Trevally can live for about 40 years. They grow quickly for the first four years, taking about 5 years to reach maturity. Afterward, growth slows down. Spawning data is difficult to find for the trevally, however, their gonads indicate that they are serial spawners (spawning several times in the season) and that spawning occurs over the summer. These fish do not appear to have defined spawning grounds. Trevally eggs are pelagic. They hatch about a day after fertilization and the larvae settle after 2-3 months in the plankton. Juvenile fish are found in inshore areas, such as estuaries and harbors.
The Yellowspotted Trevally are found in rocky and coral reef areas, offshore banks, and seagrass beds in the Indo-West Pacific tropical and subtropical regions of the world. These fish are often seen patrolling the edge of reefs in a continuous search for food. Although they can grow up to 1.2 m long, they are usually caught by fishermen at about 1 kg.
The most defining characteristic of the Yellowspotted Trevally are the yellow/golden spots on either side of the fish. It is quite skinny and tall, with blue-green skin on the top portion fading to a silvery-white below. Yellowspotted Trevally are a great table fish and taste delicious when cooked a variety of ways including; grilled, deep friend, or cooked in sauce.
This fishery uses a longline to catch a variety of pelagic fish on the high seas such as tuna and swordfish. A deep-set longline is used to primarily target tuna and a shallow-set longline is used to target swordfish or mixed species including bigeye, Albacore and yellowfin tuna. Baited hooks are attached to a line that floats in the ocean using buoys and flagpoles.
This fishery uses a variety of artisanal hook-and-line methods to catch coastal pelagic fish such as tuna, marlin, swordfish, mahi mahi, wahoo (ono) and others. A pole and line with live bait scattered into the water is used to catch feeding skipjack tuna. Trolling with lures and lines, and handlines with lures, lines and bait bags are used to target larger fish such as bigeye tuna, swordfish, mahi mahi and wahoo.
This fishery uses rods and reels to catch six species of snapper and one species of grouper that are called “bottomfish.”
This fishery uses a variety of artisanal methods to catch reef fish, including handlines, and pole and lines. Catch rates are low, usually only a few pounds per hour with little bycatch (discards). These small-scale fishing methods are similar to those traditionally used by native Hawaiians.
Mangrove Crab HarvesterCanavieiras, Brazil
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