Search results
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Antarctic seafloor geomorphology as a guide to benthic bioregionalisation
regimes. Where more detailed data are available, shelf geomorphology provides a guide to the distribution ... of the shelf benthic communities recognised by a number of authors. For areas off the shelf, the ... geomorphic mapping method presented here rapidly provides a layer to add to benthic bioregionalisation using ... produce a meaningful benthic bioregionalisation for an area as poorly known as the Antarctic continental ...
Meeting Document : SC-CAMLR-XXVI/BG/27 : Author(s): Delegation of Australia
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Preliminary analyses of an ectoparasite Eubrachiella antarctica as a marker for stock discrimination of Antarctic toothfish in the Ross Sea
antarctica as a marker for stock discrimination of Antarctic toothfish in the Ross Sea. New Zealand Ministry ... copepod parasites were identified as female or male E. antarctica. D. mawsoni from 88.1H had a higher ... experience, but represent a regional difference in prevalence and intensity of E. antarctica on D. mawsoni ... a picture of toothfish movement over different time scales. The stability of this regional ...
Meeting Document : WG-FSA-06/28 : Author(s): P.J. Smith, A. McKenzie and L. Tubbs (New Zealand)
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A krill–predator–fishery model for evaluating candidate management procedures
uncertainty about how the krill-predator- fishery system operates. We describe a model designed to investigate ... and predation processes. The fishery is represented as a simultaneous and equal competitor for ... simulations. We present a range of performance measures that can be used to evaluate catch-allocation ... necessarily simplifies a complex system, it provides a flexible framework for investigating the roles of ...
Meeting Document : WG-EMM-05/13 : Author(s): G.M. Watters, J.T. Hinke (USA), K. Reid and S. Hill (United Kingdom)
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The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR
a reasonable figure/rate of line observation for each setting of the lines. A video recording system ... was installed on a longliner targeting toothfish in CCAMLR Subarea 48.3. This system provided 100% of ... totalling 31 hours and 57 minutes were observed and recorded. For hauling, a total of 53,403 hooks were ... by a scientific observer was compared with recorded video footage recorded by 3 different video ...
Meeting Document : WG-FSA-14/27 : Author(s): R.A. Benedet (United Kingdom)
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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)