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Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3
Paper Title: Towards an initial operational management procedure for the krill fishery in ... (Euphausia superba) in Subareas 48.1, 48.2 and 48.3 requires a basis for the assessment of resource status ... , and an algorithm for specifying the levels of regulatory mechanisms (e.g., a catch control law) that ... depends on the results of the assessment. The development and selection of a procedure requires a basis ... reference level. Since no historic CPUE data (in respect of the Composite Index) are available, this ... ), there is no need to impose restrictions. (ii) Once that level (Cc) has been reached, the rate (cJ at ... reduced by twice the increment percentage). This paper intends no implication that the control law of ... (BIK)min for the case of no exploitation at all after the commencement of management (Cc=cr=O). Note ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Autor(es): Butterworth, D.S.
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Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
Paper Title: Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the ... -at-spawning for female and male Antarctic toothfish (Dissostichus mawsoni) from fish sampled in the ... Ross Sea spanning the 2000–2009 fishing seasons. A characterisation of the oocyte developmental cycle ... of D. mawsoni shows that once development begins, oocytes grow and accumulate at the cortical alveoli ... 881C in the northern region and Terra Nova Bay (SSRU 881M) (Figure 1). Histological assessment ... -stage fish on the slope showed no indication of spawning in the previous season, indicating they had ... - AND AGE-AT-SPAWNING OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA S.J. Parker ... Antarctic toothfish (Dissostichus mawsoni) from fish sampled in the Ross Sea spanning the 2000–2009 fishing ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Autor(es): Parker, S.J. and P.J. Grimes
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Fatty acid and stable isotope analyses to infer diet of Antarctic toothfish caught in the southern Ross Sea
in the southern Ross Sea Abstract / Description: To infer important prey resources for Antarctic ... toothfish (Dissostichus mawsoni) in the southern Ross Sea, their lipid composition was determined and ... compared to lipid profiles of fish and invertebrate species taken as by-catch in the fishery or collected ... from the stomachs of toothfish. Stable carbon and nitrogen isotope ratios were also determined to ... TOOTHFISH CAUGHT IN THE SOUTHERN ROSS SEA H.-S. Jo, I. Yeon, C. Lim Fisheries Resources Research ... prey resources for Antarctic toothfish (Dissostichus mawsoni) in the southern Ross Sea, their lipid ... in the fishery or collected from the stomachs of toothfish. Stable carbon and nitrogen isotope ... ratios were also determined to further identify feeding relationships between these species. The aim of ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 21–36 : Autor(es): Jo, H.-S., I. Yeon, C. Lim, S.M. Hanchet, D.-W. Lee and C.-K. Kang
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Effects of different harvesting strategies on the mackerel icefish Champsocephalus gunnari around South Georgia
Paper Title: Effects of different harvesting strategies on the mackerel icefish Champsocephalus ... gunnari around South Georgia Abstract / Description: The effects of a number of harvesting strategies on ... the mackerel icefish (Champsocephalus gunnari) have been simulated for a period of 30 years. These ... interval of three years with no fishing in between; and changes in net selectivity resulting in a shift in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 77–100 : Autor(es): Köster, F.W. and K.-H. Kock
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Analysis and modelling of the Soviet Southern Ocean krill fleet
Paper Title: Analysis and modelling of the Soviet Southern Ocean krill fleet Abstract ... / Description: The first part of this document contains an analysis of data pertaining to the Soviet krill ... fleet. The data base consists of the records of 12 different cruises by 8 different research vessels ... between 1981 and 1984. The data are analyzed according to operational characteristics of the fishing ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 127–235 : Autor(es): Mangel, M.
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Methodological guidelines on the assessment of trawl catchability of krill by means of statistical modelling
Paper Title: Methodological guidelines on the assessment of trawl catchability of krill by means ... of statistical modelling Abstract / Description: This paper offers an approach to the assessment of ... the relative effectiveness of krill fishing gear by means of statistical modelling. The Monte-Carlo ... method, which is described in the works by Metropolis, N., Ulam, S. (1949) and Sobol, I.M. (1978), is ... . Metropolis, N., Ulam :S. The Monte Carlo method. J. Amer. Statist. Assoc., v. 44, No. 247, 1949, p. 335-341 ... THE ASSESSMENT OF TRAWL CATCHABILITY OF KRILL BY MEANS OF STATISTICAL MODELLING Z.I.Kizner (U. S ... . S. R.) Abstract This paper offers an approach to the assessment of the relative effectiveness ... of krill fishing gear by means of statistical modelling. The Monte-Carlo method, which is described ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 195-222 : Autor(es): Kizner, Z.I.
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Notothenia (P.) guntheri stock status and TAC estimation in the area of Shag Rocks (Subarea 48.3)
Paper Title: Notothenia (P.) guntheri stock status and TAC estimation in the area of Shag Rocks ... -1987/88 were used to analyse N. guntheri stock status. On the basis of these data using VPA method with ... , using F regression on fishing effort and using average weighted F. Prior to the beginning of fishery N ... . guntheri abundance was estimated as 227 thousand tonnes (using all the above mentioned methods). For 1986 ... TAC ESTIMATION IN THE AREA OF SHAG ROCKS (SUBAREA 48.3) K. Shust and R. Borodin Abstract Data ... . guntheri stock status. On the basis of these data using V P A method with different adjustments stock ... fishing effort and using average weighted F. Prior to the beginning of fishery N. guntheri abundance was ... estimated as 227 thousand tonnes (using all the abovementioned methods). For 1986/87 the figure was only ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 53-68 : Autor(es): Shust, K. and R. Borodin
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Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of King George Island, 1988
Paper Title: Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of ... King George Island, 1988 Abstract / Description: The hydroacoustic survey found a low krill abundance ... in most areas covered by last year’s survey. The total biomass in the vicinity of Elephant Island was ... estimated from 120 kHz data to be 260k tonnes and that in the Bransfield Strait south of King George Island ... system (American) and the hull mounted system (Polish) in the RN Professor SiedJecki. There were no ... indications of interference between systems due to the operating frequencies having no common multiple (50 ... vessel track following the method described in BIOMASS Report Series No. 40. Mean volume back-scattering ... SURVEY OF ELEPHANT ISLAND AND THE VICINITY OF KING GEORGE ISLAND, 1988 M.C. Macaulay Abstract The ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 357–377 : Autor(es): Macaulay, M.C.
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Assessment and tag program adaption methods for exploratory fisheries in the CAMLR Convention Area: an example application for Division 58.4.3a
Paper Title: Assessment and tag program adaption methods for exploratory fisheries in the CAMLR ... Convention Area: an example application for Division 58.4.3a Abstract / Description: A methodology for the ... exploratory stocks in the CAMLR Convention Area. The assessment methodology is designed to be able to ... catch-at-length/age data and tagging data at-length/age. A simple algorithm, based upon the Petersen ... no direct age- structured information, apart from the intrinsic rate of increase parameter, r. This ... K an improper uniform prior is assumed – no information is added to the likelihood for all values ... be no recaptures to base an abundance esti- mate on). For an exploitation rate of one, the CV in ... (see Appendix 1). There are no CPUE data, and no estimate process error terms for the recap- ture ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 101–113 : Autor(es): Hillary, R.M
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Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000
Paper Title: Analysis of krill trawling positions north of the South Shetland Islands (Antarctic ... commercial krill trawling positions for the 1980/81 to 1999/2000 seasons in the area north of the South ... operations concentrated on the outer shelf in the early 1980s, along the shelf slope in the mid to late 1980s ... , and from the shelf across to the outer shelf in the early to late 1990s. Intra-annually, trawling ... from January, and in the 1982/83 season there were no valid data) (Table 2). The variation of STP for ... No. 430 from the National Research Institute of Far Seas Fisheries. REFERENCES BODC. 1997. GEBCO ... KRILL TRAWLING POSITIONS NORTH OF THE SOUTH SHETLAND ISLANDS (ANTARCTIC PENINSULA AREA), 1980181 ... of commercial krill trawling positions for the 1980/81 to 1999/2000 seasons in the area north of the ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 25–36 : Autor(es): Kawaguchi, S. and K. Segawa