Resultados de la búsqueda
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Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2
coordinates as those on previous R/V 039; Polarstern 039; surveys around Elephant Island (Kock & Jones ... the R/V 039; Yuzhmorgeologiya 039; (Jones & Kock, 2009). The cruise took place 6-27 January ... , 2018, primarily using a Hardbottom Snapper trawl (NET Systems, Inc.), previously used by the US AMLR ... marks registered in the echo sounders. One of the mid-water hauls identified a shoal of icefish (33.6 t ...
Meeting Document : WG-SAM-18/25 : Autor(es): Delegation of Chile
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Catch and effort data for the longline fishery in Subarea 48.3 – comparison of data reported to CCAMLR and data acquired by the UK between 1994 and 1996
around South Georgia were compared with data reported to CCAMLR and held in CCAMLR039;s longline ... to be missing from the CCAMLR database. One instance was identified of multiple hauls being submitted ... the two datasets, with many of the records for individual fields being identical. The number of ... in reporting bycatch and incidental mortality of birds. Author(s): Parkes, G.B., Pearce, J., Agnew ...
Meeting Document : WG-FSA-97/37 : Autor(es): Parkes, G.B., Pearce, J., Agnew, D.J.
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Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013
, 2001-2003, 2005-2007) of high values (µ > 30 g m-2) interspersed with years (1999-2000, 2004, 2009 ... . Hence, only the densest krill swarms detected in any one year drove the mean krill density estimates for ... the WCB in that year. WCB krill density (µ, mean density for the area) showed several years (1997-8 ... -2010) of low density (µ < 30 g m-2). This pattern showed three different periods, with fluctuations ...
Meeting Document : WG-EMM-14/P04 : Autor(es): S. Fielding, J. Watkins, P. Trathan et al.
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ABUNDANCE AND BIOLOGICAL INFORMATION ON TOOTHFISH IN DIVISION 58.4.4a & b BY SHINSEI MARU NO. 3 IN 2007/08 SEASON
, Shinsei Maru No. 3, from July 23 to September 27, 2008. The survey was undertaken in two Phases (Phase 1 ... % in numerical number and 90-96 % in weight to the total samples in SSRUs. Mean CPUE of toothfish in ... . Using a grid-based (10-minute latitude x 20-minute longitude) standard stratification method, mean CPUE ... this survey suggest the recovery of the stock since 2000/01. Author(s): K. Taki, T. Ichii, M. Kiyota ...
Meeting Document : WG-SAM-09/10 : Autor(es): K. Taki, T. Ichii, M. Kiyota and S. Kawahara (Japan)
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Temporal changes in sighting density indices of baleen whales in CCAMLR Subareas 48.1 and 48.2 based on three circumpolar sighting surveys
. CPI, CPII and CPIII data in Subarea 48.1 corresponded to years 1982/83, 1989/90 and 1993/94+1999/00 ... , respectively while that in Subarea 48.2 those corresponded to years 1981/82, 1986/87 and 1997/98, respectively ... are consistent with abundance estimates trend in humpback and Antarctic minke whales. Two issues are ... whales in the krill fishing/top predators feeding areas, and the impact on land-based predators. Author(s ...
Meeting Document : WG-EMM-16/26 : Autor(es): L.A. Pastene and T. Hakamada
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Criteria for aging the otoliths of Dissostichus eleginoides from South Georgia (Subarea 48.3) and an analysis of aging precision
readings by one observer and readings by two observers showed considerable inconsistency in aging both ... criteria to test. Two sets of criteria ate presented for aging the otoliths of Dissostichus eleginoides ... , one (C1) developed from previous work on the same species; the other (C2) adapted from generalized ... fish, but C2 indicated that captured fish may be mostly young, between 3-9 years old. The low precision ...
Meeting Document : WG-FSA-98/52 : Autor(es): J. Ashford (United Kingdom) and S. Wischniowski (Canada)
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Skate tagging in the Heard Island and McDonald Island (Division 58.5.2) toothfish fishery up to 2013
liberty of nearly eight years for one B. irrasa. Range of movement in depth was between-266 m and 280 m ... biology of these species. In the 13 years, over 12,000 skates have been tagged, with 112 recaptures, a ... recapture rate of less than one percent. The average distance between release and recapture for each of the ... in all directions. Most recaptures occurred within the first three years, with the maximum time at ...
Meeting Document : WG-FSA-13/22 : Autor(es): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Phytoplankton standing stocks in relation to krill in Antarctic waters
lies between latitude 56° to 61° 17039;s and longitude 30° to 40°E is characterized by cold surface ... , consisting of 32 diatoms and one dinoflagellete. Chaetoceros and Nitzschia spp. dominated the phytoplankton ... abundance could be possible sites for locating krill fisheries in the southern oceans. Author(s): X.N ...
Meeting Document : WG-EMM-98/34 : Autor(es): X.N. Verlecar, R. Vijayakumar, F. Saldhana and L. Martins (India)
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TOWARDS THE BALANCED STOCK ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
Abstract: Last two years two different approaches were used for stock assessment of Antarctic ... toothfish in the Ross Sea. One of them, the CASAL model, (Dunn & Hanchet, 2007; Bull et al., 2007) is ... available sources of information incorporated into the model. The second one, the TISVPA model (Vasilyev ... caught in 2007, driving the stock estimate down. Author(s): D. Vasilyev and K. Shust (Russia) Title ...
Meeting Document : WG-SAM-08/08 : Autor(es): D. Vasilyev and K. Shust (Russia)
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Spatial aggregation of harvesting in Subarea 48.1, in particular during the summer and close to the coast
detail, the fishing patterns in Subarea 48.1 during 2014/2015, showing that two areas of fishing ... aggregation took place, one in the Bransfield Strait and one in Hughes Bay, on the Danco Coast. The latter ... operated, collectively taking over 42,000 tonnes of krill from an area less than 30 km in diameter. The ... the end of the first two periods, but were increasing at the end of the third period when the Subarea ...
Meeting Document : WG-EMM-16/17 : Autor(es): P. Trathan and S. Hill