Search results
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Evaluation of some processing techniques applied to acoustic recordings from two krill fishing vessels
the automatic noise removal techniques we had at hand. We also evaluated the use of delineation and ... demonstrated through a CCAMLR proof of concept, but processing is in most cases essential before any use of the ... . Here we show examples of processing with a prerequisite that abundance and distribution of krill are ... our main interest, and that data of interest include both those collected during fishing operations ...
Meeting Document : SG-ASAM-17/03 : Author(s): X. Wang, G. Skaret and O.R. Godø
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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
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Improving CCAMLR’s monitoring and control of transhipments
monitoring and control of transshipments in 2014 [1], 2015 [2], and 2016 [3]. Despite robust consideration ... CCAMLR members with a strong resource to help address current gaps in the monitoring of transshipments ... . The United States looks forward to reviewing the report’s findings and, with due consideration of the ... ), working with other Members during the intersessional period on a proposal for consideration at CCAMLR ...
Meeting Document : CCAMLR-XXXVI/BG/17 : Author(s): Delegation of the USA
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AGE AND GROWTH OF SPINY ICEFISH, CHAENODRACO WILSONI REGAN, 1914, OFF JOINVILLE-D'URVILLE ISLANDS (ANTARCTIC PENINSULA)
Abstract: Age and growth of spiny icefish, Chaenodraco wilsoni, were investigated using counts of ... January 2007. A total of 218 specimens were selected for the study, consisting of 120 females and 98 males ... . The age of fish was estimated by counting annuli on transverse sections obtained by grinding and ... polishing whole otoliths embedded in epoxy resin in moulds. The precision of age estimates between readings ...
Meeting Document : WG-FSA-08/33 : Author(s): M. La Mesa, A. De Felice (Italy), C.D. Jones (USA) and K.-H. Kock (Germany)
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A proposal for the establishment of a Ross Sea Region Marine Protected Area
Abstract: The delegations of New Zealand and the United States propose the establishment by the ... Commission for the Conservation of Antarctic Marine Living Resources (Commission or CCAMLR) of a marine ... protected area (MPA) in the Ross Sea Region (“Ross Sea Region Marine Protected Area”). In recognition of ... the exceptional ecological value and scientific importance of the Ross Sea Region, our delegations ...
Meeting Document : CCAMLR-SM-II/04 : Author(s): Delegations of New Zealand and the USA (This paper introduces a revised version of the proposal contained in CCAMLR-XXXI/16 Rev. 1 of 29 October 2012)
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A comparison of Antarctic krill (Euphausia superba Dana) caught by nets and taken by macaroni penguins (Eudyptes chrysolophus Brandt): evidence for selection?
) breeding at Bird Island, South Georgia and concurrent net samples caught within the penguin foraging range ... , we examined the potential selection of different length and maturity stages of Antarctic krill ... probability of obtaining length-frequency distributions of krill different from that obtained from the net ... distributions that were statistically different from the original distribution of krill caught in nets on 76 out ...
Meeting Document : WG-EMM-96/08 : Author(s): Croxall, J.P., Hill, H.J., Trathan, P.N., Watkins, J.L.
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Age determination of the Antarctic fishes Champsocephalus gunnari and Notothenia rossii from South Georgia
Abstract: Foremost in the elucidation of accurate population dynamics parameters in fish is a ... necessity for an errorless estimation of age. Age determination can provide basic life history information ... used annual rhythmic deposition in calcified tissues as time marks but, due ts the lack of distinct ... periodicity in Antarctic hydrographic conditions, age determination of Antarctic fish has proven to be ...
Meeting Document : SC-CAMLR-VI/BG/43 : Author(s): R. Radtke (USA)
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
procedure recommended at the WG-FSA in 2013 in order to maximize the expectation of tag-recapture to the ... Abstract: The current season (2014/15) is the final one of the first three-season research which ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... available, SSRU 58.4.1 C may be also one of the important spawning grounds for D. mawsoni from the degrees ...
Meeting Document : WG-SAM-15/05 : Author(s): Delegation of Japan
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Demographic effects of extreme weather events: snow storms, breeding success, and population growth rate in a long-lived Antarctic seabird
heavy snow storms, and long term data on petrel productivity (i.e., number of chicks pro- duced) at the ... Abstract: Weather extremes are one important element of ongoing climate change, but their impacts ... are poorly understood because they are, by definition, rare events. If the frequency and severity of ... consequences of such events. In this study, we aimed to quantify the effects of snow storms on nest survival in ...
Meeting Document : WG-EMM-16/P13 : Author(s): S. Descamps, A. Tarroux, Ø. Varpe, N.G. Yoccoz, T. Tveraa and S.-H. Lorentsen
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Report of the WG-FSA Intersessional Subgroup on Sampling Catches from Longlines
estimated sufficiently precisely at 25% coverage to be reasonably sure of detecting increases to ... ; 2) the allocation of observer effort within longline haul and between hauls; and 3) the allocation ... of observer effort directed toward fishery target species versus ecological interactions. Both ... activity by sampling every day of hauling. Both methods essentially follow a multi-stage cluster sampling ...
Meeting Document : WG-FSA-02/52