Fish community structure in the mangrove forest of Panjang Island, Banten Bay, Banten, Indonesia

Research of fish community structure in Panjang Island, Banten Bay, Banten, Indonesia (E 106° 08' 31.9" & S 5° 56' 23.4" and E 106° 08' 20.6" & S 5° 55' 29.2") has been conducted from October to December 2014 while spring tide. The aim of the research knew the fish biodiversity and fish community structure. The fishing method was used push net manually active. The location was at Station 1 (West) with sandy-mud and gravelled substrate and Station 2 (North) with the mud-reef substrate. In total, 1770 species were captured (14 families, 16 genera, and 21 species), the largest number were at Station 1 and in November (1.213 and 749 fish). Both stations had a low species diversity index (H') value (0.705 and 0.807). It supported by a low evenness index or distribution of individuals among species (E) value. Its high dominance index (D) value was due to the predominance of Ambassis gymnocephalus -Chandidae (908), Ambassis buruensis - Chandidae (297), Oryzias javanicus - Adrianichthyidae (265), Chelon sp. - Mugilidae (123), and Gerres sp. - Gerreidae (22) in large numbers. Chandidae is the most common fish in the mangrove ecosystem at Panjang Island as a resident fish.