Author
Dewi Wahyuni K. Baderan
Subject
- Sains
Abstract
The aim of the current study is to calculate the value of the abundance, diversity, and the density of
phyla mollusks in the Tutuwoto mangrove area of Anggrek District. The survey method is used in this
study as a method, which means that it collects the data directly at the research area. The
observations were carried out under mangrove stands. The area of the observation plot is 5m x 5m.
Phylum mollusks collected at the study site were counted by the number of individuals, abundance,
diversity, and density of the types of each species. Sanon-Wienner formula is used to calculate the
species diversity, Brower formula is used to calculate the density, and Odum formula is used to
calculate the abundance of the species. The findings show that it is found that the reasearch about
phylum mollusks in Tutuwoto mangrove area consisted of 6 (six) types namely Terebralia sulcata,
Terebralia palustris, Nerita articulate, Hexaplex trunculus, Anadara granosa, and Mactra grandis.
Based on the calculation of the abundance, diversity, and density of the mollusks phylum at the
research site, there are several types that have the highest value. In the gastropod class, Nerita
articulata has the highest score with an abundance of 30.41%, diversity of 0.36, and density of 0.17
ind / m2, followed by Terebralia sulcata with an abundance of 28.07%, diversity 0.36, and density of
0.16 ind / m2. However, the lowest is owned by Terebralia palustris with an abundance value of
17.54%, diversity of 0.31, and density of 0.10 ind / m2. The values of abundance, diversity, and
density in the bivalve class have different values. The type of Anadara granosa has an abundance
value of 53.06%, diversity of 0.34, and density of 0.08 ind / m2 while Mactra grandis has an
abundance value of 46.94%, diversity of 0.36, and density of 0.07 ind / m2. Based on the
predetermined criteria of the Gastropod class, it has the abundance in many categories, exceptional
of Terebralia palustris which has sufficient criteria.
Keywords
Mangrove, Mollusks, Tutuwoto
Publisher
Universitas Sebelas Maret
Contributor
-
Publish
2019
Material Type
ARTIKEL
Right
-
This files has been downloaded 312 times