Resultados de la búsqueda
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INTEGRATING COUNT EFFORT BY SEASONALLY CORRECTING ANIMAL POPULATION ESTIMATES (ICESCAPE): A METHOD FOR ESTIMATING ABUNDANCE AND ITS UNCERTAINTY FROM COUNT DATA USING ADÉLIE PENGUINS AS A CASE STUDY
standardising animal count data to a common reference point of breeding chronological for species showing ... Animal Population Estimates) is suite of routines that implements a general abundance estimator ... , Southwell 2004a). Within this resampling framework all measures of uncertainty associated with originally ... achieved by standardising counts to a common reference point of breeding chronology by applying an ...
Meeting Document : WG-EMM-09/20 : Autor(es): J. McKinlay, C. Southwell and R. Trebilco (Australia)
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SEABIRD: DRAFT USER MANUAL V1.00-2008/06/18
that allows a great deal of flexibility in specifying the population dynamics, parameter estimation ... to set up the input files, descriptions of the population dynamics and estimation methods, and how to ... generate outputs. It also contains a brief overview of the technical specifications of the software, and ... examples of models using SeaBird. SeaBird is designed for flexibility. It allows the user to structure the ...
Meeting Document : WG-SAM-08/P03 : Autor(es): D. Fu and R.I.C.C. Francis (New Zealand)
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Algunos aspectos biologicos relevantes a la explotacion de la merluza negra (Dissostichus eleginoides Smitt, 1898) en la zona economica exclusiva argentina y sector oceanico adyacente
Abstract: This work aims to the study of the distribution, size structure by depth, first ... maturity stage, weight/length, and length perimeter curve, of Patagonian toothfish (Dissostichus ... eleginoides) in the Argentine Sea, and atempts some explanation by a trophic analysis of such distribution ... . The distribution of Patagonian toothfish extends between of 36°30'S and 55°S from 80 to 2500 m ...
Meeting Document : WG-FSA-97/49 : Autor(es): Almeyda, S.M., Prenski, L.B.
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Zooplankton target strength: volumetric or areal dependence?
Abstract: Target strengths (TS) of various zooplankton were measured at 200 kHz, 420 kHz and 1 ... MHz and the dependence of these data on animal volume versus cross-sectional area was explored The 420 ... seawater. The data were compared to both empirical and theoretical models of reduced target strength (TS ... normalized by the square of the animal length) versus ka (the product of wave number and equivalent ...
Meeting Document : WG-Krill-94/13 : Autor(es): D.A. Demer and L.V. Martin (USA)
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Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
Abstract: The waters in the vicinity of the South Shetland Islands and Elephant Island were ... surveyed to investigate mechanisms for the formation of krill concentrations and to estimate acoustic ... biomass of krill in the 1990/91 austral summer. Main krill concentrations occurred in the shelf waters ... north of the islands, as usual. Tracks of drifting buoys (with curtain drogues at 30 m depth where krill ...
Meeting Document : WG-KRILL-91/22 : Autor(es): Delegation of Japan
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Ocean acidification and the Southern Ocean
, including the Southern Ocean. The relative undersaturation of CaCO3 in the Southern Ocean suggests that ... their projected trajectory. Aragonite is a form of calcium carbonate essential to shell forming ... organisms such as the pteropods that form the base of much of the Southern Ocean food chain. Orr et al (2005 ... assumes “business as usual”- emissions leading to 778 ppm of CO2 in the atmosphere by 2100- aragonite will ...
Meeting Document : CCAMLR-XXIX/BG/24 : Autor(es): ASOC Observer
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Preliminary plan for research and monitoring in the Ross Sea region, in association with spatial marine protection
Abstract: This document provides a preliminary version of a research and monitoring plan to ... accompany a proposal to CCAMLR for the establishment of a system of MPAs in the Ross Sea region in 2012. The ... protection objectives as identified in Sharp & Watters (2011). Within each of these eight objectives ... there are identified specific objectives each of which is associated with an explicit spatial ...
Meeting Document : WG-EMM-12/57 : Autor(es): M.H. Pinkerton and B. Sharp (New Zealand)
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Proposal for a research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.4
Abstract: Regarding the low levels of stocks of Dissostichus spp. and the high levels of IUU ... developments of the assessment of Dissostichus eleginoides using a CASAL model and a simple Petersen biomass ... tested 1/ base case model without IUU catch; 2/ including 22% of IUU catch supposed in Division 58.4.4; 3 ... estimate of total amount of IUU catch is 160 tons. With Petersen’s method, geometric mean stock abundance ...
Meeting Document : WG-SAM-14/18 : Autor(es): Delegation of France
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Propuesta para establecer un Área Marina Protegida en la región del Mar de Ross
Abstract: The delegations of New Zealand and the United States submit this revised proposal for ... the establishment of a marine protected area (MPA) in the Ross Sea Region (“Ross Sea Region Marine ... Protected Area”) by the Commission for the Conservation of Antarctic Marine Living Resources (Commission or ... vital ecosystem processes and areas of ecological significance; and promote scientific research ...
Meeting Document : CCAMLR-XXXIII/21 : Autor(es): Delegations of New Zealand and the USA
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Adélie penguin diet: a pilot study directly comparing data from stomach flushing with faecal DNA analysis
Abstract: The diet composition of key species of penguin is currently monitored as part of the ... /January) in 2014/15 and 2015/16. Each method produced a similar pattern of penguin diet, with a shift from ... almost exclusively krill in 2014/15 to a mixture of fish and krill in 2015/16. Stomach flushing allows ... allowed more comprehensive sampling and DNA markers identified higher taxonomic diversity of fish prey ...
Meeting Document : WG-EMM-18/29 : Autor(es): B. Deagle, J. McInnes, L. Emmerson, M. Dunn, S. Adlard and C. Waluda