Résultats de la recherche
-
Estimating by-catch from CCAMLR data
Abstract: Quantifying the catch rates and biomass of by-catch species on CCAMLR’s fishing grounds ... problematic because the CCAMLR datasets are incomplete and have a high occurrence of ‘missing catch values’. A ... method to treat ‘missing catch values’ using estimates derived from the mean weights of by-catch species ... CCAMLR datasets and allow quantitative analyses of by-catch to be based on the best, scientific data ...
Meeting Document : WG-FSA-SAM-05/4 : Auteur(s): Secretariat
-
Results on by-catch of fish during Ukrainian, Polish and Japanese krill fishery in the South Orkney Islands, South Georgia and Shetland Islands areas
Abstract: Observations on abundance of by-catch fishes were made during fishing operations for ... the South Orkney Islands area, eight hauls were subjected to analysis and there was no by-catch of ... species including one unidentified bathydraconid fish were found as by-catch juveniles during three ... Polish and Japanese by-catch samples, and its estimated value of an arithmetic mean was 11541 ind./t ...
Meeting Document : WG-FSA-96/19 : Auteur(s): Cielniaszek, Z., Pakhomov, E.A., Iwami, T.
-
Report on fish by-catch on exploratory fishing in Divisions 58.4.1 and 58.4.2
Abstract: In this paper, we report on fish by-catch during exploratory fishing activities ... undertaken in Divisions 58.4.1 and 58.4.2 during the 2012 to 2018 seasons. Fish by-catch comprised 14 species ... or groups of species. In 2018, by-catch represented 12% of the total catch (43 tonnes over 307 tonnes ... families: Macrouridae and Channichthyidae. The others most common by-catch species or families were ...
Meeting Document : WG-FSA-18/28 : Auteur(s): C. Péron, P. Yates, D. Maschette, C. Chazeau, P. Ziegler, D. Welsford, N. Gasco and G. Duhamel
-
Indicative trends in by-catch of sharks in the CAMLR Convention Area
.” Further, that “any by-catch of sharks shall, as far as possible, be released alive.” Here, we examine ... trends in shark by-catch in the CAMLR Convention Area using information reported by vessels and ... shark by-catch reported by both sources, the available data suggests that shark by-catch may have ... increased during the last 10-year period, with most of the by-catch reported in Division 58.5.2 and ...
Meeting Document : WG-FSA-18/63 Rev. 1 : Auteur(s): C.D. Jones
-
Preliminary assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (Division 58.4.3b), based on the analysis of fine-scale catch and effort data
resource in this area, and the lack of a scientific basis for setting catch limits in these areas (SC-CAMLR ... assessing these stocks. At its meeting in July 2007, WG-SAM agreed that fine-scale analysis of catch and ... -3.7), including: • Identification of grounds through analysis of spatial pattern in catch and effort ... the initial exploration of the C2 fine scale catch and effort data held by CCAMLR for the fishery in ...
Meeting Document : WG-FSA-07/44 : Auteur(s): J.P. McKinlay, D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
-
On the problem of by-catch of juvenile fish in krill fishery
Abstract: Studies of by-catch of juvenile fish in krill catches by research vessels were ... eulepidotus. Other species were observed in catches only occasionally and in small numbers. By-catch of ... juvenile fish was highest in Prydz Bay and Fram Bank areas. By-catch of juvenile fish in Isaacs-Kidd trawl ... was usually less than 50 fish per 30 min trawling. By-catch in commercial trawls was from 114 to 1 x ...
Meeting Document : WG-FSA-92/10 : Auteur(s): C.A. Pankratov and E.A. Pakhomov (Ukraine)
-
Fish by-catch in the krill fishery: 2016 update
Abstract: Data on fish bycatch in the krill from Commercial catch data (95 513 hauls) and CCAMLR ... -catch in a 300 000 t krill fishery would be 370 t, comprising 40% Champsocephalus gunnari and 30 ... modal size class of <10 cm. The fish species taken as by-catch in the krill fishery are the same ... confidence intervals around the frequency of occurrence data, as well as an increase in the fish by-catch ...
Meeting Document : WG-FSA-16/04 : Auteur(s): CCAMLR Secretariat
-
Integrated analysis of the by-catch data in the Ross Sea toothfish fishery
-2015 are considered. The analysis was focused on CPUE toothfish (kg/1000 hooks), by-catch CPUE (kg/1000 ... hooks) and normalized target catch ratio. There was evidence of distinct differences in the mean (and ... distribution) in the CPUE toothfish and the by-catch CPUE. Our analysis also show that target catch ratios ... target catch ratio in the Ross Sea. The observed influence of the longline gear types (Autoline ...
Meeting Document : WG-FSA-16/13 Rev. 1 : Auteur(s): S. Kasatkina
-
Some notes on by-catch of fishes caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (December 2000 to January 2001)
South Shetland Islands. Among 103 net hauls quantitatively examined, by-catch fishes were found in 41 ... % of hauls sampled for by-catch and 51.2% of those contained fish. P. antarcticum and C. gunnari were ... which constitute 63.4% of hauls contained by-catch fish and a high degree of spatotemporal dissociation ... among juveniles of different species was recognized. The by-catch data of the present survey provided a ...
Meeting Document : WG-EMM-01/50 : Auteur(s): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)
-
Preliminary results on by-catch of fishes caught by the fishery vessel Chiyo Maru No. 3 to the north of the South Shetland Islands (February to March, 1996)
Abstract: Investigations on by-catch of fishes captured during krill fishing by F/V Chiyo Maru No ... hauls examined, a total of 99 specimens belonging to 5 families and 14 species were captured as by-catch ... examined. Among by-catch fishes, juvenile Lepidonotothen larseni was the most abundant. This species was ... catch and 51±217 ind./h (0 to 3927 ind./h) trawling respectively. Bathypelagic fish species, Electrona ...
Meeting Document : WG-EMM-96/52 : Auteur(s): Ichii, T., Kawaguchi, S., Naganobu, M.