Search results
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A summary of the commercial fishery for mackerel icefish Champsocephalus gunnari in Subarea 48.3 during the 1997/98 season
days between 25 December 1997 and 5 January 1998. The total catch of C. gunnari was 5.04 tonnes in 34 ... hauls. 67% of this catch was taken in just two hauls, confirming the patchy distribution of this species ... . Most of the catch was made up of fish between 22 and 30 cm long. Fish of this size range have ... previously been shown to be ages two and three. The catch of species other than C. gunnari amounted to only ...
Meeting Document : WG-FSA-98/53 : Author(s): G. Parkes, A. King and C. Jones (United Kingdom)
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Fishes caught along with the Antarctic krill in the vicinity of the South Shetland Islands during the austral summer months of 1994
Abstract: Observations on abundance of by-catch fishes were made during the austral summer months ... in 25 trawl catches (Table 1). Among by-catch fishes, juvenile Lepidonotothen larseni was the most ... of krill concentration (Figs. 1 and 2). The large incidental catch of fishes occurred in hauls with the low ... krill catch rates (Hauls. 36 and 47), and fishes are not found or rare within krill swarms of higher ...
Meeting Document : WG-Krill-94/25 : Author(s): T. Iwami (Japan)
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A brief exploitation of the stone crab Lithodes murrayi (Henderson) off south west Africa, 1979/80
November 1979 and April 1980, the fishery being terminated when the catch per unit effort fell ... to an uneconomic level. The extent of the L. murrayi grounds is examined on the basis of catch-per-unit-effort data ... was applied in this area of high concentration, accounting for almost 95 per cent by mass of the total catch ... . Although the catch rate declined, the mean size of exploitable crabs and of undersize crabs stayed ...
Meeting Document : WS-CRAB-93/21 : Author(s): R. Melville-Smith (South Africa)
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Krill distribution variability and fishery conditions within the local ground of Subarea 48.3 in June 1991
of different krill population modifications across the investigation area, the variation coefficient of catch ... of possible catch per fishing day (over 24 hours) is only V = 0.13. At considerable variations of krill ... distribution characteristics daily catch of vessels with higly efficient technological equipment appears ... , such as catch per an hour haul, is more sensitive. Author(s): Kasatkina, S.M. Title: Krill distribution ...
Meeting Document : WG-EMM-95/04 : Author(s): Kasatkina, S.M.
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Update of the integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands (Division 58.5.2)
updating total removals by sub-fishery and updating catch-at-age and catch-at-length proportions ... of otoliths collected and aged for each annual RSTS since 2008. Catch-at-length proportions for the commercial ... -estimated trends in catch rates. A change of substantial consequence from the 2009 integrated assessment ... of these values of M was estimated in CASAL but the value of 0.155 was estimated externally to CASAL from catch ...
Meeting Document : WG-FSA-11/24 : Author(s): S.G. Candy and D.C. Welsford (Australia)
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Distribution and abundance of skates (Bathyraja spp.) on the Kerguelen Plateau through the lens of the toothfish fisheries
as incidental by-catch in Patagonian toothfish (Dissostichus eleginoides) longline and trawl fisheries ... . Catch rates were modelled using zero-inflated GAMs and GLMs. The catch rates of skates from the trawl ... waters where longline fishing occurs have shown a slight decline in catch rate over the years of the HIMI ... of skate by-catch across both the HIMI and Kerguelen fisheries. Ongoing monitoring of species specific ...
Meeting Document : WG-FSA-16/P03 : Author(s): G.B. Nowara, P. Burch, N. Gasco, D.C. Welsford, T.D. Lamb, C. Chazeau, G. Duhamel, P. Pruvost, S. Wotherspoon and S.G. Candy
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ESTIMATION OF IUU CATCHES OF TOOTHFISH INSIDE THE CONVENTION AREA DURING THE 2009/10 FISHING SEASON
Abstract: ABSTRACT The paper presents an estimate of IUU catches of toothfish during the 2009/10 ... 58.4.1 and 58.4.4a. Changes from version 1 are highlighted in bold. ESTIMATION OF IUU CATCHES ... prepared an estimate of IUU catches of Dissostichus spp. in the Convention Area for the 2009/10 season ... using the existing compliance-derived methodology. This methodology calculates total IUU catch levels ...
Meeting Document : WG-FSA-10/06 : Author(s): Secretariat
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Estimating future krill catches that meet the CCAMLR and alternative decision rules for FAO Subarea 48.1 using an integrated assessment model
that incorporates catch and length-composition data from the krill fishery with biomass indices and length ... ) and then applies these parameter values to future projections (2015-2034) at pre-specified levels of future catches ... . The model can compare predicted krill spawning biomass expected with projected future catches to the CCAMLR ... under projected future catch levels to spawning biomass expected without any fishing during the same ...
Meeting Document : WG-EMM-15/51 Rev. 1 : Author(s): D. Kinzey, G.M. Watters and C.S. Reiss (USA)
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Comparative studies on the biological and acoustical properties of krill aggregations (Euphausia superba Dana) samples during the XIII Italian Expedition to the Ross Sea (December 1997–January 1998)
° W in longitude. The aim of the paper is: (1) to compare the species/length composition of catch data and the one ... catch data;. The analysis of the biological parameters seems to indicate statistically significant ... of acoustic and catch data indicate that: (1) the acoustic discrimination between the two predominant species ... ) to the mean catch values; (3) The numerical abundance of the krill, estimated by the fluid sphere method ...
Meeting Document : WG-EMM-00/39 : Author(s): M. Azzali, J. Kalinoswki, G. Lanciani and I. Leonori (Italy)
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Krill fishery information
/99 caught 103318 t of krill, and preliminary information indicates that the catch in 1999/00 ... will exceed 82913 t. Krill caught in 1998/99 was taken in Subareas 48.1 (38% of total catch), 48.2 (49 ... %) and 48.3 (13%). As in recent past years, only grounds in Area 48 were fished. Catch and effort data ... 103318 t of krill, and preliminary information indicates that the catch in 1999/00 will exceed 82913 ...
Meeting Document : WG-EMM-00/25 : Author(s): Secretariat