Search results
-
Progress towards a representative network of Southern Ocean protected areas
adoption of marine protected areas (MPAs) in national and international waters. While establishing MPAs in ... international waters has proven to be challenging in most of the world, national governments and the Commission ... for the Conservation of Marine Living Resources (CCAMLR) have succeeded in adopting multiple MPAs in ... the Southern Ocean. But are these MPAs representative of Southern Ocean biodiversity and ecosystems ...
Meeting Document : WS-SM-18/12 Rev. 1 : Author(s): C. Brooks, S. Chown, L. Douglass and B. Raymond
-
Update of the integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands (Division 58.5.2)
Abstract: The integrated assessment of Patagonian toothfish, Dissostichus eleginoides, for the ... inclusion of random stratified trawl survey (RSTS) abundance-at-age for 2010 and 2011 and conversion of 2008 ... and 2009 RSTS abundance-at-length to abundance-at-age. This was possible due to the large number of ... years. A series of standardised longline CPUE data from one of the longline grounds (or subfishery ...
Meeting Document : WG-FSA-11/24 : Author(s): S.G. Candy and D.C. Welsford (Australia)
-
Investigating emigration in stock assessment models of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H
Abstract: In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... the recaptures of tagged fish seen in the SSRU 88.2H fishery. The patterns showed a sharp decay rate ... of a cohort of tagged fish with few being recaptured after more than 3 years at liberty, a steepening ... of the decay rate over time, and a trend for increasing proportions of tagged fish caught over time ...
Meeting Document : WG-FSA-14/56 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
-
Diet of the cape petrel Daption capense during the post hatching period at Laurie Island, South Orkney Islands, Antarctica
Abstract: The diet of the Cape petrel Daption capense was investigated at Laurie Island, South ... contents of adults and regurgitate of chicks were sampled during the post-hatching period. The analysis ... in terms of frequency of occurrence. Fish prey formed near 64% by mass, with krill forming 35.8 ... . Amphipods were present in lower numbers and Cephalopods were only a very small portion of the diet of Cape ...
Meeting Document : WG-EMM-96/44 : Author(s): Montalti, D., Coria, N.R., Soave, G.E.
-
RAPID WARMING OF THE OCEAN AROUND SOUTH GEORGIA,SOUTHERN OCEAN, DURING THE 20TH CENTURY: FORCINGS, CHARACTERISTICS AND IMPLICATIONS FOR LOWER TROPHIC LEVELS
Abstract: The Southern Ocean is known to have warmed considerably during the second half of the ... 20th century but there are few locations with data before the 1950s. In addition, assessments of change ... in this region are hampered by the strong seasonal bias in sampling, with the vast majority of data ... collected during the austral summer. However, oceanographic measurements near South Georgia span most of the ...
Meeting Document : WG-EMM-08/P03 : Author(s): M.J. Whitehouse, M.P. Meredith, P. Rothery, A. Atkinson, P. Ward and R.E. Korb
-
A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula
Abstract: CCAMLR has been using the total catch of krill taken within 100 km of penguin colonies ... in their breeding season (December to March) as an index of overlap between the potential foraging ... areas of penguins and the distribution of the krill fishery in Subarea 48.1 (South Shetland Islands). As ... this index has proven unsuitable for a number of reasons, an alternative method of calculating an index ...
Meeting Document : WG-EMM-Stats-96/06 : Author(s): Phegan, G., Agnew, D.J.
-
Performance and geometry of the FP-120 trawl used during the UK 1993/94 fish stock assessment survey around South Georgia, Subarea 48.3
Abstract: Methods for the calculation of the horizontal opening (swept area) of a bottom trawl ... are discussed. Details of the Scanmar trawl monitoring equipment used for making in situ measurements ... of horizontal opening and headline height of the FP-1 20 trawl during the 1993/94 UK fish stock ... the calculation of horizontal opening from other, more easily obtained measurements, such as tow speed ...
Meeting Document : WG-FSA-94/23 : Author(s): G. Pilling and G. Parkes (United Kingdom)
-
Migrations of Antarctic fish Pseudochaenichthys georgianus Norman, 1939 in the Scotia Sea
Abstract: The material obtained between 1986 and 1991 has allowed to study the pattern of ... geographical and depth distribution of Pseudochaenichthys georgianus in the area of Scotia Arc Islands and on ... shelf of South Georgia Island. In the Antarctic colder waters in the Palmer Archipelago there were ... distribution of krill, which flow further to North and East with geostrophic currents. Following after them ...
Meeting Document : WG-FSA-12/68 Rev. 1 : Author(s): R. Traczyk (Poland)
-
Development of an algorithm designed to assess observer data quality and performance
Abstract: As part of the Secretariat task to ensure the quality and consistency of the data ... observers in their logbooks. A first version of the algorithm was tested on four randomly selected longline ... , as well as value inconsistencies through a limited set of logical tests. For each logbook inspected ... , a text report indicating the locations of faulty entries, a set of figures to display length and ...
Meeting Document : WG-SAM-13/40 : Author(s): Secretariat
-
A TALE OF TWO ISLANDS: CONTRASTING FORTUNES FOR SUBANTARCTIC SKUAS AT THE PRINCE EDWARD ISLANDS
Abstract: Subantarctic skuas Catharacta antarctica are key predators of burrowing petrels at sub ... -Antarctic islands, and can be used to monitor the health of burrowing petrel populations. A survey of skuas ... December 2001. Prince Edward Island (46 km2) remains free of introduced mammals, whereas Marion Island (290 ... km2) had a feral population of cats from the 1950s to 1980s, and still supports a large population of ...
Meeting Document : WG-EMM-10/P3 : Author(s): P.G. Ryan, P.A. Whittington and R.J.M. Crawford