Результаты поиска

1. A simulation approach to the evaluation of recruitment surveys for D. eleginoides for the Heard Island Plateau region (Division 58.5.2)

   Abstract:  Assessments of long-term sustainable yield using the Generalised Yield Model (GYM) and ... the setting of total allowable catches (TAC) for Patagonian Toothfish, Dissostichus eleginoides, for ... . Evaluation of both the current RSTS design for Division 58.5.2 and some options for future modifications of ... . Census of fish stocks by age class were compared to population estimates based on simulated RSTS hauls ...

   Meeting Document : WG-FSA-04/74 : Автор(ы): S.G. Candy, C.R. Davies and A.J. Constable (Australia)

2. Demersal fish communities in the Ross Sea region of Antarctica: comparisons between video and trawl survey methods

   using the towed camera and at least one of the trawl types, allowing direct comparisons between sampling ... Abstract:  Reliable estimates of demersal fish community composition and population densities are ... essential for understanding the ecological effects of fisheries. Such estimates are conventionally derived ... . Using data collected during a survey of demersal fish communities in the Ross Sea region of Antarctica ...

   Meeting Document : WG-FSA-12/51 : Автор(ы): D.A. Bowden, S.M. Hanchet and P.M. Marriott (New Zealand)

3. An initial examination of using CPUE as a fishery performance index for the krill fishery

   Abstract:  Early analyses of CPUE in the krill fishery concluded that it was not a useful index of ... krill abundance. However, understanding the factors effecting the operation of the krill fishery and the ... extent to which these reflect changes in krill abundance are key elements of developing feedback ... management of the krill fishery. This analysis reviewed catch and effort data from the krill fishery for the ...

   Meeting Document : WG-EMM-16/10 : Автор(ы): CCAMLR Secretariat

4. A single-area stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the 2004/05 season

   ). A range of model sensitivities were examined, with the base case assuming the Ross Sea fishery as a ... evidence of non-convergence, particular in the declining right-hand limb of the fishing selectivity ... this would have little impact on the estimates of key model parameters and yield estimates. MCMC ... estimates of initial (equilibrium) spawning stock abundance (B0) were 69 400 t (95% credible intervals 47 ...

   Meeting Document : WG-FSA-05/33 : Автор(ы): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)

5. Ecological implications of body composition and thermal capabilities in young Antarctic fur seals (Arctocephalus gazella)

   source of energy and a major component of insulation that allow them to meet these demands. To examine ... the role of lipid stores in a high-latitude pinniped, the body composition and thermoregulatory ... capabilities of Antarctic fur seal (Arctocephalus gazella) pups and yearlings were measured via flow-through ... respirometry and hydrogen isotope dilution. From these data we constructed a model to examine the importance of ...

   Meeting Document : WG-EMM-04/69 : Автор(ы): M.R. Rutishauser, D.P. Costa, M.E. Goebel and T.M. Williams (USA)

6. Updated description of Patagonian toothfish (Dissostichus eleginoides) tagging and ageing programs in Division 58.5.2, 1997–2015

   , considerably adding to information on the structure of the population. The ageing program at AAD has produced ... Abstract:  In 2014, CCAMLR endorsed a TAC of 4410 t of Patagonian toothfish in Division 58.5.2 ... an additional 2559 estimates of age, for fish captured during the 2014 and 2015 Random Stratified ... previous maximum age estimate of 42 years. These data have been used to develop age length keys and a ...

   Meeting Document : WG-FSA-15/55 : Автор(ы): D.C. Welsford, B. Farmer, T.D. Lamb, C. Péron, E. Woodcock and P.E. Ziegler (Australia)

7. Spatial distribution and swarm characteristics of Antarctic krill around the South Shetland Islands

   Abstract:  The spatial distribution and swarm characteristics of Antarctic krill were studied ... , thickness and length of swarms were estimated from the 120kHz data. The full spatial distributions of ... than the other three years. The results also indicated that more krill swarms located at deeper water ... majority of swarms were also found in the upper 100 m layer. The swarm-based method provides a promising ...

   Meeting Document : WG-EMM-18/42 : Автор(ы): X. Yu, X. Wang and X. Zhao

8. A versatile approach to minimise damage or loss of longline gear due to sea-ice

   Abstract:  At SAM 2019, there were again reports on damage and/or loss of longline gear, most ... quickly varying sea ice cover, there is an increased risk that any parts of longline gear floating on the ... buoy recovery systems for short-term deployment of scientific instruments on the sea floor and invites ... FSA to: (1) to (re-)discuss the issue of damage or loss of longline gear due to sea ice, including the ...

   Meeting Document : WG-FSA-2019/04 : Автор(ы): S. Hain, T. Brey and K. Teschke

9. RESPONSE OF ANTARCTIC BENTHIC COMMUNITIES TO DISTURBANCE: WRST RESULTS FROM THE ARTIWCIAL BENTHIC DISTURBANCE EXPERIMENT ON THE EASTERN WEDDELL SEA SHELF, ANTARCTICA

   simulate the impact of grounding icebergs on the seabed and follow the steps and timescales of recovery of ... this experimental field study. By means of 11 densely-placed hauls with a modified bottom trawl, a ... seabed area of approximately 100 x 1000 m was artificially scoured to inflict a similar damage to the ... drastically reduced by a factor of 10, while mean abundances were only slightly reduced. Demersal fish biomass ...

   Meeting Document : WS-VME-09/P05 : Автор(ы): Rossi, S., Mintenbeck, K., Knust, R., Isla, E., Gerdes, D.

10. Population dynamics of wandering albatross Diomedea exulans and Amsterdam albatross D. amsterdamensis in the Indian Ocean and their relationships with longline fisheries: conservation implications

    Abstract:  Studies carried out over the past three decades at Crozet and Kerguelen Islands in the ... 1986 have shown slow recovery. The population of the endangered Amsterdam albatross Diomedea ... study of the Crozet population indicates that the earlier decline was mainly the result of increased ... adult mortality, and secondarily of low recruitment. Satellite tracking studies of breeding birds and ...

    Meeting Document : WG-FSA-96/09 : Автор(ы): Jouventin, P., Brothers, N., Weimerskirch, H.

Страницы