Resultados de la búsqueda
-
Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2016/17
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... . This yield is higher than that specified for 2018 in CM 91-05, which states that “the total catch limit ... yield estimate is higher than the range specified in CM 91-05 for 2018, we therefore recommend that the ... catch limit be set at 3 157 tonnes for the 2018 and 2019 fishing seasons as per CM 91-05. Author(s): S ...
Meeting Document : WG-FSA-17/37 Rev. 1 : Autor(es): S. Mormede
-
Effects of recruitment variability and natural mortality on Generalised Yield Model projections and the CCAMLR Decision Rules for Antarctic krill
maintaining spawning biomasses above 20% of unfished biomass in more than 90% of the trials. As the values for ... Peninsula were used as proxies for recruitment variability. Simulations were run for 21 years with either no ... %, 20%, or 30% were added to the observed recruitment values. The CCAMLR "depletion" decision ... below 20% of its unfished value, meeting the CCAMLR "depletion" decision rule for recruitment ...
Meeting Document : WG-EMM-12/26 : Autor(es): D. Kinzey, G. Watters and C. Reiss (USA)
-
Preliminary assessment of long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island region (CCAMLR Division 58.5.2) based on a random stratified trawl survey in June 2005
58.5.2 in the vicinity of Heard Island in June 2005 to provide the information for an assessment of short ... for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods. It also ... growth parameters, including the use of a length-at-age vector, (iii) consideration of a vulnerability ... function for the future projections based on full selection of adult fish, and (iv) consequence of reducing ...
Meeting Document : WG-FSA-05/30 : Autor(es): A.J. Constable, T. Lamb and R. Williams (Australia)
-
Stock structure of Antarctic toothfish in Statistical Area 88 and implications for assessment and management
Abstract: We review the stock structure of Antarctic toothfish in Statistical Area 88 with the ... information from genetic studies, otolith microchemistry, stable isotopes, tagging, size and age structure ... biological stocks with limited mixing, especially at adult stages: a Ross Sea Region stock and an Amundsen ... the movement patterns and linkages of Antarctic toothfish in the 80–120 cm size range, throughout the ...
Meeting Document : WG-SAM-14/26 : Autor(es): S.J. Parker, S.M. Hanchet and P.L. Horn (New Zealand)
-
Proposal for a CCAMLR sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea
Subarea 88.1 and for nine years in Subarea 88.2. Associated research has led to an assessment of the ... Abstract: The exploratory fishery for Dissostichus spp. has now been operating for 14 years in ... operations, different vessels catch different length classes in different locations and in different years ... members develop a pre-recruit survey design. This paper develops a proposal for a CCAMLR sponsored ...
Meeting Document : WG-SAM-11/16 : Autor(es): S.M. Hanchet, S. Mormede, S.J. Parker and A. Dunn (New Zealand)
-
KRILL CONSUMPTION ESTIMATES FOR CRABEATER SEALS AT THE ANTARCTIC PENINSULA AND THE WESTERN WEDDELL SEA WITH SPECIAL REFERENCE TO SSMUS OF AREA 48.1
Antarctic Peninsula and western Weddell Sea region (90° to 30° W and 60° to 80° S), with special reference ... Abstract: We report annual Antarctic krill consumption estimates for crabeater seals in the ... bioenergetic model specifically developed for crabeater seals. Author(s): J. Forcada and P.N. Trathan (United ... Kingdom) Title: KRILL CONSUMPTION ESTIMATES FOR CRABEATER SEALS AT THE ANTARCTIC PENINSULA AND THE ...
Meeting Document : WG-EMM-09/21 : Autor(es): J. Forcada and P.N. Trathan (United Kingdom)
-
Joint research proposal for Dissostichus spp. in Subarea 88.3 by the Republic of Korea and New Zealand
proposal is for an additional 3 years covering the period 2018, 2019 and 2020. It is designed to build on ... (Parker et al. 2014). A 3-year research plan for this subarea was commenced by Korea in 2016 and new ... Abstract: Exploratory fishing for toothfish (Dissostichus spp.) in Subarea 88.3 began with a ... coordinated research proposal for presentation at WG-FSA-17 (WG-SAM-17, para 4.89). This joint research ...
Meeting Document : WG-FSA-17/40 : Autor(es): Delegations of the Republic of Korea and New Zealand
-
A preliminary model-based approach for estimating natural mortality of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region
constant across age and sex. In 2018, the independent review of the Ross Sea region D. mawsoni stock ... region stock assessment for Antarctic toothfish (Dissostichus mawsoni), M is assumed to be 0.13 y-1 and ... single value for males and females combined, with a uniform prior within the base model used in 2017 for ... simulations suggested that when the rate of natural mortality was assumed in an operating model, it was ...
Meeting Document : WG-SAM-2019/04 : Autor(es): B. Moore, S. Mormede, S. Parker and A. Dunn
-
Are krill recruitment indices from meso-scale survey representative for larger areas?
for age-one-old krill between scientific surveys from the northern Bellingshausen Sea, the Elephant ... classes of the age-one-group which occur in the samples of some years. Author(s): V. Siegel (Germany ... ) and two-year old (R2) krill differ substantially between years. However, results were in conformity ... surveys are representative for a wider region Generally the proportional recruitment indices for one (R1 ...
Meeting Document : WG-EMM-02/20 : Autor(es): V. Siegel (Germany), R.M. Ross and L.B. Quetin (USA)
-
Downward adjustments to local catch limits for the krill fishery in Subarea 48.1
strength and observations on breeding phenology for Adélie, chinstrap, and gentoo penguins. Mean age at ... Abstract: Here we compile four vignettes that, together, provide the basis for making downward ... adjustments to local catch limits for the krill fishery in Subarea 48.1. We use the term local catch limit to ... adjustments to local catch limits as one component of a larger strategy for feedback management (FBM) of the ...
Meeting Document : WG-EMM-16/46 : Autor(es): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries