Résultats de la recherche
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DEPREDATION AROUND SOUTH GEORGIA AND THE IMPLICATIONS ON STOCK ASSESSMENT OF D. ELEGINOIDES
levels of depredation caused by killer whales (Orcinus orca) and sperm whales (Physeter macrocaphalus ... %) with killer whales present on 562 lines (3.8%) and sperm whales on 2588 lines (17.7%). By comparing the ... cetaceans and noises made by the vessels, generated by propeller cavitations, gearing and drive shafts, the ... distance of 3.4nm away were picked up by the hydrophones and it is thought that these acoustic cues could ...
Meeting Document : WG-FSA-09/16 : Auteur(s): J. Moir Clark, D.A. Agnew, P. McCarthy and M. Unwin (United Kingdom)
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INFORMATION ON ILLEGAL FISHING IN STATISTICAL AREA 58 ASSESSMENT OF ILLEGAL FISHING IN FRENCH WATERS AROUND KERGUELEN AND CROZET ISLANDS REPORT OF OBSERVATIONS AND INSPECTIONS IN THE CCAMLR AREA 2009/2010 SEASON (1 JULY 2009 – 15 AUGUST 2010)
Crozet (58.6) Illicit historical fishing gear has been found by licensed fishing vessels within the ... Abstract: 1/ Resources deployed by France to fight illegal fishing The system deployed by France ... February 2004 at CROSS1 Réunion, and is used by that institution to carry out and direct monitoring at sea ... waters. The agreement, which was signed in January 2008 and has already been ratified by the French ...
Meeting Document : CCAMLR-XXIX/44 : Auteur(s): Delegation of France
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Feeding habits and prey consumption of Antarctic minke whale Balaenoptera bonaerensis in the Indo–Pacific region of the Southern Ocean
in stomach contents, and 2) to estimate the amount of prey consumed by whales, accounting for some ... uncertainties. The analysis is based on the data from whales taken by JARPA (Japanese Whale Research Program ... by the whales in each reproductive status group was estimated using an energy-requirement approach ... . Based on the results obtained by three equations combined and Monte Carlo simulations, the daily prey ...
Meeting Document : WG-EMM-17/14 : Auteur(s): T. Tamura
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Interannual variation in the diet of the Antarctic prion Pachyptila desolata at South Georgia
regurgitated by adult birds during five breeding seasons at Bird Island, South Georgia. In all years the diet ... . Antarctic krill Euphausia superba was the dominant prey item in three years and was replaced by calanoid ... krill availability Antarctic Prions forage closer inshore, taking copepods by filtering surface water ... through their palatal lamellae. By switching to feeding on copepods Antarctic Prions are apparently able ...
Meeting Document : WG-EMM-97/12 : Auteur(s): Croxall, J.P., Edwards, T.M., Reid, K.
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The diet of the Antarctic fur seal Arctocephalus gazella at Harmony Point, Nelson Island, South Shetland Islands
was investigated at Harmony Point, Nelson Island, South Shetland Islands, by the analysis of 18 and 33 ... frequent prey (74,5%) and predominated by mass (54,4%), whereas krill did by number (94.2%). This pattern ... coincides well with the observed in 1996/97, but in 1995/96 krill was the most important prey also by mass ...
Meeting Document : WG-EMM-97/60 : Auteur(s): Carlini, A., Baroni, A., Casaux, R.
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Data requirements for research fishing
-by-haul basis using the format used by research vessels (data form C4); and (2) research fishing ... haul-by-haul basis using the formats used during commercial fishing by vessels (data form C2) and ...
Meeting Document : WG-SAM-12/07 : Auteur(s): Secretariat
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Proposal of the Russian Federation to open Subarea 88.3 for exploratory fishery of Dissostichus spp.
Abstract: In 2011 and 2012 in Subarea 88.3 research fishing for toothfish has been conducted by ... Russia. In 2011 fishing was carried out by Russian longliner “Sparta” out and in 2012 it was longliner ... calculated by the accepted in SC-CCAMLR-XXX/5 p.2.40 (ii) formula. Value of toothfish`s stock by SSRUs and ...
Meeting Document : WG-FSA-13/12 : Auteur(s): Delegation of the Russian Federation
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Estimates of local biomass, including estimates of uncertainty, for Antarctic (Dissostichus mawsoni) and Patagonian (Dissostichus eleginoides) toothfish in research blocks in Subareas 48.2, 48.6, 58.4 and 88.3
bootstrapped confidence intervals using both CPUE-by-seabed area and Chapman biomass estimation methods agreed ... at WG-SAM-16 with revisions to the CPUE-by-seabed area parameter values agreed at WG-SAM-17. The ... analysis includes Research Blocks in Subareas 48.2, 48.6, 58.4 and 88.3. Given the changes in CPUE-by ... higher CPUE-by-seabed area estimates has also resulted in a greater overlap in confidence intervals with ...
Meeting Document : WG-FSA-17/42 : Auteur(s): CCAMLR Secretariat
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Meta-analysis of catch reporting in CCAMLR exploratory fisheries
Abstract: The Secretariat has prepared a meta-analysis of the target and by-catch reported in ... target species divided by the total number of fish caught (the target catch ratio) is used as simple ... metric of the relative level of target and by-catch reported for each haul. This index showed little ... data reported in CCAMLR fisheries may include the development of a detailed manual on by-catch sampling ...
Meeting Document : WG-FSA-18/14 : Auteur(s): CCAMLR Secretariat
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Reconciling fisheries with conservation: three examples from the Southern Ocean
Abstract: Preservation of ecosystem structure is the guiding principle by which the Commission ... employed by CCAMLR is the application of a precautionary approach, which explicitly incorporates ... compared to the precautionary limit established by CCAMLR, fishing effort concentrated near colonies of ... land-breeding krill predators may pose a threat as well as those posed by the broader-scale influence ...
Meeting Document : WG-EMM-04/48 : Auteur(s): R.P. Hewitt (USA), I. Everson (United Kingdom) and C.D. Jones (USA)