Studi Ekologi Moluska Bernilai Ekonomi Pada Hutan Mangrove di Teluk Youtefa Kota Jayapura

ABSTRACT: Study of ecology of  mangrove  organisms at  Yotefa Bay  Jayapura has been done  from  February to December 2012. The main purpose of this study is to collect the ecological data mangrove organism focus on diversity, distribution, richness, and similarity. The study was  on organisms which have economical values for people living at the Papua Trade  Centre  area  (PTC),  Skyland,  and  Nafri.  The  data  were  collected  with  the  line  transects  and  quadrate methods,  and  data  was  examined  with  description  on  quantitative  and  qualitative  methods.  The  result  showed that  there  were  7  species  of  mangrove  organism  which  have  economical  values;  which  were  Anadara  granosa, Anadara pilula, Isognomon ephippium, Gelonia erosa, Gelonia expansa, Pinna nobilis, and Faunus ater. The diversity indexrevealed that  the highest number of species diversity  was  in PTC  and  Nafri area  which were  1,70 and the lowest species diversity  was in Skyland area  which was  1, 55. The highest species evenness (E)  was  occurred in skyland and Nafri,    which was 0,80 and the lowest  was in PTC  which was  about 0,32. The highest abundance of species occurred  in  Skyland  area  was  G.  expansa  scoring  4,9  ind/m2 and  the  lowest   abundance  in  Nafri  was  P.  nobilis scoring  1 ind/m2. The similarity index for the PTC Area, Skyland, and Nafri  was on  spesies  of  G. erosa, G. expansa, A. granosa, I. ephipium, and  F. ater.
Key words: Mollusca, mangrove, Youtefa bay, and Jayapura
Penulis: TENNY WIJAYANTI, SURIANI BR. SURBAKTI, DAN SAMUEL J. RENYAAN
Kode Jurnal: jpbiologidd130651

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