Résultats de la recherche
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Seabird interactions with longlining operations for Dissostichus eleginoides at the South Sandwich Islands and South Georgia
Paper Title: Seabird interactions with longlining operations for Dissostichus eleginoides at the ... South Sandwich Islands and South Georgia Abstract / Description: During seven days of operations ... involving the setting and hauling of longlines to catch the toothfish Dissostichus eleginoides around the ... increased rapidly after dawn and large numbers of Cape, giant and storm petrels and smaller numbers of white ... baited hooks, reduction of lights at night, and avoidance of the dumping of offal during longline ... on the starboard side of the vessel. Incoming fish were gaffed to prevent escape at the surface ... two hatches at the stern of the ship, where each coil was paid out after being weighted and tied to ... vicinity of the ship was recorded every 30 minutes. Almost all setting took place at night. The ship's ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 143–153 : Auteur(s): Ashford, J.R., J.P. Croxall, P.S. Rubilar and C.A. Moreno
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Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic Abstract ... fishing operations were recorded by CCAMLR observers between 2000 and 2002 at South Georgia (Subarea 48.3 ... ). Demersal longlines, targeting Patagonian toothfish (Dissostichus eleginoides), were deployed in depths of ... most abundant marine mammal observed in the vicinity of vessels when lines were being hauled, being ... the Ross Sea at 78°S (Rice, 1998). Killer whales generally feed on a wide range of prey, and in the ... observations of killer whales and sperm whales interacting with longline vessels at the Falkland/Malvinas ... fi sh- ery at South Georgia ranged in length from 44 to 59 m (mean = 53 m), with a GRT of between ... at random intervals in order to cover as much as possible of the period when lines were being ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 111–126 : Auteur(s): Purves, M.G., D.J. Agnew, E. Balguerías, C.A. Moreno and B. Watkins
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Length-at-age in juvenile Patagonian toothfish (Dissostichus eleginoides)
Paper Title: Length-at-age in juvenile Patagonian toothfish (Dissostichus eleginoides) Abstract ... / Description: We used the otoliths from a sample of Dissostichus eleginoides pre-recruits, whose length ... estimated from reading otoliths in a goodness-of-fit test. The majority of the otoliths (83.6%) were ... estimated to be from fish 1+ or 2+ years old, with mean total lengths of 32.5 cm and 41.3 cm respectively ... discussion at WG-FSA indicated that there was a clear need for validation of the age of individual fi sh ... survey. From the resulting age-at- length matrix the proportions of the population at each age ... , indicating a delay of several months in the formation of the opaque zone at South Georgia. If this is ... . At present, fi sh showing the fi rst translucent zone on the edge of the nucleus in January are con ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 1–10 : Auteur(s): Ashford, J., C. Jones, S. Bobko and I. Everson
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Marine debris and fishing gear associated with seabirds at sub-Antarctic Marion island, 1996/97 and 1997/98: in relation to longline fishing activity
Paper Title: Marine debris and fishing gear associated with seabirds at sub-Antarctic Marion ... debris found in association with seabirds at sub-Antarctic Marion Island for the period May 1996 to April ... and the 1997/98 field seasons. Fishing gear increased at a rate 10 times higher than 'other' ... been found in association with seabird nests at Marion Island. Fishery-related marine debris was found ... Island, CCAMLR INTRODUCTION Anthropogenic items floating at the surface of the sea are frequently ... (end of brood phase) and at monthly intervals between May and November/December (chick fledging ... nests at Marion lsland during this study (Table l), of which most (80%) were from the 1997/98 field ... . Prior to this report, only five reports existed of entanglements of seabirds at Marion Island since ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 85–96 : Auteur(s): Nel, D.C. and J.L. Nel
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Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2012/13
. Surveys of beached marine debris at Bird Island recorded a total of 145 and 134 items during winter (April ... marine debris. Entanglements of 13 Antarctic fur seals were observed at Bird Island, 15 at King Edward ... Point and zero at Signy Island and Goudier Island. In total, 85 items of marine debris were found in ... items). There were no reports of beached marine debris at Goudier Island, and no incidences of ...
Meeting Document : SC-CAMLR-XXXII/BG/05 : Auteur(s): Delegation of the United Kingdom
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Marine debris, entanglements and hydrocarbon soiling at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula, 2010/11
hydrocarbon soiling at this location during the reporting period. Surveys of beached marine debris at Bird ... (October 2010 to March 2011) respectively. Surveys at Signy Island recorded a total of 46 items during ... seasons at Bird Island, and the majority of items collected at Signy Island were wood/lumber ... . Entanglements of 27 Antarctic fur seals were observed at Bird Island, 12 at King Edward Point and four at Signy ...
Meeting Document : SC-CAMLR-XXX/BG/05 : Auteur(s): Delegation of the United Kingdom
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Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2013–2014
. Surveys of beached marine debris at Bird Island recorded a total of 252 and 376 items during winter (April ... marine debris. Entanglements of 14 Antarctic fur seals were observed at Bird Island, 9 at King Edward ... Point and zero at Signy Island and Goudier Island. In total, 88 items of marine debris were found in ... items). There were no reports of beached marine debris at Goudier Island, and one incidence of ...
Meeting Document : SC-CAMLR-XXXIII/BG/31 : Auteur(s): Delegation of the United Kingdom
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Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2016/17
to March 2017. Surveys of beached marine debris at Bird Island recorded a total of 244 items during ... items of beached debris were recorded at Signy Island (operational during summer only; 19 November 2016 ... to 22 March 2017). Sixty-four items of beached marine debris were recorded at Goudier Island ... . Entanglements of two Antarctic fur seals were observed at Bird Island and one at Signy Island, with three ...
Meeting Document : SC-CAMLR-XXXVI/BG/35 : Auteur(s): C. Waluda
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Mackerel icefish size and age at South Georgia and Shag Rocks
-frequency distribution of C. gunnari from 10 bottom trawl surveys at South Georgia and 9 at Shag Rocks ... 30.2 cm at South Georgia, and 18.6, 26.8 and 33.6 cm at Shag Rocks. The mean TL of each age-class of C ... as two different stocks. At South Georgia, the mean TL of age-class 1 decreased significantly between ... Abstract: Mackerel icefish, Champsocephalus gunnari (Lönnberg), at South Georgia and Shag Rocks ...
Meeting Document : WG-EMM-03/7 : Auteur(s): A.W. North (United Kingdom)
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Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2014–2015
to March 2015. Surveys of beached marine debris at Bird Island recorded a total of 289 and 275 items ... debris was recorded at Goudier Island. The first record of an entangled juvenile elephant seal was made ... at Bird Island. Entanglements of five Antarctic fur seals were observed at Bird Island, six at King ... , 132 items of marine debris were found in association with seabird colonies at Bird Island, most ...
Meeting Document : SC-CAMLR-XXXIV/BG/27 : Auteur(s): Delegation of the United Kingdom