Open AccessCommunities Structure of Fish in Some Mangrove Ecosystem as a Result of the Restoration in Southern Beach of Malang, East Java Indonesia
Author(s) -
Irham Ahsanul Ridlo,
Nia Kurniawan,
Catur Retnaningdyah
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1665/1/012020
Subject(s) - species richness , mangrove , species evenness , dominance (genetics) , ecology , geography , diversity index , ecosystem , abundance (ecology) , rank abundance curve , species diversity , community structure , fishery , biology , biochemistry , gene
The change of function of mangrove ecosystem land for other purposes and logging can affect the community structure of aquatic biota, especially fish. The research objective was to determine the community structure and diversity of fish species in the mangrove ecosystem as result of restoration activity in the southern beach of Malang. Sampling were done in mangrove ecosystem of Bajulmati, Clungup, Kondang Buntung, Tamban, and Sendiki which have different restoration time. Fish sampling methods used net sampling and visual encounters. The results of fish sampling then be used to determined taxa richness, total abundance and indices of dominance, evenness, and diversity. The research results indicated that we found eight fish species in all location with different taxa richness at each location. Total of fish abundance in the range between 51-744 individu/100m 2 . Periopthalmus and Oryzias javanicus can be found at all of research location. Based on the value of the Diversity Index of fish in the research location, we found that mangrove ecosystem in the southern beach Malang had low diversity index (less than 1) with high dominance index 0.4-0.9 and low of evenness value between 0.03-0.09. It is indicated that restoration of mangrove ecosystem in Malang Southern beach still unsuccessful