Search results
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Integrated analysis of the by-catch data in the Ross Sea toothfish fishery
-2015 are considered. The analysis was focused on CPUE toothfish (kg/1000 hooks), by-catch CPUE (kg/1000 ... hooks) and normalized target catch ratio. There was evidence of distinct differences in the mean ... (and distribution) in the CPUE toothfish and the by-catch CPUE. Our analysis also show that target catch ratios ... States, should be considered as the primary cause of the observed variability in the target catch ...
Meeting Document : WG-FSA-16/13 Rev. 1 : Author(s): S. Kasatkina
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Preliminary results on by-catch of fishes caught by the fishery vessel Chiyo Maru No. 3 to the north of the South Shetland Islands (February to March, 1996)
Abstract: Investigations on by-catch of fishes captured during krill fishing by F/V Chiyo Maru ... examined, a total of 99 specimens belonging to 5 families and 14 species were captured as by-catch in 41 ... . Among by-catch fishes, juvenile Lepidonotothen larseni was the most abundant. This species was found ... in 15 hauls, and its estimated value of an arithmetic mean was 4±19 ind./t (0 to 140 ind./t) of catch ...
Meeting Document : WG-EMM-96/52 : Author(s): Ichii, T., Kawaguchi, S., Naganobu, M.
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Spatial pattern of major by-catch fishes at Subarea 48.6 during 2012/13–2016/17
Abstract: This paper represents the by-catch analysis results of a multi-Member longline survey ... observers have ceased recording number and weight of by-catch fish with some lines. ANT (Antimora rostrata ... ), GRV (Macrourus spp.), ICX (Channichthyidae spp.), and MRL (Muraenolepis spp.) are common by-catch ... species. These common by-catch species indicate small temporal change of their by-catch pattern. Author ...
Meeting Document : WG-FSA-18/70 : Author(s): Delegations of Japan and South Africa
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Preliminary trials to test mitigation measures aimed at reducing Macrourus spp. by-catch on autoliners targeting D. eleginoides with longlines in the CCAMLR Convention Area
by the vessel (14/0 EZ J-type hooks and squid bait respectively). Catch per unit effort (CPUE) of Macrourus spp ... in catch rates of Macrourus spp due to bait was significant, but not for hook-type. Bait type had similar ... effects on the catch rates of Dissostchus spp. and of all other by-catch species combined. However ... also significant and when bycatch to catch ratios were analysed, the variation due to bait ...
Meeting Document : WG-FSA-07/33 : Author(s): R.E. Mitchell, D.J. Agnew, T. Carruthers, J. Clark, L. Ross (United Kingdom) and J. van Heerden (South Africa)
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Implementation of by-catch move-on rules in exploratory fisheries
Abstract: The implementation of by-catch move-on rules is presented based on the analysis ... of catch and location data from CCAMLR exploratory fisheries from 2010 to 2018. Conservation Measure 33-03 ... specified a haul-specific move-on rule for any by-catch taxa and a cumulative catch move-on rule ... Title: Implementation of by-catch move-on rules in exploratory fisheries Microsoft Word File: fsa-18 ...
Meeting Document : WG-FSA-18/09 : Author(s): CCAMLR Secretariat
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Estimation of catch rate and mean weight in the exploratory Dissostichus fisheries across Divisions 58.4.1 and 58.4.2 using generalised additive models
for these fisheries. Analyses of C2 catch rate and mean weight data from 2484 longline hauls conducted between 2003 ... predictions of catch rate and mean weight across fishable depths in both Divisions. Catch rates across ... locations within fishable depths predicted to have catch rate of less than 100 kg per 1000 hooks. The region ... around Prydz Bay is predicted have the highest catch rate of D. mawsoni and is also shown ...
Meeting Document : WG-FSA-11/35 : Author(s): D.C. Welsford (Australia)
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Some notes on by-catch of fishes and salps caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (January to February 1999)
and Chaenodraco wilsoni were found in 4 trawl catches. On the contrary, salps were captured as by-catch in 69 ... hauls and those estimated value was 20 to 3560 ind./t of krill. By-catch fishes fed on Thysanoessa ... macrura and Euphausia superba was not found in their stomachs. Abundance of salps in krill catches could ... have been depended on the density of krill concentration. At least, the large incidental catch of salps ...
Meeting Document : WG-EMM-00/54 : Author(s): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)
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Spatial pattern of major by-catch fishes at Division 58.4.3a during 2012/13–2016/17
observers have ceased recording number and weight of by-catch fish with some lines. ANT (Antimora rostrata ... ), GRV (Macrourus spp.), RFA (Raja taaf), and SRX (Rajihormes spp.) are common by-catch species ... . These common by-catch species indicate some temporal change of their by-catch pattern. Author(s): Delegations ... of Japan and France Title: Spatial pattern of major by-catch fishes at Division 58.4.3a during 2012/13 ...
Meeting Document : WG-FSA-18/69 : Author(s): Delegations of Japan and France
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Catch Uncertainty in Krill Fisheries
Abstract: Catch uncertainty is a component of uncertainty that is not routinely considered ... reported catch of 600 000t could actually represent a catch in ‘green weight’ of 2.5 million tonnes ... . Quantifying the level of uncertainty in reported catches of krill would require information on product ... ) as well as the product composition of catches. Author(s): Secretariat Title: Catch Uncertainty in Krill ...
Meeting Document : WG-EMM-08/46 : Author(s): Secretariat
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A meta-analysis of by-catch in the Ross Sea toothfish fishery
an analysis of by-catch in CCAMLR longline fisheries. The numerical target catch ratio (the number of target ... toothfish fishery from 2008–2014, was used as a single metric to examine the amount of by-catch reported ... reported by observers. However, the way in which observer sampling of by-catch is reported requires ... clarification. In order to further develop the analysis of by-catch it is essential to consider what additional ...
Meeting Document : WG-SAM-15/23 : Author(s): CCAMLR Secretariat