Resultados de la búsqueda
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Integrated analysis of the by-catch data in the Ross Sea toothfish fishery
Abstract: The indices of exploratory toothfish fishery in the Ross Sea for the period of 2008 ... hooks) and normalized target catch ratio. There was evidence of distinct differences in the mean (and ... the flag States, should be considered as the primary cause of the observed variability in the ... target catch ratio in the Ross Sea. The observed influence of the longline gear types (Autoline ...
Meeting Document : WG-FSA-16/13 Rev. 1 : Autor(es): S. Kasatkina
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Spawning pattern and type of fecundity in notothenioids collected around the Elephant and South Orkney Islands
Abstract: The frequency distribution of oocytes diameter and relative fecundity (FR) of 4 ... counting were carried out using an image analyzer in sub-samples of ovaries at different stages of ... development, while the determination of RF was performed by a gravimetric method. Five were the main ... distinctive finding derived from this study: (i) in mature ovaries of all species immature oocytes or pre ...
Meeting Document : WG-FSA-16/22 : Autor(es): G. Plaza, P.M. Arana, F. Becker, A. Zavatteri and V.H. Castillo
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Results of the first winter longline survey to the northern Ross Sea region to investigate toothfish reproductive life history
Abstract: The first winter longline survey of Antarctic toothfish in the northern Ross Sea region ... was successfully completed during June and July 2016. A total of 55 longlines sets were completed in ... the 4 strata, and 55.2 t of Antarctic toothfish and 3.4 t of Patagonian toothfish were caught ... northwest of stratum 1. Gonad staging and gonadosomatic indices suggest that males in spawning condition may ...
Meeting Document : WG-FSA-16/37 : Autor(es): D. Stevens, D. Di Blasi and S. Parker
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Scientific contribution to the 2016 review of Conservation Measure 51-07: Part 1 – rationale, method and data for a risk assessment framework for distributing the krill trigger level
Conservation Measure 51-07, which is due to lapse at the end of the 2015/16 fishing season, and presented its ... discussions on this subject in paragraphs 2.201 to 2.244 of its WG report. WG-EMM recommended that work be ... land-based predators, of being inadvertently or disproportionally affected by the krill fishery. It ... also takes account of the desirability of different areas to the fishery and for management. The ...
Meeting Document : WG-FSA-16/47 Rev. 1 : Autor(es): A. Constable (on behalf of the e-group on CM 51-07 WG-EMM review)
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Dynamics of Antarctic krill in the Bransfield Strait during austral summer and autumn investigated using acoustic data from a fishing vessel
geographical areas of predictable high krill densities, and knowledge about trends and variability in krill ... fishing vessels might help provide such insight. In the present work, the dynamics of krill with regards ... integration assuming they constituted the bulk of krill biomass. Our results indicated a major shift in mid ... -April which included increased biomass, increased vertical distribution of swarms, a shift in diel ...
Meeting Document : WG-EMM-17/40 : Autor(es): X. Wang, G. Skaret, O.R. Godø and X. Zhao
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An approach to feedback management (FBM) of the krill fishery based on routine acoustic data collection and intermittent land-based predator studies
Abstract: The conservation measure regarding (or stipulating) the interim distribution of trigger ... level in the fishery of Antarctic krill in Subareas 48.1 through 48.4 (CM 51-07) has continuously been ... . As the trigger level lacks any form of relationship with the actual stock condition this approach is ... reported continuously during the fishing season as measure of the available prey field. This information ...
Meeting Document : SC-CAMLR-XXXVI/BG/20 : Autor(es): Delegations of Norway, China and Chile
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Joint research proposal for Dissostichus spp. in Subarea 88.3 by the Republic of Korea and New Zealand
abundance of Antarctic toothfish in Subarea 88.3 and the Scientific Committee has requested members complete ... structure of Antarctic toothfish in this subarea – and their relationship to the rest of the Pacific Sector ... previously been released on the slope, whilst also prospecting two of the northern seamount complexes and two ... boxes on the southern shelf, where little or no fishing has occurred. The main objective of the proposal ...
Meeting Document : WG-FSA-17/40 : Autor(es): Delegations of the Republic of Korea and New Zealand
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New Zealand submission for the trial of the CCAMLR observer training program accreditation scheme
presented in SC-CAMLR-XXX/08, and invited Members to participate in a trial of the initial review and ... technical peer review. These are described in Parts a–c of the proposed procedure for a CCAMLR observer ... -hoc TASO noted that in order to receive high-quality data from the CCAMLR Scheme of International ... consistent set of standards. In an effort to achieve this, the Scientific Committee began development of a ...
Meeting Document : WG-FSA-17/41 : Autor(es): A. Dunn, D. Kerrigan and A. McNabb
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Report on a random stratified trawl survey to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari conducted in the Heard Island region (Division 58.5.2), May–June 2007
Abstract: Since the commencement of commercial fishing in Australian waters on the Heard Island ... plateau in 1997 an annual random stratified trawl survey (RSTS) has been conducted to assess the stocks of ... survey had two main aims: • to assess the abundance of juvenile and adult Dissostichus eleginoides on the ... shallow and deep parts of the Heard Island Plateau; • to assess the abundance of Champsocephalus gunnari ...
Meeting Document : WG-FSA-07/46 : Autor(es): G.B. Nowara and T. Lamb (Australia)
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Distribution and diet of juvenile Patagonian toothfish on the South Georgia and Shag Rocks shelves (Southern Ocean)
Abstract: The distribution and diet of juvenile (<750 mm) Patagonian toothfish are described ... from 4 annual trawl surveys (2003-06) around the island of South Georgia in the Atlantic sector of the ... Southern Ocean. Recruitment of toothfish varies inter-annually, and a single large cohort dominated during ... the four years surveyed. Most juveniles were caught on the Shag Rocks shelf to the NW of South Georgia ...
Meeting Document : WG-FSA-07/P4 : Autor(es): M.A. Collins, K.A. Ross, M. Belchier, K. Reid. (Mar. Biol., 152: 135–147 (2007)).