Search results

1. Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica

   integridad. 1. INTRODUCTION In the last 10 years, a number of studies have highlighted the impacts ... that bottom trawling in the past 20 years has had a considerable effect on the community structure ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 403–410 : Author(s): Constable, A.J.

2. Attribtuion of acoustic echoes to squid in the south Atlantic

   , for a review of acoustic assessments of squid). METHODS In early February 1996 the RRS James Clark Ross ... in the previous year had suggested that this area was being actively targeted by foraging birds ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 259–271 : Author(s): Goss, C., P. Rodhouse, J.L. Watkins and A.S. Brierley

3. A review of the trophic role of mesopelagic fish of the family Myctophidae in the Southern Ocean ecosystem

   " to 65"s; sometimes even further south) where ACC waters extend southward. Years of research ... of other countries are also used in discussions. RESULTS AND DISCUSSION Myctophids are part ... by high concentrations of zooplankton not only during the summer peak, but throughout the entire year ... in recent years in the PFZ for all three ocean basins shows that the biomass of this species may account ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 71–77 : Author(s): Kozlov, A.N

4. Book review – Biogeographic Atlas of the Southern Ocean

   dating back to ~390 Ma (in the Early­Middle Devonian) with the impor­ tance of refugia and polynyas ...

   Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 45-46 : Author(s): Reid, K.

5. Midwater trawl catchability in relation to krill and possible ways of assessing gross catch

   and netting and also the probability that krill will come into contact with various parts of the net ... as it passes through the trawl sides. Studies were based on the results of 250 hauls made with a 72 ... /308 trawl. Catchability was worked out with the aid of fine-meshed chafers, hydroacoustic methods and ... theoretical calculations. A comparison of the experimental hydroacoustic assessment with the calculated one ... and also the probability that krill will come into contact with various parts of the net as it passes ... through the trawl sides. Studies were based on the results of 250 hauls made with a 72/308 trawl ... . Catchability was worked out with the aid of fine-meshed chafers, hydroacoustic methods and theoretical ... calculations. A comparison of the experimental hydroacoustic assessment with the calculated one demonstrated ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Author(s): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov

6. Target strengths of krill at 136 and 20 kHz

   into the ability of krill to reflect sound ("reflectability") has been going on for more than ten years ... . 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 ...

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

7. Seabird by-catch by autoline vessels: do line setters increase the sink rate of integrated weight longlines?

   other countries and is derived from subjective assess- ments of gear set with and without a line setter ... integrated weight longlines? Abstract / Description:  Line setters are used with integrated weight (IW) (50 g ... the sink rates of IW longlines. Time-depth recorders were deployed on lines set with and without a ... line setter using a paired-treatment design. Sink rates of longlines set with and without a line setter ... likely to be most intense. Longlines deployed with the line setter entered the water several metres ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 107–114 : Author(s): Robertson, G., J. Williamson, M. McNeill, S.G. Candy and N. Smith

8. A hybrid approach to acoustic classification and length estimation of krill

   M. Azzali , I. Leonori and G. Lanciani Istituto di Scienze Marine ISMAR-CNR Sezione Pesca Marittima ... , are summarised in Table 5. The dis- crimination of the two euphausiid species obtained by the three-frequency ... f d f δ Δ Δ Δ . The relative error |δ| is high for afj / fi < a1, decreases approaching the middle point between the two ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 33–58 : Author(s): Azzali, M., I. Leonori and G. Lanciani

9. Soviet proposals for a program of ecosystem monitoring in the Commonwealth Sea and Prydz Bay

   is situated in the Antarctic high-latitude zone, it will be difficult to conduct all-year-round ... investigations. Even so, it is necessary to have data collected every year for the spring, summer, and autumn ... seasons and, in particular years, the winter season as well. The total time dedicated ... to an observation series will depend on the scientific findings obtained each year. - 362 - 4. PARTICIPANTS ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 355-362 : Author(s): USSR

10. Some specific features of the USSR krill fishery and possibilities of applying fishery statistics to studies of krill biology and stocks

    krill fishery, it is shown that the catch-per-haul variables are associated with the fishing regime of ... the vessel rather than with krill abundance in a certain area. During preparations for regular fishing ... operations very short hauls (under 15 minutes) are practised. Such fishing practice, together with ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 237–252 : Author(s): Dolzhenkov, V.N., T.G. Lubimova, R.R. Makarov, S.S. Parfenovich and V.A. Spiridonov

Pages