Resultados de la búsqueda
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Development of the Southern Ocean Continuous Plankton Recorder survey
the 1925–1927 Discovery Expedition, and has been used successfully for 70 years to monitor plankton in ... serve as an important temporal reference for measuring long-term interannual variability and to help ... the North Sea and North Atlantic Ocean. Sixty-five years later the CPR as a Type II version returned ... from 60°E to 160°E, and south from about 48°S to the Antarctic coast—an area of more than 14 million ...
Meeting Document : WS-BSO-07/P4 : Autor(es): Hosie, G., M. Fukuchi and S. Kawaguchi
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Summary of the toothfish fishery and tagging program in the Ross Sea region (Subarea 88.1 and SSRUs 882A–B) through 2017/18
recaptured in 2018 was similar to that recaptured in previous years, with some fish recaptured after 14 years ... 2018 season. Despite 2018 being the first year of implementation of the Ross Sea region Marine ... slope area outside the MPA and south of 70°S. The median and 90 th percentile scaled length ... distributions showed no trend over time in the shelf, slope or northern areas. Patterns in the age frequency of ...
Meeting Document : WG-FSA-18/46 : Autor(es): S. Mormede and S. Parker
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Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.4
tonnes in 2019/20 and 2020/21 is consistent with the application of the CCAMLR harvest control rule ... Abstract: This paper describes an updated CASAL based assessment of Patagonian toothfish (D ... . eleginoides) in Subarea 48.4. The assessment data are updated with the observations for the 2017/18 season and ... fits. Stock projections indicate that the stock was at 67% of B 0 in 2018/19 and that a yield of 27 ...
Meeting Document : WG-FSA-2019/29 : Autor(es): T. Earl and E. MacLeod
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Annual variation in breeding biology of gentoo penguins, (Pygoscelis papua) at Bird Island, South Georgia
-3.4 days. Chicks creched when 25-30 days old. and this varied between years. possibly related to food ... supply and chick growth. Chicks left the colony for the first time between 75 and 85 days of age. The ... breeding population at Bird Island decreased by 20% and increased by 84% in successive years during the ... colonies, but for the whole island was very consistent over the three years: 0.45, 0.51 and 0.47. Overall ...
Meeting Document : WG-CEMP-90/38 : Autor(es): T.D. Williams (United Kingdom)
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Updated description of Patagonian toothfish (Dissostichus eleginoides) tagging and ageing programs in Division 58.5.2, 1997–2015
an additional 2559 estimates of age, for fish captured during the 2014 and 2015 Random Stratified ... previous maximum age estimate of 42 years. These data have been used to develop age length keys and a ... consistently above 80% since 2012. Vessels have also explored new fishing grounds over recent seasons ... the 2009/10-2013/14 seasons. These samples have detected fish as old as 51 years, increasing the ...
Meeting Document : WG-FSA-15/55 : Autor(es): D.C. Welsford, B. Farmer, T.D. Lamb, C. Péron, E. Woodcock and P.E. Ziegler (Australia)
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Contribution to the early life history of Channichthyidae from the Bransfield Strait and South Georgia
summer season. The results presented above, combined with the published data on the length and age of ... reported for C. gunnari. and Chaenocephalus. Available data on the age of the adult fish are not complete ... length in individual length/age groups /Fig. 11/, allow for the preliminary age-length determination ... Abstract: Age and early growth of 5 species of Channichthyidae / Champsocephalus gunnari ...
Meeting Document : CCAMLR/86/FA/08 : Autor(es): W. Ślósarczyk (Poland)
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Progress report on the scientific data compilation and analyses in support of the planning of a potential Marine Protected Area (MPA) east of the zero meridian in the Weddell Sea (Antarctica)
of Domain 4 for submission to the Commission in 3 to 4 years. Work on this project commenced with an ... Abstract: In recent years, CCAMLR Member States have undertaken substantial efforts to designate ... resources and marine biodiversity. During the Commission meeting of 2018, a proposal was made by Norway on ... an approach to facilitate progress on the further development of the Weddell Sea MPA (WSMPA) proposal ...
Meeting Document : SC-CAMLR-38/BG/14 : Autor(es): G. Griffith, T. Hatterman, A. Høgestøl, Y. Kasajima, A. Lowther, S. Moreau, B. Njaastad, P. Koubbi, C. von Quillfeldt, T. Brey, K. Teschke and O.A. Bergstad
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Preliminary assessment of mackerel icefish Champsocephalus gunnari in Subarea 48.3 – Based on the 2019 Groundfish Survey
tonnes) within Statistical Subarea 48.3. Projections for the 2019/20 and 2020/21 seasons applying the ... CCAMLR harvest control rule lead to catch limits (TAC) of 3,225 tonnes for 2019/20 and 2,132 tonnes for ... 2020/21. Author(s): T. Earl Title: Preliminary assessment of mackerel icefish Champsocephalus gunnari ... in Subarea 48.3 – Based on the 2019 Groundfish Survey Microsoft Word File: fsa-2019-30.docx Approval ...
Meeting Document : WG-FSA-2019/30 : Autor(es): T. Earl
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IDENTIFYING PATTERNS IN DIET OF MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) AT SOUTH GEORGIA USING BOOTSTRAPPED CONFIDENCE INTERVALS OF A DIETARY INDEX
confidence intervals for an index of relative importance (% IRIDC) of prey categories. Diet varied ... significantly between years and age classes but there was little regional difference in diet. In general diet ... following year (2005). This may have been a result of mortality of age 2+ and 3+ fish, which were more krill ... was followed by a large reduction (> 80%) in the estimated annual biomass of C. gunnari the ...
Meeting Document : WG-FSA-08/29 : Autor(es): C.E. Main, M.A. Collins, R. Mitchell and M. Belchier (UK)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands 1999/2000
seals wearing neck collars of man-made debris. One additional sighting was of an animal that had been ... second lowest recorded, a decrease of 20% compared to the previous year. At Bird Island, packaging bands ... Island,South Orkney Islands are reported for the 1999/2000 summer season. There were five sightingsof ... decreased (by 42%) since 1998/99. Over the past four years, fluctuations in the incidence of entanglement ...
Meeting Document : SC-CAMLR-XIX/BG/03 : Autor(es): Delegation of the United Kingdom