Résultats de la recherche
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Demersal longlines with integrated weight: a preliminary assessment of sink rates, fish catch success and operational effects
lines with weigh integrated into the rope fibres. The sink rates to 15 m depth of 9 mm demersal ... longlines with integrated weight (IW) were tested against unweighted longlines and lines with externally ... attached weights (6 kg/49 m) in the New Zealand ling fishery. Longlines with 0 g/m (unweighted), 25 g/m, 50 ... 0.353 m/s, respectively. The longline with externally attached weights sank at 0.32 m/s. IW longlines ...
Meeting Document : WG-FSA-02/22 : Auteur(s): G. Robertson (Australia), M. McNeill, B. King (New Zealand) and R. Kristensen (Norway)
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Observations of Adélie penguins in two seasons with contrasting weather and sea-ice conditions – a brief report
Abstract: The 2002-03 breeding season in comparison with 2000-01 at Edmondson Point was ... colony during December coinciding with hatching and the guard stage. The sea ice in the Ross Sea was held ... parameters A2, A6, A9. Breeding success was reduced to 0.3 chicks creched per nest with eggs. The mean crèche ... date was extended by 4 days, the first incubation shift was significantly longer with respect to 2000 ...
Meeting Document : WG-EMM-03/59 : Auteur(s): S. Olmastroni, F. Pezzo, V. Volpi and S. Focardi (Italy)
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Interaction of sperm whales with bottom longline and the Mammal and Bird Excluding Device (MBED) operation in the Patagonian toothfish (Dissostichus eleginoides) fishery in the southwestern Atlantic
recovered longline; b) presence and number of sperm whales and c) comparative fishing yields with and ... Spanish longline and the Mammals and Birds Excluding Device (MBED). The longline with MBED sinking rate ... 77.4 % of total observed sets and the effective predation was determined in 22.6 % with MBED. Effective ... and buccal parts were observed in 71 % of sets with traditional longline and in 27 % with MBED. The ...
Meeting Document : WG-FSA-07/23 : Auteur(s): O. Pin and E. Rojas (Uruguay)
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Length-weight relationships of six fish species associated with krill fishery in the Atlantic sector of the Southern Ocean
commonly associated with Antarctic krill fishery, were determined. Samples were collected with Chinese ... understanding the interaction between krill fishery and fish community which associated with krill swarms. Data ... species associated with krill population. Author(s): L. Wei, G.P. Zhu and Q.Y. Yang Title: Length-weight ... relationships of six fish species associated with krill fishery in the Atlantic sector of the Southern Ocean ...
Meeting Document : WG-FSA-17/64 : Auteur(s): L. Wei, G.P. Zhu and Q.Y. Yang
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Pilot test of techniques to mitigate seabird interactions with catcher processor vessels in the Bering Sea pollock trawl fishery: final report
Abstract: We carried out a pilot research program in collaboration with industry to identify ... techniques for future testing that are likely to reduce seabird interactions with catcher processor trawl ... safe. Emphasis was placed on reducing seabird interactions with trawl cables: nets warps, as well as ... close as possible to the water at the stern with a snatch block, paired streamer lines and various ...
Meeting Document : WG-FSA-05/37 : Auteur(s): E.F. Melvin, K.S. Dietrich and T. Thomas (USA)
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Analysis of catch and effort data in SSRUs 882A–B North from the 2015 fishing season including comparisons with data from exploratory fisheries and closed areas
the 2015 survey of the northern region of SSRUs 88.2A–B, including a comparison with all exploratory ... decreasing trend with increasing CPUE. This is consistent with the time required to land and process sets ... with a larger number of fish per 1000 hooks, especially in seamount habitats where the fish are large ... areas, and most importantly, showed the same pattern of both high and low catch rates, along with a ...
Meeting Document : WG-SAM-16/16 Rev. 1 : Auteur(s): K. Large, A. Dunn, S.J. Parker, T. Earl, C. Darby, M. Söffker and O.R. Godø
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IS THE BYCATCH OF VULNERABLE INVERTEBRATE TAXA ASSOCIATED WITH HIGH CATCH RATES OF FISH IN THE ROSS SEA LONGLINE FISHERIES?
fishing footprint. If high fish catch rates are associated with habitats where VMEs are found, impacts ... from fishing are more likely to occur than if VMEs are distributed randomly with respect to fishing ... model, showed a very weak (r2 = 0.02) but statistically significant relationship with VME indicator ... organism catch. With current data there is no functional relationship between toothfish catch and VME ...
Meeting Document : WS-VME-09/07 : Auteur(s): Parker, S.J., Mormede, S.
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Size variations associated with abundance changes in juvenile Notothenia rossii, observed at Potter Cove, South Shetland Islands, since the end of the fishery in the area
rossii, in association with changes in the size and age structure of the juvenile population. Mean ... lengths increased in correlation with poor recruitment to inshore waters and sharply decreased as stronger ... year classes entered the cove. In comparison, Notothenia neglecta, a non commercially fished species ... with similar ecological habits in the fjords, showed little variations around the expected overall mean ...
Meeting Document : WG-FSA-93/13 : Auteur(s): E.R. Marschoff and E.R. Barrera-Oro (Argentina)
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On possible influence of continuous krill fishing technology with the use of ‘air-bubbling suspension system’ on ecosystem elements
ecological influence of continuous krill fishing technology with “air-bubbling suspension system”(CFS), which ... is compared with a conventional fishing method. It was shown that not only hydrobionts, which are in ... close contact with the trawl, will be exposed to ecosystem influence of CFS, but also marine animals ... introduction of fishing technology with the use of air-bubbling suspension systems is forestalled with planning ...
Meeting Document : WG-EMM-06/27 : Auteur(s): S.M. Kasatkina and V.A. Sushin (Russia)
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Marine debris and fishing gear associated with seabirds at sub Antarctic Marion Island – 1998/99
Abstract: Most (52%) of the 306 debris items found in association with seabirds at Marion Island ... much higher than the 1996/97 season. This is consistent with a decrease in the number of unsanctioned ... nests also showed a dramatic decrease since 1997. An adult wandering albatrosses was found with a hook ... Macronectes halli were found with ingested Patagonian toothfish hooks. Author(s): Delegation of South Africa ...
Meeting Document : SC-CAMLR-XVIII/BG/14 : Auteur(s): Delegation of South Africa