Search results
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Selectivity of standard Polish commercial trawl codends on Antarctic fishing grounds
of 4.2 mm. The studies covered 6 major fish species. It appears from the study that Antarctic icefish ... and bumphead notothenia are subject to selection during trawling, although the effectiveness of this ... process- especially in the latter case- is not satisfactory. Scotia Sea icefish, Chaenodraco wilsoni, and ... Chionodraco rastrospinosus exhibit a lower tendency to pass through meshes of the codend than Antarctic ... Haberstroh (1987) expressed an opinion that the change of mesh shape from rhomboid to square has no special ... passed onto cover "no" to the sum of the same number of fish and the number of fish "nw" in the codend ... and having a length not greater than those in the cover, i.e. length L100, N = no. 100 no + nw ... weights of fish escaped and retained by the codend were exceptionally high, indicating that there were no ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 107-142 : Author(s): Zaucha, J.
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Note on estimating krill abundance from acoustic data on individual aggregations
conformation des concentrations. Pe310Me KpaTKO on HcaHbI
no JIO ... Abstract / Description: The fundamental equations and assumptions underlying estimation of krill abundance ... using echo-integration information and aggregation parameters are briefly described. The chief ... differences of the two approaches are highlighted. It is concluded that the echo-integration approach is ... superior for the estimation of regional krill abundance and its variance since it is easier to apply ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 219–223 : Author(s): Hampton, I. and D.G.M. Miller
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Protecting young fish and spawning aggregations of Champsocephalus gunnari in Subarea 48.3 (South Georgia): a review
aggregations in the deeper parts of Fortuna, Cumberland and Royal Bays in late March to mid-April, 1978 ... where spawning is known to occur. Some of the bays and shallow shelf areas have not been surveyed ... grounds for C. gunnnui. Such a closure would therefore need to be extended to the fjords and bays all ... 20 November 1989 to 15 Januar 1990 and from I April 1990 to tze end of theCommission meeting ... Subarea 48.3 (South Georgia): a review Abstract / Description: The need to protect young fish and ... spawning aggregations in fisheries generally, and specifically in the Champsocephalus gunnari fishery in ... Subarea 48.3, is reviewed. Mechanisms available to achieve these objectives are discussed, including the ... measures put in place by CCAMLR to date. These measures are re-examined in the light of new information ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 75–86 : Author(s): Parkes, G.B
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Beyond MSY: a consideration of definitions of management objectives
a maximum, but this will rarely be the point corresponding to MSY or GNAI.The difference is most easily ... / Description: The concept of ‘Maximum Sustainable Yield’ (MSY) has provided a useful guideline for resource ... management under the assumptions of a simple population model and simple objectives. This paper explores ... different guidelines under more realistic population models, taking account of the objectives set out in ... Article II of the CCAMLR Convention. The criteria will depend on whether the main concern is with ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Author(s): Gulland, J.A.
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Composition and characteristics of ichthyofauna in pelagic waters of South Georgia (Subarea 48.3)
(Subarea 48.3) Abstract / Description: This paper presents the results of randomly stratified pelagic ... studying the vertical migrations of some of the most abundant species were carried out during the six ... pelagic surveys. Horizontal distribution and length composition of fish, as well as the comparative ... distribution of krill and juvenile Champsocephalus gunnari were studied. The pelagic component of the ... hours virtually no juvenile fish were pelagic hauls. Most fish were in the range of caught in pelagic ... various depths during the day and at night: A - BMRT Gizhiga (No. 1: 6-7 June 1986; No. 2: 24-26 June ... ) 5 Dmitry Donskoy St. Kaliningrad 236000, Russia Abstract This paper presents the results of ... sampling stations aimed at studying the vertical migrations of some of the most abundant species were ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 125–164 : Author(s): Frolkina, G.A., M.P. Konstantinova and I.A Trunov
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Seal mitigation measures on trawl vessels fishing for krill in CCAMLR Subarea 48.3
de lobos fi nos (Arctocephalus gazella) en la pesquería de kril alrededor de Georgia del Sur ... lobos fi nos en esta pesquería. El WG-EMM pidió al Reino Unido que brindara más detalles sobre los ... medidas de mitigación para prevenir el enredo de lobos fi nos en los barcos de pesca de kril alrededor de ... operaciones de pesca durante la temporada. Estos enfoques, dirigidos a reducir los enredos de lobos fi nos ... Abstract / Description: At the 2004 meeting of the Working Group on Ecosystem Monitoring and Management ... (WG-EMM) in Siena, Italy, the UK reported on the by-catch of fur seals (Arctocephalus gazella) in the ... avoid fur seal deaths in the fishery. WG-EMM requested that the UK provide further details of the ... methods employed for consideration by the ad hoc Working Group on Incidental Mortality Arising from ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 195–205 : Author(s): Hooper, J., J.M. Clark, C. Charman and D. Agnew
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Fishing for toothfish using pots: results of trials undertaken around South Georgia, March–May 2000
, n o n y ~ e ~ ~ b ~ t i BO n p e M z l 3 ~ c n e p ~ i ~ e ~ ~ o ~ no no13ymeq~o~y npoMbrcny BoKpyr IOrn~oii reoprrru ... , March–May 2000 Abstract / Description: During the period March to May 2000, the UK undertook trials of ... (Subarea 48.3). This method has the potential to minimise, or eliminate, incidental bird mortality when ... compared to the standard longline method. This paper describes the trial and the results, and discusses the ... commercial viability of this fishing method for toothfish fisheries in the CCAMLR Convention Area. While the ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 93–105 : Author(s): Agnew, D.J., T.M. Daw, G.M. Pilling and M.G. Purves
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Potential interactions between wandering albatrosses and longline fisheries for Patagonian toothfish at South Georgia
r e o p r m (Diomedea exulaas) M noKanbHoro RpycHoro npo~blcna naTaroHcKoro KnbIKaYa (Dissostichus eleginoides) npH ... noMowM A ~ H H ~ I X C ~ Y T H M K O B O ~ O CnexeHnrr B cnyyae anb6a~pocoe H T ~ V H ~ I X KoopnMHaT ... , C X O X M X C pafi0HaMct BeneHHR 5IpyCHOrO IIpOMbICna, M, cneAouaTenbHo, noAsepraIoTcx cyqecTseHHoMy ... P H C K Y B p e 3 y n b ~ a ~ e 3 ~ o r o npOMblCna B ~ ~ H H ~ I W IIepAOA BpeMeHH. TeX nap, noKa He 6 y n y ~ IlIHpoKo npRMeHSfTbC5i ... Patagonian toothfish at South Georgia Abstract / Description: We examine the extent of overlap between South ... May and October (main chick-rearing period). However during the chick-brooding period, from March ... through mid-May, adult birds of both sexes spend most of their time at sea over the South Georgia ... continental shelf in areas very similar to where the longline fishery operates and are therefore at serious ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 101–110 : Author(s): Croxall, J.P. and P.A. Prince
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Preliminary model of krill fishery behaviour in Subarea 48.1
no6epexb~ K)XH~IX ~ ~ T J I ~ H ~ c K H x 0-BOB, M (ii) 3 0 H B PaAMyCe 100 KM OT OCTPOBOB ... Shetland du Sud. TaGnuqa 1: noKa3aTenki Y C M n A R A CPUE, PaCCqkiTaHHbIe IIO YUJIMWCKAM AaHHbIM 39 ... : A simple model of the behaviour of the krill fishery in FAO Statistical Subarea 48.1 (South Shetland ... Islands and Antarctic Peninsula) is described. Parameters of the model are calculated from Chilean fishery ... data over the period 1989 to 1992. The distribution of catches predicted by the model, which is ... restricted to the four months December to March, compares favourably with the historical distribution of ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 71–79 : Author(s): Agnew, D.J. and V.H. Marín
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Growth and natural mortality of Patagonian rockcod (Patagonotothen guntheri shagensis) from Shag Rocks shelf
shagensis) from Shag Rocks shelf Abstract / Description: The parameters of Bertalanffy’s growth equation ... -weight data of research and fishery survey cruises in the Shag Rocks area from 1978 to 1986. The natural ... mortality rate was assessed by six different methods and was within a range of 0.63 to 1.06. The mean value ... of natural mortality M=0.8 was used in calculations and the optimal age and length for harvesting ... ROCKCOD (PATAGONOTOTHEN GUNTHERI SHAGENS/S) FROM SHAG ROCKS SHELF V.1. Shlibanov Abstract The ... calculated by using age and length-weight data of research and fishery survey cruises in the Shag Rocks ... area from 1978 to 1986. The natural mortality rate was assessed by six different methods and was ... within a range of 0.63 to 1.06. The mean value of natural mortality M=0.8 was used in calculations and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 111–121 : Author(s): Shlibanov, V.I.