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Estimates of fish stock biomass around South Georgia in January/February 1985
Abstract / Description: Catch data from a bottom trawl survey in January/February 1985 have been used to ... N. guntheri and D. eleginoides stocks is difficult to assess. The by-catch species N. gibberifrons ... Abstract Catch data from a bottom trawl survey in January/February 1985 have been used to estimate stock ... and D. eleginoides stocks is difficult to assess. The by-catch species N. gibberifrons, Ch. aceratus ... paper catch data from a bottom trawl survey in January/February 1985 have been used to estimate stock ... Committee of CCAMLR 1982-1984 , 1: 227-327 CARROTHERS, P.J.G. (1981): Catch variability due to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 1-32 : Autor(es): Kock, K.-H.
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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 ... 10 myctophid species were identified in the by-catch samples, among which Krefftichthys anderssoni ... CCAMLR has expressed concerns about the impact of incidental catch in the krill fishery on some fish ... scientific data on fish by-catch. Japan ini- tiated on-board scientific observer activities in the 1989/90 ... fishing season to collect information on the incidental catch of juvenile fish (Kiyota and Iida, 2009 ... and abundance of myctophid fish were analysed using the fish by-catch samples collected by scientific ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 155–163 : Autor(es): Iwami, T., M. Naganobu, K. Taki and M. Kiyota
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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
. Catch rates were significantly lower when killer whales were present when compared to hauls during which ... no cetaceans were present. Catch rates were slightly higher in the presence of sperm whales and it is ... areas with lower catch rates, indications are that depredation by sperm whales can lead to a decrease in ... night. Catch rates were signifi cantly lower when killer whales were present when compared to hauls ... during which no cetaceans were present. Catch rates were slightly higher in the presence of sperm ... (toothfi sh). However, in areas with lower catch rates, indications are that depredation by sperm whales ... depredation of catch to the presence of whales around the vessel with no apparent connection to fi shing ...
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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A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
, closed areas around identified VMEs, open and closed management areas, by-catch limits for VME-forming ... around identified VMEs, open and closed management areas, by-catch limits for VME-forming organisms ... , paragraphs 4.135 and 4.136; SC-CAMLR, 2003b, paragraph 5.230): (i) avoidance (ii) mitigation (iii) catch ... area Shot Observe invertebrate by-catch and other specified data Designated Actions in FOP Report ... identified VMEs, open and closed management areas, by-catch limits for VME-forming organisms, gear ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Autor(es): Martin-Smith, K
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Analysis and modelling of the Soviet Southern Ocean krill fleet
process such as trawl duration, krill catch, or between trawl movement. Correlation analyses are presented ... catch and effort data provide about krill abundance or how easily can significant changes in krill ... of concentrations and a measure of the form catch/swarm/search-time to track swarm density within ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 127–235 : Autor(es): Mangel, M.
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Discrimination of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) using otolith morphometrics
otolith morphometrics Abstract / Description: That the predominant by-catch of grenadier by the toothfish ... -catch in the toothfish fishery and modelling suggests that they may be subject to predation release as ... Grenadiers (Family Macrouridae) are taken as by-catch in many of the toothfish fisheries in the Southern ... main by-catch in the fishery for Antarc- tic toothfish (Dissostichus mawsoni) in the Ross Sea region ... (CCAMLR Subareas 88.1 and 88.2) (Stevenson et al., 2014). A by-catch of 10 tonnes of grenadiers was ... ; Pinkerton and Bradford-Grieve, 2014; Mormede et al., 2014). Grenadier caught as by-catch and found in ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 15–28 : Autor(es): Pinkerton, M.H., C. Ó Maolagáin, J. Forman and P. Marriott
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Diet study of Antarctic toothfish caught in the east Antarctic based on stomach content, fatty acid and stable isotope analyses
isotope ratios were determined and compared with those of species caught as by-catch and collected from ... Channichthyidae caught as by-catch and several species collected from toothfish stomachs, including unidentified ... isotope ratios were determined and compared with those of species caught as by-catch and collected from ... toothfish can weaken lower trophic levels by removals of fish such as grenadiers and skates as by-catch ... similar to those of Channichthyidae caught as by-catch and several species collected from toothfish ... -catch. Stomach content samples were also collected from the sampled toothfish, these were preserved by ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 29–44 : Autor(es): Park, H.J. , I. Yeon, E. Han, Y.J. Lee, S.M. Hanchet, G.W. Baeck, Y. Kwon, S.G. Choi, D.W. Lee and C.K. Kang*
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Champsocephalus gunnari stock status in the South Georgia area
recruitment was taken at the lowest possible level for all these years (400 million specimens). Catch-per-unit ... and catch-per-unit-effort the present fishing regime does not lead to a decline in C. gunnari stock ... possible level for all these years (400 million specimens). Catch-per-unit-effort was also taken at the ... catch-per-unit-effort the present fishing regime does not lead to a decline in C. gunnari stock size ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 1-18 : Autor(es): Borodin, R. and P. Kochkin
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Estimating optimal observer coverage in the Antarctic krill fishery
by-catch. A partial coverage sampling program has been implemented in South Georgia since 2002 ... and between-haul variance was estimated. For krill mean length and larval fish by-catch rate, between ... larval fish by-catch. A partial coverage sampling program has been implemented in South Georgia since ... . Between-vessel and between-haul variance was estimated. For krill mean length and larval fish by-catch ... impact of the fishery on the krill population, and assess levels of by-catch. While the CCAMLR Scheme ... characteristics of krill, the by-catch in the fishery, particularly of larval fish, and the interac- tions with ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 139–154 : Autor(es): Agnew, D.J., P. Grove, T. Peatman, R. Burn and C.T.T. Edwards
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Location and intensity of the Soviet krill fishery in the Elephant Island area (South Shetland Islands), 1988/89
from 21 November 1988 to 25 March 1989. Although the total catch of the USSR in this season reached a ... highest catch-per-unit-effort was observed in January 1989 (7.7 tonnes per hour of trawling on average ... 1989. Although the total catch of the USSR in this season reached a maximum, for the last nine ... standard fishing vessel operated in the area over 40% of the time. The highest catch-per-unit- effort was ... krill fishery, including catch size and fishing area locations. The results of such analyses are ... towing speed; • haul depth; and • catch per haul. At present the database consists of information on ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 305–335 : Autor(es): Sushin, V.A. and A.S. Myskov