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The gizzard shad's dorsal fin starts behind the insertion of the pelvic fins, and the last ray is greatly lengthened. They have a long anal fin, with 25 to 36 long soft rays on the fin. [6] The mouth of the gizzard shad has a short, wide, upper jaw with a deep notch along the ventral margin, and a weak, relatively smaller, lower jaw.
The Bloch's gizzard shad (Nematalosa nasus), also known as gizzard shad, hairback, long-finned gizzard shad, long-ray bony bream and thread-finned gizzard shad, are a widespread and common, small to medium-sized anadromous fish found in all marine, freshwater and brackish waters throughout Indo-West Pacific, towards eastward of Andaman Sea, South China Sea and the Philippines to Korean peninsula.
Anodontostoma chacunda or Chacunda gizzard shad is a small species of gizzard shad found in both fresh and marine waters. [1] The fish is from the family Clupeidae. [2]
This toxin results in the fish developing bleeding lesions, and their skin flakes off in the water. The dinoflagellates then eat the blood and flakes of tissue while the affected fish die. [33] Fish kills by this dinoflagellate are common, and they may also have been responsible for kills in the past which were thought to have had other causes ...
VHS disease in a gizzard shad. Viral hemorrhagic septicemia (VHS) is a deadly infectious fish disease caused by Viral hemorrhagic septicemia virus. It afflicts over 50 species of freshwater and marine fish in several parts of the Northern Hemisphere. [1] Different strains of the virus occur in different regions, and affect different species.
The threadfin shad (Dorosoma petenense) is a small pelagic freshwater forage fish common in lakes, large streams and reservoirs of the Southeastern United States.Like the American gizzard shad, the threadfin shad has an elongated dorsal fin, but unlike the gizzard shad, its mouth is more terminal without a projecting upper jaw.
The situation prompted investigations and a long-running political row about the potential cause of the die-off. According to council papers, the Crustacean Deaths Collaborative Working Group, set ...
Dorosoma anale Meek, 1904 (Mexican river gizzard shad) Dorosoma cepedianum (Lesueur, 1818) (American gizzard shad) Dorosoma chavesi Meek, 1907 (Nicaragua gizzard shad) Dorosoma petenense (Günther, 1867) (threadfin shad) Dorosoma smithi C. L. Hubbs & R. R. Miller, 1941 (Pacific gizzard shad)