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Seabird interactions with trawl and longline fisheries for Dissostichus eleginoides and Champsocephalus gunnari
) over the five seasons 1990/91 to 1994/95 and 4 800 tonnes from Division 58.5.1 (Kerguelen) during the ... ), 50 black- browed albatrosses (Diomedea melanophris), 50 Dominican gulls (Larus domninicanus) and 4 ... birds (usually less than 20 black-browed albatrosses and giant petrels) would sit near the chute and ... Georgia fishery. Although 72% of the birds killed in the longline fishery were white-chinned petrels ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 93–99 : Автор(ы): Williams, R. and D. Capdeville
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A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship in Subarea 48.3
5 days.after.1.June s( da ys .a fte r. 1. Ju ne ) 0 20 40 60 80 -2 -1 0 1 2 3 4 ... ne ) 0 20 40 60 80 -2 -1 0 1 2 3 4 fishing.depth.m s( fis hi ng .d ep th .m ) 600 800 ... id ae c au gh t i n th e fi sh er y (E nd ic ot t a nd A gn ew , 2 00 4) . T he ... in th e fi rs t 1 2 ho ur s, o ne o th er d ie d be tw ee n 12 a nd 2 4 ho ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 279–289 : Автор(ы): Agnew, D.J., J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones, G. Breedt, S. Du Plessis, J. Van Heerdon and G. Moreno
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Data on krill (Euphausia superba Dana) consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
Pogonophrine sp. 173 3.0 5 26 Bathyraja sp. 1798 1.5 20 539 T. nicolai 925 3.75 4 139 Notothenia ... , between 60 and 800E, area approximately 107 km2) was calculated from census trawl and acoustic surveys ... ) seasonal krill production is 4 x 106 tonnes; 2.5 x 106 tonnes for the Sodruzhestva Sea and 1.5 x 106 ... mesh size in the codend - 20 mm). Trawl mouth openings ranged from 800 to 2 338 m2; trawling speed ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 305–319 : Автор(ы): Pakhomov, Y.A., V.A. Bibik and V.V. Gerasimchuk
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Comparison of age readings from scales and otoliths of the Patagonian toothfish (Dissostichus eleginoides) from South Georgia
AND METHODS Age 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2 1 22 23 ... 20 0 0 0 0 0 0 m w m N Age l 4 20 Age l 5 20 O o o o o o o o o 0 0 0 0 0 0 m w ... soaked for one week in a solution of 20% alcohol (96"), 5% glycerin, a few drops of domestic detergent ... 981.05 3 579.58 4 104.30 4 565.27 5 120.28 5 655.08 6 002.62 6 325.08 6 707.18 7 069.12 7 ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 191–203 : Автор(ы): Cassia, M.C
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Assessments of the stocks of Notothenia rossii marmorata and Champsocephalus gunnari in the South Georgia area
the start of fishing. - 4 - 1.2 Age-specific Natural Mortality and Catchability Rates Figure ... biomass. The data indicate a strong dependence of gross recruitment on stock size, since a 20-fold ... this. The corresponding expected recovery times to 50% of initial biomass are approximately 20 and ... in Table 4, trajectories of recruited stock biomass are shown in Figures Sa-b. In this case, the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 1-21 : Автор(ы): Cooke, J.G.
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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
) reported that between 1 and 12 tooth- fi sh, ranging in size from 70 to 130 cm (4 to 20 kg) were found in ... 1 6 10 2002 4 4 2 1 11 15 EG SR 38 36 35 NG 1 000 m 3 000 m SG 200 m 42 40° West4453 54 ... 25 13.4 3 146 17.5 6–8 34 18.3 4–5 56 6.3 9–10 20 10.8 6–10 7 0.8 11–15 21 11.3 >10 1 0.1 16 ... –20 12 6.5 21–30 2 1.1 Table 4: The times at which interactions occurred with killer whales ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 111–126 : Автор(ы): Purves, M.G., D.J. Agnew, E. Balguerías, C.A. Moreno and B. Watkins
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Size at sexual maturity of Patagonian toothfish (Dissostichus eleginoides)
leading to an enlarged ovary of about 20% of the fish total mass. Spawning occurs in the period July to ... fiducial limits (= confidence limits) for standard logistic curves (see Finney, 1978, Chapter 4 for ... language of bioassay - see Finney, 1978, Chapter 20) to cater for the situation where a proportion (propn ... virgin or resting 3. Developing 4. Gravid 5. Spent Male: 1. Immature 2. Developing or ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 37–46 : Автор(ы): Everson, I. and A.W. Murray
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Research currently being undertaken by the Republic of South Africa on "dependent and related species" within the Antarctic marine ecosystem
durins 1!J73 and indicate a decrease of 5 to 11 Per cent Per !:lear in the flOPulations at Mari on (4 ... behieen latitude-s 40 and 60 de9rees S. This vast oceanic area is ver~ Productive - e-s;pecia11Y in the ... the island's vesetation, - 72. - Suano and other ferti I izin~ Products Promoting luxu1·iant ... c.t·us'4.acean exo'llkele'tans, OtcJ iths1 c.alr::are-ou-s stT'wct.ure!> found iti. the i11fle!'1" ear ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 59-77 : Автор(ы): South Africa
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CCAMLR ecosystem monitoring and management: future work
scale during the early stages of the fi shery and to 0 1 2 3 0 1 2 3 D en si ty 0 10 20 30 ... 40 50 60 Year 0 1 2 3 (a) (b) (c) Figure 2: Potential effects of fi shing on krill density ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 233–253 : Автор(ы): Constable, A.J
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Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica
unfished areas in the South Atlantic and suggested that bottom trawling in the past 20 years has had a ... headline length was 35 m. Mesh size was 15 cm in the front panels and 5 cm in the codend liner. Ground ... wide with a headline height of 4 to 5 m. Nets were towed for a standard haul duration on the bottom of ... fish were mostly less than 20 kg. Catches in the centre of the bay (stations L, M and N) were very low ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 403–410 : Автор(ы): Constable, A.J.
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