A. Francis  , F.D. Sikoki  , E.J. Ansa  , 
    Exploitation of Fishes from the Andoni River System, Niger Delta, Nigeria and Conservation Strategies,
    Journal of Fisheries International,
    Volume 2,Issue 1,
    2007,
    Pages 17-21,
    ISSN 1817-3381,
    jfish.2007.17.21,
    (https://makhillpublications.co/view-article.php?doi=jfish.2007.17.21)
    Abstract: One year (January,  December, 1999) length-frequency data sampled from catches of five randomly selected artisanal fishers that use unmotorized canoe were analyzed using FiSAT (FAO-ICLARM Fish Stock Assessment Tool) to obtain exploitation ratio of eleven fish species. Under exploitation was evident in 27.30% cases (3fish species) viz, Galeoides decadactylus: E (exploitation ratio) was O. 2000; Chrysichthys nigrodigitatus (E = O.2500) and Sarotherodon melanotheron (E = 0.5240). In 63.70% cases i.e. seven species namely Ethmalosa fimbriata (E = 0.5240); Eucinostomus melanopterus (E = 0.4589); Ilisha africana (E = 0.5540) Liza grandisquamis (E = 0.4560), Lutjanus goreensis (E = 0.740), Pomadasys jubelini (E = 0.5290) and Tilapia guinensis (E = 0.4820) the fishery can be described as being under optimum exploitation. Only Pseudotolithus elongatus (9%) is overfished. Conservation strategies include establishment of grow out brackish water fish ponds, propagation by natural seeds, control of pollution and environmental degradation.
    Keywords: Unmotorized;exploitation;chysichthys;pollution