Summary Information on Whale Shark and Cetacean Interactions in the Tropical Wcpfc Purse Seine Fishery
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An Indicator-based Analysis of Key Shark Species based on Data Held by SPC-OFP
Longline and purse seine logsheet and observer datasets held by SPC-OFP were examined to assess the stock status of eight WCPFC key shark species. Both longline and purse seine logsheet datasets suffer from missing shark catch records and a lack of species-specific recording, therefore the indicator analysis was based on observer data only. Shark data from the observer data sets are, however, a...
متن کاملPost-release survival of juvenile silky sharks captured in a tropical tuna purse seine fishery
Juvenile silky sharks Carcharhinus falciformis comprise the largest component of the incidental elasmobranch catch taken in tropical tuna purse seine fisheries. During a chartered cruise on board a tuna purse seine vessel conducting typical fishing operations we investigated the post-release survival and rates of interaction with fishing gear of incidentally captured silky sharks using a combin...
متن کاملBusan, Republic of Korea Catch per Unit Effort of Oceanic Whitetip Sharks in the Western and Central Pacific Ocean Wcpfc‐sc8‐2012/sa‐ip‐10 Catch per Unit Effort of Oceanic Whitetip Sharks in the Western and Central Pacific Ocean
This paper follows from the indicator based analysis presented to the Western and Central Pacific Fisheries Commission (WCPFC) Scientific Committee (SC7, Clarke et al. 2011). Following a brief summary of exploratory data analysis, this report presents a Catch Per Unit Effort (CPUE) standardization for oceanic whitetip shark (Carcharhinus longimanus) taken in longline and purse seine fisheries b...
متن کاملShort communication: Identification of By-catch species of tuna purse seiners in Iranian waters of Oman Sea
Tuna purse seine fishery is a commercial and industrial fishery in the Iranian waters of Oman Sea. An observer programme was conducted to identify the by-catch composition of the tuna purse seine fishery in the Iranian waters of the Oman Sea. Investigations were carried out on board of purse seiner vessel “named Parsian Shila” between September and October 2015. The by-catch was composed of 17 ...
متن کاملSCIENTIFIC COMMITTEE FOURTH REGULAR SESSION 11-22 August 2008 Port Moresby, Papua New Guinea EFFECTS OF GEAR CHARACTERISTICS ON THE PRESENCE OF BIGEYE TUNA (Thunnus obesus) IN THE CATCHES OF THE PURSE-SEINE FISHERY OF THE EASTERN PACIFIC OCEAN WCPFC-SC4-2008/FT-IP-1
Effects of gear characteristics on the presence of bigeye tuna (Thunnus obesus) in the catches of the purse-seine fishery of the eastern Pacific Ocean Overfishing of bigeye tuna in the eastern Pacific Ocean has motivated a search for a practical means of reducing the catch of bigeye tuna in mixed species aggregations. To explore the effects of gear characteristics on the catch of bigeye tuna, a...
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