Search results
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Can we satisfactorily estimate variation in krill abundance?
tradicionalmente en las evaluaciones de pesquerias demersales como un estimador de la abundancia. Este indice es ... from data reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... fishery induced variation. The timescale for such information is discussed in the light of the needs of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 375-376 : Author(s): Everson, I.
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The role of fish as predators of krill (Euphausia superba) and other pelagic resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
Prydz Bay contained more than 95% krill by weight (Williams, 1985). Main prey items of P. gracilis ... for N. coriiceps, juvenile N. rossii, G. gibberifrons and T. newnesi from Admiralty Bay and Potter Cove (King ... instance, no robust estimates of food consumption by mesopelagic fish can be provided for the vast areas of ... Paper Title: The role of fish as predators of krill (Euphausia superba) and other pelagic ... resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop) Abstract / Description ... : Krill forms an important part of the diet of many Antarctic fish species. An understanding of the role ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Author(s): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams
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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
correspondiente, como la variable de respuesta en un modelo lineal generalizado (GLM), con una función de enlace ... modelo GLM apoyado en una teoría más rigurosa. Se utiliza la captura como variable de respuesta en un ... modelo al recuperar información de distintos barcos, como resultado de la variabilidad en el número de ... estratos y año de pesca, como variable aleatoria adicional en el GLMM. Es difícil ajustar la interacción ... Paper Title: Modelling catch and effort data using generalised linear models, the Tweedie ... distribution, random vessel effects and random stratum-by-year effects Abstract / Description: The current ... CCAMLR areas is to model the haul-by-haul ratios of catch to effort as the response variable in a ... standardised CPUE estimates and their precision can be obtained from the ‘fishing year’ parameter estimates ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Author(s): Candy, S.G
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A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
, M. and D.P. Gordon. 1983. Coral-like bryozoan growths in Tasman Bay, and their protection to conserve ... riesgo se define como la probabilidad condicionada de que se produzca un impacto desfavorable dadas ... Ecosystems (VMEs) are avoided. Due to the high levels of uncertainty surrounding both the evidence of VME ... presence and the consequences of interaction with different types of gear, a risk-management framework is ... proposed, similar to that which has been used successfully to minimise the effects of longline fishing ... mortality on seabirds. Risk is broadly defined as the conditional probability of adverse impacts given ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Author(s): Martin-Smith, K
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Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed with mitochondrial and intron DNA markers
identity, with two indels (1 nt, 14 nt). The D. mawsoni amplicon contained two variable sites in the con ... , the homologous region in D. eleginoides contained 12 segregrating sites and 25 haplotypes, with a ~30x greater ... digested with the restriction enzymes, but there was no population differentiation among the three sea ... Paper Title: Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed ... appeared to be characterised by low diversity; no genetic variation was detected with restriction enzyme ... digests of nine sub-regions of the mitochondrial genome. Polymorphisms were found in four of seven introns ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 43–51 : Author(s): Smith, P.J. and P.M. Gaffney
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Long-term trends in the foraging patterns of female Antarctic fur seals at South Georgia
/amamantamiento de las hembras se reflejan como capas de privacion de alimento/amamantamiento en los dientes de ... Paper Title: Long-term trends in the foraging patterns of female Antarctic fur seals at South ... Georgia Abstract / Description: The number of feeding trips to sea made by female Antarctic fur seals ... during lactation may reflect the relative availability of local prey resources. Experimental work ... utilizing tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 441-443 : Author(s): Bengtson, J.L.
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An impact assessment framework for bottom fishing methods in the CAMLR Convention Area
, con el fin de implementar medidas de mitigación apropiadas y como un componente necesario de una ... Paper Title: An impact assessment framework for bottom fishing methods in the CAMLR Convention ... Area Abstract / Description: This paper presents a methodological framework to estimate the likely ... cumulative impact on fragile benthic organisms from bottom fishing activity. The approach has been designed ... preliminary assessment of bottom fishing impacts for the 2008/09 toothfish longline fishery. This paper ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Author(s): Sharp, B.R., S.J. Parker and N. Smith
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Some comments on the procedure for testing estimators of krill abundance which utilise survey data
estimadores de abundancia que intentan modelar tales efectos (como aqueUos basados en las tecnicas Kriging ... tales modelos como la base para los estudios de simulaci6n requeridos - se plantean algunas sugerencias ... Paper Title: Some comments on the procedure for testing estimators of krill abundance which ... computer generation of krill distribution patterns, which are compatible with existing information on the ... concentrations; these concentrations are then located at random within the survey area. These ‘two-level’ models ... provide an encouraging improvement in fits to the distribution of inter-swarm distances observed on the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Author(s): Butterworth, D.S., D.L. Borchers and D.G.M. Miller
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Problems of population age structure determination of Euphausia superba Dana using an example from the Antarctic Peninsula area and adjacent waters
y en las Islas Shetland del Sur, asi como en datos recopilados por otros investigadores durante FIBEX ... BaprMaHH H HeMOTO nos- BonRnH npe~nonaraTb, ~TO pa~KaM, HacenflIDmHM 60nee B@COKHe mHpOT@ CBOHCTBeHeH ... -BOCTOqHOrO THXOOKeaHCKoro oacceHHa. PasBllTHe oHocesoHH@x npo~eccoB B CHCTeMe AUT cne~yeT saKOHO ... SarraS,D;bIBaHlie BeceHHero pasBHTliH nnaHKTOH- Horo cOOOmecTBa li oonee nos,n;Hee HacTyrrneHlie ... an example from the Antarctic Peninsula area and adjacent waters Abstract / Description: This paper ... examines the size structure of populations of E. superba in relation to their habitat, on the basis of an ... analysis of data collected by the author during the 1981 season in the region of the Antarctic Peninsula ... and the South Shetland Islands, as well as data collected by other researchers during FIBEX and data ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 227-270 : Author(s): Spiridonov, V.A.
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The influence of bait quality on the sink rate of bait used in the Japanese longline tuna fishing industry: an experimental approach
HaXHBKH, IIPHMeHReMbIX npH RIIOHCKOM RPYCHOM npOMbICne TyHQa B BORaX T ~ C M ~ H H H . TaKXe: 6b1no ... utilizadas como cebo er) la pesqueria de palangre japonesa dirigida a1 atiin en las aguas de Tasmania ... del tip0 de cebo en la velocidad de hundimiento de las especies utilizadas como cebo por palangreros ... Paper Title: The influence of bait quality on the sink rate of bait used in the Japanese longline ... determine the effects of bait size (large versus small) and bait condition (frozen versus thawed) on the ... sink rate of five species of bait used in the Japanese longline tuna fishery in Tasmanian waters. The ... , condition) were statistically significant, the most powerful effect was due to bait condition: thawed bait ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 123–129 : Author(s): Brothers, N., A. Foster and G. Robertson