Résultats de la recherche
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Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea, Antarctica
mature at about 340–360 mm total length (TL) and about 3–4 years of age, and that 95% were mature at ... about 370–400 mm TL and 6–8 years of age. Counts of growth zones in sectioned otoliths were used to ... approached a significantly larger mean asymptotic maximum size than males. Maximum ages of 8 and 11 years ... from most of the calendar year were therefore lacking, so it was not possible to investigate the ... be due to regurgitation of prey during capture. All otoliths were read by a single reader, and 30 ... , there is a lack of small fish (≤30 cm; age ≤ 1), and so the von Bertalanffy growth curve parameters ... small fish (≤30 cm). There is a need to sample these small fish. 5. Diet analyses showed most icefish ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 139–165 : Auteur(s): Sutton, C.P., M.J. Manning, D.W. Stevens and P.M. Marriott
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Marine debris collected at Cape Shirreff during the Antarctic season 2000/01
51% of the total identified items. For the first time it was recorded an article from Philippines. It ...
Meeting Document : SC-CAMLR-XX/BG/25 : Auteur(s): Delegation of Chile
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WG-FSA-14
, Assessments and Modelling (Punta Arenas, Chile, 30 June to 4 July 2014) CCAMLR-XXXIII/03 Maturity stages for ... 58.4.2 in 2014/15 Delegation of Japan WG-FSA-14/20 Revised research plan for the exploratory fisheries ... seasons V. Laptikhovsky, R. Scott, M. Söffker and C. Darby (United Kingdom) WG-FSA-14/30 Rev. 1 A Petersen ... Nine years of tag-recapture in CCAMLR Statistical Subarea 48.3 – Part II: Spatial movement and analysis ...
Meeting
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Fishery Report: Dissostichus eleginoides South Georgia (Subarea 48.3)
spread evenly over the fished areas. Management Area A (West Shag) 43 30' W48 00' W Maurice ... (South Georgia) 56 S 52 30' S 33 30' W SGSR stock area 2000m 1000m shagW shag NWgeorgia ... them by, on average, 3.6% over the reported figures for that year. The resultant catch series is ... depredation. Year Total removals Year Total removals 1985 517 1998 3410 1986 732 1999 4387 1987 1954 ...
Document : Site Section: Publications
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Towards the development of a management plan for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3
years of poor krill availability. Thus natural ortality of C. gunnari may, in some years, increase by a ... : Probability of stock biomass dropping below 20% of the unexploited median level over a 10-year period ... -year projection period, in only one-third of these was the spawning stock level less than 20% of the ... assumed to be independent between years and equally likely to occur in each year. Results of a number of ... clear, however, that if natural mortality (M) is highly variable from year to year, it is difficult to ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 63–77 : Auteur(s): Agnew, D.J., I. Everson, G.P. Kirkwood and G.B. Parkes
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WG-FSA-08/60
between 20 and 30 magazines of longline. Each magazine holds about 1000 to 1200 hooks – depending on hook ... to be measured and at least 30 fish sampled for biological studies. In the Ross Sea fishery the CM ... must undertake the following research activities: 20 (i) On first entry into an SSRU, the ... undertake a ‘third series’ which will result in a total of 20 research hauls being made in all three series ...
Document : Site Section: Publications
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Australian research on Antarctic bird and seal diets
Heard and Macquarie Islands have been collected during the last seven years. Published and unpublished ... ) 20 38 3' 1 58 400 39 29 32 o Location: Sea ice off Davis Station (68°30'S: 77°50'E ... Davis Station (68°30'S:77°50'E), in the south-eastern corner of the Prydz Bay Priority Area of CEMP ... from these studies. 2. SUMMARY OF FINDINGS 2.1 Adelie Penguin Location: Davis Station (68°30'S ... ): Euphausia crystallorophias 4 4 Euphausia superba 2 4 Fish 28 Amphipods 4 Location: Davis Station (68°30 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 231-249 : Auteur(s): Williams, R.
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Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
swann depth (metres) 42 29 41 24 29 25 30 21 cr, swann depth 13 20 13 8 10 14 16 8 Mean swann ... 47 59 30 23 20 29 17 cr, mean swann length (metres) 15 16 19 7 10 7 20 4 Swann density field in ... by a trawl bag of 20 mm twine. This protects the trawl bag from mechanical damage. Features of ... catchability no less than ~ x(P) = 0.1, it would be necessary to carry out over the study area 20 hauls with a ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Auteur(s): Kasatkina, S.M.
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Fishery Report 2013: Dissostichus eleginoides South Georgia (Subarea 48.3)
. Throughout this report the CCAMLR fishing season is represented by the year in which that season ended, e.g ... . 2012 represents the 2011/12 CCAMLR fishing season (from 1 December 2011 to 30 November 2012 ... extension to the season, with the season starting five days earlier each year such that the 2013 season ... . The number of hauls (N) and the number of fish measured (n) in each year are given at the top of each ...
Document : Site Section: Publications
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e-sc-xxxi-a04.pdf
... Sixth Meeting of the Subgroup on Acoustic Survey and Analysis Methods (Bergen, Norway, 17 to 20 ... , 17 to 20 April 2012) INTRODUCTION 1.1 The sixth meeting of the Subgroup on Acoustic Survey and ... Analysis Methods (SG-ASAM) was held at the Institute of Marine Research (IMR), Bergen, Norway, 17 to 20 ... surveys at other times of year (iii) provide replicate data to allow comparison of vessel noise and
application/pdf attached to:SG-ASAM-12
Meeting Report : SG-ASAM-12