Resultados de la búsqueda

1. Selectivity of commercial and research trawls in relation to krill

   / Description:  This paper describes the results of fishing a single krill aggregation with a commercial trawl ... COMMERCIAL AND RESEARCH TRAWLS IN RELATION TO KRILL S.M. Kasatkina Atlantic Research Institute of Marine ... This paper describes the results of fishing a single krill aggregation with a commercial trawl RT 72 ... speed was 3.5 knots. IKMT Station l 2 3 The IKMT is a midwater trawl with a length of 26.8 ... codend against mechanical wear and tear. The trawl is towed with a single wire. Station 1 2 3 ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 161–169 : Autor(es): Kasatkina, S.M

2. Fishing ground selection in the Antarctic krill fishery: trends in patterns across years, seasons and nations

   periods. This pattern was consistent throughout the entire period with sufficient data coverage. Catch ... were consistently reported, but at lower levels compared to the earlier days (with exception of a ... Fishing ground selection in the Antarctic krill fishery The USA is a new entrant into the krill fishery ... , beginning with the SSMUs in Subarea 48.1 earlier in the season. Trends in catches in the Japanese krill ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 117–141 : Autor(es): Kawaguchi, S., S. Nicol, K. Taki and M. Naganobu

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

   (Edwards and Heap, 1981). In this light the Convention on the Conservation of Antarctic Marine Living ... (Trivelpiece et al., 1986). For the purpose of estimating food requirements of penguins with dependent ... its Statistical Bulletin (CCAMLR, 1992 - Figure 25). Krill catches are displayed in map form, with ... of Table 15 of CCAMLR (1992). In order to compare catches with predator data, a critical period ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 287–303 : Autor(es): Agnew, D.J.

4. Results of fish larvae sampling by means of fine-meshed samplers attached to a bottom trawl

   similar to those taken by samplers made using 12 mm net with 0.505 mm insets. The 12 mm net was, however ... made using 12 mm net with 0.505 mm insets. The 12 mm net was, however, more vulnerable to damage. The ... Marine Living Resources (AMLR) Program. A bottom trawl survey was conducted aboard the RN Professor ... Siedlecki in cooperation with US scientists*. The sampling methods and gear were developed at the Sea ... attached to the trawl in 49 of the 118 hauls (Figures 1 and 2). Each pair consisted of one sampler with 12 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 69-86 : Autor(es): Ślósarczyk, W. and I. Wójcik

5. Simulation of recovery rates of fish stocks in the South Georgia and Kerguelen Islands areas

   average, with the past observations. The simulations may prove useful in comparing observed performance of ... simulated yields correspond, on the average, with the past observations. The simulations may prove useful ... year with no fishing on it. C. gunnari and N. gibberifrons around South Georgia Island were also ... with respect to C. gunnari and N. gibberifrons were put forward which included a range from no ... of the stock sizes and yield. Recruitment of new cohorts to the stock is the most important ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 229-298 : Autor(es): Hennemuth, R.C., K.D. Bisack and G. Duhamel

6. Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries

   Convention on the Conservation of Antarctic Marine Living Resources (CCAMLR). In some areas the macrourid ... weight (to the nearest 10 grams) of a random subsample of fi sh. Only fi sh with undamaged tails were ... accordance with this, anal length will be used as the standard for this species in all future work ... and the proportion of fi sh with maturity stages 2–5 and 3–5 in each length bin calculated. A ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 139–151 : Autor(es): van Wijk, E.M., R. Williams and A.J. Constable

7. Assessment of krill flux factors in waters of South Orkney Islands during summer 1996

   study area  perimeter. Mean krill transport rate was 7.2 tonnes/hour/n mile with a standard deviation of ... , V.N. Shnar, M.I. Polischuk, A.M. Abramov, V.A. Sushin Atlantic Research Institute of Marine Fisheries ... tonnes/hour/n mile with a standard deviation of 15.5 tonnes/hour/n mile. Significant variability of ... the study area boundary. The first experiment to comply with this conceptual framework was carried ... 1996 krill flux in Subarea 48.2 was studied for the first time in full conformity with the guidelines ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 195–204 : Autor(es): Kasatkina, S.M., V.N. Shnar, M.I. Polischuk, A.M. Abramov and V.A. Sushin

8. Target strengths of krill at 136 and 20 kHz

   . Ensonification of encaged live krill. For aggregations with mean lengths from 45 to 50 mm the mean single-krill ... target strengths range from-68 to-69 dB at 136 kHz. For aggregations with mean lengths from 43 to 47 mm ... . For aggregations with mean lengths from 47 to 50 mm the mean target strengths ranged from-71 to-75 dB ... . At the same frequency for aggregations with mean lengths in the range 41 to 47 mm the mean single ... aggregations with mean lengths from 45 to 50 mm the mean single-kriU target strengths range from -68 to -69 dB ... at 136 kRz. For aggregations with mean lengths from 43 to 47 mm the mean single-kriU target ... strengths range from -71 to -77 dB at 20 kRz. Trawl hydroacoustic method. For aggregations with mean ... aggregations with mean lengths in the range 41 to 47 mm the mean single-krill target strength is in the range ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 141–157 : Autor(es): Kasatkina, S.M.

9. Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects

   generalised linear model (GLM) with a square-root link function and a unit variance function. A time series of ... together with ‘baseline’ parameter estimates, their variance–covariance matrix, and the inverse-link ... function. An alternative GLM with a more rigorous theoretical basis is introduced here. Catch is modelled ... as the response variable using a GLM with a power variance function, with the power parameter (λ ... in a generalised linear model (GLM) with a square-root link function and a unit variance function. A ... ’ parameter estimates together with ‘baseline’ parameter estimates, their variance–covariance matrix, and the ... inverse-link function. An alternative GLM with a more rigorous theoretical basis is introduced here ... . Catch is modelled as the response variable using a GLM with a power variance function, with the power ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Autor(es): Candy, S.G

10. Results of fish stock assessment survey, South Georgia, December 1987 - January 1988

    ). The Commission for the Conservation of Antarctic Marine Living Resources has adopted a set of ... tows (at 3.5 Knots) were made by the R.V. Professor Siedlecki using a P32/36 otter trawl equipped with ... region. The biomass estimates for each species are summarized in Table 1 and are compared with earlier ... . The length data from Shag Rocks was combined with those from South Georgia for the discussion here ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Autor(es): McKenna, Jr., J.E. and S.B. Saila

Páginas