Search results
-
Comparison of the catches and biological characteristics of Dissostichus mawsoni in Subarea 88.1 in seasons of 2002/03 and 2003/04
analysis of data collected relates to catch composition, effort, CPUE, and biological characteristics in ... different SSRU, month and depth of sets longlines. The comparison of these resultants showed that in the ... general fishery effort (quantity of sets and hooks) in those two seasons were similar (233 sets and 1,55 ... mln. hooks in 2002/03, and 222 sets and 1,79 mln. hooks in 2003/04). But the total catch of D.mawsoni ...
Meeting Document : WG-FSA-04/84 Rev. 1 : Author(s): K.V. Shust, N.V. Kokorin and A.F. Petrov (Russia)
-
Reports on abundance and biological information of toothfish in Division 58.4.4a & b by Shinsei Maru No. 3 in 2012/13 season
information of toothfish in SSRUs C and D of Division 58.4.4a & b (Ob Lena Banks) from April 25 to May 22 ... , 2013. A total of 64 research hauls using normal trotline system were made in SSRUs C and D. Total catch ... of Dissostichus eleginoides (excluding those tagged and released) was 31.1 tonnes in the survey area ... from 64 longline sets. Mean CPUEs in terms of weight of D. eleginoides was 70.6 kg / km (CV = 79.1 ...
Meeting Document : WG-SAM-13/20 : Author(s): K. Taki, T. Ichii, T. Iwami and M. Kiyota (Japan)
-
Temporal changes in sighting density indices of baleen whales in CCAMLR Subareas 48.1 and 48.2 based on three circumpolar sighting surveys
Abstract: 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 ...
Meeting Document : WG-EMM-16/26 : Author(s): L.A. Pastene and T. Hakamada
-
Research plan for toothfish in Division 58.4.4 b by Shinsei maru No. 3 in 2015/16
Abstract: In this document, we revise stock status assessments of D. eleginoides in research ... results using CASAL models in research block 58.4.4b_1 are described in a separated document. The ... estimated stock size in block 58.4.4b_1 was 597, 336 and 553 tonnes in CPUE analogy method, Petersen method ... and CASAL OB_1b model (vulnerable biomass in 2014), respectively. The stock sizes of D. eleginoides in ...
Meeting Document : WG-SAM-15/13 : Author(s): Delegation of Japan
-
VARIABILITY IN KRILL BIOMASS LINKS HARVESTING AND CLIMATE WARMING TO PENGUIN POPULATION CHANGES IN ANTARCTICA
areas on the planet, with 5–6 °C increases in mean winter air temperatures and associated decreases in ... . One hypothesis guiding ecological interpretations of changes in top predator populations in this ... region, the “sea-ice hypothesis,” proposes that reductions in winter sea ice have led directly to ... declines in “ice-loving” species by decreasing their winter habitat, while populations of “ice-avoiding ...
Meeting Document : WG-EMM-11/P1 : Author(s): W.Z. Trivelpiece, J.T. Hinke, A.K. Miller, C.S. Reiss, S.G. Trivelpiece and G.M. Watters
-
Natural fluctuations in the abundance of krill with due regard to global climate changes in the southern hemisphere: forecasting possibilities
Abstract: The eco systematic studies in biology and hydrology conducted in the Atlantic sector of ... the South Ocean in recent years made it possible for scientists to establish a rather clear ... ;success" in the reproduction of krill (Euphausia superba) and salp (Salpa tompsoni) (SC-CAMLR-XVI4 ... al., 1997) and other researches in the Antarctic Peninsula Subarea 48.1 showed good correlation ...
Meeting Document : WG-EMM-98/52 : Author(s): K. Shust (Russia)
-
Fisheries in the Southern Ocean – an ecosystem approach. Trans. Roy. Soc. Lond. (in press)
extended to the application of a precautionary approach in the late 1980’s. In our review we deal primarily ... management of the living resources of the Southern Ocean. To assist the Commission in meeting objectives, as ... set out in Article II, 3, the Scientific Committee established the CCAMLR Ecosystem Monitoring Program ... albatrosses, penguins, petrels, fur seals. Fisheries in the Southern Ocean followed the fate of other ...
Meeting Document : SC-CAMLR-XXIV/P01 : Author(s): Kock, K.-H., K. Reid, J. Croxall and S. Nicol
-
An 8-year cycle in krill biomass density inferred from acoustic surveys conducted in the vicinity of the South Shetland Islands during the austral summers of 1991/1992 through 2001/2002
Abstract: Data from single and multi-frequency active acoustic surveys conducted annually in the ... -seasonal variations in krill biomass density and dispersion were derived from the re-processed data set for ... surveys conducted in the austral summers of 1991/1992 through 2001/2002. Estimated biomass density ranged ... from 1 to 60 g m–2, decreasing from mid-range levels in 1991/1992 to a minimum in 1992/1993–1993/1994 ...
Meeting Document : WG-EMM-03/6 : Author(s): R.P. Hewitt, D.A. Demer and J.H. Emery (USA)
-
Reports on abundance and biological information of toothfish in Division 58.4.4 a & b by Shinsei maru No. 3 in 2013/14 season
information of toothfish in the research blocks 58.4.4b_1 (SSRU 58.4.4C) and 58.4.4b_2 (SSRU 58.4.4D) of ... trotline system were made in the blocks. Total catch of Dissostichus eleginoides (excluding those tagged ... and released) was 26.6 tonnes in the survey area. Mean CPUEs in terms of weight of D. eleginoides was ... 32.9 kg / km (CV = 11.3%) and 38.3 kg / km (CV = 13.6%) in the blocks 58.4.4b_1 and 58.4.4b_2 ...
Meeting Document : WG-SAM-15/14 : Author(s): Delegation of Japan
-
Research plan for toothfish in Division 58.4.4b by Shinsei maru No. 3 in 2014/15
Abstract: In this document, we revise stock status assessments of D. eleginoides in research ... . Detailed results using CASAL models in research block C are described in a separated document. The Shinsei ... maru No. 3 will conduct the research in June for the current (2013/14) season, thus we would submit ... updated data to the next WG-FSA meeting. The estimated stock size in block C was 753, 428 and 667 tonnes ...
Meeting Document : WG-SAM-14/14 : Author(s): Delegation of Japan