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Title Influence of hook types on hooking rate, hooking location and severity of hooking injury in experimental handline fishing in Kerala
 
Names Gipson, E.
Thomas, S.N.
Date Issued 2016 (iso8601)
Abstract Hooking rate, hooking location and severity of
wound were assessed during 163 experimental
handline operation, targeted for fishes like tilapia,
pearlspot and snapper. Two barbed hook types viz.,
circle hook (non-offset size 9/0) and J-hook (0° offset
size 6) were deployed in an alternative fashion
using natural dead baits viz., oil sardine and chicken
waste. Circle hook had significantly lower (p<0.05)
hooking rate than J-hook. Type of hook affected
hooking location as 78% of the fish caught by circle
hook were lip hooked, 22% deep hooked and there
was no foul hooking. With J-hook, 50% fishes were
lip hooked, 43% deep hooked and 7% foul hooked.
The difference in severity of wounds in the two
types of hooks was statistically significant (p<0.05).
In fishes caught by circle hooks, 67% had minor
injuries, 22% had moderate injuries and 11%
suffered severe injuries. In contrast, 43% fishes
caught by J-hook had severe injuries, 36% moderate
injuries and 21% had minor injuries. Results suggest
that use of 9/0 non-offset circle hook in the handline
fishery of Kerala, India may increase the survival
of escaped or released fish due to lip hooking and
low severity of injuries.
Genre Article
Identifier Fishery Technology 53 : 284 - 289