Search results
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Estimation of the incidental capture of seabird species in commercial fisheries in New Zealand waters, 2000/01
novaezelandiae) trawl fisheries accounted for 94% of the 701 seabird captures in observed trawl fisheries ... . Observed incident rates in longline fisheries were highest in the ling longline fishery: 24% of observed ... in the trawl fisheries: 8% of observed tows in the squid fishery, 4% in hoki, barracouta (Thyrsites ... the main fisheries with observed seabird captures: for ling longline fisheries, mean catch rates ...
Meeting Document : WG-FSA-04/55 : Author(s): S.J. Baird (New Zealand)
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A comparison of acoustic targets at South Georgia and the South Orkney Islands during a season of profound krill scarcity
Abstract: Dual frequency (38 and 120 kHz) acoustic surveys of shelf-break regions in the vicinity ... of Willis Islands, South Georgia and Coronation Island, South Orkneys, both in the Atlantic sector of ... the Southern Ocean, were carried out from RRS lames Clark Ross during January 1994. Difference in ... signal strength between the two frequencies (δMVBS = MVBS 120 kHz- MVBS 38 kHz) was used to partition ...
Meeting Document : WG-EMM-95/75 : Author(s): Watkins, J.L., Brierley, A.S.
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A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
the Ross Sea, Antarctica. Biological data, including fish length, weight, sex, gonad maturity, liver ... von Bertalanffy growth parameters. The species is relatively slow-growing with a moderate longevity ... ; the maximum estimated age was 14.3 years. Von Bertalanffy parameters derived for both sexes combined ... are: L, 22.1 cm SL; K, 0.167 y-1; t 0,-0.4 years. Parameter estimates were also derived for the sexes ...
Meeting Document : WG-FSA-10/20 : Author(s): C.P. Sutton and P.L. Horn (New Zealand)
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Impacts of rising sea temperature on krill increase risks for predators in the Scotia Sea
Abstract: Climate change is a threat to marine ecosystems and the services they provide, and ... reducing fishing pressure is one option for mitigating the overall consequences for marine biota. We used a ... minimally realistic ecosystem model to examine how projected effects of ocean warming on the growth of ... , penguins, seals, and fish) in the Scotia Sea. We also investigated the potential to mitigate depletion risk ...
Meeting Document : WG-EMM-18/P02 : Author(s): E.S. Klein, S.L. Hill, J.T. Hinke, T. Phillips and G.M. Watters
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Draft proposal for multi-Member research on the Dissostichus mawsoni exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) from 2018/19 to 2021/22
rules remain to be determined for these Divisions. WG-FSA-16/29 outlined the first multi-member ... toothfish exploratory fishery research plan up to 2017/18 for East Antarctica, which the Scientific ... Committee agreed was appropriate to achieve the research objectives (SC-CAMLR-XXXV, para. 3.244). Subsequent ... to the identification of vulnerable marine ecosystem (VME) indicator species (Maschette et al. 2017 ...
Meeting Document : WG-SAM-18/17 : Author(s): Delegations of Australia, France, Japan, Republic of Korea and Spain
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Spatial patterns of temporal relationships in the Southern Ocean
Abstract: Phytoplankton production during the austral summer in the Southern Ocean is known to be ... modelled variables and show that this covariance in time between the mixed layer depth (MLD), sea surface ... . Statistically significant spatial patterns in the covariance between MLD, SST and Chl-a show that the physical ... factors controlling phytoplankton production in the Southern Ocean change in a predictable manner. Well ...
Meeting Document : WS-BSO-07/5 : Author(s): M. Kahru and B.G. Mitchell (USA)
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A case of giant squid attack on Antarctic toothfish Dissostichus mawsoni Norman, 1937 (Perciformes, Nototheniidae) caught on bottom-set longline in the Ross Sea
Abstract: In the beginning of February 2005, during the hauling of bottom-set longline in the ... Ross Sea (East Antarctic) from the depth of 1480 m to the surface a very large squid taken a large ... by a longline hook, was hauled up to the board of longliner VOLNA. Squid was very active and did not ... aboard but it was registered with the use of photo- and video cameras. This allowed to determine its ...
Meeting Document : WG-FSA-06/P3 : Author(s): Petrov, A.F.
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An assessment of the conservation status of albatrosses
Abstract: The conservation status of albatrosses has been re-evaluated using the recent suggested ... taxonomic revisions of albatrosses and the new IUCN criteria for identification of threatened taxa. The ... critically reviewed and endorsed by Birdlife International. This evaluation reveals albatrosses to have the ... the 24 albatross species recognized in the new taxonomy, two species (Amsterdam Albatross and Chatham ...
Meeting Document : WG-FSA-97/59 : Author(s): Croxall, J.P., Gales, R.
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Krill catches and consumption by land-based predators in relation to distance from colonies of penguins and seals in the South Shetlands and South Orkneys
around the coasts of the South Shetland and South Orkney Islands. Krill catches in these zones are shown ... , probably as a result of oceanographic conditions. About 50% of the catch in Subarea 48.1 from December to ... March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 and 1988 ... 75% of the catch in Subarea 48.2 between December and March was taken within 80 km of colonies in the ...
Meeting Document : SC-CAMLR-X/BG/07 : Author(s): Secretariat
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Krill catches and consumption by land-based predators in relation to distance from colonies of penguins and seals in the South Shetlands and South Orkneys, 1987-1990
around the coasts of the South Shetland and South Orkney islands. Krill catches in these zones are shown ... result of oceanographic conditions. About 50% of the catch in 48.1 from December to March was taken ... within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 and 1988 75% of the catch ... in 48.2 between December and March was taken within 80km of colonies in the South Orkneys. Estimates ...
Meeting Document : WG-CEMP-91/25 : Author(s): D.J. Agnew (Secretariat)