Search results
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Seal mitigation measures on trawl vessels fishing for krill in CCAMLR Subarea 48.3
the season. These approaches, aimed at reducing seal entanglements, are similar to the two systems ... seal entanglements, are similar to the two systems implemented by Japanese vessels during the 2003 ... to cover the mouth of the net, one situated above the headrope and one below the groundrope respectively ... and groundrope connected to the warps. Two mesh planes, 44 m in width and 20 m in length, extended back ... into the body of the net by approximately 20 m and functioned similar to a giant ‘bag’ (Figure 3). Only two ... , 1 m in diameter codend 31 m 140 mm outside mesh 90 mm outside mesh 1.6 m mesh opening 80 m from wings ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 195–205 : Author(s): Hooper, J., J.M. Clark, C. Charman and D. Agnew
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Defining predator foraging ranges, illustrated using Adélie penguin foraging tracks from Mawson coast
likely to be foraged by predators from one year to the next, i.e. what is a predator’s feeding range ... to be foraged by predators from one year to the next, i.e. what is a predator’s feeding range taking ... Abstract: One step toward defining small-scale management units is to determine the areas most ... One step toward defining small-scale management units is to determine the areas most likely ...
Meeting Document : WG-EMM-02/41 : Author(s): I.R. Ball, A.J. Constable, J. Clarke and L. Emmerson (Australia)
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Diet and trophic niche of Macrourus spp. (Gadiformes, Macrouridae) in the Ross Sea region of the Southern Ocean
carnivorous. Other important prey were copepods (especially for fish with total length less than 30 cm), krill ... from the Ross Sea slope, Admiralty and Scott seamounts and two parts of the Pacific-Antarctic fracture ... for fish less than 30 cm), whereas sex, fatness and bottom depth were not significant. Author(s): M.H ... carnivorous. Other important prey were copepods (especially for fish with total length less than 30 cm), krill ...
Meeting Document : WG-EMM-12/P03 : Author(s): M.H. Pinkerton, J. Forman, D.W. Stevens, S.J. Bury and J. Brown
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Status and trends of Adelie penguin populations in the Ross Sea region
with earlier counts. Populations at nearly all rookeries have increased in size over the last 10–20 years ... . Populations at nearly all rookeries have increased in size over the last 10–20 years. Possible reasons ...
Meeting Document : WG-CEMP-92/23 : Author(s): R.H. Taylor, P.R. Wilson and B.W. Thomas (New Zealand)
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Beach litter accumulation at sub-Antarctic Marion Island – 1998/99
for the previous two years. Items originating from South America (Argentina in particular) were the most prevalent ... two years. Items originating from South America (Argentina in particular) were the most prevalent ... accunmulation for the year May 1998- April 1999. The amount of debris found in both annual and monthly ... during the annual survey were less than two months old. This strong seasonal effect and high turnover ...
Meeting Document : CCAMLR-XVIII/BG/22 : Author(s): Delegation of South Africa
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Current work towards estimating krill consumption by flying seabirds in CCAMLR Divisions 58.4.1 and 58.4.2
values. We have conducted tracking work on four species in two regions over two years to determine ... values. We have conducted tracking work on four species in two regions over two years to determine ...
Meeting Document : WG-EMM-16/67 : Author(s): L. Emmerson and C. Southwell
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The fish fauna of the Argentine Islands region (Antarctica; 12 UAE 2007–2008) and morphometrical changeability of Notothenia coriiceps (Richardson, 1844)
was subdominant in the previous years, but during our researches Notothenia rosii prevailed already. Biological ... and morphometrical analyses of two groups Notothenia coriiceps from the Meek-Penola Channel and near the west coast ... of Grotto Island are conducted. It is exposed, that these two groups of fish species divided, probably ... in the previous years, but during our researches Notothenia rosii prevailed already. Biological and morphometrical ...
Meeting Document : WG-FSA-12/P06 : Author(s): V.N. Trokhymets, V.A. Tymofyeyev and J.S. Perechrest
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Microincrement analysis in otoliths of Notothenia rossii fingerlings from the South Shetland Islands to estimate early life history timings and to validate annulus formation
showed two main periods of larval hatching separated by 5-6 months, one in late summer between February ... juveniles (age group 1+) hatched in July-August, entering in the cove the following year to spend the second ... showed two main periods of larval hatching separated by 5-6 months, one in late summer between February ... juveniles (age group 1+) hatched in July-August, entering in the cove the following year to spend the second ...
Meeting Document : WG-FSA-12/04 : Author(s): E. Barrera-Oro (Argentina) and M. La Mesa (Italy)
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Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2003–2004
to decline over the past five years, and is at its lowest size in the past seven years of study. While ... the gentoo breeding population increased slightly from last year, it is at its second lowest size in the past ... seven years. Chinstrap fledging success was higher during the 2003-04 breeding season than ... in the previous season, but lower than the average for the past seven years. Gentoo fledging success in 2003-04 ...
Meeting Document : WG-EMM-04/5 : Author(s): M. Antolos, A.K. Miller and W.Z. Trivelpiece (USA)
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Trends in bird and seal populations as indicators of a system shift in the Southern Ocean
Abstract: Although world oceans have been warming over the past 50 years, the impact on biotic ... over the past 50 years in the southern Indian Ocean, the increase starting in mid 1960s and stabilizing ... with a time lag of 2–9 years with temperatures, the population size of most seabirds and seals monitored ... on several breeding sites have decreased severely, whilst two species have increased at the same time ...
Meeting Document : WG-EMM-03/53 : Author(s): H. Weimerskirch, P. Inchausti, C. Guinet and C. Barbraud (France)