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Perubahan morfo-anatomi dan penyimpanan energi pada fase perkembangan gonad ikan senggaringan, Mystus nigriceps (Valenciennes, 1840) di Sungai Klawing Purbalingga, Jawa Tengah [Morpho-anatomical changes and energy storage during gonadal development of twospots catfish, Mystus nigriceps (Valenciennes, 1840) in Klawing River, Purbalingga, Central Java]
Ridwan Affandi1,, Benny Heltonika2, Iman Supriatna3
1Departemen Manajemen Sumber Daya Perairan, FPIK IPB
2Fakultas Perikanan dan Ilmu Kelautan-UNRI
3Fakultas Kedokteran Hewan-IPB
Departemen Manajemen Sumber Daya Perairan, FPIK IPB
Jln. Agatis, Kampus IPB Dramaga
e-mail: affandi_ridwan@yahoo.com
Diterima: 14 Desember 2010; Disetujui: 18 Oktober 2011
Abstract
A research to explore morpho-anatomcal changes and energy storage on various organs during gonadal development of twospots catfish, Mystus nigriceps was carried out in Klawing River, Purbalingga, Central Java. Morpho-anatomical parameter e.g. condition factor, viscera somatic index, adipose fin index, hepato somatic index, gonado somatic index; and energy content of muscle of dorsal region, visceral organ, adipose fin, liver, and gonad tissue were measured based on gonad development stages. The results showed that morpho-anatomy and energy content in tissues have changed during the period of gonadal development. Moreover, there were a process of storage, transfer and transformation of energetic substances for gonad maturation and spawning activities.
Keywords: energetic substances, morpho-anatomical changes, energy storage, gonadal development.