Resultados de la búsqueda
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Seal mitigation measures on trawl vessels fishing for krill in CCAMLR Subarea 48.3
Paper Title: Seal mitigation measures on trawl vessels fishing for krill in CCAMLR Subarea 48.3 ... methods employed for consideration by the ad hoc Working Group on Incidental Mortality Arising from ... Abstract / Description: At the 2004 meeting of the Working Group on Ecosystem Monitoring and Management ... (WG-EMM) in Siena, Italy, the UK reported on the by-catch of fur seals (Arctocephalus gazella) in the ... measures on trawl vessels fi shing for krill of a metal grid sloped at an angle to divert seals out ... krill A combination of an escape panel and a mesh barrier were used on the Nitaka Maru for the ... (2005): 195–205 195 SEAL MITIGATION MEASURES ON TRAWL VESSELS FISHING FOR KRILL IN CCAMLR SUBAREA ... scientifi c observers recorded mitigation measures for fur seal entanglements on krill vessels fi shing ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 195–205 : Autor(es): Hooper, J., J.M. Clark, C. Charman and D. Agnew
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Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill
decision criteria for at least two of the four recruitment vectors based on net sampling, regardless of how ... Paper Title: Effects of recruitment variability and natural mortality on generalised yield model ... projections and the CCAMLR decision rules for Antarctic krill Abstract / Description: The generalised yield ... model (GYM) was used by CCAMLR to establish the precautionary catch limit for the Antarctic krill ... while meeting CCAMLR decision criteria for at least two of the four recruitment vectors based on net ... added recruitment CVs for different years on the same scale, and helped account for differences in ... on P ro po rti on P ro po rti on P ro po rti on P ro po rti on 20 30 ... years and CCAMLR criteria calculated both for any given year in all years, and for only the final year ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Autor(es): Kinzey, D., G. Watters and C.S. Reiss
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A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
Paper Title: A risk-management framework for avoiding significant adverse impacts of bottom ... fishing gear on Vulnerable Marine Ecosystems Abstract / Description: CCAMLR adopted a new conservation ... measure in 2007 to ensure that significant adverse impacts of bottom fishing gear on Vulnerable Marine ... mortality on seabirds. Risk is broadly defined as the conditional probability of adverse impacts given ... -MANAGEMENT FRAMEWORK FOR AVOIDING SIGNIFICANT ADVERSE IMPACTS OF BOTTOM FISHING GEAR ON VULNERABLE ... framework for avoiding adverse impacts on VMEs Introduction Concern over the impacts of anthropogenic ... calling for RFMO/As to ensure that significant adverse impacts on VMEs are avoided (UNGA, 2007). CCAMLR ... Commission’s requirement for the Scientific Committee to develop scientific advice on managing bottom fishing ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Autor(es): Martin-Smith, K
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
and 4 animals, and have a relatively lower impact on catches, depressing CPUE by up to 20%. Sperm ... Paper Title: Estimating the impact of depredation by killer whales and sperm whales on longline ... fishing for toothfish (Dissostichus eleginoides) around South Georgia Abstract / Description: Observer ... data collected on longliners between 2003 and 2009 were analysed to look at the levels of depredation ... , mean pod size for killer whales actually dropped (significantly: individual t-tests on years 2003 and ... types were killer whales, sperm whales and both species. An overall correction factor for the year can ... over the years 2003 to 2006, followed by two years of low interaction, and finally another year of ... , followed by two years of low interaction, and finally another year of very high interaction in 20009. The ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Autor(es): Moir Clark, J. and D.J. Agnew
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Guidelines for the preparation of hydroacoustic survey reports on krill
Paper Title: Guidelines for the preparation of hydroacoustic survey reports on krill Abstract ... requirements for the preparation of reports of echometric surveys. An example is provided of the preparation of ... / Description: The proposed guidelines provide an opportunity to perform comparative analyses and checks of ... surveys. The unification of echometric survey data is aimed at increasing the effectiveness of research on ... peltca 19/X1 1980 20-29/X1 30/X1 31/X1 1980-10/ 1981 BbIXO,D; H3 CeBaCTOnOJIR. Pas60pKa 3KCne ... - 165 - SC-CAMLR-V/BG/37 GUIDELINES FOR THE ... PREPARATION OF HYDROACOUSTIC SURVEY REPORTS ON KRILL I.L.Kalikhman (U.S.S.R.) Abstract The proposed ... guidelines provide an opportunity to perform comparative analyses and checks of results obtained during ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 165-193 : Autor(es): Kalikhman, I.L.
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
Paper Title: A first attempt at an assessment of the Patagonian toothfish (Dissostichus ... eleginoides) resource in the Prince Edward Islands EEZ Abstract / Description: The history of the fishery for ... maximum of about 400 tonnes. Implications for surveillance are discussed. File: 02brandao-etal.pdf ... Total catches and CPUEs for these two years (Tables 2 and 3) are doubled to refl ect the effects of ... sensitivity tests are shown in Table 5, together with those for projections to 2010 and to 2020 under a ... 20 K B ) u nd er a fu tu re an nu al ca tc h of 4 00 t on ne s. T he 9 5% co ... Geoff Kirkwood are thanked for their comments on an earlier version of the paper. Financial support ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Autor(es): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller
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Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
Paper Title: Midwater trawl catchability as an aspect of a quantitative assessment of krill ... variable which depends on both the behavioural and distributional characteristics of the target species and ... catchability and krill distribution patterns. A comparative analysis of trawl catchability for commercial ... midwater trawls and small research trawls, in this case using an Isaacs-Kidd trawl, demonstrated the ... case using an Isaacs-Kidd trawl, demonstrated the futility of using the latter for trawl census ... for estimates of midwater trawl catchability on a number of fishing grounds in the Scotia Sea ... (Kasatkina, 1990). Calculations were based on data from a census survey using an Isaacs-Kidd trawl over a ... stratified by specific biomass. An assessment of catchability for the Isaacs-Kidd trawl operating between 0 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Autor(es): Kasatkina, S.M.
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Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of depredation levels
together. An extensive photo-identifi cation effort, primarily focussing on killer whales, allowed a total ... Exclusive Economic Zones: an assessment of depredation levels Abstract / Description: Interactions between ... longline fishing operations were reported by observers on board fishing vessels targeting Patagonian ... whales. These two species, alone or in co-occurrence with each other, were observed in 71% of the 1 308 ... together. An extensive photo-identifi cation effort, primarily focussing on killer whales, allowed a total ... identifi ed on 23 different occa- sions). 0 5 10 15 20 25 30 2 3 4 5 6 7 8 9 10 11 12 13 14 20 21 ... removal by marine mammals of fi sh caught on commercial longlines (depredation) indicate an increase in ... Patagonian tooth- fi sh fi shery in the Crozet Exclusive Economic Zone (EEZ). Two possible explanations for ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 67–82 : Autor(es): Roche, C., C. Guinet, N. Gasco and G. Duhamel
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An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)
an enormous amount of data on Southern Ocean (SO) zooplankton, mostly on their distribution with a ... overview is provided of the diversity and basic biology of SO zooplankton, with an emphasis on abundance ... for differences in the extent of identification of early larval stages. Likewise, the time of year ... Paper Title: An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and ... one-half of those above. A change in the view of SO copepods in the last 20 years has followed an ... provided of the diversity and basic biology of SO zooplankton, with an emphasis on abundance, distribution ... south. Those compiling data on numerical density (no. m–2 or no. m–3) need to allow for differences in ... euphausiids are long-lived, with E. superba having a life span of 5–7 years (Siegel, 1987). Two years has ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Autor(es): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie
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A simulation study of krill fishing by an individual Japanese trawler
krill trawler over a half-month period. It is based on an underlying krill distribution model whose ... Paper Title: A simulation study of krill fishing by an individual Japanese trawler Abstract ... / Description: A model is set up for the operation (which includes both searching and fishing) of a Japanese ... is compared with (and partially tuned to) statistics for a sample of data from the commercial fishery ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 1–108 : Autor(es): Butterworth, D.S.