Search results
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Trophic niche of the Antarctic toothfish caught in SSRU 88.3 as inferred from fatty acids and stable isotopes
Abstract: To highlight ontogenetic and geographical variability in resource utilization of ... Antarctic toothfish, we investigated neutral fatty acid (NFA) profiles and stable isotopes (SIs) in muscles ... of toothfish and their potential prey (bycatch and stomach contents), captured in fisheries in the ... Small Scale Research Units (SSRUs) 88.3 (the Pacific Ocean sector, POS) in austral summer during 2016 ...
Meeting Document : WG-FSA-18/21 : Author(s): C.-K. Kang, S.-G. Choi, H.Y. Kang, Y.-J. Lee, S. Chung and D.H. An
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Proposal for a skate tagging program in the Ross Sea region to estimate the local biomass trend for starry skates (Amblyraja georgiana)
for skates in the Ross Sea region, we summarise skate catch and mark-recapture data through the 2016 ... biomass. Much of the A. georgiana catch occurs in SSRUs 88.1H and 88.1I in an area remaining open to ... fishing with respect to the Ross Sea region Marine Protected Area. For consistency in comparisons, we use ... in the 2009 and 2010 fishing seasons to estimate local Chapman biomass using CCAMLR procedures for ...
Meeting Document : WG-FSA-18/38 Rev. 1 : Author(s): S. Parker and M. Francis
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Preliminary model of krill fishery behaviour in Subarea 48.1
fishery in Subarea 48.1 and estimates the effort applied and the catch of krill in fine-scale squares ... March, compare favourably with the general distribution of catches in Subarea 48.1. A number of ... the management option of closing the zones around Livingston and Elephant Islands in alternate years ... would result in an average yearly catch similar to that at present, although the catch is much more ...
Meeting Document : WG-KRILL-93/14 : Author(s): D.J. Agnew (Secretariat)
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Declining trend in the abundance of fjord fish of the species Notothenia rossii marmorata and Notothenia gibberifrons observed at two localities of South Shetland Islands
Abstract: A declining trend observed in the abundance of fjord fish of the species Notothenia ... nets at Potter Cove, King George/25 de Mayo I., from 1983 to 1990 and in waters around Half-Moon I ... ., Moon Bay, in 1989. The analysis was based on the proportion of catches of the mentioned species in ... relation to Notothenia neglecta, a species with similar ecological habits in the fjords. Comparison with ...
Meeting Document : WG-FSA-90/14 : Author(s): E. Barrera-Oro and E. Marschoff (Argentina)
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Spatial and seasonal distribution of adult Oithona similis in the Southern Ocean: predictions using boosted regression trees
of the cyclopoid copepod Oithona similis in the Southern Ocean. Nearly 20 000 samples from the ... probability of detection (presence) and relative abundance of adults of this zooplankton species in surface ... ) of adult O. similis between November and March in much of the Southern Ocean. No investigation was ... conditions in a broadly similar way throughout the Southern Ocean. Compared to a compilation of nethaul data ...
Meeting Document : WG-EMM-10/P14 : Author(s): M.H. Pinkerton, A.N.H. Smith, B. Raymond, G.W. Hosie, B. Sharp, J.R. Leathwick and J.M. Bradford-Grieve
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Principles for evaluating data collection plans in data-poor exploratory fisheries
in accordance with the principles set forth in Article II of the Convention. However, several times ... over the last five years the Scientific Committee has noted with concern the lack of progress in ... developing robust assessments of status of Dissostichus spp. in exploratory fisheries. Each additional year ... of fishing increases the risk of over-exploitation of fish stocks. In this paper we articulate a set ...
Meeting Document : WG-SAM-11/08 : Author(s): P.E. Ziegler, D.C. Welsford and A.J. Constable (Australia)
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Flexible foraging strategies of gentoo penguins help buffer the impacts of inter-annual changes in prey availability
Abstract: Gentoo penguins Pygoscelis papua show considerable plasticity in their diet, diving and ... 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 South ... varied over time; different dive depth-distributions were observed in each year. Nonetheless, chick ...
Meeting Document : WG-EMM-08/50 : Author(s): A.K. Miller and W.Z. Trivelpiece (USA)
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on recent survey results
Abstract: The annual Random Stratified Trawl Survey was undertaken in Division 58.5.2 in the ... ’ E using standard CCAMLR methods. A pattern of 5 year classes being present simultaneously in the ... population, which was first detected in 2011, has persisted, however a large cohort of fish, estimated to be ... 2+, dominate the population in both abundance and biomass. A new length weight model is estimated ...
Meeting Document : WG-FSA-12/26 : Author(s): D.C. Welsford (Australia)
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Operational difficulties in exploratory fisheries
Abstract: F/V Shinsei Maru No.3 has been engaged in Exploratory Fisheries since 2003. Furthermore ... the vessel has conducted research activities under CM24-01 in division 58.4.4 since 2008 and provided ... significant scientific information on toothfish. For the rational utilization of toothfish resources in data ... we have exerted as much efforts as possible to complete our research plan. However, in course of ...
Meeting Document : WG-SAM-13/22 : Author(s): N. Miyagawa, J. Okamoto, N. Akimoto and K. Hirose (Japan)
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Progress report of the CEMP Special Fund camera network in Subarea 48.1
Network in Subarea 48.1”. The project was initiated with support from the CEMP Special Fund in 2014/15 ... . The project is now fully operational. In 2016/17 data were recovered from 50 cameras covering 3 ... summaries indicate variation in phenological timing within species across sites with relatively high ... publication is currently in preparation. The cameras in the network remain in deployment and will contribute ...
Meeting Document : WG-EMM-17/16 Rev. 1 : Author(s): J. Hinke, G. Watters, M. Santos, M. Korczak-Abshire, G. Milinevsky, V. Lytvynov, A. Barbosa, C. Southwell and L. Emmerson