Threadfin Family
Paradise Threadfin [family Polynemidae]

A family of fish where several rays of the pectoral fins are detached and elongated, sometimes greatly elongated. These "pectoral rays" are thought useful for feeling out food. Threadfins are found in the Indo Pacific and the Atlantic, several along the east coast of the U.S.. Most are salt water fish but a few live in rivers and others may enter rivers at times.


Fourfinger Threadfin - [Blue Threadfin (Aust.), Giant Threadfin, Ca Chet (Viet), Eleutheronema tetradactylum ]
Threadfin

This Indo-West Pacific fish is common from the Persian Gulf to Papua New Guinea and along the north coast Australia. It enters freshwater during the breeding season so it's sometimes listed as a freshwater fish. It can grow to 6-1/2 feet but the photo specimen was 13 inches and weighed 11 ounces. This fish is highly commercial, both wild catch and aquaculture, and frozen ones from Vietnam are found in Asian markets in Los Angeles. Packages I've purchased were labeled "Threadfin Bream" which they clearly are not.   Prep & Cooking Details.

Paradise Threadfin - [Polynemus paradiseus]
Threadfin This Indo-West Pacific fish is found from Pakistan to Vietnam. It enters freshwater during the breeding season so it's sometimes listed as a freshwater fish. It can get over 10 inches long but the photo specimen was 8-1/4 inches and weighed 3.3 ounces. Another in the package of frozen fish from Vietnam was 10-1/2 inches and 7.9 ounces but was not photographed because the tail fins had been clipped to fit the package.   Prep & Cooking Details.

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