Search results
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2014–15
remaining catches came mainly from SSRUs 88.1C, 88.1J, and 88.2L. A standardised CPUE analysis showed ... fishery were stable in the North up until 2014, then showed a decrease in mode, particularly for males (to ... similar to that in the early period of the fishery – the reason for this is unclear. There has been a ... readings and it is recommended that additional otolith readings for this area are given a high priority ...
Meeting Document : WG-FSA-15/36 : Author(s): K. Large, S.M. Hanchet and S. Mormede (New Zealand)
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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
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 ... daytime in May, and also a shift in the length distribution of krill. The results strongly support recent ... followed by a gradual shift in swarming behavior. Our results further showed that the fishing vessel ...
Meeting Document : WG-EMM-17/40 : Author(s): X. Wang, G. Skaret, O.R. Godø and X. Zhao
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Cruise report of multidisciplinary ecosystem survey in the eastern Indian sector of the Antarctic (CCAMLR Division 58.4.1) with a focus on Antarctic krill during 2018/19 season by the Japanese survey vessel, Kaiyo-maru
Abstract: A multidisciplinary ecosystem survey in the eastern Indian sector of the Antarctic ... (CCAMLR Division 58.4.1) with a focus on Antarctic krill was carried out by Kaiyo-maru during the 2018/19 ... , respectively. SADCP and PDR data were continuously recorded along the tracklines. A total of 101 CTD and 150 ... and chemical oceanographic studies. A total of 26 CTD casts were made for biological oceanographic ...
Meeting Document : WG-EMM-2019/42 : Author(s): H. Murase, K. Abe, R. Matsukura, H. Sasaki, R. Driscoll, S. Driscoll, F. Schaafsma, M. van Regteren, Q. Yang, H. Ohshima, K. Ohshima, R. Sugioka, J. Tong, N. Yamamoto, H. Doiguchi, E. Briggs, K. Doi, D. Hirano, K. Katsumata, M. Kiuchi, Y. Ko, D. Nomura, M. Orui, H. Sato, S. Toyoda, K. Yamazaki, T. Ishihara, K. Hamabe, S. Kumagai, T. Miyashita, N. Yamada, Y. Koyama and H. Sasaki
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Moving towards a new era in ecosystem-based krill fishery management
) 51-07. SC-CAMLR agrees on the need to conduct subarea or finer scale stock assessments on a regular ... ; 3) ensuring a method for bycatch reporting at 2-hour intervals in the continuous mid-water trawl ... in the continuous mid-water trawl fishing gear. SC-CAMLR organizes a technical workshop to undertake ... a comprehensive review of CEMP, considering the growing ecosystem monitoring requirements of CCAMLR ...
Meeting Document : SC-CAMLR-38/BG/22 : Author(s): Submitted by ASOC
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Krill biomass estimates for two survey boxes to the north east and north-west of South Georgia in January 1996: the beginning of a five-year monitoring program
James Clark Ross using a Simrad EK500 echo-sounder operating at 38, 120 and 200 kHz. These surveys were ... the first in a new five-year British Antarctic Survey programme initiated in part to monitor inter ... the north of Bird Island, within a foraging area of prime importance for breeding krill predators ... at night net hauls were carried out at a location toward the centre of the previous pair of transects ...
Meeting Document : WG-EMM-96/18 : Author(s): Watkins, J.L., Murray, A.W.A., Brierley, A.S.
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Preliminary assessment of mackerel icefish, Champsocephalus gunnari, in Subarea 48.3 using a length based population dynamics modelv
Abstract: A length-based projection model is used to estimate catch limits for the 2011/12 ... of the harvest control rule ensuring 75% escapement after a two year projection period yielded a ... , Champsocephalus gunnari, in Subarea 48.3 using a length based population dynamics modelv Approval: Approved ...
Meeting Document : WG-FSA-11/30 Rev. 1 : Author(s): R.E. Mitchell and S.M. Martin (United Kingdom)
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Timescale of ovarian maturation in Notothenia coriiceps (Richardson); evidence for a prolonged adolescent phase
Abstract: Ovarian maturation in Notothenia coriiceps is known to include a period during which ... for about one year. The results from a two year study at Signy Island indicate that this adolescent ... accompanied by a failure to spawn and an alternative where fecundity is controlled by the number of small ... Notothenia coriiceps (Richardson); evidence for a prolonged adolescent phase Approval: Approved ...
Meeting Document : WG-FSA-93/26 : Author(s): Inigo Everson (United Kingdom)
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A re-analysis of the Kerguelen Shelf and Skiff Bank stocks of Champsocephalus gunnari
-frequency data for the years 1981 to 1990. Cohort analysis yielded a Stock Biomass of 22 711 tonnes in 1988 ... for the Age 2 Kerguelen Shelf stock, an order of magnitude lower than that calculated from a biomass ... survey in 1988 by the USSR. This biomass is consistent with that from previous cohorts and indicates a ... (Secretariat) Title: A re-analysis of the Kerguelen Shelf and Skiff Bank stocks of Champsocephalus gunnari ...
Meeting Document : WG-FSA-90/17 : Author(s): G. Duhamel (France) and D.J. Agnew (Secretariat)
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A Comparison Between Age Determinations of the Antarctic Fish Notothenia gibberifrons Lönnberg Using Scales and Otoliths
gibberifrons. When interpreted separately, only 25% of scale and otolith readings agreed. When a scale and ... otolith from a single simultaneously, 75% of readings agreed. of otolith readings changed between specimen ... otoliths. Author(s): R. Coggan (United Kingdom), K. Skora (Poland), A. Murray and M. White (United Kingdom ... ) Title: A Comparison Between Age Determinations of the Antarctic Fish Notothenia gibberifrons Lönnberg ...
Meeting Document : WG-FSA-89/13 : Author(s): R. Coggan (United Kingdom), K. Skora (Poland), A. Murray and M. White (United Kingdom)
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Estimation of the 2011 catch limit for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3 using a length-based population dynamics model
Abstract: A length based projection model is employed to estimate catch limits for the 2011/12 ... . Application of the harvest control rule ensuring 75% escapement after a two year projection period yielded a ... Subarea 48.3 using a length-based population dynamics model Approval: Approved ...
Meeting Document : WG-FSA-10/37 : Author(s): C.T.T. Edwards, R.E. Mitchell, J. Pearce and D.J. Agnew (UK)