Résultats de la recherche
-
The migration patterns of Electrona carlsbergi (Tåning, 1932)
the early stages of its life cycle, a theory has been put forward concerning the presence in the notal ... region and various sectors of Antarctica of several reproductive zones coinciding with areas of large ... mature specimens 8.5-11 cm in length and 3-5 years old increases. Based on the dynamic processes of the ... sectors of Antarctica E. carlsbergi is represented by immature specimens 7 to 8 cm in length and 2 years ...
Meeting Document : WG-FSA-93/18 : Auteur(s): A.N. Kozlov (Russia)
-
Note on estimating krill abundance from acoustic data on individual aggregations
abundance has been echo-integration (cf. Forbes and Nakken, 1972; Johannesson and Mitson, 1983; Maclennan ... A the area surveyed. The problem with this estimator is that neither BAg nor SAg, nor their ... : 19 pp. FORBES, S.T. and O. NAKKEN (Eds). 1972. Manual on methods for fisheries resource survey and ... appraisal. Part 2. The use of acoustic instruments for fish detection and abundance estimation. FAO Man ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 219–223 : Auteur(s): Hampton, I. and D.G.M. Miller
-
e-sc-x-a7.pdf
... latter did not relate significantly to foraging trip duration). In neither year did maternal age or ... -year’ entry on all forms (the second year in a split-year should be used as the designator) and with ... sites during the appropriate time of the year. Future costs associated with data acquisition would ... detect change, but the data can still be compared with other years or sites. In contrast, there is less
application/pdf attached to:WG-CEMP-91Meeting Report : WG-CEMP-91
-
e-sc-38-a4.pdf
... link output from the previous year in extracts to data users to support data comparisons between years ... releases from the early years of the fishery in Subarea 88.1 and small-scale research units (SSRUs) 882A–B ... relationship and estimates of removals due to lost longlines using either the geometric mean of catch rates ... from the fishing season during which the gear was lost, or the catch-per-unit-effort (CPUE) from the
application/pdf attached to:WG-SAM-2019Meeting Report : WG-SAM-2019
-
Antarctic neritic krill Euphausia chrystallorophias: spatio-temporal distribution, growth and grazing rates
for only 180 days per year, mean growth rates ranged from 0.070-0.075 to 0.019-0.022 mm per day during ... the first and the fourth year, respectively. Von Bertalanffy growth curves calculated for different ... early December and may extend to the beginning of January. Most larvae were in the stage of metanauplius ... /calyptopis I at the beginning of January and calyptopis III/furcilia I during February. The year-l cohort was ...
Meeting Document : WG-Joint-94/10 : Auteur(s): E.A. Pakhomov (Ukraine) and R. Perissinotto (South Africa)
-
Fishery Report: Dissostichus eleginoides South Georgia (Subarea 48.3)
decision rules is 3 200 tonnes, using future recruitment with log-normally distributed year class ... dominated commercial catch-at-age in the early 2000s, with the 1993 cohort increasing in dominance from ... current stock size (Table 10) but there is some uncertainty about future recruitment, with estimated year ... distributed year class strengths with a mean and CV set using a truncated range of year class strength ...
Document : Site Section: Publications
-
Analysis of trawl data from the South Georgia krill fishery
large number of trawls were undertaken by each,vessel, with trawls being shorter in duration during the ... with shooting and hauling the net were usually short and showed little variation, whereas the time ... associated with the actual trawl phase was longer and more variable. The distance between consecutive trawls ... middle of the day. Daytime trawls were also generally deeper and produced a larger catch. Individual ...
Meeting Document : WG-EMM-97/41 : Auteur(s): Parkes, G., Trathan, P.N., Everson, I., Murphy, E.J.
-
Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea
monitoring conducted just prior to, or early in, the fishing season. For the purposes of illustration and ... fishery would be restricted in some of its traditional fishing grounds during years of low krill ... with permission from the data collectors. South Georgia South Shetland Islands Year Krill (g m–2 ... is a dynamic allocation based on land-based predator monitoring conducted just prior to, or early in ... small-scale man- agement units (SSMUs). The Commission further directed the Scientifi c Committee to ... early in the fi shing season. The SSMUs adopted for Subareas 48.1, 48.2 and 48.3 are described in ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Auteur(s): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins
-
e-cc-xiii-a5.pdf
... first six years of the operation of the System, the level of 106 inspections was very low, with only ... , ‘Operation of the System of Inspection’, be considered together with sub-item 2, ‘Compliance with ... . There were no objections to any Measures and, in accordance with Article IX 6(b) of the Convention ... information provided by Members on steps taken by them to implement and ensure compliance with the
application/pdf attached to:SCOI-94Meeting Report : SCOI-94
-
e-cc-xviii.pdf
... come into force early next year. The Parliament of Namibia has already approved Namibia’s accession to ... requirements and the necessity for them to be complied with as early as possible. 3.9 Sweden noted that the ... on this issue and asked it to provide the Commission next year with detailed comments on such a ... payment on the first day of the financial year (i.e. the due date) and shall be paid not later than 60
application/pdf attached to:CCAMLR-XVIIIMeeting Report : CCAMLR-XVIII