Kajian Morfologi Ikan Nila (Oreochromis niloticus) Dalam Habitat Air Tawar dan Air Payau Fish Morfology Study of Nila (Oreochromis niloticus) in the Habitat of Fresh and Brackish Water
Main Article Content
Abstract
The goal of this research is to compare the features of parrot fish morphology (Oreochromisniloticus) in freshwater and brackish water habitat. This research conducted on the April – Mei 2017. The method of this research is qualitative method. This research had been conducted for six weeks with six repetitions. The last result of morphology covered to eyes (Organumvisus) with black-dark retina, round prominent and large, white-green operculum, grey-black dorsal fin (Pinna dorsalis), scale (Squama) black-grey lines and quite green, stomach (Abdomen) if getting pressure will be hard to the freshwater habitat, eyes (Organumvisus) with black-pale retina, round prominent and larger, white-grey operculum, black-grey dorsal fin (Pinna dorsalis) quite pale, black-grey lines scale (Squama) quite pale and unshiny, stomach (Abdomen) if getting pressure will be hard and quite mushy in the brackish water. the colors (old-green), salinity (5,04 ppt), pH (8,0), BOD (2,04 mg/l), conductivity (365,4 µs/cm), CO2 dissolved (4,56 mg/l), ammonia (0,0175 mg/l).
Keywords: parrot fish (Oreochromisniloticus), morphology, freshwater, brackish water, water quality
ABSTRAK
Penelitian ini bertujuan untuk membandingkan Karakter atau sifat morfologi ikan nila (Oreochromis niloticus) dalam habitat air tawar di Desa Sumbersekar Kec. Dau Kab. Malang dan air payau di Desa Bojoasri Kalitengah Lamongan. Metode yang digunakan dalam penelitian ini adalah metode penelitian kualitatif yang menghsilkan data deskriptif dan mencari fakta interpretasi yang tepat. Penelitian dilakukan selama enam minggu dengan enam kali pengulangan. Hasil akhir morfologi meliputi mata (Organum visus) dengan retina hitam gelap, bulat menonjol dan besar, tepi matanya berwarna keabu-abuan. Operkulum (Operculum) putih kehijauan. Sirip punggung (Pinna dorsalis) hitam keabua-abuan dan agak kehijauan. Sisik (Squama) garis-garis hitam keabua-abuan dan agak kehijauan. Perut (Abdomen) apabila ditekan akan terasa keras pada habitat air tawar. mata (Organum visus) dengan retina hitam pucat, bulat menonjol lebih besar. Operkulum (Operculum) putih keabuan. Sirip punggung (Pinna dorsalis) hitam keabua-abuan agak pucat. Sisik (Squama) garis-garis hitam keabua-abuan agak pucat dan tidak mengkilat. Perut (Abdomen) apabila ditekan terasa agak lembek pada habitat air payau.
Kata kunci: ikan nila (Oreochromis niloticus), morfologi, air tawar, air payau, Kualitas air
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