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Bacteria and detritus: Trophic modelling of the Ross Sea
group in the model is to separate material that can be consumed by scavengers from material that is ... allowance for the proportion of the Ross Sea which is covered with sea ice, as bacterial biomass can be ... (Figure 3). We assume that winter values are half the minimum measured by Ducklow et al. (2000, 2001). As ... y-1 (3.0–39 y-1). Kirchman et al. (2001) found that fluxes of dissolved organic carbon (DOC) were ...
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SC-CAMLR-SSP/5 – Part I, 1988
PHYTOPLANKTON DISTRIBUTION IN THE MIXED LAYER: IMPLICATION TO KRILL ABUNDANCE, H. Yamazaki and T. Osborn ... surveys be planned to operate in small areas concurrently with fishing vessels. * Revised and extended ... ); essentially, since catch rates are best in this period, it seems likely that future krill fishing will be ... fishing now takes place). The overriding concern was that initial modelling attempts should be aimed at ...
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Fishery Report: Dissostichus eleginoides Kerguelen Islands (Division 58.5.1)
17. The Working Group recommended that, where possible, areas with high by-catch rates should be ... and other data that could be used to progress understanding of fish stocks and fishery dynamics for ... and Australia on analysis of catch and effort data and other data that could be used to progress ... that the CPUE analysis would probably be robust to these changes so long as detailed haul-by-haul data ...
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Fishery Report: Dissostichus eleginoides South Georgia (Subarea 48.3)
that were too low to allow the correct number of fish to be tagged. Priors 23. Within a Bayesian ... noted that there is still uncertainty surrounding the estimate of the 2001 cohort. The cohort was ... YCS are lower than the long-term average, with the exception of 2001. Consequently, WG-FSA-11/33 ... Rev. 1 suggested that a more precautionary estimation of future recruitment would be appropriate at ...
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Fishery Report: Dissostichus eleginoides (TOP) Kerguelen Islands (Division 58.5.1)
. The Working Group recommended that, where possible, areas with high by-catch rates should be avoided ... undertaken, the integrated assessment using CASAL that was presented in WG-FSA-12/09, could be used to ... provide management advice for 2013 and agreed that the current catch limit of 5 100 tonnes could be used ... be strengthened by regular meetings between TAAF and fishing masters of vessels with high by-catch ...
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Report on bottom fisheries and vulnerable marine ecosystems
that specific guidance would need to be developed to adequately monitor fisheries by-catch for ... effort is not included, and the C1 database may be incomplete with respect to some recent research ... the mainline with hooks. Similarly, an assessment of the impacts of bottom trawling may be expected ... particular interaction with the fishing gear. Fragility will be different for different VME taxa; when the ...
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Toothfish and skate tagging methods
waste your time and effort. – Data that cannot be matched between release and recapture cannot be ... operators: Provide incentives for tags to be recaptured. Make it important to crew. Note that statistical ... sheet to record data • Accuracy is critical (tag code and length). • Check data with observer ... records per shift. – Tag release sheets checked with tag codes used. – Notify observer of all ...
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Krill Fishery Report 2017
(Budzinski et al., 1985) and/or with an ecosystem anomaly that impacted the reproductive performance of ... reporting forms (with data required to be submitted by the end of the month following data collection). In ... order to accommodate data from the continuous fishing system, in a format that is compatible with the ... in 2015 that the observer data length-frequency distributions could be aggregated by subarea and ...
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Fishery Report: Dissostichus eleginoides Kerguelen Islands (Division 58.5.1)
period between France and Australia on analyses of catch and effort data and other data that could be ... Mitigation measures 17. The Working Group recommended that, where possible, areas with high by-catch rates ... on analyses of catch and effort data and other data that could be used to progress understanding of ... that avoidance of fishing in zones of specific high rates of abundance in by-catch should also be ...
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Fishery Report 2017: Exploratory fishery for Dissostichus mawsoni in Subarea 88.1
that the apparent decline in toothfish CPUE at McMurdo Sound since 2001 was not consistent with data ... , with 24% of the fishing grounds clear of ice, compared to 17% in 2001 and 18% in 2008 (Figure 2). In ... updated for 2017 (WG-FSA-17/07). In 2006, it was concluded that the CPUE indices did not appear to be ... 34. To account for the 1.0% of D. mawsoni that were recaptured but could not be linked to a release ...
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