Résultats de la recherche

1. Decline of Antarctic fur seal (Arctocephalus gazella) population at SSSI No. 32, South Shetlands, Antarctica, during 1997/98: a discussion of possible causes

   Abstract:  Little is known of what happened after the exploitation period with the population of ... date logistic model that describes pup population increase from 1965/66 to 1997/98. During this last ... also lower than last year. We hipothesize that large scale fluctuations in physical oceanographic ... be changing krill abundance and distribution, in turn affecting local predator reproductive ...

   Meeting Document : WG-EMM-98/17 : Auteur(s): R. Hucke-Gaete, D. Torres, A. Aguayo and V. Vallejos (Chile)

2. Swimming speed and allocation of time during the dive cycle of Antarctic fur seals

   descent and ascent phases of dives with a reduction in speed near the bottom of the dive, when the seals ... were assumed to be feeding on krill. Surface interval increased as a curvilinear function of dive ... duration and was influenced by diving swimming speed. This relationship was, on average, close to that ... predicted by a model (Houston & Carbone, Behav. Ecol., 3, 255-265) which suggested that the metabolic ...

   Meeting Document : WG-EMM-95/25 : Auteur(s): Bevan, R.M., Boyd, I.L., Reid, K.

3. Growth and shrinkage in Antarctic krill Euphausia superba is sex-dependent

   period is critical to their success. Laboratory evidence suggests that krill may shrink in body length ... during this time in response to the low availability of food. Nevertheless, verification that krill can ... and compared our results with those obtained from a combination of science and commercial sampling ... of the ovaries and is not necessarily an outcome of winter hardship. The sex-dependent changes that ...

   Meeting Document : WG-EMM-16/P04 : Auteur(s): G. Tarling, S. Hill, H. Peat, S. Fielding, C. Reiss and A. Atkinson

4. Gonad analysis of Antarctic toothfish in Subareas 58.4 and 88.3

   found to be 0.50, and displayed the tendency of increase with increase in the total length 140 cm. The ... -synchronous type. In the ovaries of growing stage, initial vitellogenic oocytes with approximately 150 ㎛ of ... of the cortex of the testicular lobule. It was possible to observe spermatids that illustrated ... . Frequency of ovarian development stages of Antarctic toothfish showed the highest proportion with 45.4% at ...

   Meeting Document : WG-FSA-17/09 : Auteur(s): J. Kim, S.-G. Choi, J. Lee, J. Lee and D. An

5. Norwegian Cruise to Kong Håkons VII Hav 28 February – 10 April 2019

   made. Most of the samples are still being processes so any results must be used with caution. Author(s ... April 2019. Our focus area was the ocean south of 65°S east of 0° meridian and 13.5° E (Fig 1) with a ... contained in addition to the ROV transect, benthic sampling with appropriate gear, fish and krill trawling ... , long line and 3-4 CDT station with extensive water sampling for primary production and water chemistry ...

   Meeting Document : WG-EMM-2019/48 : Auteur(s): H. Steen

6. BEACH DEBRIS SURVEY – MAIN BAY, BIRD ISLAND, SOUTH GEORGIA 2006/2007

   on the survey beach during the summer, plus another snood in winter (August). Both snoods were ... plastic packaging bands were recovered, suggesting that measures introduced by CCAMLR to control their use ...

   Meeting Document : WG-FSA-08/24 : Auteur(s): F. Le Bouard (UK)

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

   Abstract:  Traditional calculation of catch age composition estimate requires that the age-length ... data and random length frecuency be sampled from the same population, in other case an age-length key ... with the aplication of a single age-length key to all monthly length distribution using the nonlinear ...

   Meeting Document : WG-FSA-92/23 Rev. 1 : Auteur(s): H. Robotham V. and Z. Young U. (Chile)

8. CPUEs and body length of Antarctic krill during 1994/95 season in the fishing grounds around the South Shetland Islands

   Elephant Island Krill with a modal length of 48-50mm were dominant in catches, extreamly larger than the ... previous season. Author(s):  Naganobu, M., Ichii, T., Kawaguchi, S. Title:  CPUEs and body length of ...

   Meeting Document : WG-EMM-96/47 : Auteur(s): Naganobu, M., Ichii, T., Kawaguchi, S.

9. CPUES and body length of Antarctic krill during 1993/94 season in the fishing grounds around the South Shetland Islands

   Island. Krill with a modal length of 41-45mm were dominant in catches, almost same as the previous season ... . Author(s):  Kawaguchi, S., Ichii, T., Naganobu, M. Title:  CPUES and body length of Antarctic krill ...

   Meeting Document : WG-EMM-95/51 : Auteur(s): Kawaguchi, S., Ichii, T., Naganobu, M.

10. Hatching season and growth of Pleuragramma antarcticum larvae near the Antarctic peninsula in austral summer 1993/94

    increments was 178.3 (standard deviation = 12.8). With the samples we examined, we speculate that there exist ... toward the edge maintaining the size of ca. 0.5 μm. Assuming that a growth increment was deposited daily ... after hatching, P. antacticum seems to be hatched during June- July, because the mean number of ...

    Meeting Document : WG-EMM-96/65 : Auteur(s): Cha, S.S., Lee, T.W., Kim, S.

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