Search results
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A review of the trophic role of mesopelagic fish of the family Myctophidae in the Southern Ocean ecosystem
Paper Title: A review of the trophic role of mesopelagic fish of the family Myctophidae ... A review of the trophic role of mesopelagic fish of the family Myctophidae in the Southern Ocean ... CCAMLR Science, Vol. 2 (1995): 71-77 A REVIEW ... U C C J I ~ A O B ~ H U ~ ~ T~o@AY~cKUX B ~ ~ U M O O T H O I I I ~ H H ~ ~ MHKTO@IIA nOKa3anU, YTO DaHHarr rpynna ~esonena ... . B T ~ O @ I I Y ~ C K O ~ ~ Hepapxmi MNKTO@HA~I UMeIOT CTaTyC KOHCYMeHTOB 300nnaHKTOHa. E0nbLU0e KOnUYeCTBO Me30- H MaKPOnnaHKTOHa ... " to 65"s; sometimes even further south) where ACC waters extend southward. Years of research ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 71–77 : Author(s): Kozlov, A.N
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Size at sexual maturity of Patagonian toothfish (Dissostichus eleginoides)
in Biological Assay. 3rd Edition. Charles Griffin, London: 508 pp. Kock, K.-H. and I. Everson. 1998. Age ... Male MaylJune 1997 Male JulylAugust 60 70 80 90 100 110 120 130 Length (cm) Figure ... 1996 Female July 1997 Female JulyIAugust 60 70 80 90 100 110 120 130 Length (cm) 60 70 80 90 100 ... An53 CaMQOB 11 98,2 CM CaMOK. B 1997 r. pe3yJlbTaTbI AJIX CaMQOB 6bmu B OCHOBHOM TaKHMM me. Ansr CaMOK ... (Dissostichus eleginoides) caught in the commercial fishery within Subarea 48.3. The results for 1996 indicate ... that L m50 occurs at 78.5 cm total length for male and 98.2 cm for female fish. In 1997 the results for ... male fish were essentially the same. For female fish there is evidence that in 1997 a significant ... allowing for this bias indicates that L m50 for female fish in 1997 was no different to that for 1996. The ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 37–46 : Author(s): Everson, I. and A.W. Murray
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Book review: Fish and Fish Resources of the Antarctic
Paper Title: Book review: Fish and Fish Resources of the Antarctic Abstract / Description ... Book review: Fish and Fish Resources of the Antarctic ... : This work by K.V. Shust (Doctor of Biological Sciences), published in 1998, remains fairly unknown beyond ... a Russian-speaking readership. The book represents the first complete summary, prepared by a Russian author ... CCAMLR Scieiicc, Vol. 8 (2001): 165-168 BOOK REVIEW ... of more than 30 years allowed lum to analyse both the processes governing bioproductivity in various ... the broad area of open Antarctic waters only just over 80 meso- and bathypelagic species (30 families ... species is limited to a handful of lanternfish species. Representatives of other Book review meso ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 165–168 : Author(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)
uncertainty regarding maturity and age- or length-at-maturity for D. mawsoni. As a consequence, much ... ). This equates to 50% maturity at about age 9. As the sex-ratio analysis is relevant only to the spawning ... break South shelf North South break South shelf North South break South shelf 100 90 80 70 60 ... 50 40 30 20 10 0 North South break South shelf North South break South shelf Figure 4: Ratio ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 27–45 : Author(s): Fenaughty, J.M
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Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
3S'W 30'W 2S'W 20'W 1S'W r-------------------------~------------~------t_SO'S ...... 00 ... and Proressor Sledleckl MERCATOR PROJECTION .".,. 00 '1" ~ W c::: ~ P=l ;::J rJ) 30'W 2S'W 20 ... ~--~--~--~--~--~----~--~--~--~~ 20 25 30 35 40 45 50 55 60 65 70 Length (mm) Figure 3: Relationship between krill target strength ... WG-KRILL-92/20 KRILL BIOMASS IN AREA 48 AND AREA 58 ... estimates of mean density and biomass for the Indian Ocean sector and the West Atlantic sector as well as ... for FAO Statistical Area 41, and CCAMLR Subareas 48.1, 48.2, 48.3, 48.6 and Division 58.4.2. Density ... workshop. Estimates for the different areas were also calculated using the target strength relationships of ... Green et al. (1990). The new estimates were on average 4.76 times larger than the old estimates for ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Author(s): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss
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Assessments of by-catch in trawl fisheries at Heard and McDonald Islands
the total by-catch in a year to the estimates of long-term annual yield, (ii) allowing catches of by-catch ... the total by-catch in a year to the estimates of long-term annual yield, (ii) allowing catches of by-catch ... and, by these estimates, less than 8 years old. The maximum age is uncertain because it is currently based ... for this species was assumed to include fish of ages 12 years and above. Values of L, and K in a von Bertalanffy ... 8 years of age. This was used as the age of first maturity for skates at Heard Island. Family Species ... 0.356 0.212 0.529 1 1 001 l 001 1 0 20 0.2 imated since the Parameter Minimum age ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 231–243 : Author(s): Constable, A.J., R. Williams and W.K. de la Mare
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Temporal variability and the interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island
examined for Adélie penguins over a period of 12 years. Data were collected from 1990/91 to 2001/02 ... while other parameters, such as arrival counts and incubating nest counts, are more stable between years ... and the interrelationships between these parameters were examined for Adélie penguins over a period of 12 years. Data ... , such as arrival counts and incubating nest counts, are more stable between years. The low degree of correlation ... f or ag in g tr ip , f ir st a nd l as t fe m al e re tu rn f ro m f ir st f or ag ... in g tr ip , f ir st m al e d ep ar tu re f or s ec on d f or ag in g tr ip ... , l as t m al e re tu rn f ro m s ec on d f or ag in g tr ip , a nd e st im at ed fi rs ... (A2), for aging trip duration (A5), arrival weights (A1) and fl edgling mass (A7) as well ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 75–90 : Author(s): Emmerson, L.M., J. Clarke, K.R. Kerry and C. Southwell
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Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives
Natural Mortality = 0.15 year! Von Bertalanffy K = 0.12 year! Von Bertalanffy Woo = 2500 grams Age ... at first fishing = 5 years (knife-edge) Age at first spawning = 5 years (knife-edge) Pooled age-class ... ! Von Bertalanffy Woo = 1000 grams Age at first fishing = 3 years (knife-edge) Age at first spawning ... = 3 years (knife-edge) Pooled age-class = 10 years Table 2: Fishing mortality rates consistent with each ... Paper Title: Refinements to the strategy for managing depleted fish stocks based on CCAMLR ... hence that additional management policies are required for depleted stocks. The implications of these ... studies for defining the terms 'depleted' and 'target levels for recovery' are briefly ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 467–475 : Author(s): de la Mare, W.K. and A. Constable
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A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies
parameters. A young-age adjustment (less than 5 years old) to the VB model is also given in order to give ... obtained using IWLS-estimated parameters. A young-age adjustment (less than 5 years old) to the VB model ... Paper Title: A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age ... data and compared to observed growth from mark–recapture studies Abstract / Description: Length-at-age ... than 20 years in age. This is due to the combined effect of natural and fi shing mor- tality ... for ages in the 8– 20 year range. This translated to larger predictions for the MLPLB-fi tted curve ... with those obtained using IWLS-estimated parameters. A young-age adjustment (less than 5 years old ... )|A) = μ(A, θ) = L∞ (1 – exp{–κ(A – t0)}) (2) and L(Pop) = μ(A, θ) + ε where L is length (mm), A is age (years ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Author(s): Candy, S.G., A.J. Constable, T. Lamb and R. Williams
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Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias
of growth can be remediated by estimating size- or age-based estimates of LPE parameters. Slowing ... the movement of toothfish and the spatial distribution of size and age classes (e.g. Dunn and Rassmussen ... of size- and age-based models for areas without assessments, such as the exploratory toothfish fisheries ... , Hobart, Australia: 17 pp. Candy, S.G. 2011b. Estimation of natural mortal- ity using catch-at-age ... spatially explicit modelling approaches is also an important next step for Dissostichus spp. assessments ... -recapture programs for Dissostichus spp. and best practice for addressing bias Abstract / Description: The ... Lincoln-Petersen equation, the simplest form of an abundance estimator using tag-recapture data, was used ... account for their effects in stock assessments for Dissostichus spp. are also summarised. In nearly all ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Author(s): Welsford, D.C. and P.E. Ziegler