Search results
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Scientific Abstracts 1992
period was slightly higher than in the previous year (48 compared to 30), it was substantially lower than ... of the fraction of the biomass estimate which is set as the catch for a 20-year period. Three alternative fishing ... the literature are used to show that for some years, at distances of between 20 and 60 km from predator colonies ... hyadesi, were collected aboard two Japanese squid jigging vessels carrying out commercial fishing trials ... all scientific papers presented for the consideration of the annual meetings of the CCAMLR Commission ... categories: (i) Scientific papers submitted for consideration of the meetings, but published elsewhere, for ... not intended for publication, which are listed as “unpublished”; and (iii) Supplementary scientific ... papers not intended for publication, for which the title alone is listed. All abstracts are listed in ...
Document : Site Section: Publications
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Scientific Observer's Manual – Finfish Fisheries – Version 2023
program beginning in the 2020 season and scheduled to run for two years (see section 14.1). Tagging ... /12/2018) Time hh:mm h = hour, m = minute. All times are recorded in 24 hour format (e.g. 21:20 ... The inner ear on each side has three otoliths, but two of these are usually very small and only one of each ... – 2015 Longline 2011 – 2015 Finfish Trawl 2011 – 2015 Krill Trawl Original 2019 Draft 01/10/2018 ... Manual for Finfish Fisheries contains guidance on standard tasks and requirements for observers as well ... as supplementary information to aid data collection requirements for toothfish (Dissostichus spp ...
Document : Site Section: Science
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Some thoughts on precautionary measures for the krill fishery
of the spawning biomass dropping below 20% of its pre-exploitation median level over a 20-year harvesting period ... is 10%; and the median krill escapement1 in the spawning biomass over a 20-year period is 75 ... that with a lifespan of five to seven years, at least two generations of krill have passed through the system since ... , the total number of krill leaving A in one year is also equal to @' . If M is the rate of natural mortality ... Paper Title: Some thoughts on precautionary measures for the krill fishery Abstract / Description ... : The concept of precautionary measures for krill is discussed. A precautionary catch limit, based on ... the potential yield model developed by the CCAMLR Scientific Committee's Working Group on Krill ... (WG-Krill) is discussed and it is concluded that such a method is appropriate in setting an overall ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 1–11 : Author(s): Everson, I. and W.K. de la Mare
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e-sc-xxviii-a9.pdf
... by the observers from the two trips approved by ICES (in ICES Subarea VI), together with gear details received ... ) for the continuous trawling method considerably improved in last 12 months, now allowing catch for every two-hour ... interval with position information. 2.6 Materials presented at last year’s and this year’s meetings of ad ... quantities of gear each year, which is likely to be the case for IUU gillnet operations in the Convention ... Technical Group agreed that a priority for its future work should be to advise on the development of an ... systems for obtaining green weight of krill on board the three Norwegian krill fishing vessels, Saga Sea ... allowing catch for every two-hour interval with position information. 2.6 Materials presented at last ... . An important question to address is whether total catch of IUU gillnetting can be estimated based on
application/pdf attached to:TASO-09Meeting Report : TASO-09
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A preliminary investigation of the possible effects of rhizocephalan parasitism on the management of the crab fishery around South Georgia
48.3) since 1992. One of the main effects of the parasite is to render infected animals sterile ... , which has been harvested by a new fishery around South Georgia (Subarea 48.3) since 1992. One ... of the main effects of the parasite is to render infected animals sterile. Parasitism can therefore reduce ... the main characteristics of the system. An age-based host-parasite model is constructed, incorporating two ... of healthy animals. Also recall that there is at least one year (i.e., age class) in which mature animals ... 48.3) since 1992. One of the main effects of the parasite is to render infected animals sterile ... that animals are most susceptible while still relatively small, and that the large crabs are the ones ... in the previous year. Once a crab is infected it remains infected. Male crabs are harvested at a size/age one ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 175–192 : Author(s): Basson, M
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Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1
the distribution of fishing effort. A comparison of CEMP parameters from two years with large differences in total ... two years with large differences in total catch in Subarea 48.1 suggests plausible local impacts ... restricted to the last 5 years, since this time period emphasizes the shift toward autumn and winter fishing ... the winter period, especially in the Bransfield Strait. Across years, predator distributions appeared ...
Meeting Document : WG-EMM-14/36 : Author(s): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)
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Fishery Report 2018: Dissostichus eleginoides Kerguelen Islands French EEZ (Division 58.5.1)
Description / Abstract: Fishery Report 2018: Dissostichus eleginoides Kerguelen Islands French ... Fishery Report 2018: Dissostichus eleginoides Kerguelen Islands French EEZ (Division 58.5.1) ... Fishery Report 2018: Dissostichus eleginoides Kerguelen Islands French EEZ (Division 58.5.1) ... , with one IUU-listed fishing vessel observed in the division. Two IUU-listed vessels were sighted during ... France indicate that IUU activities sometimes occurred here during each year from 2008 to 2012. One IUU ... -listed fishing vessel was sighted in Division 58.5.1 during 2010, two during 2012 and one during ... 20 2 5 2014 5 2015 9 3 1 2016 12 7 2017 19 1 2018 13 28. Up to the end of July 2018 ...
Document : Site Section: Publications
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Uncertainty in green weight estimates from Norwegian krill fishing vessels
an issue raised repeatedly within CCAMLR for a number of years, resulting in a modification to the C1 form ... raised repeatedly within CCAMLR for a number of years, resulting in a modification to the C1 form ... for Euphausia superba in the Antarctic. These vessels have in recent years contributed to 50-60 % of the total ... for Euphausia superba in the Antarctic. These vessels have in recent years contributed to 50-60 % of the total ...
Meeting Document : WG-EMM-13/41 : Author(s): G. Skaret and T. Knutsen (Norway)
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e-sc-xxxi-a05.pdf
... ’ (in years 2 and 3) and CASAL models (in years 4 and 5) mentioned in the paper. The Working Group also ... of two years of research fishing by Russia in Subarea 88.3, noting that there is no proposal to continue ... The Working Group considered WG-SAM-12/08, describing the results of two years of research fishing by Russia ... in subsequent years. 4.20 Dr Hanchet noted that the time series arising from this survey could be used ... to conduct a five-year research fishing program to achieve an estimate of stock status for ... implications for CPUE comparisons in particular locations between years, but the effect on tag-returns at this ... for WG-SAM in 2012 (SC-CAMLR-XXX, paragraphs 15.3 and 15.4): (i) a focus topic on tagging which ... • having observer coverage on all fishing vessels. The paper also made several recommendations for
application/pdf attached to:WG-SAM-12Meeting Report : WG-SAM-12
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Evaluation on the performance of echosounder on a fishing vessel using maximum seabed backscattering
and 2018) collected at a relatively fixed location with bottom depth around 200 m were used to evaluate ... analysis indicated that there was no significant difference among years at both frequencies. Author ... vessel to estimate Antarctic krill biomass. Acoustic data from three surveys (2015, 2016 and 2018 ... indicated that there was no significant difference among years at both frequencies. ...
Meeting Document : SG-ASAM-18/06 : Author(s): X. Wang, X. Yu and X. Zhao