Search results
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Variability in krill length distribution in 48.1 derived from data collected by scientific observers
Abstract: Information on the length distribution of krill in the catch, and the spatial and ... temporal patterns of krill length in the population is essential to assess krill population status and ... dynamics, and the impacts of a fishery on the stocks. Here, we use generalised additive models (GAM) and ... generalised additive mixed models (GAMM) to evaluate the spatial and temporal patterns of length in Antarctic ...
Meeting Document : WG-EMM-15/16 : Author(s): P. Ziegler, S. Kawaguchi D. Welsford and A. Constable (Australia)
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The toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2002/03: New Zealand vessel summary
six seasons in Subarea 88.1 and for two seasons in Subarea 88.2. A large amount of data on both ... toothfish and associated bycatch from the fishing operations has been collected. The purpose of this report ... is to present the analysis of data collected in the toothfish fishery for the 2003 season (this is ... part of the 2002–03 CCAMLR split fishing year), and to compare these results with previous years. Note ...
Meeting Document : WG-FSA-03/44 : Author(s): M.L. Stevenson, S.M. Hanchet and P.L. Horn (New Zealand)
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Expert Workshop on Pelagic Spatial Planning for the eastern subantarctic region (Domains 4, 5 and 6)
developed a scientific work program that will result in both pelagic abiotic and biotic classifications of ... the Planning Domains using geographic, biological and oceanographic features. Distributions of ... showing latitudinal patterns of communities for the pelagic species. The importance of frontal zones such ... latitudinal zonation of bioregions (based on abiotic and chlorophyll clustering) according to frontal zones ...
Meeting Document : SC-CAMLR-38/BG/29 : Author(s): A.B. Makhado, A. Lowther, P. Koubbi, I. Ansorge, C. Brooks, C. Cotté, R. Crawford, S. Dlulisa, F. d’Ovidio, S. Fawcet, D. Freeman, S. Grant, J. Huggett, M. Hindell, P.A. Hulley, S. Kirkman, T. Lamont, M. Lombard, M.J. Masothla, M.-A. Lea, W.C. Oosthuizen, F. Orgeret, R. Reisinger, T. Samaai, S. Sergi, K. Swadling, S. Somhlaba, A. Van de Putte, C. Von de Meden and D. Yemane
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Report on the CCAMLR marine debris monitoring program
. Non-fishing items such as plastics, packaging materials and wood remain the most common type of debris ... bands found at King George Island. Overall, the amount of debris in colonies of grey-headed albatrosses ... category of items found being plastics. The amount of fishing related items (fishing lines and hooks) found ... number of marine mammal entanglements has remained relatively constant at Bird Island but continues to ...
Meeting Document : WG-FSA-14/68 : Author(s): Secretariat
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Scotia Sea Pygoscelid Penguin Tracking and Habitat Analysis Workshop
Abstract: During WG-EMM-14, it was noted that characterisation of overlap between land-breeding ... existing tracking data and developing habitat models that predict foraging habitats as functions of ... environmental variables. Consequently, in May 2015, an expert meeting was convened to consider the utility of ... considered that such models would be of critical value in the development of feedback management approaches ...
Meeting Document : WG-EMM-15/09 : Author(s): P.N. Trathan (United Kingdom), J.T. Hinke (USA) and B. Lascelles (BirdLife International)
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Operational interactions between cetaceans and the Patagonian toothfish (Dissostichus eleginoides) industrial fishery off Southern Chile
higher frequency than any other species during fishing operations. In 60% of all monitored sets sperm ... whales were present, while orcas (Orcinus orca) were found in only 10% of these. When cetaceans were ... present, evidence of damaged catch included lips, heads and trunks and a total of 121 lips, 16 heads and 3 ... trunks were recovered. Mean rate of predation was 3% (± 2% CI 95%; n=180 sets) and ranged between 0% and ...
Meeting Document : WG-FSA-03/95 : Author(s): R. Hucke-Gaete, C.A. Moreno and J.A. Arata (Chile)
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Beach debris survey – Signy Island, South Orkney Islands 2002
categories. A total of 39 items weighing 25.47kg were collected. The number of items found was the largest ... since 1999/00 and the total mass of the waste recovered was the highest recorded since 1994/95 (an ... increase of 59% by number and 97% by mass since 2000/01). There was an increase in the number of plastic ... % of all items recorded, followed by wood (23%). Classifying the waste by source revealed that almost ...
Meeting Document : SC-CAMLR-XXI/BG/05 : Author(s): Delegation of the United Kingdom
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CEMP INDICES: 2009 UPDATE
indicator species collected by standard methods in the three Integrated Study Regions of the Convention Area ... . Each year the Secretariat updates the standardised index values and provides a summary of trends and ... and 12 CEMP parameters in 2008/09. This continues a decreasing trend in the amounts of data being ... submitted to the CCAMLR database. No data was received from CEMP sites in Area 88. Since 1989/90, a total of ...
Meeting Document : WG-EMM-09/05 : Author(s): Secretariat
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Algunos aspectos biologicos relevantes a la explotacion de la merluza negra (Dissostichus eleginoides Smitt, 1898) en la zona economica exclusiva argentina y sector oceanico adyacente
Abstract: This work aims to the study of the distribution, size structure by depth, first ... maturity stage, weight/length, and length perimeter curve, of Patagonian toothfish (Dissostichus ... eleginoides) in the Argentine Sea, and atempts some explanation by a trophic analysis of such distribution ... . The distribution of Patagonian toothfish extends between of 36°30'S and 55°S from 80 to 2500 m ...
Meeting Document : WG-FSA-97/49 : Author(s): Almeyda, S.M., Prenski, L.B.
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Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
Abstract: The waters in the vicinity of the South Shetland Islands and Elephant Island were ... surveyed to investigate mechanisms for the formation of krill concentrations and to estimate acoustic ... biomass of krill in the 1990/91 austral summer. Main krill concentrations occurred in the shelf waters ... north of the islands, as usual. Tracks of drifting buoys (with curtain drogues at 30 m depth where krill ...
Meeting Document : WG-KRILL-91/22 : Author(s): Delegation of Japan