Результаты поиска

1. Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution

   simulated data from the Dirichlet-multinomial distribution Abstract / Description:  The incorporation of ... ‘effective sample size’ (ESS) in integrated assessments is an approximate but simple way of modelling the ... heterogeneity within fishing year was simulated using samples from the Dirichlet-multinomial (D-M) distribution ... its variants. One of the methods is based on the lack-of-fit of predictions of class probabilities ... (glm) examined is that of estimating yn′ in the above way after fitting this sim- ple linear ... residual mean deviance, then the ESS adjusted for process error, after removing SLOF, is given by ˆˆ ˆ ... beginning of the initialisation period. For Model 5, the simulation was the same as Model 1 for the ... thE dirichlEt-multinomial distribution S.G. Candy Department of the Environment, Water, Heritage ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Автор(ы): Candy, S.G

2. Management and assessment options for the crab fishery around South Georgia

   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 ... overview of the management options for crab fisheries in general and then consider these options in the ... closed before the nominal end-of-season, either when the quota is reached or for other biological ... miles of the continental shelf, from 22" to 27"s and between 500 and 700 m, at the lower end of the ... essential because of the size and heterogeneous nature of the terrain. Only after investigation of data at ... ASSESSMENT OPTIONS FOR THE CRAB FISHERY AROUND SOUTH GEORGIA M. Basson Renewable Resources Assessment ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 193–202 : Автор(ы): Basson, M. and D.D. Hoggarth

3. A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia

   Paper Title:  A comparison between otoliths and scales for use in estimating the age of ... understanding the population dynamics and productivity of a fish stock. The use of scales to estimate age can ... whose age has been estimated using both scales and otoliths. We estimated the age of D. eleginoides ... ; for otoliths, we used transverse sections prepared by baking and grinding the posterior and anterior ... that the oldest age was 23 years. Large numbers of fish in unexploited populations survived after ... as one year if the fish was taken after 1 July but not before. Scales Typically, annuli on ... easily identified when bisectilig the radii. Cornpressed circuli marking the end of the first annulus ... BETWEEN OTOLITHS AND SCALES FOR USE IN ESTIMATING THE AGE OF DISSOSTICHUS ELEGINOlDES FROM SOUTH ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Автор(ы): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson

4. Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed with mitochondrial and intron DNA markers

   Paper Title:  Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed ... digests of nine sub-regions of the mitochondrial genome. Polymorphisms were found in four of seven introns ... digested with the restriction enzymes, but there was no population differentiation among the three sea ... areas. Direct sequencing of cytochrome b (665 bp) and the left domain of the control region (639 bp ... A ~0.7 kb fragment including the 3’ end of the cytochrome b gene, tRNA-Thr, tRNA-Pro, and a 5 ... the 13 recaptures, there was one long-distance movement, almost 800 km north (72°S) after 3.3 years ... . 12 (2005): 43–51 43 LOW GENETIC DIVERSITY IN THE ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI ... detected with restriction enzyme digests of nine sub-regions of the mitochondrial genome. Polymorphisms ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 43–51 : Автор(ы): Smith, P.J. and P.M. Gaffney

5. Fishery Report: Dissostichus eleginoides (TOP) Crozet Island inside the French EEZ (Subarea 58.6)

   , with a mode at approximately 70–80 cm at the beginning of the series, and 55–80 cm in recent seasons ... Appendix L Fishery Report: Dissostichus eleginoides (TOP) Crozet Island inside the French EEZ ... (Subarea 58.6) CONTENTS Page 1. Details of the fishery ... of the longline fishery ....................................................... 4 4. Stock ...

   Document : Site Section: Publications

6. BEACH DEBRIS SURVEY AT CAPE SHIRREFF, LIVINGSTON ISLAND, DURING THE ANTARCTIC SEASON 1996/97

   removed from the animals after being immobilized with a piece of net obtained from the stranded garbage ... Abstract:  During the Antarctic season 1996/97 a beach debris survey was carried out on the ... plastic pieces to avoid that tllis material may enter the CEMP Site during storms and windy weather. As it ... occurred in all previous seasons with monitoring activities, plastic was the principal item (1517 pieces ...

   Meeting Document : CCAMLR-XVI/BG/35 : Автор(ы): Delegation of Chile

7. Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic

   with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic Abstract ... 169 to 2 150 m. Most effort was concentrated along the 1 000 m depth contour. Sperm whales were the ... most abundant marine mammal observed in the vicinity of vessels when lines were being hauled, being ... present during 24% of hauling observations. Killer whales, the second most frequently sighted cetacean ... the mid-point between the start and end positions, were plotted for the selected voyages using GIS ... with the vessels, temporal patterns and the effect on catch rates. After the 2000 season, in order to ... occasions that killer whale interactions became less frequent after sunset, but this was not always the ... ) INTERACTIONS WITH LONGLINE VESSELS IN THE PATAGONIAN TOOTHFISH FISHERY AT SOUTH GEORGIA, SOUTH ATLANTIC M.G ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 111–126 : Автор(ы): Purves, M.G., D.J. Agnew, E. Balguerías, C.A. Moreno and B. Watkins

8. Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf

   the Ross Sea shelf Abstract / Description:  This paper summarises knowledge of the distribution and ... relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf (defined here as the ... continental shelf out to the edge of the shelf break at about 600–800 m depth). The focus is on D. mawsoni ... catches from the shelf, as this area is likely to have the greatest overlap between D. mawsoni and ... end positions of the set as recorded in C2 data. Results Ross Sea fishery Details of the ... 38 52.7 1.39 0.53 1 An additional New Zealand vessel completed three sets at the end of the season ... location was changed by several kilometres after the 2000 fishing season due to changes in fast-ice ... toothfish catches seen at McMurdo Sound after the fishing location had changed. Testa et al. (1985) showed ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 33–51 : Автор(ы): Hanchet, S.M., S. Mormede and A. Dunn

9. Chilean krill fishery: analysis of the 1991 season

   Paper Title:  Chilean krill fishery: analysis of the 1991 season Abstract / Description:  This ... paper summarises Chilean catch data for 1991. Special emphasis is given to the analysis of haul-by-haul ... data and its use in studying small-scale spatial distribution of catches. The results show that krill ... -per-day was 108 tonnes, a maximum of 160 tonnes was obtained at the end of the season. A total of 419 ... both variables "dies out" after five hauls, suggesting that on average the vessel move away from a ... patch after five hauls. This result was independent of the area fished, suggesting that although there ... WG-KRILL-9l/39 CHILEAN KRILL FISHERY: ANALYSIS OF THE ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Автор(ы): Marín, V.H., A. Mujica and P. Eberhard

10. The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters

    Paper Title:  The use of analysis of penguin stomach contents in simultaneous study of prey and ... sensitive to the statistical assumptions made during the analysis of data. The nested ANOVA method is ... proposed as being the correct approach for analysis because lack of independence between krill specimens ... found in the stomach of a given penguin prevents the pooling of krill lengths from different samples ... WG-CEMP-89/16 THE USE OF ANALYSIS OF PENGUIN STOMACH ... Size selectivity of krill by penguins is shown to be highly sensitive to the statistical assumptions ... made during the analysis of data. The nested ANOVA method is proposed as being the correct approach ... for analysis because lack of independence between krill specimens found in the stomach of a given ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Автор(ы): Marschoff, E. and B. González

Страницы