Search results
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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
toothfish (Dis- sostichus mawsoni) in the Ross Sea region. CCAMLR Science, 15: 35–53. Hillary, R.M., G.P ... of the Working Group on Fish Stock Assessment. Fishery Report: Dis- sostichus eleginoides and Dissostichus maw ... . Similarly, fish that are hooked on gear that is subsequently lost, or that are caught in IUU gear, may ... fish die of natural mortality M̂ M> N̂ N> High High Correct M̂ based on natural mortality ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Author(s): Welsford, D.C. and P.E. Ziegler
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Book review – Biogeographic Atlas of the Southern Ocean
dating back to ~390 Ma (in the EarlyMiddle Devonian) with the impor tance of refugia and polynyas ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 45-46 : Author(s): Reid, K.
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
of (changing) pregnancy rate as well as the higher-than-average natural mortality rate early in life ... , i t s e e m s preferab le t o restr ict consideration a t this early stage to the first of these components only ... projectioni period is to attempt to eliminate transient effects,. as these can die out rather slowly ... and Antarctic fur seal) who kindly provided their estimates to the authors at an early stage to facilitate ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Author(s): Butterworth, D.S. and R.B. Thomson
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Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning
current (ACC) Front) and 5 (Antarctic open ocean) are dis- tributed across large spatial areas ... in development for significantly larger MPAs in the Ross Sea and East Antarctica (~1 000 km in linear boundary ... and 58.4.2 are both subdivided between east and west. Trigger level in force in Division 58.4.2 until catch ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Author(s): Grant, S.M., S.L. Hill and P.T. Fretwell
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Fish stock assessment survey in Subarea 48.3
if the net came fast, or bad ground was encountered during the tow necessitating early retrieval of the net ... Echosignal Processor for fish quantification and was continually monitored for the presence of schools ... that indicated the presence of large schools of fish. In addition, most trawling sites were examined prior ... schools of fish were detected during these investigations. 5. DISCUSSION The standing stock estimates ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 25–67 : Author(s): Everson, I., G. Parkes, K.-H. Kock, S. Campbell, Z. Cielniaszek and J. Szlakowski
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Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects
, while values of λ within the range correspond to a compound Poisson dis- tribution (i.e. Tweedie ... 3 vessels over 37 cruises, dis- tributed across 15 area strata and 7 fi shing years (1997 to 2003) (Candy ... classes, each with a different weight distribu- tion. Also, number of fi sh caught may be more dis- persed ... of estimated random effects their distributions are reasonably well approximated by a Gaussian dis- tribution ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Author(s): Candy, S.G
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Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area
from mid-February to early March 2002 on the South Georgia shelf. Few specimens were collected ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 173–181 : Author(s): Shcherbich, L.V
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Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from 1994 to 1997, Dr Eduardo L. Holmberg surveys
The mackerel icefish (Charnpsocephalus gunnaui) levels up t o t he early 1990s (CCAMLR, 1990b, is one ... o n t h e d i e t the Antarctic in the early 1970s (CCAMLR, 1990a). composition of C. gunnavi (reviewed in Kozlov et ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Author(s): Barrera-Oro, E., R. Casaux and E. Marschoff
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Use of the Leslie stock depletion model for the assessment of local abundance of Patagonian toothfish (Dissostichus eleginoides)
is difficult to assess, particularly in the early years of the fishery when information is sparse ... include a lack of detailed data from the early years of the fishery, differences in catchability between ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 55–77 : Author(s): Parkes, G., C.A. Moreno, G. Pilling and Z. Young
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Survey of Antarctic fur seals in the South Shetland Islands, Antarctica, during the 1986/87 austral summer
at Bird Island and South Georgia increased to a population estimated in the early 1980's at just under ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 427-440 : Author(s): Bengtson, J.L., L.M. Ferm, T.J. Härkönen, E.G. Schaner and B.S. Stewart