Search results
-
Patagonian toothfish in international waters of the Southwest Indian Ocean (Statistical Area 51)
80 to 150 cm TL for females. % F re qu en cy 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 ... 120 125 130 135 140 145 150 155 160 165 170 175 0 20 40 60 80 100 0 5 10 15 20 25 Ob-Lena ... 65 75 85 95 105 115 125 135 145 155 165 175 0% 20% 40% 60% 80% 100% Males Females TL (cm ... ) Females Males S ex ra tio (% ) 100 80 60 40 20 0 45 55 65 75 ... (Statistical Area 51) Abstract / Description: Experimental fishing for Patagonian toothfish (Dissostichus ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 207–214 : Author(s): López Abellán, L.J
-
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
period of 24 years which began in 1983, and at Harmony Cove in the summers of 2001to 2003. The decline ... has continued at Potter Cove from 2000 to 2006, extending a continuous sampling period of 24 years ... of freedom Mean square F P (a) Notothenia rossii, total catches Years 19.8835 20 0.994173 14.6162 <0.00001 ... Error 59.3803 873 0.068019 (b) Gobionotothen gibberifrons, total catches Years 9.8124 20 0.49062 ... 42.9468 <0.00001 Error 9.9731 873 0.01142 (c) Notothenia coriiceps, total catches Years 32.4684 20 ... , relative catches Years 14296.5242 20 714.826 21.3430 <0.00001 Error 28033.11 837 33.49237 Figure ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 83–87 : Author(s): Barrera-Oro, E.R. and E.R. Marschoff
-
Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean
. 1996. Validation of age readings from otoliths of juvenile roundnose grenadier, Coryphaenoides ... . Kelly, C.J., P.L. Connolly and J.J. Bracken. 1997. Age estimation, growth, maturity and distribution ... of the family Macrouridae (rat tails and grenadiers) have become common by-catch species in recent years due ... to CCAMLR's decision rules. This paper provides a brief review of available information on Macrourus ... Indian Ocean Abstract / Description: This paper provides an assessment of the distribution and abundance ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 171–178 : Author(s): van Wijk, E.M., A.J. Constable, R. Williams and T. Lamb
-
Possible effects of different levels of krill fishing on predators – some initial modelling attempts
t o b e the biomass of age classes 1 and above (i.e., the '1 + biomass ' ) a t t he 'start' of t h e year (i.e ... ' a n 8 ~ o o r j years, q 0.69 0.67 0.64 0.64 Age-at-First-Reproduction T (yr) 4 4 5 10 The va lues ... maturity plus a gestation period of essentially one year), while for birds it is the age at first laying ... year if an upper bound of 1.5 yr-' on the effective annual fishing mortality for fully selected age ... modelling attempts Abstract / Description: An initial attempt is made to develop the modelling framework ... suggested by the Joint Meeting of CCAMLR's Working Group on Krill (WG-Krill) and Working Group for the ... fluctuations together with preliminary information on adult survival and breeding success patterns for certain ... facilitated discussion on the interpretation of the preliminary estimates of adult survival rate provided for ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Author(s): Butterworth, D.S. and R.B. Thomson
-
Biomass, abundance and distribution of fish in the Kerguelen Islands EEZ (CCAMLR Statistical Division 58.5.1)
composition. Scales and otolith samples were taken for ageing. A tagging program of D. eleginoides was also ... and the top of the Skiff Bank, correspond to specific age classes (cohorts) previously recognised ... in the shallow and more inshore waters (age 0+, 6.14 million specimens from the abundance estimates, 28.9 ... % of fish) of sub-adult fish (age 2+), focused geographically more off- shore; (iii) a last group of post ... stratified stations. Estimates of biomass and abundance were produced for eight commercial species. The total ... biomass was 245 000 tonnes and Patagonian toothfish (Dissostichus eleginoides) accounted for half of the ... distribution of species, commercial or not, that are important in the ecosystem and are of major interest for ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 1–32 : Author(s): Duhamel, G. and M. Hautecoeur
-
Phytoplankton distribution in the mixed layer: implication to krill abundance
N e 0 1 2 3 4 0 1 2 3 4 0 0 10 10 20 20 30 30 40 40 /""'. E '--" 50 50 L +-' 0... ID 60 60 -0 70 70 80 80 ... buoyancy frequency profile. 343 o 10 20 30 40 .5: 50 0+- D.. (J) ""0 Figure 2: 344 ... 60 70 80 90 100 10-10 10-9 10-8 10-7 10-6 10-5 10-4 10-3 G (W kg- 1) Dissipation ... ,...-.-. 20 E '--" ..c 25 -+-' 0.. ID ""0 30 35 40 45 50 Figure 8: Same as Figure ... Antarctic Ocean, we estimate the depth of the mixed layer and its turbulence intensity from an Ekman layer ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 331–356 : Author(s): Yamazaki, H. and T.R. Osborn
-
Precautionary measures for a new fishery on Martialia hyadesi (Cephalopoda, Ommastrephidae) in the Scotia Sea: an ecological approach
presents a revision of annual consumption of the species by higher predators and provides a brief review ... established. Data from the CCAMLR Convention Area suggest that M. hyadesi may live for two years, but this may ... and provides a brief review of information about the life cycle and distribution of the species obtained from ... that M. hyadesi may live for two years, but this may vary. In common with other ommastrephids, the species ... samples in Table 1 which were aged by counting daily growth increments in statoliths were up to one year ... Back-calculated hatching dates of a small sub-sample of adult squid that were aged from samples taken ... of squid (six males and six females) from the 1996 winter research fishery at South Georgia were aged ... (Gonzalez and Rodhouse, unpublished data). Mean age was 325 days (range 310-360) and hatch dates were ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 125–139 : Author(s): Rodhouse, P.G
-
Target strengths of Antarctic krill (Euphausia superba)
to a significant degree, then it will require raising the computed means shown in Table 2. The mentioned ... kHz TS (dB} at 120 kHz Event Mean no. - no. 1 7 1 9 20 26 28 30 36 37 43 47 50 52 54 ... 794 31.0 30.8 3.3 200 -88.3 -58.7 459 -80.7 -48.6 461 Summary results for each of two methods ... SC-CAMLR-VII/BG/30 TARGET STRENGTHS OF ANTARCTIC KRILL ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Author(s): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote
-
Factors to consider in developing management measures for krill
/ Description: A brief review of the objectives of the Convention for the Conservation of Antarctic Marine ... A brief review of the objectives of the Convention for the Conservation of Antarctic Marine Living ... from year to year. The various techniques used to estimate the abundance of animal populations also ... WG-KRILL-90/14 FACTORS TO CONSIDER IN DEVELOPING ... MANAGEMENT MEASURES FOR KRILL W.K. de la Mare>l< Abstract A brief review of the objectives ... OTKPbITbIX-3aKpbITbIX paHoHoB H ce30HOB. IIpe~RaraIOTc~ HeKOTopbIe MepbI no ynpaBReHHIO, KOTopbIe Mor RH ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 175–187 : Author(s): de la Mare, W.K.
-
Selectivity of commercial and research trawls in relation to krill
more large krill (35-58 mm) than catches of the research trawl (30-54 mm). The maximum difference ... large krill (35-58 mm) than catches of the research trawl (30-54 mm). The maximum difference in mean ... that the selectivity properties of a trawl will affect the accuracy of biomass estimates for specific age groups ... -58 mm) than catches of the research trawl (30-54 mm). The maximum difference in mean length ... celles du chalut de recherche (30-54 mm). La difference maximale de longueur moyenne dans les captures ... -58 MM). YeM B ynoeax mccneAoBaTenhcKoro Tpana (30-54 MM). M ~ K C H M ~ ~ ~ H O ~ pacxoxAeHBe ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 161–169 : Author(s): Kasatkina, S.M