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Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution
Paper Title: Estimation of effective sample size for catch-at-age and catch-at-length data using ... simulated data from the Dirichlet-multinomial distribution Abstract / Description: The incorporation of ... ‘effective sample size’ (ESS) in integrated assessments is an approximate but simple way of modelling the ... distribution of catch-at-age or catch-at-length frequencies using a multinomial likelihood when there is extra ... distribution of π given by equation 3) and is given by Mosimann (1962, equation 7) and Johnson and Kotz (1969 ... Estimation of EffEctivE samplE sizE for catch-at-agE and catch-at-lEngth data using simulatEd data from ... thE dirichlEt-multinomial distribution S.G. Candy Department of the Environment, Water, Heritage ... Email – steve.candy@aad.gov.au Abstract The incorporation of ‘effective sample size’ (ESS) in ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Автор(ы): Candy, S.G
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A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia
Paper Title: A comparison between otoliths and scales for use in estimating the age of ... understanding the population dynamics and productivity of a fish stock. The use of scales to estimate age can ... result in large errors in age data for long-lived species, usually due to compression of scale circuli ... whose age has been estimated using both scales and otoliths. We estimated the age of D. eleginoides ... to a more conservative management strategy. However the loss of wholesale value due to under ... BETWEEN OTOLITHS AND SCALES FOR USE IN ESTIMATING THE AGE OF DISSOSTICHUS ELEGINOlDES FROM SOUTH ... the population dynamics and productivity of a fish stock. The use of scales to estimate age can ... result in large errors in age data for long-lived species, usually due to compression of scale circuli ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Автор(ы): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson
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Distribution, morphology and ecology of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) in the Ross Sea region
Paper Title: Distribution, morphology and ecology of Macrourus whitsoni and M. caml (Gadiformes ... identification of a new species of Southern Ocean grenadier, Macrourus caml, which had hitherto been identified ... as M. whitsoni. The first comparison of the distribution and ecology of the two species of Macrourus ... in the Ross Sea region is presented. The number of rays in the left pelvic fin and number of rows of ... and East strata, with a spatial distribution similar to that of other samples used in this study ... shallower depths on the continental slope, and deeper depths in the east, so effects of location and depth ... between males and females of both species were usually <10%. Macrou rus whitsoni outside the East ... East stratum seemed generally more developed at the time of the study than gonads of M. whitsoni in ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 37–61 : Автор(ы): Pinkerton, M.H., P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown
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Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries
Paper Title: Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in ... Australian sub-Antarctic trawl fisheries Abstract / Description: Estimates of age and growth were obtained ... McDonald Islands (Division 58.5.2) in 1992 and 1993. The range of estimated ages was 4 to 25 years. There ... maturity of M. carinatus was determined from 162 specimens collected during commercial trawl fishing ... . 10 (2003): 139–151 139 AGE, GROWTH AND SIZE AT SEXUAL MATURITY OF MACROURUS CARINATUS CAUGHT AS ... – esmee.vanwijk@aad.gov.au Abstract Estimates of age and growth were obtained from 156 Macrourus carinatus ... 1992 and 1993. The range of estimated ages was 4 to 25 years. There were no signifi cant differences ... sexes combined were: L∞ = 690 mm, K = 0.069 and t0 = -2.4. The size at sexual maturity of M ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 139–151 : Автор(ы): van Wijk, E.M., R. Williams and A.J. Constable
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Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean
Paper Title: Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern ... Indian Ocean Abstract / Description: This paper provides an assessment of the distribution and abundance ... of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean (Divisions 58.4.1 and 58.4.3 ... ) based on results from a trawl survey in 1999. This is the first quantitative assessment of M. carinatus ... . 1995. Distribution and biology of five grenadier fish (Pisces: Macrouridae) from the upper and middle ... DISTRIBUTION AND ABUNDANCE OF MACROURUS CARINATUS ON BANZARE BANK IN THE SOUTHERN INDIAN OCEAN E.M. van Wijk ... 7050 Tasmania, Australia Abstract This paper provides an assessment of the distribution and ... abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean (Divisions 58.4.1 and 58.4.3 ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 171–178 : Автор(ы): van Wijk, E.M., A.J. Constable, R. Williams and T. Lamb
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Observation of seabirds in the Southern Ocean in 1988/89
Paper Title: Observation of seabirds in the Southern Ocean in 1988/89 Abstract / Description ... : This paper examines the numerical and species distribution of birds in the sub-Antarctic area of the ... Southern Ocean to the south of 60°S. Thirty minute observations were made daily during daylight hours at 8 ... ports of call. Maps summarize the distribution of 14 bird species as well as of the individual species ... . Abundance was less to the east of the South Sandwich Islands and did not exceed 50 birds during a shift ... South Sandwich Islands. In the Indian Ocean sector the blue petrel only was observed to the east of 75 ... . Large flocks of up to 20 birds were common in summer to the east of 74°W. The number observed at one ... Islands (Figure 7). This species was regularly sighted to the east of 200 W, near the ice-edge and in the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 521–542 : Автор(ы): Vagin, A.V. and V.V. Popov
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
predators of fished species Abstract / Description: Managing fisheries to achieve ecosystem objectives is ... for the recovery of depleted populations in food webs supporting fisheries. This paper addresses the ... of fished species, and (iii) what approaches could be considered for achieving the conservation ... objectives? The approach proposed here takes account of uncertainties in knowledge of the structure of ... biodiversity and the potential consequences of loss of biodiversity to the overall ecological function of ... APPROACH TO MANAGING FISHERIES: ACHIEVING CONSERVATION OBJECTIVES FOR PREDATORS OF FISHED SPECIES A.J ... implementation of ecosystem objectives for managing a variety of aquatic and terrestrial habitats is widely ... (Mange1 et al., 1996). Since its inception, CCAMLR has grappled with the problems of applying an ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Автор(ы): Constable, A.J
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Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)
Paper Title: Quantification of Southern Ocean phytoplankton biomass and primary productivity via ... / Description: This paper reviews Southern Ocean primary productivity within the framework of satellite remote ... sensing and the development of food-web models. The satellite ocean colour (chlorophyll) data record is ... Temperature Scanner (OCTS), the Seaviewing, Wide Field of view Sensor (SeaWiFS), the Moderate Resolution ... from a bloom trailing east off the north- ern tip of the Antarctic Peninsula. The Prydz Bay Table 2 ... composition and species succession East Antarctica: Cosmonaut Sea to Prydz Bay In the Austral summer of 2005 ... /06, an interdis- ciplinary survey was conducted of East Antarctica (30°E to 80°E). The suite of ... mixed towards the surface from below. East Antarctica: Prydz Bay to Ross Sea Across the region of ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Автор(ы): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear
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Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
Paper Title: Krill biomass in Area 48 and Area 58: recalculations of FIBEX data Abstract ... estimates of mean density and biomass for the Indian Ocean sector and the West Atlantic sector as well as ... workshop. Estimates for the different areas were also calculated using the target strength relationships of ... those cruises (seven out of the nine considered) that used an echosounder frequency of 120 kHz. File ... ; coefficient of variation (%) = CV]. Ship/Strata Walther H erwig (East) Walther H erwig (South West ... : RECALCULATIONS OF FIBEX DATA P.N. Trathan1, D.J. Agnew2, D.G.M. Miller3, J.L. Watkinsl, I. Everson1, M.R ... held in the BIOMASS database were used to provide estimates of mean density and biomass for the ... were also calculated using the target strength relationships of Green et al. (1990). The new estimates ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Автор(ы): 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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Status of the Polish FIBEX acoustic data from the West Atlantic
Paper Title: Status of the Polish FIBEX acoustic data from the West Atlantic Abstract ... acoustic target strength estimates of krill (SC-CAMLR, 1991a). This analysis indicated that the acoustic ... densities of krill in the oceanic parts of the Drake Passage were low (3 g m-2); however, the results also ... indicated that spatial variability was important and that parts of the shelf to the north of the South ... , minimum net densities were actually present by the middle of March (Siegel, 1988), therefore it is ... STATUS OF THE POLISH FIBEX ACOUSTIC DATA FROM THE WEST ATLANTIC P.N. Trathan British Antarctic Survey ... the West Atlantic were analysed using recent acoustic target strength estimates of krill (SC-CAMLR ... , 1991a). This analysis indicated that the acoustic densities of hi l l in the oceanic parts of the ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 125–132 : Автор(ы): Trathan, P.N., J. Kalinowski and I. Everson
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