Résultats de la recherche
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Supplementary data on exploited stocks in Division 58.5.1 (Kerguelen)
Notothenia rossii, a species which is at present only fishable as a by-catch. The total biomass of the stock ... reached legal catch size. The value of the selected abundance index (catch per unit effort expressed in ... reduction in catch and fishing effort. This trend could well be reversed by too high a catch in 1988/89 ... fishable as a by-catch. The total biomass of the stock, however, remains very low according to the ... good results in 1988/89, once the cohort had reached legal catch size. The value of the selected ... abundance index (catch per unit effort expressed in tonnes per fishing hour) is, however, lower than those ... in the abundance index, following a reduction in catch and fishing effort. This trend could well be ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 147–161 : Auteur(s): Duhamel, G.
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Leslie analyses of commercial snow crab trap data: a comparative study of catchability coefficients
Abstract: If we could determine the relationship between catch rates in a trap survey and ... from a survey conducted with traps. One way to calibrate the catch rates is to examine available ... historical Leslie analyses of commercial catch data obtained over several years and quantify the relationship ... between catch rate at the beginning of the season and the corresponding population estimate obtained by ...
Meeting Document : WS-CRAB-93/13 : Auteur(s): J.M. Hoenig, E.G. Dawe, D.M. Taylor, M. Eagles and J. Tremblay (USA)
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Use of the Leslie stock depletion model for the assessment of local abundance of Patagonian toothfish (Dissostichus eleginoides)
used to examine local patterns in catch per unit effort (CPUE) in the longline fisheries for Patagonian ... modelled using a linear regression of catch per hook against cumulative catch, when single vessels operate ... catchability and insufficiently high catch to cause local depletion. Suggestions are made for further work ... , Chile Abstract The Leslie depletion model has been used to examine local patterns in catch per unit ... analyses to examine whether declines in CPUE can be modelled using a linear regression of catch per hook ... against cumulative catch, when single vessels operate in localised areas for periods of at least three ... catch to cause local depletion. Suggestions are made for further woyk. Resume Le modele ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 55–77 : Auteur(s): Parkes, G., C.A. Moreno, G. Pilling and Z. Young
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Descriptive analysis of haul data from FV Atlantic Navigator in Elephant Islands (48.1), South Georgia Islands (48.3) and South Orkney Islands (48.3) krill fishery (summer 2004 to early winter 2005)
were analyzed to describe differentialy catch rates (catch per day and catch per minute) of the three ... different fishing zones studied. The total catch registered was 41837 tonnes: 50% of this capture was ... obtained at South Orkney islands zone. The highest catch rate were calculated for the same fishing zone ...
Meeting Document : WG-EMM-05/12 : Auteur(s): O. Pin, H. Nión, E. Delfino and P. Meneses (Uruguay)
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Reports on abundance and biological information on toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2010/11 season
report described the results during the survey in two SSRUs (B & C) of Ob Lena Bank. Total catch ... (excluding fish released alive) of Dissostichus eleginoides and other by-catch species was 37.8 tonnes in the ... survey area in 70 longline sets. D. eleginoides showed the highest catch of 35.4 tonnes, contributing ... 93.6 % to the total catch. CPUEs of D. eleginoides for 56 hauls where only trotline system was adopted ...
Meeting Document : WG-SAM-11/06 : Auteur(s): K.Taki, T. Iwami and M. Kiyota (Japan)
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Revised reports on abundance and biological information on toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2010/11 season
the survey in two SSRUs (B & C) of Ob Lena Bank. Total catch (excluding fish released alive) of ... Dissostichus eleginoides and other by-catch species was 37.8 tonnes in the survey area in 70 longline sets. D ... . eleginoides showed the highest catch of 35.4 tonnes, contributing 93.6 % to the total catch. Mean CPUEs of D ... CPUE in terms of number was same level between the years. This may be due to the catch of small fish ...
Meeting Document : WG-FSA-11/14 : Auteur(s): K. Taki, T. Iwami and M. Kiyota (Japan)
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Selectivity-induced bias in growth parameter estimates
being included in catch samples. Fish were included in catch samples from the population with ... Subarea 48.3. Substantial selectivity-induced bias was demonstrated, with the simulated catch sample data ... simulated catch sample data and the growth parameter estimates were similar to those reported by Belchier ...
Meeting Document : WG-FSA-SAM-05/19 : Auteur(s): G.P. Kirkwood (United Kingdom)
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Proposition d'amélioration et de clarification du système de documentation des captures de la CCAMLR
(Dissostichus spp.) into commerce, CCAMLR’s catch documentation scheme tracks shipments from the point of ... harvest through final import for consumption. The move, in 2010, to a fully electronic Catch ... to establish effective catch documentation schemes look to the e-CDS as a model of effective and ... proposal to enhance and clarify CCAMLR’s Catch Documentation Scheme Approval: Approved ...
Meeting Document : CCAMLR-XXXI/38 : Auteur(s): Delegation of the USA
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Analysis of the toothfish fishery indices in Subareas 88.1 and 88.2 when using different types of longline gears
used at the fishery, the catch indices were normalized to 1000 hooks. The effect of the gear types ... hooks), by-catch CPUE (kg/1000 hooks) and normalized target catch ratio is considered. Particular ... attention was focused to the analysis of the length-species compositions of catch by years and SSRU while ...
Meeting Document : WG-SAM-17/23 : Auteur(s): S. Kasatkina
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Proposition pour modifier la mesure de conservation 10-05 afin d'établir une transparence des totaux de captures, du transbordement et du débarquement de légine
Abstract: The United States proposes to amend the CCAMLR electronic catch documentation system (e ... vessel’s catch, as well as the amount and description of catch that is transshipped, and to capture ... : Proposal to modify Conservation Measure 10-05 to establish transparency related to the total catch ...
Meeting Document : CCAMLR-XXXVI/24 : Auteur(s): Delegation of the USA