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1. Assessment and tag program adaption methods for exploratory fisheries in the CAMLR Convention Area: an example application for Division 58.4.3a

   combination of the assessment and tagging rate adaption methods can then form the basis of an early management ... eleginoides) in Division 58.4.3a with catch limit and tag-rate recommendations being made given the assessment ... tagging levels that will produce an expected abundance estimate in the following year of a given precision ... (right) fleets. In years with no catches these will obviously be zero, and 2007 total harvest rate is ... 0.13 with a 10% CV, and for age-at-maturity a value of 13 years with again a CV of 10%. The resultant ... using a single release event, with a recapture event in the following year/season, as required. As ... given year or years. No dispersion terms were estimated for the recapture event for obvious reasons ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 101–113 : Autor(es): Hillary, R.M

2. Line weights of constant mass (and sink rates) for Spanish system Patagonian toothfish longline vessels

   with seabirds. The weights typically used are collections of rocks enclosed in netting bags. During ... fishing operations the netting bags abrade on the seabed causing rocks to be lost and the weights to ... relationship between the sink rates of longlines equipped with bags of rocks (4, 6 and 8 kg) and those with ... steel weights of equivalent masses. The purpose of the experiment was to provide vessel operators with ... mass (Table 3). Although Chilean longlines with steel weights attached were faster to the seabed than ... smoothing splines (with discussion). Appl. Stat., 48 (3): 269–311. Liste des tableaux Tableau 1: Poids ... 40 m intervals on longlines to minimise interactions with seabirds. The weights typically used are ... seabed causing rocks to be lost and the weights to become progressively lighter, requiring ongoing ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 93–106 : Autor(es): Robertson, G., C.A. Moreno, E. Gutiérrez, S.G. Candy, E.F. Melvin and J.P. Seco Pon

3. Age and growth of spiny icefish (Chaenodraco wilsoni Regan, 1914) off Joinville–D’Urville Islands (Antarctic Peninsula)

   consisted mainly of adult individuals between 1 and 3 years of age, with very few older fish.   File ... not tested, so that present ageing data haveto be considered with caution. The estimated age range was ... 1–5 years for males and 1–4 years for females of C. wilsoni. Applying the von Bertalanffy (VB ... males. Age-at-sexual maturity was estimated to be about 2 years for females and 2.5 years for males ... age classes 3 and 4, with very few fish aged 2 and 5 years (Cielniaszek, 1981). This appears to be ... to be considered with caution. The estimated age range was 1–5 years for males and 1–4 years for ... years of age, with very few older fish. Résumé L’étude de l’âge et de la croissance de la grande ... Joinville– D’Urville Islands. Age (years) Females Males TL (cm) 1 2 3 4 1 2 3 4 5 18 1 19 2 ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 115–130 : Autor(es): La Mesa, M., A. De Felice, C.D. Jones, K.-H. Kock

4. Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates

   individual vessel, but the analysis is later extended to vessel- season (trip), and to vessel-seasons ... most recent three years of data, 2 is the previous three years and 3 the oldest three years where ... years 2000–01 to 2010–11. Document WG-FSA-11/46. CCAMLR, Hobart, Australia: 32 pp. Year of release ... rates, and therefore, including observations from vessels with low detection rates, could lead to an ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Autor(es): Mormede, S. and A. Dunn

5. Areal and seasonal extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 to 1996

   four periods of extensive ice cover during the last 18 years. Variability in seasonal timing, areal ... extent, seasonal duration and persistence of sea-ice over multiple years is apparent and is consistent ... with features described by Stammerjohn and Smith (1996) for ice cover in the Bellingshausen Sea ... ice cover during years between periods of extensive ice cover decreased during the second half of the ... 1988 1989 1990 1991 1992 1993 1994 1995 1996 Year Area Covered with Ice 106 km' Figure 3: Areal ... years is apparent and is consistent with features described by Stammerjohn and Smith (1996) for ice ... years. It is anticipated that the annual index may be easily updated with new data, facilitate ... periodicity of five to eight years in ice cover and note a five-year periodicity apparent in the air ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 65–73 : Autor(es): Hewitt, R

6. The status of krill (Euphausia superba DANA) resources in CCAMLR Statistical Divisions 58.4.2 and 58.4.3 from 1988 to 1990. Results of acoustic surveys

   abundant 1986 and 1987 year-classes and with a diminished rate of emigration of krill of these year-classes ... paper. It was found that the increase in krill biomass observed in the area in 1990 is linked with the ... density was 41 g/m2. In the eastern part of the area, krill was found in loose aggregations with a mean ... to 1979, but considerably higher (3 to 4 times) than in 1986/1987. On the basis of many years of ... in krill biomass observed in the area in 1990 is linked with the abundant 1986 and 1987 year-classes ... and with a diminished rate of emigration of krill of these year-classes from the area in 1989/1990 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 163–173 : Autor(es): Bibik, V.A. and V.N. Yakovlev

7. Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean.

   . mawsoni on BANZARE Bank is similar to that hypothesised for the Ross Sea population with analogous ... . (1983) found D. eleginoides in areas with surface temperatures higher than 3°C. Gon and Heemstra (1990 ... Toothfish are the largest nototheniid species in the Southern Ocean, with two species having a cir ... population with analogous latitudinal patterns in sexual maturity and size composition. The study indicates ... Hureau, 1985; Gon and Heemstra, 1990). However, there is over- lap with D. eleginoides and confusion ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 145–153 : Autor(es): Taki, K., M. Kiyota, T. Ichii and T. Iwami

8. Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands, derived from the 2000–2006 monitoring program at Potter Cove

   sampling period of 24 years which began in 1983, and at Harmony Cove in the summers of 2001to 2003. The ... early 1980s, while those of G. gibberifrons have further declined and remain close to zero. At Harmony ... was absent in the catches. These trends are consistent with those observed in scientific cruises ... , particularly over the last two years. These observations are consistent with results from bottom trawl ... date (Epanenchikov kernel, bandwidth = 0.15), together with the observed split-year mean values. 0 ... of 24 years which began in 1983, and at Harmony Cove in the summers of 2001 to 2003. The decline in ... trend of N. rossii catches from 1991 to 2006, the actual levels are half of those found in the early ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 83–87 : Autor(es): Barrera-Oro, E.R. and E.R. Marschoff

9. Acoustic estimates of krill biomass in the Elephant Island area: 1981–1993

   years 1981 to 1993 (with the exception of 1982 and 1986). Estimates for 1981 to 1991 are based on ... ., 1991). Biomass estimates range from 267 x 10 3 tonnes (March/April 1985) to 4 880 x 10 3 tonnes ... density over the 13-year period were 1 703 x  103 tonnes and 53.2 g/ 2. File:  01hewitt-demer.pdf ... vicinity of Elephant Island are presented for the years 1981 to 1993 (with the exception of 1982 and 1986 ... p a i o ~ e o-sa 3 n e a a ~ ~ B nepnon c 1981 no 1993 rr. (sa mxnIoveHHeM 1982 H 1986 rr.). O U ... Nov Mar Nov Mar Jan Jan Feb early Jan late Jan early Feb late Feb late Jan late Feb-early ... Mar late Jan early Mar Jan Feb throughout the survey area (Loeb and Siegel, 1993) and ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 1–5 : Autor(es): Hewitt, R.P. and D.A. Demer

10. Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea

    spawn at a younger age with an A 50% of 12.8 years (95% CI 11.9–14.0) or 120.4 cm (95% CI 114.8–126.7 ... region is 16.6 years (95% CI 16.0–17.3) or 133.2 cm (95% CI 130.9–135.7) by length. On average, males ... stage for at least one year. Individual oocytes are then recruited into the vitellogenic phase over at ... maturation stage by approximately May each year. The age at 50% spawning for females on the Ross Sea slope ... (forecasting ogive), on average females spawn more than four years later than males (Table 3). However, the ... during the fishing years 2000–2009, with 1 059 available within Subarea 88.1 of the Ross Sea (Table 1 ... ). Most samples were collected between mid-December and early-February with a spatial coverage of the ... showed similar relationships with age and length (Table 3; Figure 7). The age at 50% spawning for ...

    Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Autor(es): Parker, S.J. and P.J. Grimes

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