Search results
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Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates
and 88.2 by vessel for a space window of 20 km and time window of one season (Figure 2). The amount ... variability of the recapture rates are accounted for in the calculation by using CCAMLR Science, Vol. 20 ... on 1 December each year, and ends when the quota has been fully caught which, in recent years, has been ... all fishing events of the case that were matched with at least one control event, the ratio ... an integrated stock assessment. Previous attempts to assess the relative reliability of vessels in ... detecting tagged fish have been inconclusive due to low numbers of recaptures after controlling for spatial ... controlling for spatial and temporal variables using a case-control study design, and uses this method to ... develop relative indices for detection rate performance for vessels involved in the Antarctic toothfish ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Author(s): Mormede, S. and A. Dunn
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Update of the activities of the SCAR krill action group (SKAG) since last year’s WG-EMM
(SKAG) since last year’s WG-EMM Approval: Approved Secretariat Workflow Status: Content Approved ... Update of the activities of the SCAR krill action group (SKAG) since last year’s WG-EMM ...
Meeting Document : WG-EMM-2019/12 Rev. 1 : Author(s): B. Meyer and C. Reiss
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Age-at-length of Patagonian toothfish from the Falkland/Malvinas Islands
crenellations. Two readers undertook one reading each of the sections, estimating age using criteria agreed ... grinding machine to reveal a transverse plane through the otolith nucleus and between crenellations. Two ... readers undertook one reading each of the sections, estimating age using criteria agreed at the CCAMLR ...
Meeting Document : WG-FSA-02/74 : Author(s): J. Ashford, A. Arkhipkin, C. Jones and S. Bobko
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Fishery report: Dissostichus eleginoides Kerguelen Islands (Division 58.5.1)
throughout the year except during February for the last two seasons. Table 1: Catch history ... (solid line) in the Kerguelen Islands EEZ based on the GLM (year: 1 July–30 June). 7. Historical CPUE ... (solid line) in the Kerguelen Islands EEZ based on the GLM (year: 1 July–30 June). 8. Haul-by-haul ... at the end of 1996 and in some years IUU catches exceeded legal catches, resulting in a high level of total ...
Document : Site Section: Publications
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Trophic relations of the cephalopod Martialia hyadesi (Teuthoidea: Ommastrephidae) at the Antarctic Polar Front, Scotia Sea
Abstract: Samples of the squid, Martialia hyadesi, were collected aboard two Japanese squid ... Samples of the squid, Martialia hyadesi, were collected aboard two Japanese squid jigging vessels ...
Meeting Document : SC-CAMLR-XI/BG/11 : Author(s): Delegation of United Kingdom
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Revised reports on abundance and biological information of toothfish in Division 58.4.4 a & b by Shinsei maru No. 3 in 2012/13 season
higher in 2011 but showed no clear tendencies with the years in SSRU C. Fish in single-hooked and good ... that larger fish > 140 cm are more damaged than smaller ones, which is consistent with the results in 2011 ... /12 season. The possible maximum tagging rate was calculated to be 30.1 fish per tonnes and 23.5 fish ... higher in 2011 but showed no clear tendencies with the years in SSRU C. Fish in single-hooked and good ...
Meeting Document : WG-FSA-13/34 : Author(s): K. Taki, T. Ichii, T. Iwami and M. Kiyota (Japan)
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Age-at-length of Patagonian toothfish from South Georgia
given by the CCAMLR Otolith Network for toothfish from South Georgia. Age estimates during the first two ... Network for toothfish from South Georgia. Age estimates during the first two readings were significantly ...
Meeting Document : WG-FSA-02/75 : Author(s): J. Ashford, M. Belchier, C. Jones and S. Bobko
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The toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2016/17
at liberty and therefore the number of recaptures of tagged fish is likely to increase in the 2018 season ... are precautionary and we recommend extending the current research plan for 2018 season. No validated age data ... at liberty and therefore the number of recaptures of tagged fish is likely to increase in the 2018 season ... are precautionary and we recommend extending the current research plan for 2018 season. No validated age data ...
Meeting Document : WG-FSA-17/39 : Author(s): S. Parker and S. Mormede
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Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica
that bottom trawling in the past 20 years has had a considerable effect on the community structure ... B 3aJIHBe TIpIO~3 B 1990/91 r. C06paHHble ~aHHble HCnOJIb- 30BaJIHCb B H3Y'-leHHH nOTeH~HaJIbHOrO B03 ... integridad. 1. INTRODUCTION In the last 10 years, a number of studies have highlighted the impacts ... for a standard haul duration on the bottom of 30 minutes at 3 knots. The sweeps (25 mm diameter combination rope ... Paper Title: Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica ... Abstract / Description: This paper presents data on benthos retrieved in bottom trawls during a survey of ... examine a potential impact of bottom trawling on benthic communities in this region. The benthos was ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 403–410 : Author(s): Constable, A.J.
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Admiralty Bay (South Shetland Islands) as a model area for the long-term marine monitoring program – reasons and opportunities
to these problems because of the availability of rich data collected two and three decades ago, as well ... to these problems because of the availability of rich data collected two and three decades ago, as well ...
Meeting Document : WG-EMM-14/59 : Author(s): A. Panasiuk-Chodnicka, M. Korczak-Abshire, M.I. Żmijewska, K. Chwedorzewska, E. Szymczak, D. Burska, D. Pryputniewicz-Flis and K. Łukawska-Matuszewska (Poland)