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1. Some aspects of the relation between Antarctic krill abundance and CPUE measures in the Japanese krill fishery

   -swarm density. Search time data may be needed to assess the density of swarms in a concentration, but ... may be difficult to record in practice, and a number of other factors may complicate any analysis. The ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 109–125 : Autor(es): Butterworth, D.S.

2. Toothfish, Dissostichus eleginoides, at South Georgia

   that the exploited fish are senescent and not contributing to the breeding population (CCAMLR-VIII ... longliner in January 1990 indicates that the fish are sexually mature and, at the time of sampling, are ... that a TAC of 1200 tonnes be set for Dissostichus eleginoides in Subarea 48.3. That estimate was based ... mm in diameter. The ova are in the developing phase consistent with the subjective observation that ... that they were at stage 2. The gonads from all fish in this sample are therefore consistent with the ... Georgia has expanded greatly in recent years. It has been claimed that the exploited fish are senescent ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 255–261 : Autor(es): Everson, I. and S. Campbell

3. Krill population biology during the 1991 Chilean Antarctic krill fishery

   and 55 mm TL, with a mean TL of 45 mm for females and 48 mm for males. A very weak mode for juvenile ... % juveniles. Of the females sampled, 25.2% bore spermatophores. Although the smallest specimen found with a ... spermatophore had a 36.5 mm TL, 80% of the females with spermatophores had a TL larger than 45 mm. In Area B, a ... bimodal size frequency distribution and a larger size range were found, with one mode between 32 and 55 mm ... between 30 and 55 mm TL, with a mean TL of 45 mm for females and 48 mm for males. A very weak mode for ... specimen found with a spermatophore had a 36.5 mm TL, 80% of the females with spermatophores had a TL ... , with one mode between 32 and 55 mm TL (mean length 43 mm for females and 46 mm for males), and the ... %, males 40% and juveniles 12.9%. Of the females sampled, 27.1 % bore spermatophores, with a size range ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 223–235 : Autor(es): Mujica R., A., E. Acuña S. and A. Rivera O.

4. Determination of Antarctic krill acoustic back-scattering cross-section

   -section of back-scattering of krill. The target strength can be determined in situ by measuring the echo ... -section of back-scattering of krill. The target strength can be determined in situ by measuring the echo ... -directional antenna is determined by expression With where em d A 1(7Td)2 e2 2" X- . m maximum ... Antarctic krill back-scattering. Assuming that the greatest value of the standardized echo signal ... directivity diagram can be determined as 2 .b G4 Lk . ritax max (10) mln -2 b Lk min By substituting ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 141-152 : Autor(es): Protaschuk, V.A. and T.A. Lukashova

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

   predator parameters Abstract / Description:  Size selectivity of krill by penguins is shown to be highly ... behaviour, makes it extremely difficult to ensure that the area of sampling coincides accurately with the ... . Obviously, penguins do not observe religious fasts stipulating that only smaller krill be eaten on ... period. It may be argued that some pertinent component may result from the changing preferences of ... Size selectivity of krill by penguins is shown to be highly sensitive to the statistical assumptions ...

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

6. Reproductive performance of seabirds and seals at South Georgia and Signy Island, South Orkney Islands, 1976-1987: implications for Southern Ocean monitoring studies

   synchronised with those at South Georgia; they correlate best (especially for chinstraps, which suffered badly ... in 1980-81 and 1982-83) with the date of ice break-out in late spring. Numerous parameters of ... -eating, summer-breeding penguins at Signy Island are not synchronised with those at South Georgia; they ... correlate best (especially for Chinstraps, which suffered badly in 1980-81 and 1982-83) with the date of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 445-447 : Autor(es): Croxall, J.P., T.S. McCann, P.A. Prince and P. Rothery

7. Note on estimating krill abundance from acoustic data on individual aggregations

   differences of the two approaches are highlighted. It is concluded that the echo-integration approach is ... Butterworth and Miller, 1987) have suggested that this information could be used to estimate krill abundance ... . It is important to note that the above estimators will only be valid if all the krill encountered is ... A the area surveyed. The problem with this estimator is that neither BAg nor SAg, nor their ... . It is concluded that the echo-integration approach is superior for the estimation of regional kriU ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 219–223 : Autor(es): Hampton, I. and D.G.M. Miller

8. Surveys of breeding penguins and other seabirds in the South Shetland Islands, Antarctica, January-February 1987*

   were also found to be more abundant than previously reported. (* Published in: NOAA Technical ... species of breeding seabirds were also found to be more abundant than previously reported. * published ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 449-451 : Autor(es): Shuford, W.D. and L.B. Spear

9. 1989/1990 stock status and TAC assessment for Patagonotothen brevicauda guntheri in South Georgia subarea (48.3)

   . Stock has been assessed at 123.1 thousand tonnes with a TAC of 28.3 thousand tonnes for the initial ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 101–110 : Autor(es): Shlibanov, V.I.

10. Age and growth of Antarctic euphausiacea (crustacea) under natural conditions

    eastern Weddell Sea. Former opinions that differ are discussed. Seasonal growth was re-analyzed for the ... . Former opinions that differ are discussed. Seasonal growth was re-analyzed for the species Euphausia ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 369-370 : Autor(es): Siegel, V.

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