Search results
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A preliminary survey on breeding population of Adélie penguins at Cape Hallett in the Ross Sea region, Antarctica
Abstract: To develop a long-term ecological research program at a breeding site of Adélie ... out a preliminary survey on the population size and foraging trips of penguins at Cape Hallett. All ... aerial images using an unmanned aerial vehicle (UAV). The Cape Hallett colony was composed of ... approximately 700 sub-colonies occupied by 53,450 pairs of Adélie penguins in 2016. The foraging area of the ...
Meeting Document : WG-EMM-17/06 : Author(s): J.-H. Kim, H. Chung, W.Y. Lee, J.-W. Jung, M.C. Park, H.C. Shin and J.H. Kim
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Proposal to modify Conservation Measure 10-05 to establish transparency related to the total catch, transhipment and landing of toothfish
-CDS) and Conservation Measure 10-05 to better document the harvest and subsequent movements of ... vessel’s catch, as well as the amount and description of catch that is transshipped, and to capture ... multiple landings from a single harvest event. These improvements will enable the use of the e-CDS to track ... all Dissostichus spp. moving in trade back to the original harvest event and strengthen the ability of ...
Meeting Document : CCAMLR-XXXVI/24 : Author(s): Delegation of the USA
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Model-based, ecosystem risk assessments of MPA scenarios in Planning Domain 1
-Fishery Model to assess the risks of distributing catch limits for krill among small-scale management ... parameterizations of this model and conduct comparable risk assessments at smaller spatial scales. We use the method ... to assess some of the risks associated with two marine protected area (MPA) scenarios in Planning ... Argentina and Chile can, if desired, be improved by changing the sizes of the coastal buffers that define ...
Meeting Document : SC-CAMLR-XXXVI/BG/27 : Author(s): Delegation of the USA
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Some comments on the procedure of krill target strength assessment in echosurveys
Abstract: The impact of midwater trawl selectivity and catchability upon TS and TS 1 kg estimates ... . Application of the proposed method of mean weighted TS 1 kg estimation provides the biomass estimation ... : assessment of MSBS (MVBS) acoustic parameter distribution and krill length (weight) distribution in the study ... area. The latter requires to settle a complex of problems which allow to consider the trawl as a ...
Meeting Document : WG-EMM-98/21 : Author(s): S.M. Kasatkina (Russia)
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Marine Protected Areas in the Southern Ocean: update on current status of designated areas
Abstract: The development of a representative system of Antarctic marine protected areas (MPAs ... ) will require up to date information on the location, conservation aims and current status of protected ... (ASMAs) with both marine and terrestrial components (all located south of 60°S). A further 3 MPAs have so ... national jurisdictions. The geographic distribution and range of values being protected within these areas ...
Meeting Document : WS-MPA-11/19 : Author(s): S.M. Grant and P.N. Trathan (UK)
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Latitudinal variation of demersal fish assemblages in the western Ross Sea
°S. The distribution and abundance of 65 species collected in these surveys were examined to ... influence this. Species accumulation with sample frequency did not reach an asymptote, but the rate of new ... species was low suggesting data were adequate for describing the main components of the communities. Three ... broad assemblages were identified, in the southern Ross Sea (south of 74°S), central–northern Ross Sea ...
Meeting Document : WG-FSA-10/P03 : Author(s): M.R. Clark, M.R. Dunn, P.J. McMillan, M.H. Pinkerton, A. Stewart and S.M. Hanchet
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Measures to avoid bias in abundance estimates of Dissostichus spp. based on tag-recapture data
Abstract: Using the simplest form of an abundance estimator using tag-recapture data, the Lincoln ... against this bias, or to account for their effects in assessment models. In nearly all cases, examples of ... these biases. Estimates of post-capture mortality, tag detection rates and where it occurs, post-release ... depredation rates are a priority for new tagging programs and tag-based assessments. Due to the complexity of ...
Meeting Document : WG-SAM-12/23 : Author(s): D.C. Welsford and P.E. Ziegler (Australia)
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Characterisation of Muraenolepis species by-catch in the CCAMLR Convention Area
taxonomy of the group is needed and the number of species is uncertain. The few biological studies ... published suggest a relatively fast growing, semelparous, life history with a maximum age of 11 years. The ... estimate of K from the growth function for specimens assumed to be M. evseenkoi is much higher than for ... localised area of high catch rates occurs on Iselin Bank on Ross Sea slope. However, effects of fishing on ...
Meeting Document : WG-FSA-12/50 : Author(s): S. Parker, P. McMillan and P. Marriott (New Zealand)
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First global census of the Adélie penguin
Abstract: We report on the first global census of the Adélie Penguin (Pygoscelis adeliae ... ), achieved using a combination of ground counts and satellite imagery, and find a breeding population 53 ... report on 17 previously unknown colonies. We think 11 of these previously unknown colonies may be recent ... colonizations. These recent colonizations represent approximately 5% of the increase in known breeding ...
Meeting Document : WG-EMM-14/P05 : Author(s): H.J. Lynch and M.A. LaRue
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Identification of Amblyraja species in the longline fishery in Subarea 48.3 – CCAMLR
A.georgiana. Male A. sp.anon attain 50% maturity at a total length of 97cm, 13 cm greater than the length at ... 50% maturity for A.georgiana. Comparisons of colour and patternation were found to be consistent ... proportionally longer claspers to total length (2.77% difference between averages) than male A.sp.anon. 94% of ... captures of A.sp.anon were found at depths >1000m, where 85% of A.georgiana were caught in depths ...
Meeting Document : WG-FSA-02/54 : Author(s): M. Endicott (United Kingdom), L.J.V. Compagno (South Africa) and D.J. Agnew (United Kingdom)