuations affect ocean ecosystems requires an understanding of how biological and physical processes interact across a wide range of scales. Here we examine the role of physical and biological processes in generating fluctuations in the ecosystem around South Georgia in the South Atlantic sector of the Southern Ocean. Anomalies in sea surface temperature (SST) in the Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
(Proc. R. Soc. B, 274: 3057–3067 (2007), doi: 10.1098/rspb.2007.1180)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/P03 Mostrar menos información |
RAPID WARMING OF THE OCEAN AROUND SOUTH GEORGIA,SOUTHERN OCEAN, DURING THE 20TH CENTURY: FORCINGS, CHARACTERISTICS AND IMPLICATIONS FOR LOWER TROPHIC LEVELS M.J. Whitehouse, M.P. Meredith, P. Rothery, A. Atkinson, P. Ward and R.E. Korb
Resumen:
The Southern Ocean is known to have warmed considerably during the second half of the 20th century but there are few locations with data before the 1950s. In addition, assessments of change in this region are hampered by the strong seasonal bias in sampling, with the vast majority of data collected during the austral summer. However, oceanographic measurements near South Georgia span most of Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
(Deep-Sea Res., in press)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/P04 - Abstract Mostrar menos información |
OCEANIC CIRCUMPOLAR HABITATS OF ANTARCTIC KRILL A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming
Resumen:
Surveys of Euphausia superba often target localised shelves and ice edges where their growth rates and predation losses are atypically high. Emphasis on these areas has led to the current view that krill require high food concentrations, with a distribution often linked to shelves. For a wider, circumpolar perspective we compiled all available net-based density data on postlarvae: 8137 mainly Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
(Mar. Ecol. Progr. Ser., 362: 1–23 (2008), doi: 10.3354/meps07498)
Solicitar acceso a documento de reunión
|
|
WG-EMM-08/P04 - Article Mostrar menos información |
Oceanic circumpolar habitats of Antarctic krill A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming |
|
WG-EMM-08/P05 Mostrar menos información |
LIFE HISTORY BUFFERING IN ANTARCTIC MAMMALS AND BIRDS AGAINST CHANGING PATTERNS OF CLIMATE AND ENVIRONMENTAL VARIATION J. Forcada, P.N. Trathan and E.J. Murphy
Resumen:
The consequences of warming for Antarctic long-lived organisms depend on their ability to survive changing patterns of climate and environmental variation. Among birds and mammals of different Antarctic regions, including emperor penguins, snow petrels, southern fulmars, Antarctic fur seals and Weddell seals, we found strong support for selection of life history traits that reduce interannual Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
(Global Change Biology, in press)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/P06 Mostrar menos información |
ENVIRONMENTAL FORCING AND SOUTHERN OCEAN MARINE PREDATOR POPULATIONS: EFFECTS OF CLIMATE CHANGE AND VARIABILITY P.N. Trathan, J. Forcada and E.J. Murphy
Resumen:
The Southern Ocean is a major component within the global ocean and climate system and potentially the location where the most rapid climate change is most likely to happen, particularly in the high-latitude polar regions. In these regions, even small temperature changes can potentially lead to major environmental perturbations. Climate change is likely to be regional and may be expressed in Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
(Phil. Trans. R. Soc. B, 362: 2351–2365 (2007), doi: 10.1098/rstb.2006.1953)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/P07 Mostrar menos información |
ECOLOGICAL REPERCUSSIONS OF HISTORICAL FISH EXTRACTION FROM THE SOUTHERN OCEAN D. Ainley and L. Blight
Resumen:
A major mid-1980s shift in ecological structure of significant portions of the Southern Ocean was partially due to the serial depletion of fish by intensive industrial fishing, rather than solely to climate factors as previously hypothesised. Over a brief period (1969-1973), several finfish stocks were on average reduced to <50%, and finally (mid-1980s) to <20%, of original size. Despite Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
(Fish and Fisheries, in press)
Solicitar acceso a documento de reunión
|
7 |
WG-EMM-08/P08 Mostrar menos información |
THE SUMMERTIME PLANKTON COMMUNITY AT SOUTH GEORGIA (SOUTHERN OCEAN): COMPARING THE HISTORICAL (1926/27) AND MODERN (POST 1995) RECORDS P. Ward, M.P. Meredith, M.J. Whitehouse and P. Rothery |
5.2 |
WG-EMM-08/P09 Mostrar menos información |
Histopathology of Antarctic krill, Euphausia superba, bearing black spots S. Miwa, T. Kamaishi, T. Matsuyama, T. Hayashi and M. Naganobu
Resumen:
Small black spots have been noticed on the cephalothorax of Antarctic krill, Euphausia superba, since January, 2001. To study the nature of the black spots, the krill were sampled in the winter of 2003, 2006, and 2007 in the South Georgia region, the Antarctic Ocean. Histological observations revealed that the black spots were melanized nodules that were composed of hemocytes surrounding Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
(J. Invertebr. Pathol. (2008), doi:10.1016/j.jip.2008.04.004, in press)
Solicitar acceso a documento de reunión
|
4.3 |
WG-EMM-08/P10 Mostrar menos información |
Horizontal and vertical distribution and demography of euphausiids in the Ross Sea and its adjacent waters in 2004/2005 K. Taki, T. Yabuki, Y. Noiri, T. Hayashi and M. Naganobu
Resumen:
The horizontal and vertical distribution and population structure of euphausiids in the Ross Sea and its adjacent waters were investigated during the summers of 2004/2005 using stratified towed samples. Nine species of euphausiids occurred in the survey area. Among them, Euphausia triacantha was dominant in biomass north of the southern boundary of the Antarctic circumpolar current (SB). Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
(Polar Biol. (2008), doi: 10.1007/s00300-008-0472-6, in press)
Solicitar acceso a documento de reunión
|
5.2 |
WG-EMM-08/P11 Mostrar menos información |
THE POWER OF ECOSYSTEM MONITORING K. Reid, J.P. Croxall and E.J. Murphy
Resumen:
1. Implementing an ecosystem approach to fisheries management requires an effective ecosystem monitoring programme, the utility of which depends upon its ability (measured by the statistical power) to detect effects that trigger management action. 2. Using data from a long-term ecosystem monitoring programme of the predators of Antarctic krill Euphausia superba at South Georgia together with a Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
(Aquat. Conserv., 17 (S1): 79–92 (2008), doi: 10.1002/aqc.909)
Solicitar acceso a documento de reunión
|
6.3 |
WG-EMM-08/P12 Mostrar menos información |
INTERANNUAL SPATIAL VARIABILITY OF KRILL (EUPHAUSIA SUPERBA) INFLUENCES SEABIRD FORAGING BEHAVIOR NEAR ELEPHANT ISLAND, ANTARCTICA J.A. Santora, C.S. Reiss, A.M. Cossio and R.R. Veit
Resumen:
We investigate the influence of krill (principally Euphausia superba) patchiness on the foraging distributions of seabirds to understand how variation in krill influences patch dynamics between krill and birds. At sea surveys were conducted near Elephant Island, Antarctica for three years (2004-2006) during the annual U.S. Antarctic Marine Living Resources (AMLR) program. Standardized strip- Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
(Fish. Oceanogr., in press)
Solicitar acceso a documento de reunión
|
5.2 |