Search results
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An Apparent Decrease in the Prevalence of “Ross Sea Killer Whales” in the Southern Ross Sea
Abstract: Killer whales (Orcinus orca), both ecotype-B and-C, are important to the Ross Sea ... , Antarctic ecosystem; the type-C is referred to as “Ross Sea [RS] killer whale”. Herein, we review data on ... occurrence patterns and diet of RS killer whales, and present new information on numbers observed in the ... southwestern Ross Sea, 2002- 2008. These “resident” whales appear to feed principally on fish, including the ...
Meeting Document : WG-EMM-09/P01 : Author(s): D.G. Ainley, G. Ballard and S. Olmastroni
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Swarm characteristics of Antarctic krill Euphausia superba relative to the proximity of land during summer in the Scotia Sea
Abstract: We studied the relationship between the proximity of land and the distribution and ... swarming characteristics of Antarctic krill across the Scotia Sea in January and February 2003. Krill ... -sectional areas of swarms were significantly larger inshore, with a mean value of 120 m 2 in the 0 to 50 km ... zone compared to <80 m 2 further offshore. The packing concentration of krill within inshore swarms ...
Meeting Document : WG-EMM-10/P09 : Author(s): T. Klevjer, G.A. Tarling and S. Fielding
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The efficacy of video-based electronic monitoring technology for at-sea monitoring of the halibut longline fishery
Abstract: This project involved the large-scale deployment of electronic monitoring (EM) systems ... on the 2002 British Columbia halibut longline fishery to evaluate the feasibility of EM as an ... groupings, and the 15 fish most abundant species accounted for 98% of the catch. Data from fishing trips ... %, and individual identifications by hook agreed in over 90% of the catch records. EM reliably (i.e ...
Meeting Document : WG-FSA-03/100
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Seabird mortality in the longline fishery for Patagonian toothfish at the Prince Edward Islands: 1996–1997
Abstract: Longline fishing for Patagonian toothfish Dissostichus eleginoides commenced at the ... . This paper summarizes the mortality of seabirds associated with this fishery during the year July 1996 ... fishing trips. Some 3.2 million hooks were observed during the period November-June, representing 84 % of ... the estimated 3.8 million hooks set by permit-holders in the South African Exclusive Economic Zone ...
Meeting Document : WG-FSA-97/51 : Author(s): Boix-Hinzen, C., Enticott, J.W., Ryan, P.G., Wanless, R., Purves, M., Nel, D.C.
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Tracking Antarctica, A New WWF report on the state of Antarctica and the Southern Ocean
identify the pressures and threats to the planet’s largest wilderness. WWF’s new biennial report- Tracking ... Antarctica- provides a scientific update on the state of Antarctica and the Southern Ocean. It identifies ... ways to respond to the challenges based on the latest scientific evidence to ensure the wonders of the ... Antarctic are preserved for generations to come. The report will be available publicly as a digital ...
Meeting Document : SC-CAMLR-XXXV/BG/30 : Author(s): Submitted by ASOC
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Some aspects of the relation between Antarctic krill abundance and CPUE measures in the Japanese krill fishery
Paper Title: Some aspects of the relation between Antarctic krill abundance and CPUE measures in ... the Japanese krill fishery Abstract / Description: The history of the Japanese krill fishery is ... reviewed briefly. Important aspects of the fishing operation are the constraints imposed by processing rate ... limitations on the vessels, and product quality considerations- in particular the increasing tendency to avoid ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 109–125 : Author(s): Butterworth, D.S.
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Preliminary assessment of mackerel icefish, Champsocephalus gunnari, in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey in May–June 2006 using the Generalised Yield Model
58.5.2 in the vicinity of Heard Island in May-June 2006 to provide the information for an assessment of ... short-term annual yield in the 2006/2007 CCAMLR season. This paper provides a preliminary assessment of ... yield for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods. A lack of ... evidence of strong year classes recruiting to the population has led to a significant decrease in the ...
Meeting Document : WG-FSA-06/43 Rev. 1 : Author(s): D.C. Welsford (Australia)
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Catch and effort data for the longline fishery in Subarea 48.3 – comparison of data reported to CCAMLR and data acquired by the UK between 1994 and 1996
Abstract: Haul by haul data acquired by the UK from longline fishing for Dissostichus eleginoides ... to be missing from the CCAMLR database. One instance was identified of multiple hauls being submitted ... as single records. A number of hauls yielding zero catches present in the data acquired by the UK ... have not been reported to CCAMLR. In 1996 less than 10% of the hauls showed large discrepancies between ...
Meeting Document : WG-FSA-97/37 : Author(s): Parkes, G.B., Pearce, J., Agnew, D.J.
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Winter gut contents of the Antarctic krill (Euphausia superba Dana) collected in the South Georgia area
Abstract: Foregut contents of the Antarctic krill Euphausia superba Dana which were collected in ... the South Georgia area in austral winter, 12 July ~ 4 August 1992 were observed. A total of 130 ... were examined in this study. The foregut contents of the krill consisted of various fragments of ... crustacean zooplankton in 77 individuals out of 130 examined. Among the fragments a portion of the pereiopods ...
Meeting Document : WG-KRILL-93/30 : Author(s): Y. Nishino and A. Kawamura (Japan)
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How precautionary is the policy governing the Ross Sea Antarctic toothfish (Dissostichus mawsoni) fishery?
Abstract: This article reviews the adequacy of data and models currently being used to estimate ... the present and future population sizes of the Antarctic toothfish (Dissostichus mawsoni Norman) in ... the Ross Sea regional ecosystem. It argues that the current tagging program is unlikely to provide an ... accurate picture of total population size, and that estimates of both the pre-exploitation spawning stock ...
Meeting Document : WG-FSA-13/P02 : Author(s): P.A. Abrams