RAI-AP-08/2004RAI-AP-08/2004
Pilot Action, of Experimental
Fishing, with Surface Long Line gear, in
Waters of Southwest Indian Ocean
Date: 12 Dec 2004 – 12 Dec 2005Date: 12 Dec 2004 – 12 Dec 2005
Having caught Having caught 2810628106 specimens, 25 were sea turtles, 3 were specimens, 25 were sea turtles, 3 were sea mammals and another 3 were sea birds. This ByCatch sea mammals and another 3 were sea birds. This ByCatch suppose 0,1% of the whole specimens caught by two Spanish suppose 0,1% of the whole specimens caught by two Spanish longliners during 2005 in Soutwest Indian Ocean.longliners during 2005 in Soutwest Indian Ocean.
RAI-AP-08/2004RAI-AP-08/2004
Number of turtles per species(n=25 specimens)
DCC Dermochelys coriacea
68%
TOE Non-identifyed12%
LOL Lepidochelys olivacea
4%
CCC Caretta caretta8%
CMM Chelonia mydas8%
Data collected are Data collected are totally insufficient to totally insufficient to get any conclusions. get any conclusions. However, there is an However, there is an important detail which important detail which is worthwhile to be is worthwhile to be taken into account: taken into account: most of sea turtlesmost of sea turtles (19) (19) were caught owing to were caught owing to one of the parts of their one of the parts of their body, mainly front body, mainly front tips, tips, were hookedwere hooked o had any o had any kind of tangle with long kind of tangle with long line. Only the caught of line. Only the caught of four of them has to be four of them has to be directly related to the directly related to the bite of hook. bite of hook.
RAI-AP-08/2004RAI-AP-08/2004
SPECIES Scientific name Maximum Depth (Head) Maximum Depth (End) Comments
CCC Caretta caretta 32,5 Tangled
105,8 Tangled
CMM Chelonia mydas 36,1 Type of caught unknown
36,2 Bit the hook
DCC Dermochelys coriacea 27,5 41,2 Tangled
27,7 31,5 Tangled
29,0 41,2 Tangled
32,5 Tangled
37,0 70,0 Tangled
37,2 Tangled
43,4 Tangled
44,5 90,7 Tangled
115,4 Tangled
125,2 Bit the hook
128,5 46,3 Tangled
185,6 Tangled
23,7 Tangled
56,0 Tangled
102,7 Tangled
155,4 Bit the hook
Type of caught unknown
LOL Lepidochelys olivacea 26,0 Tangled
TOE Tortuga de placas no identificada 35,6 Tangled
96,3 39,1 Bit the hook
54,1 Tangled
RAI-AP-08/2004RAI-AP-08/2004
Percentages of sea turtles depending on the type of caught (n=25 specimens)
Type of caught unknown
8%
Tangled76%
Bit the hook16%
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