Resultados de la búsqueda

1. Spawning periods and locations of Champsocephalus gunnari in Subarea 48.3 (South Georgia and Shag Rocks): a review

   indicates that they spawn inshore close to the bays and over the shelf to the northeast. There is also ... evidence that spawning is protracted and occurs from January through to July. The majority of commercial ... fishing activities for this species take place to the northwest of South Georgia over 12 nautical miles ... from the coast and do not overlap with important spawning areas. Therefore the current conservation ...

   Meeting Document : WG-FSA-07/55 : Autor(es): S. Clarke, M. Belchier and M.A. Collins

2. Time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2005, Antarctica

   Abstract:  An assessment of the environmental processes influencing variability in the recruitment ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... westerly winds (westerlies) determined from sea-level pressure differences across the Drake Passage ...

   Meeting Document : WG-EMM-05/17 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)

3. Proposal for a mark–recapture experiment to estimate toothfish population size in Subarea 48.4

   Abstract:  One UK vessel fished around the South Sandwich Islands (Subarea 48.4) in in July, 2005 ... programme to assess the toothfish population. Catch rates were similar to those experienced in Subarea 48.3 ... . The UK proposes to undertake a more extensive mark-recapture experiment in Subarea 48.4 over the 2006 ... – 2007 fishing seasons. The objective of the experiment will be to assess toothfish population structure ...

   Meeting Document : WG-FSA-05/57 : Autor(es): Delegation of the United Kingdom

4. KRILL FISHERY REPORT: 2008 UPDATE

   Abstract:  As reported to the CCAMLR Secretariat, 6 vessels from 5 Contracting Parties are fishing ... for krill in Area 48 in the 2007/08 season, and these vessels have taken 84110 t of krill to date. The ... preliminary estimate of the total catch of krill for the season is approximately 108343 t. This compares with ... 104586 t of krill reported in the STATLANT data for 2006/07. With the exception of Poland, all ...

   Meeting Document : WG-EMM-08/05 : Autor(es): Secretariat

5. Krill catch distribution in relation to predator colonies 1987 to 1992

   Abstract:  The distribution of krill catches in relation to land-based predator colonies ... , calculated from CCAMLR fine-scale data, is shown for Subareas 48.1 and 48.2. The pattern of catches in 1992 ... is similar to that seen for other years, with 70% of the total catch from Subarea 48.1 being taken ... within 100 km of colonies and between the months of December to March inclusive (the ‘critical period ...

   Meeting Document : WG-KRILL-93/10 : Autor(es): Secretariat

6. Small scale krill surveys: simulations based on observed euphausiid distributions

   the effects of krill swarm orientation and shape on the success of two proposed survey designs. The ... distributions each of which is given 4 rotations. The results indicate that the coefficient of variation (c.v ... .) of mean krill density varies inversely with mean density, and is lowest for the survey design ... utilising parallel transects set at right angles to the long axis of the aggregations. Calculations based on ...

   Meeting Document : WG-KRILL-91/19 : Autor(es): D.J. Agnew (Secretariat) and S. Nicol (Australia)

7. Incidental mortality arising from fisheries activities around Kerguelen Island (Division 58.5.1)

   58.5.1) have been identified. The most significant mortality has been noted during directed trawling for ... Champsocephalus gunnari on the Kerguelen shelf. This is caused by the electrical cable linking the trawler to the ... experimental long-lining cruise in deep waters at the shelf edge also showed the potential impact of this type ... of fishery if it develops in the Indian Ocean sector of the Southern Ocean. Trammel net fishing for ...

   Meeting Document : SC-CAMLR-X/BG/14 : Autor(es): Delegation of France

8. FIELD IDENTIFICATION GUIDE TO HEARD ISLAND AND MCDONALD ISLAND (HIMI) BENTHIC INVERTEBRATES

   Abstract:  At CCAMLR-XXVI the Working Group on Fish Stock Assessment (WG-FSA) noted a lack of ... specific reference material for the identification of benthic invertebrates in areas specific to which ... observers carry out their activities (SC-CAMLR-XXVI: Annex 5, paragraph 6.32). To improve the standard of ... observer identifications and also to assist in the identification of vulnerable areas, the Scientific ...

   Meeting Document : WG-FSA-08/59 : Autor(es): T. Hibberd and K. Moore (Australia)

9. A comparison of Antarctic krill (Euphausia superba Dana) caught by nets and taken by macaroni penguins (Eudyptes chrysolophus Brandt): evidence for selection?

   ) breeding at Bird Island, South Georgia and concurrent net samples caught within the penguin foraging range ... , we examined the potential selection of different length and maturity stages of Antarctic krill ... (Euphausia superb a Dana). Using Monte Carlo randomised simulation techniques we also determined the ... probability of obtaining length-frequency distributions of krill different from that obtained from the net ...

   Meeting Document : WG-EMM-96/08 : Autor(es): Croxall, J.P., Hill, H.J., Trathan, P.N., Watkins, J.L.

10. Reproduction in Antarctic notothenioid fish - a review

    although spawning is likely to take place annually. However, part of the populations of Champsocephalus ... gunnari in the Atlantic Ocean sector do not spawn each year. Gonadosomatic index (GSI) of females is 15–40 ... % at spawning. Apart from a few nototheniid species the GSI of males is much less and typi6dlly only 15 ... it is not attained until 70–80% of the maximum length. The only exception is Champsocephalus gunnari ...

    Meeting Document : SC-CAMLR-X/BG/12 : Autor(es): Delegation of Germany

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