Longline fishery targeting tunas and tuna-like species is known to produce a significant amount of catch not only for the target species, but also ecologically related like sharks, marine turtles, sea birds mammals. Recognizing this seriousness, tuna regional fisheries management organizations (t-RFMOs) have established conservation measures (CMMs) reduce bycatch and/or interaction with ecosyst...

Bycatch (the unintentional catch of non-target species or sizes) is consistently ranked as one of the greatest threats to marine fish populations; yet species-specific rates of bycatch survival are rarely considered in risk assessments. Regulations often require that bycatch of threatened species be released; but, if animals are already dead, their release serves no conservation purpose. We exa...

Skipjack tuna were observed for the first time swimming in front of bow a fishing vessel during tagging campaign North Atlantic. Video recordings show how adapted their speed and direction to vessel, using pectoral fins move from top bottom back forth across ship. We discuss potential drivers this behaviour.