Resultados de la búsqueda
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Estimating fishing gear selectivity for trawlers using length-frequency data from concurrent commercial trawl and longline fishing for Patagonian toothfish in Division 58.5.2 and the ratio of their hazard functions
Abstract: The upper-arm of the length-dependent fishing selectivity function for trawlers fishing ... for Patagonian toothfish around Heard Island (Division 58.5.2) was modelled as the exponential of a ... from commercial operations of each of trawlers and longliners fishing concurrently for 3 seasons ... assuming that, for the upper range of lengths, fish are fully selected by longliners but not by trawlers ...
Meeting Document : WG-FSA-06/35 : Autor(es): S.G. Candy (Australia)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands, 1998/99
Abstract: The results of the third annual survey of entanglement of Antarctic fur seals at Signy ... Island, South Orkney Islands are reported for the 1998/99 summer season. There were ten sightings of ... seals wearing neck collars of man-made debris, although one individual was observed twice and another ... observed on three separate occasions. Two additional sightings were of animals that had been previously ...
Meeting Document : SC-CAMLR-XVIII/BG/06 : Autor(es): Delegation of the United Kingdom
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Analysis of variables influencing finfish by-catch in the krill fishery in Area 48
Abstract: This report presents the results of a method used to explore potential explanatory ... variables influencing finfish bycatch in the krill fishery of Area 48. Records of finfish bycatch in the ... -2011/12. The majority of fish caught were either small juveniles or larvae, dominated by Myctophidae ... (lanternfish) and Channichthyidae (icefish) with lower levels of Nototheniidae present. The influence of ...
Meeting Document : WG-EMM-12/28 : Autor(es): S.M. Martin, T. Peatman, J. Moir Clark (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)
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Fatty acid analysis to infer diet of Antarctic toothfish caught in February 2012 in the southern Ross Sea
south of SSRUs 881.J and 881.L in the southern Ross Sea, their lipid composition was determined and ... compared tolipid profiles of fish and invertebrate species taken as bycatch in the fishery or collected ... from stomachs of toothfish. Stable carbon and nitrogen isotope ratios were also determined to further ... identify feeding relationships between these species. The aim of this study was to establish the ...
Meeting Document : WG-FSA-12/61 : Autor(es): I. Yeon, H.-S. Jo, C. Lim (Republic of Korea), S.M. Hanchet (New Zealand), D.-W. Lee and C.-K. Kang (Republic of Korea)
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Fish Heaven: a Monte Carlo, spatially explicit single species fishery model for the testing of parameter estimation methods
basic features of standard fish modeling with a number of optional extras. It was designed within an ... object oriented framework to allow for the possible extension in a number of directions. In particular it ... was designed with the view of testing the efficacy of different statistical sampling regimes given ... various plausible spatial structures of fish stock. The model has a simple age and space structured ...
Meeting Document : WG-FSA-00/36 : Autor(es): I. Ball and A. Constable (Australia)
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AGREEMENT ON THE CONSERVATION OF ALBATROSSES AND PETRELS – REPORT TO AD HOC WG-IMAF
Abstract: The Agreement on the Conservation of Albatrosses and Petrels held the Third Session of ... its Meeting of the Parties from 27 April – 1 May 2009. Key outcomes of relevance to the Ad Hoc WG-IMAF ... were the adoption of the Advisory Committee’s Work Programme for 2010-2012 and the granting of approval ... for the ACAP Secretariat to enter into a Memorandum of Understanding with CCAMLR. The proposed MoU has ...
Meeting Document : WG-IMAF-09/17 : Autor(es): Submitted by ACAP
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A risk management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems (VMEs) are avoided. Due to the high ... levels of uncertainty surrounding both the evidence of VME presence and the consequences of interaction ... with different types of gear, a risk management framework is proposed, similar to that which has been ... used successfully by IMAF to minimise the effects of longline fishing mortality on seabirds. The aim of ...
Meeting Document : WG-EMM-08/37 : Autor(es): K. Martin-Smith (Australia)
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SEASONAL ESTIMATION OF ABUNDANCE BY BOOTSTRAPPING INEXACT RESEARCH DATA (SEABIRD): A METHOD FOR ASSESSING ABUNDANCE AND UNCERTAINTY FROM HISTORICAL COUNT DATA USING ADELIE PENGUINS AS A CASE STUDY
Abstract: In addition to a review of published studies on Adelie penguin abundance at breeding ... of that kind. The present study attempts to implement this estimator in the form of a parametric ... bootstrap model, utilising as input data published counts of Adelie penguins and estimates of their ... uncertainty at breeding sites in Antarctica. To achieve this task, a menu-driven suite of routines titled ...
Meeting Document : WG-EMM-PSW-08/11 : Autor(es): J.P. McKinlay and C.J. Southwell (Australia)
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Diet and feeding ecology of the diving petrels Pelecanoides georgicus and P. urinatrix at South Georgia
Abstract: The diet of the diving petrels Pelecanoides georgicus and P. urinatrix was studied ... Bird Island, South Georgia. The diet of both species was dominated by crustaceans. in particular ... euphausiids (mainly Euphausia superba and some ThysCll1oessa), which contributed 47-76% of the biomass of ... crustaceans in the diet of P. georgicus. and copepods, which contributed 71 % of the biomass of crustaceans in ...
Meeting Document : WG-EMM-97/10 : Autor(es): Croxall, J.P., Prince, P.A., Hill, H.J., Edwards, T.M., Reid, K.
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Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia
Abstract: The incidence of entanglement in man-made debris by Antarctic fur seals (Arctocephalus ... gazella) at Bird Island, South Georgia, was monitored throughout the austral winter and summer of 1990/91 ... as part of an ongoing study by the British Antarctic Survey. A minimum of 8 seals were sighted ... entangled, 7 (88%) of which had their neck collars removed, during the winter months (April – October ...
Meeting Document : CCAMLR-X/BG/05 : Autor(es): Delegation of UK