Résultats de la recherche
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Results of fish stock assessment survey, South Georgia, December 1987 - January 1988
Champsocephalus gunnari total length frequency (n=19366) 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Length ... Class (cm) ! Pseudochaenichthys georg ianus total length frequency (n=2588) 5 10 15 20 25 30 35 ... =8586) 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Length Class (cm) Figure 3: ( a) Length frequency ... 6 e r 5 o 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Length Class (cm) NototheAia rossii ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Auteur(s): McKenna, Jr., J.E. and S.B. Saila
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Preliminary model of krill fishery behaviour in Subarea 48.1
Elephant Islands in alternate years would result in an average yearly catch similar to that at present ... during alternate years. File: 06agnew-marin.pdf ... 48.1). Although only about 20% of the South Atlantic catch has been taken in Subarea 48.1, the catch ... periods (months were assumed to be 30 days long). Data from the Chilean fishery in Subarea 48.1 were ... Livingston and Elephant Islands in alternate years would result in an average yearly catch similar to that ... land-based predators during alternate years. Resume Description d'un modele simple du comportement ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 71–79 : Auteur(s): Agnew, D.J. and V.H. Marín
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Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000
approximately 20 n miles of the shelf break (Smith and Livingston) and approxi- mately 50 n miles of the shelf ... 1999/2000 seasons. Only data with more than 20 hauls per month were used. Starting with December ... ecosystem. CCAMLR Science, 3: 13-30. Ichii, T. 2000. Krill harvesting. In: Everson, I. (Ed.). Krill ... from fishing vessels, the reasons for changing fishing grounds in January of these years were either ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 25–36 : Auteur(s): Kawaguchi, S. and K. Segawa
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Book review: Fish and Fish Resources of the Antarctic
knowledge acquired by the author over a period of more than 30 years allowed lum to analyse both the ... Antarctic waters only just over 80 meso- and bathypelagic species (30 families) have been recorded. The ... fisheries data of the USSR and other countries, as well as CCAMLR sources, the author identified about 20 ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 165–168 : Auteur(s): Shust, K.V
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Geographical differences in the condition, reproductive development, sex ratio and length distribution of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR Subarea 88.1)
South shelf North South break South shelf 100 90 80 70 60 50 40 30 20 10 0 North South break ... . mawsoni suggesting that 50% of Fenaughty 30 the population of both sexes is mature at 100 cm TL ... with a 30 cm range over maturity (i.e. 85–115 cm TL). This equates to 50% maturity at about age 9. As ... . Table 4 shows the overall ratio of females to the total catch-weighted sample for each year from each ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 27–45 : Auteur(s): Fenaughty, J.M
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Age and growth of Antarctic euphausiacea (crustacea) under natural conditions
species Euphausia triacantha, and a three-year life span proposed. Male Euphausia crystallorophias have a ... Peninsula and the south-eastern Weddell Sea. Life spans range from two years for Euphausia frigida to six ... years for the krill Euphausia superba. Growth in length and weight was calculated by non-linear ... triacantha, and a three-year life span proposed. Male Euphausia cr¥stallorophias have a shorter life span ... south-eastern Weddell Sea. Life spans range from two years for Euphausia frigida to six years for the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 369-370 : Auteur(s): Siegel, V.
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Krill biomass assessment in Statistical Area 48 from the RV AtlantNIRO data - Autumn 1989/90
600 S; 32° to 18°W) and southern (60° to 67°S; 20° to 18°W), was affected by different types of ... 60 miles by latitude and longitude and during the second survey it was 30 miles by latitude and 40 ... biomass density) did not exceed 30 mg/m3 in the ACC and Weddell Sea waters of the South Sandwich Island ... years, despite intensive commercial exploitation, may indicate a continued relative stability of the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 115–121 : Auteur(s): Fedotov, A.C.
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Movement and growth of tagged Dissostichus eleginoides around South Georgia and Shag Rocks (Subarea 48.3)
at 42°S after about one year at liberty from some opportunistic tagging carried out on a toothfish ... experimental pot fishing in 2000 and 2001, and have been at liberty from one to two years. Four fish were ... seas area on the Patagonian Shelf at 42°S after about one year at liberty from some opportunistic ... year (Figure 1). One vessel that left the South Georgia maritime zone continued pot fi shing in ... recaptured, 30 from Shag Rocks, 7 from around South Georgia and 14 from around 42°S. Figure 2 shows the ... (1.3%) 30 (11.9%) 4 (1.7%) .. Advantages Able to tag large numbers. Juveniles tagged. Very ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 101–111 : Auteur(s): Marlow, T.R., D.J. Agnew, M.G. Purves and I. Everson
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An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
previous and/or subsequent patrol vessels would be to integrate over the year all vessels in the area ... patrols starting every 30 days and lasting for 16 days. All dates are given in number of days from some ... is patrolling the region. Vessel Starting date Ending date One 30 44 Two 60 74 Three 90 104 ... . The ranges in the ‘New method’ column covers the cases of 1 to 20 detections. When there are zero ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 143–161 : Auteur(s): Ball, I
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Analysis of results from demersal fish surveys at South Georgia, undertaken by the United Kingdom and the USSR, January and February 1990
ci z 70 60 50 40 30 20 10 0 f 0 1 2 3 4 5 6 7 Catch (tonnes) of C. gunnarl One ... difficulty in the area to the southern part of the west shelf (squares 19 and 20). The reports of the two ... the net was estimated to vary from 20 to 22.m and the headline height from 5 to 6.5 m. All hauls ... series. All hauls were intended to last for 30 minutes at a speed of 3 to 3.5 knots. Hauls were ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 223–254 : Auteur(s): (Report of a Joint UK/USSR Workshop, 23 to 27 July 1990)