Search results
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Do Adélie penguin fledgling weights provide an index of prey availability?
We examine fledgling weights measured over 11 years at Béchervaise Island in relation to two ... Abstract: We examine fledgling weights measured over 11 years at Béchervaise Island in relation ... to two assumed proxies of prey availability: breeding success and foraging trip duration. Concordance ... between the two proxies was apparent when considering guard stage foraging trip durations ...
Meeting Document : WG-EMM-05/21 : Author(s): L. Emmerson, C. Southwell and J. Clarke (Australia)
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Adélie penguins foraging behaviour and krill abundance along the Wilkes and Adélie Land coasts, Antarctica
at Shirley Island (SI) near Casey Station and at Petrel Island (PI) at Dumont D039;Urville during the 1995 ... Division 58.4.1 (south of 55 °S, 80- 150 ° E) to determine the extent of overlap between penguin foraging ... (south of 55 °S, 80 - 150 ° E) to determine the extent of overlap between penguin foraging areas ... (20 - 40 %), and amphipods (< 3 %). The study took place in parallel to a ship-based krill survey ...
Meeting Document : WG-EMM-97/64 : Author(s): Kerry, K., Rodary, D., Bost, C., Lemaho, Y., Wienecke, B.C., Thomson, R., Lawless, R., Pauly, T., Robertson, G.
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Age determination of Antarctic krill using size, fluorescence, and image analysis techniques
methods indicate 6 year classes for adult krill. Correspondence between the ages determined by the two ... techniques is generally within one year. The animals were also analyzed by a computerized image analysis ... indicate 6 year classes for adult krill. Correspondence between the ages determined by the two techniques ... is generally within one year. The animals were also analyzed by a computerized image analysis system, which ...
Meeting Document : SC-CAMLR-VI/BG/48 : Author(s): M.S. Berman, A.L. McVey and G. Ettershank (USA)
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Entanglement of Antarctic fur seals in man-made debris at Bird Island, South Georgia
compared to 30), it was substantially lower than during the 1988/89 and 1989/90 seasons (190 and 156 ... of entanglement during the pup-rearing period was slightly higher than in the previous year (48 compared to 30 ... the incidence of entanglement during the pup-rearing period was slightly higher than in the previous year (48 ... years. Author(s): Delegation of United Kingdom Title: Entanglement of Antarctic fur seals in man-made ...
Meeting Document : SC-CAMLR-XI/BG/09 : Author(s): Delegation of United Kingdom
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Report on the effectiveness of integrated weight (fast sinking) longlines in reducing the mortality of white-chinned petrels and sooty shearwaters in autoline longline fisheries
lines compared to one white-chinned petrel on IW; the reduction in mortality was 98.7% (CL95% = 99.8 ... lines compared to one white-chinned petrel on IW; the reduction in mortality was 98.7% (CL95% = 99.8 ... ) and sooty shearwaters (Puffinus griseus) killed by unweighted longlines (UW; mean sink rate to 20 m depth ... or lines by counting dead birds during line hauling. In 2002 80 white-chinned petrels were caught on UW ...
Meeting Document : WG-FSA-04/72 : Author(s): G. Robertson (Australia), N. Smith (New Zealand), B. Wienecke and S. Candy (Australia)
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Preliminary evaluation of two feedback management strategies for the krill fishery in Subareas 48.1–48.3
for the krill fishery will compromise the Commission’s ability to achieve the objectives in Article II ... ) every five years based on results of monitoring either (1) the density of krill (g·m ‑2) or (2) changes ... SSMUs in proportion to catches taken during 2009-2016, we found that the two feedback management ... strategies assessed. Our results suggest it may be useful to consider alternatives to the two FBM strategies ...
Meeting Document : SC-CAMLR-XXXVII/BG/12 : Author(s): Delegation of the USA
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Cruise report of multidisciplinary ecosystem survey in the eastern Indian sector of the Antarctic (CCAMLR Division 58.4.1) with a focus on Antarctic krill during 2018/19 season by the Japanese survey vessel, Kaiyo-maru
(CCAMLR Division 58.4.1) with a focus on Antarctic krill was carried out by Kaiyo-maru during the 2018/19 ... season for 53 days. The survey consisted of 2 survey periods: Leg 1 (from 15 December 2018 to January ... edge on 80°E and ended at ice edge on 120°19.0’E. Leg 2 was commenced at 63°00.0’S on 150°00.0 ... ’E and ended at ice edge on 125°50.0’E. Two small scale oceanographic surveys (off the Mertz Glacier Tongue ...
Meeting Document : WG-EMM-2019/42 : Author(s): H. Murase, K. Abe, R. Matsukura, H. Sasaki, R. Driscoll, S. Driscoll, F. Schaafsma, M. van Regteren, Q. Yang, H. Ohshima, K. Ohshima, R. Sugioka, J. Tong, N. Yamamoto, H. Doiguchi, E. Briggs, K. Doi, D. Hirano, K. Katsumata, M. Kiuchi, Y. Ko, D. Nomura, M. Orui, H. Sato, S. Toyoda, K. Yamazaki, T. Ishihara, K. Hamabe, S. Kumagai, T. Miyashita, N. Yamada, Y. Koyama and H. Sasaki
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Revised proposal for the ongoing research plan on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21)
-FSA-16/33 Rev. 1) for a period of 5 years. The proposal submitted here has been substantially revised ... ”) are addressed in two documents submitted at WG-SAM-19. We updated milestone tables of objective ... on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21) Approval: Approved ... /33 Rev. 1) for a period of 5 years. The proposal submitted here has been substantially revised ...
Meeting Document : WG-FSA-2019/64 : Author(s): Delegations of Japan and France
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Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic peninsula region
of 0.88 to 0.94 for different years. The exchange rate of water masses and krill biomass within one summer ... . The exchange rate of water masses and krill biomass within one summer season was roughly estimated as 2 times ... a rate of Z=0.88 (1989/90) and Z=0.96 (1987/88). Production was estimated and resulted a P/B ratio ... production) of 4.3 and 5.0*106 tonnes passing through the survey area during the respective summer. Author ...
Meeting Document : WG-KRILL-91/15 : Author(s): Delegation of Germany
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Revised proposal for the ongoing research plan on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21)
, maturity ogive, ALK) using >2000 age readings and incorporated estimations of depredation rate and IUU ... parameters (growth curve, maturity ogive, ALK) using >2000 age readings and incorporated estimations ... -FSA-16/33 Rev. 1) for a period of 5 years. The proposal submitted here has been substantially revised ... ”) are addressed in two documents submitted at WG-SAM-19. We updated toothfish biological parameters (growth curve ...
Meeting Document : WG-SAM-2019/08 : Author(s): Delegations of Japan and France