Abstract
Environmental stressors which coming from anthropogenic wastes that indirectly enters into the river waters also affect the biota's health in the ecosystem such as the Tilapia Fish (Oreochromis niloticus) which is found in the waters of the Tukad Badung River, Bali. The presence of parasites in fish is also associated with changes of the water quality. The objectives of this study is to provide data and information on the inventory and composition of the parasite species in Tilapia fish (Oreochromis niloticus) as the aquatic health biomonitoring of in the effort of sustainable river ecosystem management. The results of ectoparasit observation of the Tilapia which obtained from five stations in Tukad Badung waters found 6 types of ectoparasites, which are Trichodina sp. Dactylogyrus sp. Gyrodactylus sp., Chilodonella sp., Vorticella sp. and Lernea sp. The composition of the ectoparasite species of nila tilapia fish (Oreochromis niloticus) obtained from all five research stations in Tukad Badung waters by percentage of presence of ectoparasite Trichodina sp. are 70%, Dactylogyrus sp. 31%, Gyrodactylus sp. 4% and Chilodonella sp., Vorticella sp. and Lernea sp. 1%.
Highlights
Environmental stressors which coming from anthropogenic wastes that indirectly enters into the river waters affect the biota's health in the ecosystem such as the Tilapia Fish (Oreochromis niloticus) which is found in the waters of the Tukad Badung River, Bali
The objectives of this study is to provide data and information on the inventory and composition of the parasite species in Tilapia fish (Oreochromis niloticus) as the aquatic health biomonitoring of in the effort of sustainable river ecosystem management
International Journal Fisheries and Aquatic Studies, 2(5), 118-122
Summary
Sungai memiliki penting bagi makhluk hidup, salah satunya sebagai penampung air dari daerah hulu bagian atas dan mengalir hingga ke hilir, oleh karena itu memungkinkan terpengaruh oleh tata guna lahan dan luasnya daerah aliran sungai, sehingga dapat mempengaruhi kualitas air sungai (Odum, 1993). Selain itu juga masuknya limbah domestik dan industri ke dalam sungai seperti pelapisan logam, cat atau tinta warna dan percetakan merupakan stresor lingkungan perairan yang hingga akhirnya dapat menyebabkan dampak. Stresor lingkungan perairan tersebut juga secara langsung berdampak terhadap kehidupan biota yang mendiami ekosistem perairan sungai antara lain seperti adanya kerusakan jaringan dilihat dari gambaran histopatologi seperti halnya yang pernah dilaporkan Kusumadewi dkk. (2015), terkait adanya biokonsentrasi logam berat serta gambaran histopatologi Ikan Mujair pada ekosistem perairan Sungai Tukad Badung, Bali. Informasi awal terkait inventarisasi dan komposisi jenis parasit pada IkanNila (Oreochromis niloticus) di Perairan Sungai Tukad Badung menjadi penting untuk dilakukan sebagai upaya biomonitoring kesehatan ekosistem perairan sungai berkelanjutan
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