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1. Distribution, morphology and ecology of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) in the Ross Sea region

   . whitsoni caught with depth. Catches of females of both species exceeded that of males (especially for M ... teeth in the lower jaw allowed the two species to be distinguished both in the laboratory and by ... species are euryphagous predators and scavengers, with evidence of piscivory and both benthic and pelagic ... feeding. Amphipods were one of the main crustaceans consumed. Data tentatively suggest that M. caml may ... solid lines). Noting that the results should be treated with caution until more complete length-at-age ... . whitsoni caught with depth. Catches of females of both species exceeded that of males (especially for M ... to be normal with constant CV over length. Analysis was carried out in R (R Develop- ment Core Team ... and East strata, with a spatial distribution similar to that of other samples used in this study ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 37–61 : Autor(es): Pinkerton, M.H., P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown

2. Response to Everson (2008)

   these scales – that are most consistent with the observed survey data – to be used in the estimation ... reasons for their differences, be understood. Dr Everson has suggested that the mismatch between the ... wrong’ with either or both methods, and has implied that since, in his opinion, the MaxEnt approach is ... , particularly in the ways in which SD is calculated, and it is essential that these differences be considered ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 195–198 : Autor(es): Brierley, A.S., B.G. Heywood and S.F. Gull

3. Defining smaller-scale management units to further develop the ecosystem approach in managing large-scale pelagic krill fisheries in Antarctica

   ecosystem but should be sufficiently independent for fishing in that unit not to inadvertently affect ... the harvested species, and the ‘predator unit’, which does not have to be a relatively self-contained ... be used to help the CCAMLR Ecosystem Monitoring Program (CEMP) provide strategic advice on the ... circumscribing predator units as well as undertaking an assessment of long-term annual yield. It is proposed that ... shery could be concentrated in a small number of units in such a way that the relative fi shing ... been resolved, despite early consideration of the options that could be used to provide for an ... revision of the precautionary catch limit for krill, CCAMLR has requested that the krill catch limit be ... and the krill population can be matched with the larger scale of the fi shery (see Schneider, 1994 ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 117–131 : Autor(es): Constable, A.J. and S. Nicol

4. Discrimination of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) using otolith morphometrics

   -catch in the toothfish fishery and modelling suggests that they may be subject to predation release as ... otolith morphometrics Abstract / Description:  That the predominant by-catch of grenadier by the toothfish ... , was recognised in 2010 with the identification of a new species, M. caml. Grenadier are the main by ... identified 90% of otoliths to species and could be applied to otoliths removed from toothfish stomachs to ... = Macrourus whitsoni. WG2 = M. caml. One specimen of M. caml could not be sexed. A two-sided t-test with ... to be more abundant north of about 65°S and it is likely that M. whitsoni and M. caml are the main ... fishery and modelling suggests that they may be subject to predation release as the abundance of ... (Table 3) suggests that the limitations imposed by this sampling are likely to be small. The small but ...

   Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 15–28 : Autor(es): Pinkerton, M.H., C. Ó Maolagáin, J. Forman and P. Marriott

5. The utilization of seabird censuses for krill monitoring

   Ocean is explored. No variation source directly linked with krill was identified by means of ... capable of detecting changes in bird abundance and/or species composition, associated with three levels of ... krill abundance. A vector close to multi-normality was obtained, thus suggesting that refinements of the ... efficient tool for statistical tests of significance. The most promising approach seems to be the ... hypothesis testing with the material at hand. Methods that can be used for comparison with other data sets ... of Fx(t) represented as ordinates of the abscissa (t). In that way, each point will be replaced by ... ships are an inexpensive and simple methodology which can be performed with a minimum of training, thus ... of being investigated. It is to be noted that bird observations can be carried out from any ship ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 393-425 : Autor(es): Marschoff, E.R., J.G. Visbeek and L.R. Fontana

6. Effect of line sink rate on albatross mortality in the Patagonian toothfish longline fishery

   -setting characteristics similar to the experimental vessel, this sink rate should be achievable with 4 kg ... vessels to derive a sink rate and line-weighting regime that would minimise the capture of albatrosses ... weights. Asymptotic sink rates (0.1-0.15 m/s) were achieved with 70 m intervals between 6.5 kg weights ... . Sink rates to 4 m depth were greatest with 35 m (0.44 m/s) and 50 m (0.33 m/s) between weights. For ... respectively, so that results of sink-rate trials can be placed in context with the fishing operations and ... kg/70 m) of longline. With this amount of weight, sink rates >0.3 m/s would be expected. Note that ... hooks to seabirds. With the In Sung 66 it is to be expected that the different line configuration ... experimental vessel, this sink rate should be achievable with 4 kg weights distributed every 40 m on longlines ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 133–150 : Autor(es): Robertson, G.G

7. Maximum entropy reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia, 1996–2000

   that do fi t the data can be sorted into piles of images that are the same, and the largest pile will ... be exploited together with new known data (Sivia, 1996). Furthermore, Skilling (1988) has shown ... converge on a reconstruction that is most consistent with the observed data and for which the entropy is ... . Most of the monkeys’ images will not be consistent with the data and can be ignored. All the images ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 91–100 : Autor(es): Wafy, M.H., A.S. Brierley, S.F. Gull and J.L. Watkins

8. Results of Soviet investigations of the distribution and ecology of pelagic squids (Oegopsida) in the Southern Ocean

   total of 326 squid specimens were collected at 124 stations with sampling by midwater nets. 125 ... specimens of that total were identified as Brachioteuthis riisei. In recent years (1978-1984) the collection ... stomachs. All species are divided into three major groups in accordance with their habitats: tropico ... coucerned, it is assumed that specimens with mantle smaller t han 100 cm are immatur.e. With the same ... knowledge of the group of Antarctic pelagic cephalopods seems to be due to the fact that they are rarely ... the Atlantic Ocean, it is shown that the Gulf Stream appears to be a mechl!..Oiem reepo~eible for ... that all species of squids occurring in the Southern Ocean in snmmer can be clearly divided into ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 79-111 : Autor(es): Lubimova, T.G.

9. An iterative model to construct an age/length key to assess the age composition of a new fishery for Dissostichus eleginoides in Chilean waters

   estimation of age composition of catch requires that age/length data and random length frequency have been ... could be biased. By using an iteration algorithm it is possible to overcome this limitation. The age ... composition of catch for Dissostichus eleginoides was obtained with the application of a single age/length key ... that age distribution derived from the model is not significantly different from the one obtained by ... estimation of age composition of catch requires that age/length data and random length frequency have been ... could be biased. By using an iteration algorithm it is possible to overcome this limitation. The age ... composition of catch for Dissostichus eZeginoides was obtained with the application of a single age/length ... that age distribution derived from the model is not significantly different from the one obtained by ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 11–20 : Autor(es): Robotham, V. H. and Z. Young U.

10. Differentiation of independent populations of Antarctic krill

    circulation. On the basis of the review, it is suggested that there is probably one composite population of E ... -populations is expected to correspond with the number of quasi-stationary cyclonic water circulations. At ... present, at least six stable cyclonic water circulations can be found and at least two or three of them ... may be habitats of independent krill sub-populations. A proposal is given for future studies into ... that in the Southern Ocean there is only one cyclonic circulation with its centre in the Weddell ... with five pairs of pleopods without setae). It is assumed that this path of development corresponds ... Weddell Drift, Le. is a part of the circulation in the Weddell Sea. It will be recalled that there are ... three of them may be habitats of independent krill populations. The possibility that conditions for ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Autor(es): USSR

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