Résultats de la recherche
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Research currently being undertaken by the Republic of South Africa on "dependent and related species" within the Antarctic marine ecosystem
Paper Title: Research currently being undertaken by the Republic of South Africa on " ... susta:in 13n active hu•,an bein~ for 300 !::lear,s, These ca I cu I at i on:!i take no account of t.he ... !:'nts, - G2 - but the few that do occur Providf~ an ideal OPPortunit~ for -sci.;,ntist-s t.o ... illPortance in the habitat F>refl?rence,-s; of these ~;F'ecies for-111 an i111Portant component of the inve ... Part of the Southern Oc~an bounded bw latitudes 30-70 Sand I on9 i tudes 10 W ta 40 E. Research i ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 59-77 : Auteur(s): South Africa
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Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3
differences in M between fishing sites. On the other hand, when comparing various mean values of M for the ... curve hooks No. 14 and straight hooks No. 22. The general mean value of M calculated for the 44 analysed ... Paper Title: Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3 ... hook types in Subarea 48.3. Natural mortality (M) calculated for two fishing depth strata in Subarea ... sites. On the other hand, when comparing various mean values of M for the different cases, it was ... comments on the estimation of natural mortality for C. gunnari, N. squamifrons and P. guntheri based on ... straight hooks No. 22. The general mean value of M calculated for the 44 analysed situations was 0.14 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 21–30 : Auteur(s): Moreno, C.A. and P.S. Rubilar
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Hydrological conditions and characteristics of icefish (Channichthyidae) distribution on the South Georgia shelf in 1986/87
, commercial fisheries and biological data for 1986/87. File: 01-Shnar-and-Shilbanov.pdf ... ) distribution on the South Georgia shelf in 1986/87 Abstract / Description: Some characteristics of spatial and ... temporal variability of the distribution of icefish (Channichthyidae) on the South Georgia shelf in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 3–14 : Auteur(s): Shnar, V.N. and V.I. Shlibanov
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A rationale for conservation areas within Antarctic waters
marine living resources’ (Article IX 2 (b)). In order to select meaningful boundaries for such areas ... Paper Title: A rationale for conservation areas within Antarctic waters Abstract / Description ... °E- 150°E 150°E- 160°W 160°W- 70°W Examples are given of options available for management approaches ... : The application of potential conservation measures listed in Article IX 2 of the Convention requires ... regions might suffice as an initial basis for a workable management regime, under the ecosystem ... ecological basis. AN ECOLOGICAL BASIS FOR DELINEATING CONSERVATION AREAS water circulation and ... specified. Two or three of these systems are of large scale and were suggested as habitats for ... krill within major gyres has led to an examination of samples for evidence of morphological or ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 513-535 : Auteur(s): Chittleborough, R.G.
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Management and assessment options for the crab fishery around South Georgia
for a conservative approach to management. Such an approach includes the use of catch/effort controls ... Paper Title: Management and assessment options for the crab fishery around South Georgia Abstract ... / Description: A new fishery for the lithodid crab, Paralomis spinosissima, started in Subarea 48.3 in 1992 ... . The fishery is also new to CCAMLR, both in terms of the species and fishing gear. We provide an ... exploitable part of the stock. The target for the Alaskan king crab is between 20 and 60% depending on ... , A.M. Kuris and M.J. Fogarty) for useful comments and suggestions on an earlier draft. The inclusion ... and fishing gear. We provide an overview of the management options for crab fisheries in general and ... Convention point to the need for a conservative approach to management. Such an approach includes the use of ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 193–202 : Auteur(s): Basson, M. and D.D. Hoggarth
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Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1, 48.2 and 88.3)
Paper Title: Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1 ... system) were used for the operation, with variable quantities of fish hooks (1 440 to 4 320), No. 9 ... /hook (Subarea 88.3), 19.1 g/hook (Subarea 48.1) and 3.0 g/hook (Subarea 48.2), and an average over all ... , 48.2 and 88.3) Abstract / Description: During February and March 1998, a 43-day cruise on FV Tierra ... occurs. The search for new fishing areas will have an impact on present and future fisheries for D ... ), Exploratory fishing for Dissostichus spp. which is required in the CCAMLR Convention Area. Two research ... of males ranged between 37 and 142 cm, with an average of 78.5 cm (SD = 25.1), while for females it ... for both sexes. This gives an average yield of 59% for the HGT product. With the maturity scale ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 1–17 : Auteur(s): Arana, P.M. and R. Vega
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Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution
parameter. The remaining two estimators based on haul-level frequencies are derived from models for the ... year is important for such assessments, and this issue is studied using simulation. Between-haul ... gave accurate estimators of an ESS that is appropriate for haul-level heterogeneity with increasing ... , including a method based on an approximate profile maximum likelihood estimate (PMLE) of the D-M dispersion ... centred year value obtained from the integer values of year, y, so that for a 20-year simulation period ... year of the 20-year simulation period to 8.12 for the last year with a value at year 10.5 of 7. For ... , but in this case, declining from 196 939 for year 1 to 3 061 for year 20 with a value of 100 000 at ... for the empirical coefficient of variation (CV) in the proportions, with one being based on an ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Auteur(s): Candy, S.G
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Joinville–D’Urville Islands (Subarea 48.1) – a former fishing ground for the spiny icefish (Chaenodraco wilsoni), at the tip of the Antarctic Peninsula – revisited
Paper Title: Joinville–D’Urville Islands (Subarea 48.1) – a former fishing ground for the spiny ... Expedition ANT XIX/3 by RV Polarstern in February 2002. Five hauls were conducted north of the two islands at ... , sparse, being restricted to the two seasons (1978/79 and 1979/80) when Polish and GDR vessels fished in ... depths of 149 to 282 m on 21 February 2002. Published and unpublished reports from fishing operations in ... two concentrations of C. wilsoni at 62°20’–62°30’S 55°30’–56°00’W in the northern part of the shelf ... the west. Two- to four-year-old fi sh lived pelagically at 20–120 m over depths of 200–400 m ... avail- able for two seasons, 1978/79 and 1979/80. Polish Kock et al. 4 and GDR vessels fi shed ... . Ikthiol., 20 (4): 644–655. Translated as J. Ichthyol., 20 (4): 50–60. -63° 0' -62°30' -62° 0' -61°30 ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 1–20 : Auteur(s): Kock, K.-H., L. Pshenichnov, C.D. Jones, K. Shust, K.E. Skora and Zh.A. Frolkina
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CCAMLR ecosystem monitoring and a feedback management procedure for krill
Paper Title: CCAMLR ecosystem monitoring and a feedback management procedure for krill Abstract ... Ecosystem Monitoring Program might be incorporated into a feedback management strategy for this fishery ... principles for fisheries regulation from an ecosystem perspective. In: Selected Scientific Papers, 1986 (SC ... management should be developed for the krill fishery (CCAMLR, 1991 .: paragraph 4.9). The Working Group on ... , Article IT can be translated, in the case of the predators, to ask the general question "Will fishing for ... relationships as described in Article 11. As a result, the goals in predator protection for the kriU fishery ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 345–350 : Auteur(s): Constable, A.J.
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Standardization of fishing effort for Champsocephalus gunnari in the South Georgia area (Subarea 48.3)
Paper Title: Standardization of fishing effort for Champsocephalus gunnari in the South Georgia ... inflexible in its use of data types and has no estimate of accuracy. A standardized CPUE index for ... the values selected to standardize the model. The mean coefficient of variation for the CPUE values ... was 0.399. File: 20-Gasiukov.pdf ... data since 1981/82 could be used. However, it should be noted that for the first two years of this ... estimates for the first two fishing seasons used for calculations is especially noticeable on the graph ... certain year. A standardized value for catch-per-effort for a given type of category is calculated by ... effort for a number of years of fishing are used as additional information (Pope and Shepherd, 1985 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 327–336 : Auteur(s): Gasiukov, P.S.