Search results
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Distribution, morphology, growth, reproduction, diet and trophic position of two species of grenadier (Macrourus whitsoni and M. caml) in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2)
Macrourus whitsoni and M. caml in the Ross Sea region of the Southern Ocean. Fish were caught by New Zealand ... vessels in the fishery for Antarctic toothfish (Dissostichus mawsoni) between December 2011 and February ... 2012 from CCAMLR subareas 88.1B, 88.1C, 88.1G, 88.1H, 88.1K and 88.2H. In total, 227 M. whitsoni and ... . whitsoni examined was 65 cm TL and 1.3 kg. The two main morphological characters (number of rays in the ...
Meeting Document : WG-FSA-12/54 Rev. 1 : Author(s): M.H. Pinkerton, P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown (New Zealand)
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Surface water masses, primary production, krill distribution and predator foraging in the vicinity of Elephant Island during the 1989-90 austral summer
size mode of small, reproductively mature females and immature males was sampled in January and ... in February. As a consequence, overall mean size increased from 41.8 mm in January to 44.3 mm in ... ). Examination of interrelations between the various physical and biological components measured in the study ... area led to the following tentative observations: 1) Five water mass types were classified in the study ...
Meeting Document : WG-CEMP-90/11 : Author(s): A.F. Amos, J.L. Bengtson, O. Holm-Hansen, V.J. Loeb, M.C. Macaulay and J.H. Wormuth (USA)
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Ecological implications of body composition and thermal capabilities in young Antarctic fur seals (Arctocephalus gazella)
Abstract: In comparison to other homeotherms, young recently weaned marine mammals in high ... the role of lipid stores in a high-latitude pinniped, the body composition and thermoregulatory ... post-weaning fasting capability in free-ranging, young fur seals. Resting metabolic rates were ... different for pups and yearlings measured in 0.6 ºC water, 10.3 ºC water, and ambient air; however, mass and ...
Meeting Document : WG-EMM-04/69 : Author(s): M.R. Rutishauser, D.P. Costa, M.E. Goebel and T.M. Williams (USA)
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Interannual variability of the South Georgia marine ecosystem: biological and physical sources of variation in the abundance of krill
the relative roles of biological and physical processes in generating these fluctuations are unknown ... krill (Euphausia superba) in the South Georgia area, and that the variation affects much of the ... . Fluctuations in year class success in parts, or all, of the population across the Scotia Sea, can generate ... large changes in the available biomass. The ocean transport pathways maintain the large scale ecosystem ...
Meeting Document : WS-AREA 48-98/8 : Author(s): E.J. Murphy, J.L. Watkins, K. Reid, P.N. Trathan, I. Everson, J.P. Croxall, J. Priddle, M.A. Brandon, A.S. Brierley (UK) and E. Hofman (USA)
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Connectivity and population structure in Pleuragramma antarcticum along the west Antarctic Peninsula
Abstract: We asked whether silverfish (Pleuragramma antarcticum) are distributed in independent ... , reduction in sea-ice along the WAP may lead to extinction of local populations through drastic mortality of ... in areas subsidized by migration may be more robust to declining sea ice coverage. We provide ... simulations using a circulation model. Differences in length distributions and maturity suggested two discrete ...
Meeting Document : WG-FSA-10/16 : Author(s): J. Ashford, J. Ferguson, A. Piñones, J. Torres and W. Fraser
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A review of by-catch in CCAMLR exploratory toothfish fisheries
thorough and effective management of Southern Ocean toothfish fisheries, especially in eliminating ... caught as bycatch annually. Fish bycatch mitigation controls in toothfish fisheries have seen a ... thoroughly investigated. This study explores trends in fish bycatch of exploratory fisheries for toothfish ... measures. We found a significant reduction in bycatch landings by weight and number of individuals across ...
Meeting Document : WG-FSA-14/16 : Author(s): E. McClure, K. Reid (Secretariat)
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Depth and temperature preferences of Antarctica toothfish (Dissostichus mawsoni) from a pilot popup satellite archival tag study in the Mawson Sea
mawsoni) released in the Mawson Sea were analyzed. Toothfish were at liberty for 36-366 days, and yielding ... appeared to have remained in the Mawson Sea area for the majority of time at liberty. The recaptured ... individual exhibited distinctive vertical ascents only in September, during the presumed spawning season, and ... was estimated to be near shore in the Mawson Sea. These ascents could represent characteristic ...
Meeting Document : WG-FSA-18/22 : Author(s): C.H. Lam, S.-G. Choi, E. Kim, S. Chung, J. Lee and D.H. An
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Revised growth and length-weight parameters for Antarctic toothfish in the Ross Sea region (881 & 882AB)
toothfish (Dissostichus mawsoni) in the Ross Sea region (Subareas 88.1 and SSRUs 88.2AB). We present revised ... fishing operations in the Ross Sea region. Estimates of growth and length-weight were similar to those ... between the revised von Bertalanffy and the MLE mean length at age model. In this case, the model ... conclusions were very similar and either of the updated relationships may be adequate parameterisations in the ...
Meeting Document : WG-FSA-2019/11 : Author(s): A. Dunn and S. Parker
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Resource support for conducting scientific programs in the Ross Sea region MPA: comments and proposals
unclear how research catch limits in the MPA should be allocated. The Scientific Committee's current ... recommendations on the allocation of allowable catch for surveys in MPAs from the TAC set for the exploratory ... Olympic fishery outside MPAs in the Ross Sea Region have no scientific justification and do not meet the ... in the MPA, and will limit the exploratory longline fishery outside the MPA which is a data source ...
Meeting Document : SC-CAMLR-38/12 : Author(s): Делегация Российской Федерации
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Identification of squid echoes in the south Atlantic
Abstract: During a research cruise of the British Antarctic Survey ship RRS James Clark Ross in ... February 1996, a substantial number of the ommastrephid squid, Martialia hyadesi, were caught in a pelagic ... trawl, near the Antarctic Polar Frontal Zone in CCAMLR Subarea 48.3. This paper describes acoustic data ... gathered during this haul and a survey of the immediate vicinity, in order to characterise an acoustic ...
Meeting Document : WG-EMM-97/26 : Author(s): Rodhouse, P., Goss, C., Brierley, A., Watkins, J.