Knowra Skipjack tuna Skipjack tuna Skipjack tuna (Katsuwonus pelamis) is a fast-swimming oceanic fish found in tropical and temperate waters. It is a major food fish, sold fresh, frozen, canned, and dried.
Scombridae : Scombridae is the family of mackerels, bonitos, and tunas. Skipjack belongs to this family of streamlined, often fast-swimming fishes.
Thunniform locomotion : Thunniform locomotion is fast, efficient swimming driven mainly by the rear body and tail. Skipjack's stiff body and powerful tail support sustained high-speed movement.
Purse seine : A purse seine is a fishing net that encircles a school and closes underneath like a drawstring bag. Purse seines catch large quantities of skipjack, often around floating objects.
Yellowfin tuna : Yellowfin tuna (Thunnus albacares) is a large tropical tuna distinguished by long, bright-yellow second dorsal and anal fins. Yellowfin grows much larger and has longer fins than skipjack.
Tuna fisheries : Tuna fisheries are commercial and subsistence fisheries that harvest tuna and related species. Skipjack is one of the world's most heavily harvested tuna species.
Tuna : Tunas are large, active marine fishes in the tribe Thunnini. Skipjack is one of the smaller tuna species.
Ram ventilation : Ram ventilation is the movement of water across gills as a fish swims with its mouth open. Continuous swimming helps move oxygen-rich water across skipjack's gills.
Fish aggregating device : A fish aggregating device is a floating or anchored object used to attract schools of fish. FADs concentrate skipjack and make schools easier for purse-seine vessels to locate.
Albacore : Albacore (Thunnus alalunga) is a tuna species with unusually long pectoral fins and pale flesh. Albacore's pale meat contrasts with skipjack's darker flesh and common use in canned tuna.
Bycatch : Bycatch is the unintended capture of species or individuals during fishing. Skipjack fishing can also capture sharks, turtles, and juvenile tunas, especially around FADs.
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