Resultados de la búsqueda
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e-sc-xxi-a4.pdf
... recent years with winter fishing in Subarea 48.1 (WG-EMM-02/40 Rev. 1). It was uncertain whether these ... where the fishery obtains relatively reliable catches from one year to the next for a number of years ... catch in a given year and that the catch remains sufficiently high on average over a number of years ... . This was the second meeting with a hybrid agenda consisting of plenary and subgroup sessions to
application/pdf attached to:WG-EMM-02
Meeting Report : WG-EMM-02
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Informe preliminar sobre un viaje de pesca de merluza negra (Dissostichus eleginoides) del B/P Viarsa I, en el Océano Indico oriental (Área Estadística 57) – Abril–junio 2002
”, in the eastern Indian Ocean (FAO Statistical Area 57). The fishing trip was performed from the 13 of ... in the Grade 4 of gonadic maturity (C, D, E fishing zones). The A and B zones corresponded with the ... juvenile individuals of both sexes, with immature gonads. Rests of the same species (cannibalism), eel-cod ...
Meeting Document : WG-FSA-02/67 : Autor(es): H. Nion y O.D. Pin (Uruguay)
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Effect of line sink rate on albatross mortality in the Patagonian toothfish longline fishery
weights. Asymptotic sink rates (0.1-0.15 m/s) were achieved with 70 m intervals between 6.5 kg weights ... . Sink rates to 4 m depth were greatest with 35 m (0.44 m/s) and 50 m (0.33 m/s) between weights. For ... /s should greatly reduce the incidental take of albatrosses. For autoline vessels with gear and line ... -setting characteristics similar to the experimental vessel, this sink rate should be achievable with 4 kg ... -and-hook bearing 11.5 mm mother line with each end attached to 100 kg anchors, which were used to ... 1.2 m intervals along the mother line. Snood lines were 3 mm in diameter and 50 cm in length. Line ... hook line running parallel to the mother line. Hook lines bore 3 mm diameter, 0.7 m long snood lines ... . Each batch of 20 baskets was followed by 140 m of mother line with no branch lines attached; a 15-20 ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 133–150 : Autor(es): Robertson, G.G
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Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs-Kidd midwater trawl
krill biomass distribution (g/1 000 m 3) and its mean values were analysed by subarea (Subareas 48.1 ... the krill distribution field with high biomass of aggregations was observed in the western part of the ... area stretching from the Antarctic Peninsula to the eastern part of the South Orkneys area. The ... eastern part of the Scotia Sea may cause it to be absent from the South Georgia region regardless of ... part varies significantly. In the spring period (Figure 3) krill was virtually absent in the eastern ... eastern Scotia Sea and around South Georgia. In addition, a zone with krill biomass of 100-1 000 g / l ... approximately 110 days, i.e. from early November to the middle of February. In this regard, krill stock ... the krill distribution field with high biomass of aggregations was observed in the western part of ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 59–70 : Autor(es): Sushin, V.A. and K.E. Shulgovsky
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How trophic dynamics of adult Antarctic krill Euphausia superba responses to the condition of no ice in the water during the winter: a case study at South Georgia?
larger adults during early winter, but all adults could feed on similar food items during middle to late ... diet of adult krill with size and month during the winter season (June to September 2016) at the South ... N values between sexes of krill. Nitrogen isotope signatures suggested increasing carnivory with ...
Meeting Document : WG-EMM-2019/P04 : Autor(es): G.P. Zhu, H.T. Zhang, B. Deng and Q.Y. Yang
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Effects of variability in prey abundance on reproduction and foraging in chinstrap penguins (Pygoscelis antarctica)
, number of trips day–1, trip duration, number of dives trip–1 and dive rate) did not differ between years ... contend with large interannual fluctuations in prey availability and hence the cost of chick provisioning ... . Adults faced with this uncertainty can mechanistically balance parental care by adopting a strategy ... somewhere along the continuum between maintaining constant investment in foraging effort between years and ...
Meeting Document : WG-EMM-06/P6 : Autor(es): D.A. Croll, D.A. Demer, R.P. Hewitt, J.K. Jansen, M.E. Goebel and B.R. Tershy (USA)
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Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2006/07
lowest population size in the 10 years of census data. The number of diet samples containing fish was the ... highest ever and comparable to the first six years of the study. Unlike 2005-06, 18% of the gentoo penguin ... been declining for the past seven years and is at its lowest size in the 10 years of study. Chinstrap ... penguins ate mainly Antarctic krill, with a strong component of juvenile krill in their diet samples ...
Meeting Document : WG-EMM-07/P1 : Autor(es): R. Orben, S. Chisholm, A. Miller and W.Z. Trivelpiece (USA)
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An impact assessment framework for bottom fishing methods in the CAMLR Convention Area
). • Scenario 3: Floats on both ends lost; attempted recovery of lost gear (additional impact arises from ... . Effort was converted to units commensurate with the definition of impact footprints in Steps 2 and 3 ... ). New Zealand responded with an impact assessment to assess and quantify the likely impact of all New ... observers and vessel captains with extensive experience in the Ross Sea fishery), followed by extensive ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Autor(es): Sharp, B.R., S.J. Parker and N. Smith
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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
viewed with transmitted white light provided the clearest growth bands, but reading precision was low ... maximum age was 14 years, but this should be regarded as a conservative estimate of longevity because of ... respectively) produced estimated ages at maturity of 6–7 years for males and 8–11 years for females. These ... estimates are near the middle to upper end of the range of ages at maturity for skates worldwide. Author(s ...
Meeting Document : WG-FSA-04/29 : Autor(es): M.P. Francis and C. Ó Maolagáin (New Zealand)
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e-sc-xv-a5.pdf
... interaction with marine mammals. Low L5 (ii) Estimation of the number of hooks lost. 3.19 The Working ... conducted during the years 1984 to 1990 to assess one-year- old fish in the South Georgia and Shag Rocks ... hyadesi (Subarea 48.3) South Sandwich Islands (Subarea 48.4) Management Advice 3 Bouvet Island ... Fisheries CONSIDERATIONS OF ECOSYSTEM MANAGEMENT Interactions with WG-EMM Ecological Interactions
application/pdf attached to:WG-FSA-96
Meeting Report : WG-FSA-96