Результаты поиска

1. A simulation study of krill fishing by an individual JAPANESE trawler

   commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ... than in the model. Two ad hoc model modifications are introduced to eliminate this inconsistency ... candidate abundance indices (generally of a CPUE form) for krill biomass in the 600 n.mile square oceanic ... sector modelled are considered, and their performance in response to a variety of ways in which the ...

   Meeting Document : SC-CAMLR-VII/BG/37 : Автор(ы): D.S. Butterworth (Invited Expert)

2. KRILL FISHERY REPORT: 2011 UPDATE

   and Poland have fished for krill in Area 48. The total catch reported to May 2011 was 110949 t, most ... for the season falls in the range 153000-214000 t. In 2009/10, 10 vessels fished for krill in Area 48 ... predominantly in Subarea 48.2, notably 48444 t from SOW (South Orkney West). The catches of krill reported from ... SSMUs APBSE, APBSW and APW in 2009/10 were the highest catches reported from those SSMUs in the history ...

   Meeting Document : WG-EMM-11/05 : Автор(ы): Secretariat

3. DISCRIMINATION OF ENVIRONMENTAL VARIABLES THAT INFLUENCE THE CATCH PER UNIT EFFORT: THE CASE OF THE ANTARCTIC KRILL FISHERY

   standardization process consisting of isolating all those exogenous factors from temporal variations in abundance ... from the CPUE time-series. These exogenous factors include those generated by modifications in fishery ... vessel efficiency, variations in fishing strategies, and environmental fluctuations. The selection of the ... the environmental effects vary on different temporal scales in autocorrelated and non-random manners ...

   Meeting Document : WG-EMM-11/P3 : Автор(ы): J.C. Quiroz, R. Wiff, M.A. Barrientos and F. Contreras

4. Note sur l'étude d'évaluation de l'impact des pêcheries sur les populations de pétrels à menton blanc Procellaria aequinoctialis et de pétrels gris Procellaria cinerea aux îles Crozet et Kerguelen

   between 1983 and 2004, with the main cause being changes in environmental variables. Nevertheless, the ... decrease in the population was more marked as a result of previous levels of incidental mortality. At ... present, the level of mortality of white-chinned petrels in Subarea 58.6 has not reached the critical ... mortality of white-chinned petrels in Division 58.5.1 have probably had a negative effect on the population ...

   Meeting Document : SC-CAMLR-XXVI/BG/22 : Автор(ы): Délégation française

5. Beach debris survey Signy Island, South Orkney Islands, 2002/03

   1994/95 (an increase of 38% and 7% since 2001/02 respectively). There was an increase in the number of ... continued the change in trend that began last season in what had otherwise been a declining trend since 1993 ... /94. Such a continued increase in the number of these packaging bands found indicates that the ban on ... their use aboard fishing vessels brought into force by CCAMLR in 1995/96 has yet to prove entirely ...

   Meeting Document : SC-CAMLR-XXII/BG/12 : Автор(ы): Delegation of the United Kingdom

6. Trends of Antarctic fur seal population at SSSI No. 32, Livingston Island, South Shetlands, Antarctica

   Abstract:  We update in this paper the previously reported model for the Antarctic fur seal ... developed at Cape Shirreff during 1998/99, but we could not census the San Telmo Islets. In this regard, we ... had to model the population at the latter site, in order to have a complete estimate of the population ... . From this, we estimated an overall increase of 17% in the total population, including in this figure a ...

   Meeting Document : WG-EMM-99/16 : Автор(ы): R. Hucke-Gaete, D. Torres, A. Aguayo, J. Acevedo and V. Vallejos (Chile)

7. Potentially commercial invertebrates on Ob Bank: Moroteuthis ingens (Oegopsida) and Paralomis aculeata (Anomura) (Division 58.4.4)

   , they have not been fished nor any fishable aggregations of them detected to date in the CCAMLR ... Convention Area. The squid Moroteuthis ingens has been constantly present in bottom trawl catches on Ob Bank ... during aimed fishery for Lepidonotothen squamifrons. At maximum, the proportion of squid in the total ... catches exceeded half of the catch, reaching 1310 kg per hour of trawling. All the squid were in ...

   Meeting Document : WG-FSA-96/15 : Автор(ы): Pshenichnov, L.K.

8. Age determination of the Antarctic fishes Champsocephalus gunnari and Notothenia rossii from South Georgia

   Abstract:  Foremost in the elucidation of accurate population dynamics parameters in fish is a ... , including mortality, population age structure, and changes in individual growth. Most investigations have ... used annual rhythmic deposition in calcified tissues as time marks but, due ts the lack of distinct ... periodicity in Antarctic hydrographic conditions, age determination of Antarctic fish has proven to be ...

   Meeting Document : SC-CAMLR-VI/BG/43 : Автор(ы): R. Radtke (USA)

9. Development of methods for evaluating the management of benthic impacts from longline fishing using spatially explicit production models

   Abstract:  An important management objective for CCAMLR in the high seas region of the Antarctic ... , and interpret. In general, the results of the simulations suggested that management action of areal ... closures in the Ross Sea region are likely to result in an improved outcome over scenarios where there was ... changes in the distribution of future fishing may result in alternative impacts or how different ...

   Meeting Document : WG-SAM-10/19 : Автор(ы): A. Dunn, S.J. Parker and S. Mormede (New Zealand)

10. Slow recovery of previously depleted demersal fish at the South Shetland Islands, 1983–2010

    closed this fishery in 1990. We report changes in size and abundance of the commercially exploited ... declined from 1983 to 1991, and an increase in mean size during 1983-84 is consistent with weak cohorts ... stability (1992-1994), a sharp increase in length and a continued decline in relative abundance indicated ... period showed no change in modal size or mean length of the fish. We relate these patterns to the fishery ...

    Meeting Document : WG-FSA-12/P01 : Автор(ы): E.R. Marschoff, E.R. Barrera-Oro, N.S. Alescio and D.G. Ainley

Страницы