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1. Status of the krill stock around Elephant Island in 1991/92 and 1992/93

   other years appears to be associated with female maturity development and spawning during early summer ... during austral summer 1991/92 and 1992/93 are described and compared with information from previous years ... . The length frequency distributions and maturity stage composition reflected relatively good year class ... success from the 1990/91 spawning season but poor success from 1991/92. Year class success from these and ...

   Meeting Document : WG-KRILL-93/08 : Autor(es): V. Loeb (USA) and V. Siegel (Germany)

2. Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories

   consecutive years, including 3 years when several indices showed that food availability was well below average ... age classes with the highest reproductive output (ages 5-8 years). 5. Mean pregnancy rate was 0•70 (SD ... age 3–4 years, pregnancy rate peaked at age 8 years and declined thereafter. Otherwise pregnancy rate ... . 2. Population age structures were used, in conjuction with the measured age-specific survival rates ...

   Meeting Document : WG-EMM-95/26 : Autor(es): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.

3. Habitat partitioning in Antarctic krill: spawning hotspots and nursery areas

   whether “hotspots” of egg production and early stage nursery occurred, and secondly whether the available ... extracted data spanning 41 years (1976-2016) from the existing KRILLBASE-abundance and KRILLBASE-length ... slope. This contrasts with the distributions of calyptope and furcilia larvae, which were concentrated ... temperature suggest that krill associate with different habitats over the course of their life cycle. From the ...

   Meeting Document : WG-EMM-2019/20 : Autor(es): F. Perry, A. Atkinson, S.F. Sailley, G.A. Tarling, S.L. Hill, C.H. Lucas and D.J. Mayor

4. Krill length and age at maturity

   identical for krill. Comparisons with length at age data show that females mature in the third year of the ... life cycle (age class 2 +), while males reach maturity in the fourth year as age class 3 +. Both sexes ... later at a length between L50 = 43.33 and 43.79 mm. Length at maturity, and length at first spawning are ...

   Meeting Document : WG-KRILL-93/40 : Autor(es): V. Siegel (Germany) and V. Loeb (USA)

5. Prioridades de los grupos y subgrupos de trabajo para los próximos 4 años

   next 4 years. This is solely a task for WG-EMM but will require close interactions with other groups to ... -FSA does not have to sit for two weeks every year and a shorter meeting in non-assessment years could ... work could be streamlined. In early September the Chair and the Vice Chairs of the Scientific Committee ... , and Conveners of the Working Groups and Subgroup, together with the Secretariat held a tele-conference ...

   Meeting Document : SC-CAMLR-XXXIV/14 : Autor(es): Conveners of WG-EMM, WG-SAM, WG-FSA and SG-ASAM

6. Evaluation of Antarctic krill biomass and distribution off the South Orkney Islands 2011-2015

   coverage in all years except 2013. The results show that except from the year 2015, krill densities were ... early in the fishing season (January/February), using two different krill fishing vessels as platforms ... . The vessels were equipped with similar Simrad echo sounder systems suitable for quantitative ... assessments, but the frequencies operated varied between vessels and years. In addition, the survey coverage ...

   Meeting Document : WG-EMM-15/54 : Autor(es): G. Skaret, B.A. Krafft, L. Calise (Norway), J. Watkins (UK), R. Pedersen and O.R. Godø (Norway)

7. The age structure and growth rate of Patagonian toothfish (Dissostichus eleginoides) at South Georgia

   . Evidence for the separation of early year classes is presented along with mean sizes for each age class ... . Age length keys indicate that fish enter the fishery at 7 years and are fully recruited at between 10 ... and 11 years. Author(s):  M. Belchier (United Kingdom) Title:  The age structure and growth rate of ...

   Meeting Document : WG-FSA-04/86 : Autor(es): M. Belchier (United Kingdom)

8. Biological characteristics of Antarctic fish stocks in the Southern Scotia Arc region

   within one season. Length at sexual maturity and length at first spawning in C. gunnari is one year later ... to 1989/90, with its heydays from 1977/78 to 1981/82. Except for Elephant Island, the state of fish ... catches in the first four years of the fishery and the possibility to sample these catches extensively ... evidence for illegal fishing since the closure of the region some 10 years ago. Differences in length ...

   Meeting Document : WG-FSA-99/16 : Autor(es): K.-H. Kock (Germany), C. Jones (USA) and S. Wilhelms (Germany)

9. An assessment of temporal variability and interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island

   (brooding counts, 2/3 crèche counts and fully crèched chick counts) show large temporal variability while ... the correlation of each parameter with breeding success. Breeding success was measured in terms of 1 ... nest with eggs. We found a low degree of correlation between incubating and brooding nest counts which ... foraging trip duration was correlated negatively to breeding success. Additionally, we examined within ...

   Meeting Document : WG-EMM-02/46 : Autor(es): L.M. Emmerson, J. Clarke, K. Kerry and C. Southwell (Australia)

10. Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000

    in the early 1980’s, along the shelf slope in the mid- to late 1980’s, and were highly variable, from ... the shelf across to the outer shelf in the early to late 1990’s. Intra-annual variation of trawling ... positions showed a general pattern starting from the outer shelf, and proceeded towards the shelf later in ...

    Meeting Document : WG-EMM-01/35 : Autor(es): S. Kawaguchi and K. Segawa

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