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Commission pour la conservation de la faune et la flore marines de l'Antarctique

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  1. Can we satisfactorily estimate variation in krill abundance?

    . Berlin, Heidelberg, New York, Tokyo). File:  14-Everson.pdf ... from data reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... , Heidelberg, New York, Tokyo. 1. British Antarctic Survey, Natural Environment Research Council, High ... variability. Springer. Berlin. Heidelberq. New York. Tokyo. Pe310Me 3HaHHe 'IHCneHHOCTM H TeMnOB ... , Heidelberg. New York, Tokyo. ... reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) does not ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 375-376 : Auteur(s): Everson, I.

  2. Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines

    addition to providing a methodology that could be used in other areas with depredation issues, these ... depredation occurs on fish in the marine environment. This is the case for killer whales (Orcinus orca) and ... : 41–46. Capdeville, D. 1997. Interaction of marine mam- mals with the longline fishery around the Ker ... with depredation issues, these findings emphasise the critical importance for fishery managers and ... ., 2000; Tilney and Purves, 1999), with more than 75% of longlines set subjected to inter- actions ... the fishing operations. The acquired dataset from fishery observations, as well as collaboration with ...

    Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Auteur(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet

  3. Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning

    conservation planning for developing marine spatial protection includes analysis of the spatial distribution of ... be used to prioritise protection for bioregions that are currently under-represented in marine ... ). Various authors have described individual steps for this process with slightly different formulations ... extent to which these meet the defined objectives (iv) select new conservation areas to be considered ... for addition to the suite of existing areas, with the aim of meeting the defined conservation ... that can meet the defined conservation objectives with minimal displacement of these activities. In ...

    Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Auteur(s): Grant, S.M., S.L. Hill and P.T. Fretwell

  4. Observations of fishing operations on a krill trawler and distributional behaviour of krill off Wilkes Land during the 1985/86 season

    of fished swarms ranged from 100 m to 10 km with different distributions occurring in different ... into the fish and squid-harvesting off South America and New Zealand and almost all the vessels ... to 10 km with different distributions occurring in different fishing areas. While catch per towing ... valuable due to marketing competition with the smaller euphausid species, Euphausia pacifica, fished off ... hence a combination with other bottom trawling operations was sought. Historical fishing grounds used ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 335-368 : Auteur(s): Ichii, T.

  5. Length-based assessments revisited – why stock status and fishing mortality of long-lived species such as toothfish cannot be inferred from length-frequency data alone

    / Description:  In many of CCAMLR’s new and exploratory fisheries, stock assessment techniques are still in ... eleginoides) are illustrated. While length-frequency data can be useful in assessments when integrated with ... CCAMLR aims to ensure that the development of a new and exploratory fishery does not occur faster than ... the precautionary catch limits. For new and exploratory fisheries of Patagonian toothfish ... not been possible for most other new and exploratory toothfish fisher- ies. Some reasons for this ... problems with low tagging rates, insufficient overlap in the geographical loca- tion and the length ...

    Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 57–73 : Auteur(s): Ziegler, P.E., D.C. Welsford and A.J. Constable

  6. [node:field-journal-volume]:37-51

    (NIWA) Ltd Private Bag 14-901, Kilbirnie Wellington, New Zealand Email – p.marriott@niwa.co.nz P.L ... . Horn NIWA Ltd PO Box 893, Nelson New Zealand P. McMillan NIWA Ltd Private Bag 14-901 Kilbirnie ... , Wellington New Zealand Abstract Samples of macrourid rattail by-catch from the toothfi sh fi shery in the ... Ross Sea dependency in 2002 were identifi ed by observers and returned to New Zealand for subsequent ...

    Science Journal Paper : 37–51

  7. Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3

    less accurate estimates of fish length. Seasonal variations in fish mass with reproductive condition ... variations in fi sh mass with reproductive condition need to be considered if predictions of fi sh mass from ... anal) and fi sh mass indicate simple relationships between variables with otolith length increasing ... with increasing body size. The data are reasonably well fi tted with simple linear regressions. Simi ... against fi sh length and weight are shown with fi tted curves in Figure 1. Signifi cant relationships ...

    Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 133–143 : Auteur(s): Morley, S. and M. Belchier

  8. Length-based assessment for mackerel icefish (Champsocephalus gunnari) at South Georgia

    described that removes the problem of cohort determination. A bootstrap technique (consistent with the ... data which, in conjunction with the bootstrapped survey biomass data, yields an estimate of the ... age composition in CMIX. Using the 2009 survey data and the new methodology, a TAC was calculated ... technique (consistent with the current CCAMLR approach) is used to estimate the length distribution of the ... population from the survey data which, in conjunction with the bootstrapped survey biomass data, yields an ... reliably estimate age composition in CMIX. Using the 2009 survey data and the new methodology, a TAC was ... Georgia la Mare, 1994) has previously been used with the haul-level survey density-at-length and the ...

    Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 129–137 : Auteur(s): Hillary, R.M., C.T.T. Edwards, R.E. Mitchell and D.J. Agnew

  9. Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1, 48.2 and 88.3)

    del Fuego was conducted as part of the New Fisheries Projects developed by Chile, primarily to ... system) were used for the operation, with variable quantities of fish hooks (1 440 to 4 320), No. 9 ... 'S). Yields of Dissostichus spp. were very low in the three subareas, with values of only 5.7 g ... the New Fisheries Projects developed by Chile, primarily to establish the presence of Dissostichus ... operation, with variable quantities of fish hooks (1 440 to 4 320), No. 9 Mustad Kirby type, set between ... very low in the three subareas, with values of only 5.7 g/hook (Subarea 88.3), 19.1 g/hook (Subarea ... motivating research on the biology of D. eleginoides, as well as establishing new areas where this resource ...

    Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 1–17 : Auteur(s): Arana, P.M. and R. Vega

  10. Revised estimates of the area of the South Georgia and Shag Rocks shelf (CCAMLR Subarea 48.3)

    Subarea 48.3) Abstract / Description:  A new South Georgia Bathymetric Dataset (SGDB) was compiled from a ... ) within CCAMLR Subarea 48.3 was calculated using this new dataset. Total sea floor area within the region ... depth strata. The new dataset is considered the most accurate and reliable currently available and ... should be used for future assessments and for assisting with the stratification of surveys. File ... region. The new data are compared with estimates of seabed area derived from nauti- cal charts by ... – markb@bas.ac.uk Abstract A new South Georgia Bathymetric Dataset (SGDB) was compiled from a variety of ... Subarea 48.3 was calculated using this new dataset. Total sea floor area within the region closely ... strata. The new dataset is considered the most accurate and reliable currently available and should be ...

    Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 167–175 : Auteur(s): Belchier, M. and P. Fretwell

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