Spatial pattern of major by-catch fishes at Subarea 48.6 during 2012/13–2016/17

This paper represents the by-catch analysis results of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) at Subarea 48.6 by Japan and South Africa. The data set, C2 and scientific observer data, was provided by the CCAMLR Secretariat on the 3th August, 2018. In this paper, the C2 data from 2012/2013 to 2016/2017 fishing seasons was used for the analysis because scientific observers have ceased recording number and weight of by-catch fish with some lines. 

ANT (Antimora rostrata), GRV (Macrourus spp.), ICX (Channichthyidae spp.), and MRL (Muraenolepis spp.) are common by-catch species. These common by-catch species indicate small temporal change of their by-catch pattern.