Résultats de la recherche

1. Choosing distance between acoustic survey tacks

   on the basis of typical size of the surveyed region, allowable relative error in the biomass estimate ... stock exploitation rate and other factors, we have to estimate the biomass with an error 8B~30 ... , ~ , ~,,~" !,I I6~,\ :::::;::""""-1:~:,~ 30~ ~ <: I:' · .. . I·"'t:':::::"............ --=:z"=~ 20% '= I,' 7 ... transverse size k>l. Such configuration is typical for concentrations on shelves. In this case, the tacks ... Krasnoselskaya, 17 Choosing the frequency of survey tacks is an important aspect of acoustic surveying ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 153-164 : Auteur(s): Kalikhman, I.L., Z.I. Kizner, B.R. Zaripov and W.D. Tesler

2. The results of investigations of the feeding of Antarctic toothfish D. mawsoni in the Ross Sea in 2005/06

   December to March during the two fishery seasons (2004-2005 and 2005-2006) in different fishing areas of ... the Ross Sea located between 67°S to 76°S. 192 longline settings were made. In total, over two seasons ... empty (42% in 2005 and 41% in 2006). For feeding Antarctic toothfish fish was the main food object (78 ... Abstract:  The works on study of the diet composition of Antarctic toothfish were conducted from ...

   Meeting Document : WG-FSA-06/17 : Auteur(s): A.F. Petrov (Russia)

3. Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia

   with an approximately linear relationship existing between depth and fish length. A statistically ... both up and down slope at particular times of year. Months with a high mean length at depth are May and ... Georgia. This concentration of large post-spawning fish may have some implications for the management of ... sampling the catch and two for recording events on deck. Some flexibility was required with this system ... inter- cruise time consisting of about a week's return to port for landing the catch. Two observers ... line haul was divided into hourly or half-hourly periods, two periods being chosen at random for ... calculated for each haul, and an array of mean length by haul, area, depth and vessel was produced. In ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Auteur(s): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce

4. Estimation of the incidental capture of seabird species in commercial fisheries in New Zealand waters, 2001/02

   : 81 seabirds (c.v. = 4%) were estimated caught on chartered tuna longlines in southern waters; 20 ... . Observed squid (Nototodarus spp.) and hoki (Macruronus novaezelandiae) trawl fisheries accounted for 87% of ... for the main fisheries with observed seabird captures: for ling longlines mean catch rates ranged from ... 0.098 seabirds per 1000 hooks (s.e. = 0.020) in LIN 4 to 0.057 (s.e. = 0.012) in LIN 5; for hoki ...

   Meeting Document : WG-FSA-04/56 : Auteur(s): S.J. Baird (New Zealand)

5. Guidelines to whale photo-identification from fishing boats derived from experience in Kerguelen (ASD 58.5.1) and Crozet (ASD 58.6)

   contributed to a whale photo-identification program for several years. This paper describes the gear used ... Abstract:  Scientific observers on board vessels fishing in Kerguelen and Crozet EEZ have ... , based on this experience. These guidelines have been assembled to help members wishing to start a photo ... -identification program. This document could be part of the resources provided by CCAMLR on its website.   Author ...

   Meeting Document : WG-FSA-13/08 : Auteur(s): N. Gasco, P. Tixier and C. Guinet (France)

6. Assessment of escape mortality of Antarctic krill (Euphausia superba) in trawls

   experiment was carried out on the krill fishing grounds off South Orkney Islands (60°35’S, 45°30’W), during ... January-February 2014. The method applied consisted of a covered trawl codend system for retaining ... escapees, thereafter kept on the surface in tanks to monitor rates of mortality. Hauling depth and duration ... as well as handling effects on land including exposure to temperature differences likely influenced ...

   Meeting Document : WG-EMM-14/14 : Auteur(s): B.A. Krafft (Norway) and L.A. Krag (Denmark)

7. Results from the 1998 bottom trawl survey of Elephant Island and the lower South Shetland Islands (Subarea 48.1)

   Resources program in two major regions of the South Shetland Islands: Elephant Island and the lower South ... levels, size composition, and condition are described and compared between the two regions. Maturity ... ogives were constructed for five species of finfish: Champsocephalus gunnari, Gobionotothen gibberifrons ... Shetland Islands from King George Island to Livingston Island. Information on species composition, catch ...

   Meeting Document : WG-FSA-98/15 : Auteur(s): C.D. Jones (USA), K.-H. Kock and S. Wilhelms (Germany)

8. Characteristics of krill swarms from Prydz Bay

   inter-swarm length were calculated for swarms of euphausiids encountered along a 78 km transect over the ... Euphausia crystallorophias. An increase in swarm length was seen with increasing distance from the coast ... CCAMLR.AUS dataset available to the Subgroup on Survey Design was derived from a survey of Prydz Bay ... 1800 ~ I- l- I- I- 50 40 30 20 10 1002 c 80 !2: ~ 60 40 20 Figure 2: Log ... ) 60 50 40 30 20 10 1n (between swarm distance) Figure 3(b): Log transformed between ... - - - I- I -44 19 (kg) 50 0 40 ~ 30 20 10 70 60 50 40 30 20 10 I'J 0 0 ... ,:" •• .. .,:-. .- -10 L-~I __ -L __ -L __ ~I __ -L __ ~ __ ~~ o 10 20 30 40 50 60 70 80 distance along transect (km ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 177–189 : Auteur(s): Agnew, D.J. and I.R. Higginbottom

9. REVISED ASSESSMENT OF TOOTHFISH STOCKS IN DIVISIONS 58.4.1, 58.4.2

   number of consecutive years with the tagging of toothfish a prerequisite for the legal fishery. This ... Abstract:  Exploratory fisheries for Dissostichus spp. have been operating in these regions for a ... examines 4 assessment methods based on comparative CPUE trends, local depletions, a constant recruitment ...

   Meeting Document : WG-FSA-08/43 : Auteur(s): D.J. Agnew, C. Edwards, R. Hillary, R. Mitchell (UK) and L.J. López Abellán (Spain)

10. Biomass abundance and distribution of fish in the Kerguelen Islands’ zone (Division 58.5.1)

    . Besides the commercial species, two species were abundant: Zanclorhynchus spinifer on the shelf and ... bottom trawling. Estimations of biomass and abundance are provided for eight commercial species. The ... squamifrons) seem to have increased, even doubled, their biomass during the period between the two surveys ... , important in the ecosystem. It is of a major interest for the management and conservation of fish ...

    Meeting Document : WG-FSA-07/16 : Auteur(s): G. Duhamel and M. Hautecoeur (France)

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