Résultats de la recherche

1. Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea

   Paper Title:  Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the ... Bay) at 38, 120 and 200 kHz in May 2007 and in February 2009. Overall ex situ TS–TL relationships were ... TL(cm) –73.74; (N = 16). Nine in situ acoustic trawl experiments targeted at juveniles and post ... -larvae of P. antarcticum with a total length from 13 to 70 mm, were conducted in the southeast of the ... , were conducted in the southeast of the continental slope and shelf of the Ross Sea at depths from 30 ... juvenile stages (size: 45–48 mm; age: second year), coinciding with an increase in lipid content in the ... specific ventral sacs (from 12–15% of first year to 20–32% dry weight (DW) of second year; DeVries and ... measured as an average value. It was assumed that a variation of around 20% or less in mean TS arising ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Auteur(s): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi

2. Downward adjustments to local catch limits for the krill fishery in Subarea 48.1

   adjustments to local catch limits for the krill fishery in Subarea 48.1.  We use the term local catch limit to ... the gSSMUs defined in another compilation of vignettes (AERD 2016a, pp. 3-13).  We propose downward ... krill fishery in Subarea 48.1 (see Watters et al. 2016).  Our proposal to make downward adjustments is ... crèche can predict poor recruitment; when the chicks in a cohort crèche at a relatively young age, cohort ...

   Meeting Document : WG-EMM-16/46 : Auteur(s): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries

3. Diving pattern and performance in nonbreeding gentoo penguins (Pygoscelis papua) during winter

   % less and stomach-content mass on return ashore 30% less in winter. We conclude that foraging activity ... organization during the foraging trip) in relation to diet in nonbreeding Gentoo Penguins (Pygoscelis papua ... ) over 59 days (involving 5,469 dives) in winter. We estimated foraging ranges and prey capture rates ... were bimodal. Shallow dives (30 m; 55% of total number and 81% of dive time) averaged 74-105 m and 2.7 ...

   Meeting Document : WG-CEMP-92/37 : Auteur(s): T.D. Williams (United Kingdom), A. Kato (Japan), J.P. Croxall (United Kingdom), Y. Naito (Japan), D.R. Briggs, S. Rodwell and T.R. Barton (United Kingdom)

4. Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys

   December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 ... the literature are used to show that for some years, at distances of between 20 and 60 km from ... Abstract:  Zones of 20 km width are defined around selected colonies of penguins distributed ... around the coasts of the South Shetland and South Orkney Islands. Krill catches in these zones are shown ...

   Meeting Document : WG-KRILL-92/19 : Auteur(s): D.J. Agnew (Secretariat)

5. Spatial scales of benthic invertebrate habitats from fishery by catch and video transect data in the Ross Sea region

   occurred at a typical scale of 10-30 km 2, though some sponge habitats appeared larger. Spatial analysis of ... in catch rate at different densities. Results indicate that sponge patches are detected more than 70 ... sponges and other vulnerable taxa occur in complex mosaic patterns of small patches dispersed within ... invertebrate habitats from fishery by catch and video transect data in the Ross Sea region Approval:  Approved ...

   Meeting Document : WG-EMM-10/28 : Auteur(s): S.J. Parker, R.G. Cole and S.M. Hanchet (New Zealand)

6. Preliminary analyses in support of the CEMP Review Workshop: power analyses

   and 20 years. Generally, time series arising from 5 annual surveys provided little power to detect ... , C1 under the survey scenarios of 10 and 20 years and alpha levels of 0.05 or greater. Author(s ... software MONITOR (J. P. Gibbs, 1995). In all, 170 time series were investigated for their power to detect ... change. However, changes within the range –10% to +10% can be detected in indices A1, A2, A5a, A7, A8b ...

   Meeting Document : WG-EMM-03/26 : Auteur(s): Secretariat

7. Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.2

   12 6.2 Mitigation measures 30. CM 25-02 applies to this fishery and in recent years has been ... Dissostichus spp. was 70 tonnes, of which no more than 30 tonnes could be taken in SSRU A and no more than 40 ... December 2009 to 30 November 2010. Environmental protection in this fishery is regulated by CMs 26-01, 22 ... 2008, the Commission agreed to the Year-of-the-Skate, and the protocol in CCAMLR-XXVII, paragraph 4.55 ...

   Document : Site Section: Publications

8. Preliminary assessment of long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island region (CCAMLR Division 58.5.2) based on a random stratified trawl survey in June 2005

   Abstract:  A survey of Patagonian toothfish, Dissostichus eleginoides,was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in June 2005 to provide the information for an assessment of short ... -term annual yield in the 2005/2006 CCAMLR season. This paper provides a preliminary assessment of yield ... for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods. It also ...

   Meeting Document : WG-FSA-05/30 : Auteur(s): A.J. Constable, T. Lamb and R. Williams (Australia)

9. Integrated analysis of the by-catch data in the Ross Sea toothfish fishery

   Abstract:  The indices of exploratory toothfish fishery in the Ross Sea for the period of 2008 ... hooks) and normalized target catch ratio. There was evidence of distinct differences in the mean (and ... distribution) in the CPUE toothfish and the by-catch CPUE.     Our analysis also show that target catch ratios ... in toothfish and non-target species distribution in the Ross Sea, but not the longline vessels and ...

   Meeting Document : WG-FSA-16/13 Rev. 1 : Auteur(s): S. Kasatkina

10. Surface water circulation in krill fishing areas near the South Shetland Islands

    Paper Title:  Surface water circulation in krill fishing areas near the South Shetland Islands ... deployed in shelf and oceanic waters to the north of the South Shetland Islands. Each buoy was deployed ... with a drogue attached at a depth of 30 m to assess flow patterns at the depth range where krill tended ... sluggish southwest current with a series of small-scale circular and semi-circular flows in the shelf ... ; cylindrical type - length 8.6 m, diameter 0.94 m in 1994/95) at a depth of 30 m to assess flow pattern at ... Orkneys for 20 days before drifting to South Georgia. Buoy 4, deployed in the shelf region, moved east ... in the Atlantic sector of the Southern Ocean. Berichte zue Polarforschung, Sonderh., 4: 30-46 ... trawling positions of Japanese fishing vessels in the past 13 years, and also from krill abundance in ...

    Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Auteur(s): Ichii, T. and M. Naganobu

Pages