Результаты поиска

1. SO-AntEco: Contributing information and scientific advice on benthic biodiversity in the South Orkney Islands (Domain 1) region

   with an international team of scientists from the Scientific Committee for Antarctic Research (SCAR ... of the cruise was to contribute towards a better understanding of selected benthic habitats around ... , 2014). The benthic assemblages of the SOISS MPA region were found to be strongly correlated with ... substrate, where hard substrates hosted a greater number of individuals, taxa and biomass with a dominance ...

   Meeting Document : WG-EMM-17/37 : Автор(ы): M.J. Brasier, S.M. Grant, P.N. Trathan, L. Allcock, O.S. Ashford, H. Blagbrough, A. Brandt, B. Danis, R. Downey, M. Eléaume, P. Enderlein, C. Ghiglione, O. Hogg, K. Linse, M. Mackenzie, C. Moreau, L. Robinson, E. Rodríguez, V. Spiridonov, A. Tate, M. Taylor, C. Waller, H. Wiklund and H.J. Griffiths

2. Revised proposal for the ongoing research plan on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21)

   and WG-FSA-16/33 Rev. 1) for a period of 5 years. The proposal submitted here has been substantially ... part of 58.4.4b_2 (WG-FSA-18/23) and a new French vessel has joined the research plan to increase ... -19, while the main concerns regarding objective 2 (“ Provide an assessment of the status and ... productivity of Patagonian toothfish stock ”) and 5 (“ Contribute to scientific research programs on killer ...

   Meeting Document : WG-SAM-2019/08 : Автор(ы): Delegations of Japan and France

3. Estimating confidence intervals for fish stock abundance estimates from trawl surveys

   estimates of abundance obtained from trawl surveys conducted by means of the swept area method, using ... likelihood ratios from Aitchison's delta distribution. Simulation tests of the method show that unbiased ... estimates of density and biomass can be obtained and that the estimated confidence intervals have close to ... the nominal coverage probability. Performance deteriorates in cases where few of the hauls contain ... calculating asymptotic confidence intervals for estimates of abundance obtained from trawl surveys conducted ... by means of the swept area method, using likelihood ratios from Aitchison's delta distribution ... . Simulation tests of the method show that unbiased estimates of density and biomass can be obtained and that ... deteriorates in cases where few of the hauls contain fish and the coefficient of variation (CV) is high. The ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 203–207 : Автор(ы): de la Mare, W.K

4. Fish stock assessment survey in Subarea 48.3

   fish survey in the vicinity of South Georgia, CCAMLR Subarea 48.3, is described. Details are given of ... positions of hauls, catch rates and size composition of catches. The standing stock of one of the most ... Abstract A demersal fish survey in the vicinity of South Georgia, CCAMLR Subarea 48.3, is described ... . Details are given of positions of hauls, catch rates and size composition of catches. The standing stock ... of one of the most important commercial species in the area, Champsocephalus gunnari, is shown to ... . 1. INTRODUCTION The fish stocks in Subarea 48.3, South Georgia, have been the subject of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 25–67 : Автор(ы): Everson, I., G. Parkes, K.-H. Kock, S. Campbell, Z. Cielniaszek and J. Szlakowski

5. WS-VME-09

   List of participants WS-VME-09/03 List of documents WS-VME-09/04 PHYSICAL CONTROLS ON CORAL COMMUNITIES ... , A.L., O’Brien, P.E. WS-VME-09/05 ANALYSIS OF VME DATA COLLECTED BY UK VESSELS FISHING IN THE ROSS SEA ... GENETIC CONNECTIVITY TO IDENTIFY VULNERABLE MARINE ECOSYSTEMS (VMES) IN ANTARCTICA – THE ISSUE OF SCALE ... Wilson, N.G. WS-VME-09/07 IS THE BYCATCH OF VULNERABLE INVERTEBRATE TAXA ASSOCIATED WITH HIGH CATCH RATES ...

   Meeting

6. A feedback management strategy for the krill fishery in Subarea 48.1

   Abstract:  We present a Stage-2 strategy for in-season feedback management (FBM) of the krill ... fishery in Subarea 48.1.  This strategy is a combination of two strategies that were separately proposed ... to the WG-EMM in 2015 and is based on a broad foundation of work undertaken to address a suite of ... action items specified by the WG-EMM.  A decision rule to adjust catches in groups of SSMUs (gSSMUs) is ...

   Meeting Document : WG-EMM-16/48 : Автор(ы): G.M. Watters, J.T. Hinke and C.S. Reiss

7. Estimating by-catch from CCAMLR data

   Abstract:  Quantifying the catch rates and biomass of by-catch species on CCAMLR’s fishing grounds ... is an essential component of the assessment advice prepared by WG-FSA. However, such analyses are ... problematic because the CCAMLR datasets are incomplete and have a high occurrence of ‘missing catch values’. A ... method to treat ‘missing catch values’ using estimates derived from the mean weights of by-catch species ...

   Meeting Document : WG-FSA-SAM-05/4 : Автор(ы): Secretariat

8. Conserving seabirds competing with fisheries for food – observations from southern Africa and Marion Island

   Abstract:  The paper describes moves towards accounting for the food requirements of some of ... southern Africa’s seabirds in management of pelagic fish stocks. It also considers moves towards ... establishing target populations for seabirds in South Africa, especially those of conservation concern. It ... describes anomalous breeding by several species of seabird at Marion Island in 1997. These are assumed to ...

   Meeting Document : WG-EMM-02/26 : Автор(ы): R.J.M. Crawford, C.M. Duncombe Rae and D.C. Nel (South Africa)

9. Catch Uncertainty in Krill Fisheries

   Abstract:  Catch uncertainty is a component of uncertainty that is not routinely considered by ... reported catch of 600 000t could actually represent a catch in ‘green weight’ of 2.5 million tonnes ... . Quantifying the level of uncertainty in reported catches of krill would require information on product ... well as the product composition of catches. Author(s):  Secretariat Title:  Catch Uncertainty in Krill ...

   Meeting Document : WG-EMM-08/46 : Автор(ы): Secretariat

10. Beach debris survey - Main Bay, Bird Island South Georgia 1992/93

    Abstract:  The third year of survey of beach debris at Main Bay, Bird Island reported only a small ... winter accumulation, respectively. Nylon suing formed 79% of debris; most fragments were identical to ... those used in the local longline fishery as indicated by sections of longline washed ashore. Packaging ... bands were not found until August, coinciding with the arrival of krill fishing vessels off northwest ...

    Meeting Document : CCAMLR-XIII/BG/03 : Автор(ы): Delegation of United Kingdom

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