Liga Insani, ,- and Veryl Hasan, ,- and Fitri Sil Valen, ,- and Fajar Surya Pratama, ,- and Maheno Sri Widodo, ,- and Abdul Rahem Faqih, ,- and R. Adharyan Islamy, ,- and Akhmad Taufiq Mukti, ,- and Wahyu Isroni2, ,- (2020) Presence of the invasive nile Tilapia Oreochromis niloticus Linnaeus, 1758 (Perciformes, Cichlidae) in the Yamdena Island, Indonesia. ECOLOGY, ENVIRONMENT AND CONSERVATION, 26 (3). pp. 1115-1118. ISSN 0971-765X

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Abstract

Nile Tilapia Oreochromis niloticus is native fish to North Africa, with introductions reported from many regions in the worldwide. In Indonesia, O. niloticus was reported in the several conservation islands. On 11- 29 June 2019 specimens of O. niloticus were captured from temporary swamp and estuary in Yamdena Island, Indonesia. These records are among first of this species from a remote island in the Eastern Indonesia Archipelago. In many cases, introduced of non-native fish would cause a negative impact on the aquatic fauna by predation of larvae and eggs of native fish, so that the presence of the O. niloticus is a danger alert. The specimens of O. niloticus were characterized as follows dorsal spin rays 15, dorsal soft rays 10, pectoral fin rays 11, pelvic spin rays 1, pelvic soft rays 5, anal spin rays 8, anal soft rays 10. Other description of spesific morphological characters of a specimen are provided.

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