5. major exploited fish species | 水產百科網

(marinecatfish),Trichiuruslepturus(hairtail/silverfish),Cybiumtritor(spanishmackerel),Sardinellaspp.,Sphyraenaspp.(barracuda)andtilapiinespecies.Table ...

There is a definite pattern in the distribution of fishes on the Nigerian continental shelf. The original description of the distribution of demersal fishes by Longhurst (1965) is still valid. The available data indicate that the distribution of a number of species is limited by the depth of the thermocline and is influenced by the type of deposits (sand and silts) and the depths on the continental shelf, the slope of which is variable.

Though the broad distribution of the commercially exploited fish species groups is known, there is no adequate information on the composition of communities or on temporal and spatial distribution of stocks. In the circumstances of a very long coastline (about 800 km), it is almost certain that many species form more than one stock. The distribu...