Search results

1. Growth and natural mortality of Patagonian rockcod (Patagonotothen guntheri shagensis) from Shag Rocks shelf

   360 157 1 4 1~0 120 y=O.004643x3 .278 100 0) :c 80 0) Q) ~ 60 40 20, 5 10 ... are most abundant. Sexual maturity is attained by fish at 11 to 13 cm length, 20 to 30 g weight and age ... 16.74 18.57 19.89 20.84 144 Table 2: Abundance of P.g. shagensis by age-groups in catches taken ... 15 20 25 Length, cm Figure 1: Plot of weight (grams) of P.g. shagensis against length (cm ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 111–121 : Author(s): Shlibanov, V.I.

2. Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies

   on D. eleginoides fisheries at the Crozet Islands 0 10 20 30 40 50 60 70 80 90 100 2003/04 2004/05 2005 ... between 2003 and 2008. 0 10 20 30 40 50 60 70 80 A B C D E F G Fishing vessel In te ra ct io ... is described under ‘Methods’. Tixier et al. 188 –10 –5 0 5 10 15 20 25 30 2003/04 2004/05 2005/06 ... for different 20 n mile distance classes, killer whales needed significantly more time to find the same ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Author(s): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet

3. A review of the trophic role of mesopelagic fish of the family Myctophidae in the Southern Ocean ecosystem

   in catches of pelagic trawls, it appears that 80% of the biomass comprises the four species E . carlsbergi ... Role of Myctophids Considering that mesopelagic fish comprise up to 80% of the diet ... . Nauka, Moscow: 57-80. (In Russian). Naumov, A.G., M.F. Svetlov, A.N. Kozlov and I.A. Pinskaya. 1981 ... . Tseitlin. 1980. Secondary production in the pelagic layer of Antarctica. Okeanologiya, 20 (6): 1087-1089 ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 71–77 : Author(s): Kozlov, A.N

4. Fitting Euphausia superba into Southern Ocean food-web models: a review of data sources and their limitations

   and Ecosystems CRC University of Tasmania Private Bag 80 Hobart, Tasmania 7001 Australia E. Pakhomov ... of juvenile krill ~20 mm long (Atkinson et al., 2009; Kawaguchi et al., 2010), perhaps due to undersampling ... (Table 2) cover 22% of the nominal 20 million km2 habitat area and 5% of the total depth range ... , and regularly with an estimated ~20% of the stock deeper than 200 m at any one time. The fourth undersampled ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 219–245 : Author(s): A. Atkinson, S. Nicol, S. Kawaguchi, E. Pakhomov, L. Quetin, R. Ross, S. Hill, C. Reiss, V. Siegel, G. Tarling (submitted to the 2008 Joint CCAMLR-IWC Workshop)

5. Management and uncertainty: the example of South Georgia

   Transitional yields (next 10 years) 25-:40,000 Nil Nil (years 11-20) 50-80,000 17,500-25,000 Nil Non ... some 20 millions before 1965, to some 3 to 6 millions for the 1967 to 1975 year-classes, to possibly ... only 40,000 in the 1980 year-class (paragraph 20 of the report). - 346 - Accepting ... years being due to the second burst of relatively high catches in 1979/80, management policy must ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 341-353 : Author(s): Gulland, J.A.

6. Prey monitoring surveys: a discussion of the characteristics necessary in prey surveys

   Black-browed Albatross (Croxall pers comm.) 50 - 80 km (Max 100 km) 40 - 60 km 50 - 100 km ... ; these are : Adelie penguin Chinstrap Penguin 23 Nov-13 Dec (guarding) or 2 Jan (creche) 20 Dec-13 Jan (guarding ... (creche) 12 Dec to 12 Jan Rather than survey throughout this period a compromise of from about 20 Dec ... to 20 Jan would probably cover both species adequately. This would however raise the same compromise ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 377-391 : Author(s): Everson, I.

7. Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density

   t; × – n o d at a ob ta in ed ; * – d at a ob ta in ed b et w ee n 20 / 11 / 20 05 a nd 20 / 12 ... / 20 05 . D ep lo ym en t D ep lo ym en t d at es A pp ro x. w at er d ep th ... 30 0 19 6 30 –1 82 × 13 00 20 3 20 –1 89 × 2 19 / 02 –2 8/ 04 / 03 30 0 19 8 32 –1 84 ... –1 76 × 13 36 20 8 na × × × 4 12 / 11 / 03 –1 3/ 01 / 04 31 0 20 0 34 –1 86 × 13 34 22 ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Author(s): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone

8. Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys

   . The size structure of E. carlsbergi was fairly uniform. Specimens of 70 to 80 mm predominated ... 'S and between 20°30' and 26°30'W was surveyed from 20 February to 2 March. Secondly, the area with coordinates ... 51°30' to 55°00'S and 8°00' to 18°30' (Figure 7) was surveyed from 20 March to 2 April ... was approximately 20 tonnes per square mile, and 15 tonnes per square mile in 1989 or 5.8 g/m2 and 4.4 g/m2 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 417–431 : Author(s): Filin, A.A., K.V. Gorchinsky and V.M. Kiseleva

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

   . Longline vessels may deploy up to 20 000 baited hooks per day, and during line-setting procedures ... success by the autobaiter was about 80%. During setting the line entered the water about 15 m behind ... and hook line and a weight in between these locations. Baskets were deployed in batches of 20 (= 960 ... snoods and hooks), with each batch extending 1 440 m along the hook line. Each batch of 20 baskets ...

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

10. Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from 1994 to 1997, Dr Eduardo L. Holmberg surveys

    of variation) of about 20% or smaller, while a sample size of 25 ensures CVs of at least 10%. We established ... , 1995). In 1996 and 1997 fish between 16 and 20 cm predominated; in 1997 a peak between 25 and 30 cm ... method: the dietary coefficient (Q%) showed a greater importance of T. gaudichaudii (75-80%) than krill ... (20-25%) in both the SG and SR areas. For the datasets of 1996 and 1997, the Hureau method (Hureau ...

    Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Author(s): Barrera-Oro, E., R. Casaux and E. Marschoff

Pages