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Whale depredation – Data collection guidelines
Whale depredation – Data collection guidelines ... are not found in the near future. The workshop concluded that routine data collection framework across fisheries ... of international science, industry, government and NGO collaboration, this resulting document aims to provide basic ... coverage for the last 15 years. Data on interactions with marine mammals has been collected for 60,000 ... capitaine dans les formulaires CCAMLR Whale depredation - Data collection guidelines – April 2016 ... 1 Whale depredation - Data collection guidelines – April 2016 ... 2 Whale depredation - Data collection guidelines – April 2016 3 INTRODUCTION ... ............................................................... 34 Whale depredation - Data collection guidelines – April 2016 4 2.2.3. Summary for killer ...
Document : Site Section: Science
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Whale depredation data collection guidelines
(s): N. Gasco, P. Tixier, M. Söffker and C. Guinet Title: Whale depredation data collection guidelines ... Whale depredation data collection guidelines ... to find global solutions to this issue. The workshop concluded that routine data collection framework ... document aims to provide basic guidelines for observer programmes that are relatively new to dealing ...
Meeting Document : WG-FSA-16/09 : Author(s): N. Gasco, P. Tixier, M. Söffker and C. Guinet
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Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
with lower catch rates, indications are that depredation by sperm whales can lead to a decrease in catches ... the collection of valuable data, and to assess and implement mitigation strategies under controlled experimental ... with lower catch rates, indications are that depredation by sperm whales can lead to a decrease in catches ... as to ensure the collection of valuable data, and to assess and implement mitigation strategies under ... (toothfi sh). However, in areas with lower catch rates, indications are that depredation by sperm whales ... interactions, to enable observer protocols to be standardised so as to ensure the collection of valuable data ... of killer whales preying on toothfi sh apart from depredated fi sh taken off longlines. Interactions ... between killer whales and longline vessels have been well documented in a number of different fi sheries ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 111–126 : Author(s): Purves, M.G., D.J. Agnew, E. Balguerías, C.A. Moreno and B. Watkins
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Killer whale Orcinus orca and sperm whale Physeter macrocephalus interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
of longlinecetacean depredation, to standardise observer protocols to ensure the collection of valuable data ... rates indications are that depredation by sperm whales can lead to a drop-off in catches. During hook ... of depredation. In contrast depredation by killer whales was often characterized by the occurrence of damaged ... , to standardise observer protocols to ensure the collection of valuable data, and to assess and implement ...
Meeting Document : WG-FSA-03/27 : Author(s): M.G. Purves (United Kingdom), D.J. Agnew (United Kingdom), E. Balguerías (Spain), C.A. Moreno (Chile) and B. Watkins (South Africa)
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Mitigating killer whale depredation on demersal longline fisheries by changing fishing practices
fishing practices that could reduce odontocete depredation, with a focus on killer whales (Orcinus orca ... of depredating killer whales (n = 78 in 2012) may induce a dilution effect with increased fleet size, and ii ... to adopt given these variables to reduce killer whale depredation here and in similar situations elsewhere ... (s): P. Tixier, J. Vacquie Garcia, N. Gasco, G. Duhamel and C. Guinet Title: Mitigating killer whale depredation ...
Meeting Document : WG-FSA-14/P03 : Author(s): P. Tixier, J. Vacquie Garcia, N. Gasco, G. Duhamel and C. Guinet
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
Paper Title: Comparison of two methods to assess fish losses due to depredation by killer whales ... and sperm whales on demersal longlines Abstract / Description: Depredation is a human–wildlife interaction ... depredation occurs on fish in the marine environment. This is the case for killer whales (Orcinus orca ... ) and sperm whales (Physeter macrocephalus) depredation on the demersal Patagonian toothfish (Dissostichus ... - gia. CCAMLR Science, 17: 163–178. 13 Fish loss due to killer and sperm whale depredation ... Science, Vol. 22 (2015): 1–14 1 Comparison of two methods to assess fish losses due to depredation ... for killer whales (Orcinus orca) and sperm whales (Physeter macrocephalus) depredation on the demersal ... -per-unit- effort (CPUE) of non-depredated and depredated lines. When killer whales and sperm whales ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Author(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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e-sc-xxx-a05.pdf
... -recapture programs (ii) proposed research designs and data collection protocols for estimating stock ... The Working Group thanked Japan for its efforts in implementing and presenting the data collected through ... or designing new research to collect the necessary data to achieve an assessment. The Working Group also ... area that was consistent between years. (iii) The observational data were collected by vessels ... data collection protocols for estimating stock status in data-poor fisheries (iii) methods for ... considered when attempting an assessment or designing new research to collect the necessary data to achieve ... compared with the objectives of the data collection. (vi) The research was robust to a set of expected ... data collection plans in data-poor fisheries. The Working Group agreed that such principles would application/pdf attached to:WG-SAM-11
Meeting Report : WG-SAM-11
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
data collected on longliners between 2003 and 2009 were analysed to look at the levels of depredation ... Paper Title: Estimating the impact of depredation by killer whales and sperm whales on longline ... Estimating the impact of depredation by killer whales and sperm whales on longline fishing ... Observer data collected on longliners between 2003 and 2009 were analysed to look at the levels ... Estimating thE impact of dEprEdation by killEr whalEs and spErm whalEs on longlinE fishing for toothfish ... London Prince Consort Road London SW7 2BP United Kingdom Abstract Observer data collected ... on longliners between 2003 and 2009 were analysed to look at the levels of depredation caused by killer whales ... whales (Orcinus orca) in the Southern Ocean have been well documented in recent years, most recently ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Author(s): Moir Clark, J. and D.J. Agnew
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Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies
) of Patagonian toothfish were lost due to depredation by killer whales and both killer and sperm whales. Killer ... a lower impact (>25%). Photo-identification data revealed 35 killer whales belonging to four different ... on depredation. When killer whales were absent at the beginning of the line hauling process, short lines (< ... distances >40 n miles to prevent killer whales from finding them within a few hours. Although more data ... ) of Patagonian toothfish were lost due to depredation by killer whales and both killer and sperm whales. Killer ... a lower impact (>25%). Photo-identification data revealed 35 killer whales belonging to four different ... on depredation. When killer whales were absent at the beginning of the line hauling process, short lines (<5 000 ... n miles to prevent killer whales from finding them within a few hours. Although more data are still ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Author(s): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet
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Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of depredation levels
Exclusive Economic Zones: an assessment of depredation levels Abstract / Description: Interactions between ... killer whales (Orcinus orca), sperm whales (Physeter macrocephalus), fur seals (Arctocephalus spp ... ) between 2003 and 2005. In the Crozet EEZ, the reported interactions involved killer whales and sperm ... whales. These two species, alone or in co-occurrence with each other, were observed in 71% of the 1 308 ... negativamente la CPUE. Keywords: Crozet EEZ, Kerguelen EEZ, fi shery, depredation, killer whales, Orcinus ... ) and Heard Islands (unpublished data). Killer whales (Orcinus orca) and sperm whales (Physeter ... with the killer whale depredation on longlines. Indeed, observers reported that Crozet archipelago killer whales ... were required: (i) to collect data for fi shery management purposes (e.g. species targeted, tonnes ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 67–82 : Author(s): Roche, C., C. Guinet, N. Gasco and G. Duhamel