Search results
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Mitigation of seabird captures during hauling in CCAMLR longline fisheries
hauling in CCAMLR longline fisheries. Haul captures were first recognised by CCAMLR as a problem as early ... exclusion devices (BEDs) placed around the hauling bay. Data collected by scientific observers since 2003 ... these two key functional characteristics into the specification of a BED to be deployed by longline ... captures were first recognised by CCAMLR as a problem as early as 1994/95 when steps were taken to reduce ... hauling bay. Data collected by scientific observers since 2003 suggest that there are two key aspects of ... into the specification of a BED to be deployed by longline vessels to reduce seabird captures during ... , dur- ing line setting has reduced the total number of dead seabirds in by-catch from over 5 000 in ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 155–162 : Author(s): Reid, E., B. Sullivan and J. Clark
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Distribution, biomass and characteristics of the Euphausia superba fishery around South Georgia (Subarea 48.3)
conducted by Soviet scientists in the area from 1974 to 1988 are summarized in this paper. The most ... important survey data and biomass assessments have been tabulated and illustrated by various survey maps. It ... biomass in the South Georgia area are extremely significant. Biomass may differ by as much as eight times ... differences in krill biomass are undoubtedly associated with the volume of krill brought here by waters of the ... by Soviet scientists in the area from 1974 to 1988 are summarized in this paper. The most important ... survey data and biomass assessments have been tabulated and illustrated by various survey maps. It was ... krill biomass in the South Georgia area are extremely significant. Biomass may differ by as much as ... here by waters of the Scotia Sea Secondary Front. More extensive studies incorporating trawl and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 123–147 : Author(s): Latogursky, V.I., R.R. Makarov and L.G. Maklygin
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Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
1990/91 a survey was conducted by RV Kaiyo Maru in the vicinity of the South Shetland Islands and ... concentration of krill and to estimate krill biomass in the area surveyed. Krill biomass estimation was done by ... means of hydroacoustics. Phytoplankton distribution was assessed by measuring surface concentrations of ... 54% lower than that observed in late January 1988. Information from studies of krill predators by US ... conducted by RV Kaiyo Maru in the vicinity of the South Shetland Islands and Elephant Island. The main ... estimate lain biomass in the area surveyed. Krin biomass estimation was done by means of hydroacoustics ... . Phytoplankton distribution was assessed by measuring surface concentrations of chlorophyll a. Water ... that observed in late January 1988. Information from studies of krill predators by US scientists also ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Author(s): Ichii, T., H. Ishii and M. Naganobu
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Annual changes in species composition and abundance of myctophid fish in the north of South Georgia (Subarea 48.3), Antarctica, during austral winters from 2002 to 2008
/ Description: Species composition and abundance of myctophid fish were analysed using the fish by-catch ... samples collected by scientific observers on board Japanese commercial krill fishing vessels in the area ... 10 myctophid species were identified in the by-catch samples, among which Krefftichthys anderssoni ... scientific data on fish by-catch. Japan ini- tiated on-board scientific observer activities in the 1989/90 ... krill trawl fishery. As pointed out by Collins et al. (2008), the eco- logical role of myctophid fish ... and abundance of myctophid fish were analysed using the fish by-catch samples collected by scientific ... identified in the by-catch samples, among which Krefftichthys anderssoni, Gymnoscopelus nicholsi and ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 155–163 : Author(s): Iwami, T., M. Naganobu, K. Taki and M. Kiyota
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A preliminary investigation of the possible effects of rhizocephalan parasitism on the management of the crab fishery around South Georgia
under the headings 'A Hypothetical Host-Parasite Model' and 'Results'. First, a general picture ... and South Georgia The information under the heading Island may be due to sampling variability ... levels of infection by a rhizocephalan barnacle have been found in the population of the crab Paralomis ... spinosissima, which has been harvested by a new fishery around South Georgia (Subarea 48.3) since 1992. One of ... possible implications of parasitism for management are investigated by considering a population model that ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 175–192 : Author(s): Basson, M
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Seal mitigation measures on trawl vessels fishing for krill in CCAMLR Subarea 48.3
(WG-EMM) in Siena, Italy, the UK reported on the by-catch of fur seals (Arctocephalus gazella) in the ... methods employed for consideration by the ad hoc Working Group on Incidental Mortality Arising from ... implemented by Japanese vessels during the 2003 krill fishing season around South Georgia (Japan Deep Sea ... Working Group on Ecosystem Monitoring and Management (WG-EMM) in Siena, Italy, the UK reported on the by ... requested that the UK provide further details of the methods employed for consideration by the ad hoc ... seal entanglements, are similar to the two systems implemented by Japanese vessels during the 2003 ... Management (WG-EMM) in Siena, Italy, the UK reported on the by-catch of fur seals (Arctocephalus gazella ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 195–205 : Author(s): Hooper, J., J.M. Clark, C. Charman and D. Agnew
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The use of patent databases to predict trends in the krill fishery
currently informed by data on annual catches and by CCAMLR’s annual notification procedure. There has been ... krill fishery. The Scientific Committee has recommended that the patent database be maintained by the ... soon increase to unprecedented levels (Schiermeier, 2010a). This concern has been prompted by ... Members participating in the fishery. Trends in the krill fishery are currently informed by data on ... annual catches and by CCAMLR’s annual notification procedure. There has been considerable discussion ... . The Scientific Committee has recommended that the patent database be maintained by the Secretariat so ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 135–144 : Author(s): Foster, J., S. Nicol and S. Kawaguchi
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Quantifying movement behaviour of vessels in the Antarctic krill fishery
/ Description: Ten years of recent fine-scale haul-by-haul krill data were used to characterise the behaviour ... operations by Japanese fishing vessels. There were differences between statistical areas with longer ... fishery to assist in interpreting the annual fishing patterns, which can best be collected by scientific ... -scale haul-by-haul krill data were used to characterise the behaviour of the krill fishery. Analysis of ... decreased as the catch level increased; this pattern was most obvious for operations by Japanese fishing ... interpreting the annual fishing patterns, which can best be collected by scientific observers. Résumé Dix ... been managed by CCAMLR since the 1980s (Everson, 2000). Although precau- tionary catch limits for the ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 131–148 : Author(s): Kawaguchi, S. and S.G. Candy
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Chilean krill fishery: analysis of the 1991 season
,llep}l{aHHe BbIJIOBa llHJIH no OTHorneHHIO K 06I.QeMY BbIJIOBY. PHCYHOK 2: 06I.QHH YJIOB 3a ,lIeHb ... paper summarises Chilean catch data for 1991. Special emphasis is given to the analysis of haul-by-haul ... fishing in Subarea 48.1 is particularly intense near CEMP sites. Other ways of using of haul-by-haul data ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Author(s): Marín, V.H., A. Mujica and P. Eberhard
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Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
approach is extended further so as to incorporate most of the amendments specified by the Third and Fourth ... . Three possible fishing seasons are considered. The model extensions requested by the Third Meeting make ... fishing mortality, as specified by the Fourth Meeting, results in marked reductions in the probabilities ... incorporate most of the amendments specified by the Third and Fourth Meetings of the Working Group on Krill ... considered. The model extensions requested by the Third Meeting make little difference to the results of ... imposition of an upper bound of 1.5 on the effective annual fishing mortality, as specified by the Fourth ... biomass drops below a fraction requested by the Fourth Meeting of WG-Krill D,,,, = 0.2 of its median ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Author(s): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew