Результаты поиска
-
The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
Paper Title: The ecosystem approach to managing fisheries: achieving conservation objectives for ... for the recovery of depleted populations in food webs supporting fisheries. This paper addresses the ... following general questions for applying the ecosystem approach to managing fisheries: (i) how might ... fisheries impact incidentally on an ecosystem, (ii) what should be the conservation objectives for predators ... has used the surplus production available from removal of the fished species then no other ... CCAMLR Scier~ce, Vol . 8 (2001): 37-64 THE ECOSYSTEM ... . A general approach is proposed for maintaining ecological relationships and providing for the ... recovery o f depleted populations i n food webs supporting fisheries. This paper addresses the ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Автор(ы): Constable, A.J
-
Demersal fish communities in the Ross Sea region of Antarctica: comparisons between video and trawl survey methods
essential for understanding the ecological effects of fisheries. Such estimates are conventionally derived ... . Using data collected during a survey of demersal fish communities in the Ross Sea region of Antarctica ... sampling methods; a large demersal fish trawl, a beam trawl, and a towed camera system. Twenty-three sites ... spanning the continental shelf, northern continental slope, abyssal plain, and two seamounts were sampled ...
Meeting Document : WG-FSA-12/51 : Автор(ы): D.A. Bowden, S.M. Hanchet and P.M. Marriott (New Zealand)
-
Review of CCAMLR activities on monitoring marine debris in the Convention Area
Database contains data from 11 sites, all within the Area 48 of which there are 3 sites that have data form ... Abstract: The current status of national surveys on monitoring of marine debris and their impact ... on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... , reached a peak in the period 1994–1996 at Bird Island and Signy Island has declined thereafter. The level ...
Meeting Document : SC-CAMLR-XXII/BG/25 : Автор(ы): Secretariat
-
Activity, seasonal site fidelity, and movements of Type-C killer whales between the Ross Sea, Antarctica and New Zealand
dives while in Terra Nova Bay (100-455 m) than on the northbound journey. A preliminary analysis of ... Ross Sea regions, including monitoring of the existing ASPA #173 Silverfish Bay and the establishment ... : Activity, seasonal site fidelity, and movements of Type-C killer whales between the Ross Sea, Antarctica ... and photo-identification), that TCKW undergo long-distance travel from the southern Ross Sea to New ...
Meeting Document : WG-EMM-15/52 : Автор(ы): R. Eisert (New Zealand), G. Lauriano, S. Panigada (Italy), E.N. Ovsyanikova, I.N. Visser, P.H. Ensor, R.J.C. Currey, B.R. Sharp and M.H. Pinkerton (New Zealand)
-
PHYSICAL CONTROLS ON CORAL COMMUNITIES ON THE GEORGE V LAND SLOPE: SOME WORKING HYPOTHESES
their likely distribution. The CEAMARC survey of 2007/2008 found these communities at sites on the upper ... rich benthos are those that cut the shelf break. Such canyons are known sites of high productivity in ... Abstract: Dense coral-sponge communities on the upper continental slope off George V Land have ... been identified as a Vulnerable Marine Ecosystem in the Antarctic. The challenge is now to understand ...
Meeting Document : WS-VME-09/04 : Автор(ы): De Santis, L., Riddle, M.J., Beaman, R.J., Post, A.L., O’Brien, P.E.
-
Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996
Paper Title: Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996 ... Abstract / Description: Finfish stocks in the Antarctic Peninsula region (Subarea 48.1) were exploited ... from 1978/79 to 1988/89, with most of the commercial harvesting taking place in the first two years of ... the fishery. Results of bottom trawl surveys conducted by Germany in the vicinity of Elephant Island ... same sampling sites, of the results being biased if the fish distribution shows a consistent year-to ... variation in the time needed to deploy the trawl, repeated sites were often only within 1 or 2 n miles of ... the original sites which balanced this effect to some extent. Furthermore, five to eight new ... locations were used during each of these surveys. Trawl sites of the 1996 survey are shown in Figure 1 ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 165–189 : Автор(ы): Kock, K.-H
-
Evidence of two stocks of Champsocephalus gunnari in the South Georgia region, CCAMLR fishing Area 48.3
Possession Bay, South Georgia during 19-20 January and off much of the north-east coast of South Georgia ... Abstract: In 1991, the 0 age-class of C. gunnari were sampled at Shag Rocks on 18 January, off ... between to 19 January to 19 February. The size- frequency of fish at Shag Rocks contained two modes of 31 ... -46mm and 55-87mm SL. however, off Possession Bay only one mode of 25-57mm SL was apparent. Fish in ...
Meeting Document : WG-FSA-94/16 : Автор(ы): A.W. North (United Kingdom)
-
Review of CCAMLR activities on monitoring marine debris in the Convention Area
debris for the first time from Marion Island (Subarea 58.7). There are 4 sites that have data for more ... Abstract: The current status of national surveys on monitoring of marine debris and their impact ... on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... Database contains data from 12 sites, most within Area 48. South Africa submitted data on beached marine ...
Meeting Document : SC-CAMLR-XXIV/BG/13 : Автор(ы): Secretariat
-
Review of CCAMLR activities on monitoring marine debris in the Convention Area
at King George Island for the fourth consecutive year. There are now 4 sites that have data for more ... Abstract: The current status of national surveys on monitoring of marine debris and their impact ... on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... Database contains data from 11 sites, all within Area 48. Uruguay submitted data on beached marine debris ...
Meeting Document : SC-CAMLR-XXIII/BG/11 : Автор(ы): Secretariat
-
Review of CCAMLR activities on monitoring marine debris in the Convention Area
Abstract: The current status of national surveys on monitoring of marine debris and their impact ... on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... Database contains data from 12 sites, most within Area 48. There are 4 sites that have data for more than 3 ... debris, principally packaging items, fishing gear, and wood items, reached a peak in the period 1994-1996 ...
Meeting Document : SC-CAMLR-XXV/BG/09 : Автор(ы): Secretariat
Страницы
- « первая
- ‹ предыдущая
- …
- 361
- 362
- 363
- 364
- 365
- 366
- 367
- 368
- 369
- …
- следующая ›
- последняя »