Resultados de la búsqueda
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Fish distribution and biomass in the Heard Island zone (Division 58.5.2)
Paper Title: Fish distribution and biomass in the Heard Island zone (Division 58.5.2) Abstract ... / Description: Division 58.5.2 encompasses the southern part of the Kerguelen plateau, and contains Heard ... Island and the McDonald Islands, an Australian Territory around which a 200-mile EEZ has been declared ... . In order to assess the potential of this area for commercial fishing, and to obtain some preliminary ... area, with the proviso that no stratum had less than five trawls. Within each stratum, trawl sites ... were chosen at random by computer, with the minimum distance between sites of 5 n miles. For each ... stratum a list of reserve sites was compiled by the same method, to be used if any of the primary sites ... analysed. where new sites had to be designated. Otherwise, For biological examination of the common one ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 1–20 : Autor(es): Williams, R. and W.K. de la Mare
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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
Paper Title: A statistical method for estimating the level of IUU fishing: application to CCAMLR ... -documented fisheries protection vessel (FPV) cruise data. The method takes explicit account of both ‘seen ... there must have been at least one encounter with an FPV in a year; no encounters in a year are ... interpreted as zero IUU fishing. For each IUU incident detected by the FPV, a theoretical maximum time over ... FPV desde 2001 hasta 2004, no se ha detectado ninguna actividad INDNR, dando como resultado capturas ... in 1999 and 2000 no further incidents were recorded (Table 1). The method used here requires there ... was no increased probability of detection of an IUU vessel with increased overlap between the FPV ... than from licensed vessels, which would tend to lower the encounter rate. Unfortunately there is no ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Autor(es): Agnew, D.J. and G.P. Kirkwood
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Krill population biology during the 1991 Chilean Antarctic krill fishery
them had a TL larger than 45 mm. The size frequency distribution showed no significant differences ... Paper Title: Krill population biology during the 1991 Chilean Antarctic krill fishery Abstract ... during krill fishing operations around the South Shetland Islands on board the Chilean factory vessel ... . The fishing ground was divided into two areas: Area A, north of the South Shetland Islands; and Area B ... distribution showed no significant differences between the three time periods. However, when the sex ... distribution of catches taken during the three different time periods showed no significant differences among ... WG-KRILL-92/33 KRILL POPULATION BIOLOGY DURING THE 1991 ... fishing operations around the South Shetland Islands on board the Chilean factory vessel Kirishima ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 223–235 : Autor(es): Mujica R., A., E. Acuña S. and A. Rivera O.
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By-catch, growth and feeding of Antarctic juvenile fish taken in krill (Euphausia superba Dana) fisheries in the South Georgia area, in 1992
superba Dana) fisheries in the South Georgia area, in 1992 Abstract / Description: This paper discusses ... an investigation of juvenile Antarctic fish caught during krill fishing by the FV Grigory Kovtun in ... the area around South Georgia from May to July 1992. Two species were predominant in the by-catches ... : Champsocephalus gunnari and Nototheniops larseni. The frequency of occurrence of juvenile fish was 18.2% when all ... ) recorded juvenile fish in all krill hauls in the Prydz Bay region (Table 2). During the period May to ... vessel because no commercial fishery had as yet commenced in the area (CCAMLR, 1991). On the other hand ... FEEDING OF ANTARCTIC JUVENILE FISH TAKEN IN KRILL (EUPHAUSIA SUPERBA DANA) FISHERIES IN THE SOUTH GEORGIA ... caught during krill fishing by the FV Grigoy Kovtun in the area around South Georgia from May to July ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 129–142 : Autor(es): Pakhomov, E.A. and S.A. Pankratov
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Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
no cetaceans were present. Catch rates were slightly higher in the presence of sperm whales and it is ... , although no quantitative studies have been carried out to measure their effectiveness. Apart from the ... with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic Abstract ... 169 to 2 150 m. Most effort was concentrated along the 1 000 m depth contour. Sperm whales were the ... during which no cetaceans were present. Catch rates were slightly higher in the presence of sperm ... and fi shers seem to indicate an increase in the levels of depredation. No reliable estimates exist ... depredation of catch to the presence of whales around the vessel with no apparent connection to fi shing ... , no mammals were observed in the vicinity of the vessel. The most abundant mammal species present ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 111–126 : Autor(es): Purves, M.G., D.J. Agnew, E. Balguerías, C.A. Moreno and B. Watkins
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Management and assessment options for the crab fishery around South Georgia
Paper Title: Management and assessment options for the crab fishery around South Georgia Abstract ... / Description: A new fishery for the lithodid crab, Paralomis spinosissima, started in Subarea 48.3 in 1992 ... . The fishery is also new to CCAMLR, both in terms of the species and fishing gear. We provide an ... overview of the management options for crab fisheries in general and then consider these options in the ... there a r e no t ime ser ies of commercial o r biological data. Apart from the data collected on ... with no parasitism. The way in which this affects recruitment is of course dependent on the ... : satellite transponders may, for example, be used to ensure that no fishing occurs in the refuges. The main ... the adult breeding and feeding grounds, ideally in adjacent sites (if this is compatible with the ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 193–202 : Autor(es): Basson, M. and D.D. Hoggarth
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Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea, Antarctica
Paper Title: Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea ... during the 2005/06 fishing season. These observers were placed on board three longline vessels targeting ... Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea (CCAMLR Subareas 88.1 and 88.2). Biological data ... , meristics, reproductive biology, diet and age estimation. All of the icefish sampled were identified as ... identificados como Chionobathyscus dewitti, y no hubo diferencias significativas en la proporción de sexos. Los ... reader to over-count relative to the first reader. Despite this finding, there was no significant sys ... the summer months. They observed spent females in early January and no females with maturing gonads ... BIOLOGICAL PARAMETERS FOR ICEFISH (CHIONOBATHYSCUS DEWITTI) IN THE ROSS SEA, ANTARCTICA C.P. Sutton ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 139–165 : Autor(es): Sutton, C.P., M.J. Manning, D.W. Stevens and P.M. Marriott
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
Paper Title: The ecosystem approach to managing fisheries: achieving conservation objectives for ... for the recovery of depleted populations in food webs supporting fisheries. This paper addresses the ... following general questions for applying the ecosystem approach to managing fisheries: (i) how might ... fisheries impact incidentally on an ecosystem, (ii) what should be the conservation objectives for predators ... has used the surplus production available from removal of the fished species then no other ... CCAMLR Scier~ce, Vol . 8 (2001): 37-64 THE ECOSYSTEM ... . A general approach is proposed for maintaining ecological relationships and providing for the ... recovery o f depleted populations i n food webs supporting fisheries. This paper addresses the ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Autor(es): Constable, A.J
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Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996
Paper Title: Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996 ... Abstract / Description: Finfish stocks in the Antarctic Peninsula region (Subarea 48.1) were exploited ... from 1978/79 to 1988/89, with most of the commercial harvesting taking place in the first two years of ... the fishery. Results of bottom trawl surveys conducted by Germany in the vicinity of Elephant Island ... same sampling sites, of the results being biased if the fish distribution shows a consistent year-to ... variation in the time needed to deploy the trawl, repeated sites were often only within 1 or 2 n miles of ... the original sites which balanced this effect to some extent. Furthermore, five to eight new ... locations were used during each of these surveys. Trawl sites of the 1996 survey are shown in Figure 1 ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 165–189 : Autor(es): Kock, K.-H
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A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
antarcticum) in the Ross Sea, Antarctica Abstract / Description: Antarctic silverfish (Pleuragramma ... antarcticum) were sampled during a trawl survey in the Ross Sea, Antarctica. Biological data, including fish ... otoliths were used to estimate ages and von Bertalanffy growth parameters. The species is relatively slow ... -growing with a moderate longevity; the maximum estimated age was 14.3 years. Von Bertalanffy parameters ... . These estimates are preliminary for two main reasons. First, no attempt has been made to validate the ... juvenile Antarctic silverfish off Terra Nova Bay (Ross Sea) during the summer of 1987/88. They also ... ) studied fish from the Cosmonaut Sea, Mawson Sea and Prydz Bay and calculated higher L∞ values and ... Hubold and Tomo (1989) and Gerasimchuk (1992), no length records could be found in the literature for ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 75–86 : Autor(es): Sutton, C.P. and P.L. Horn