The structure communities of gastropods in the permanently inundated mangrove forest on the north coast of Jakarta, Indonesia (original) (raw)
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The Mangrove ecosystem of Muara Gembong has been under continuing stress by land occupation, land conversion, and abrasion. This research was aimed to reveal the mangrove and gastropods community structure circumstance. A contribution of the environmental factor was also assessed to evaluate the interaction among them and to track the changes of the ecosystem. This research was conducted by purposive sampling in 3 sampling sites, these were a full reforestation site (A), a central site, that was exist by natural process (B), also a moderate reforestation site (C), with 3 sampling replication each site. About 4 mangrove species within shoreline has been progressively important as a protective flood barrier and abrasion at Muara Gembong. The highest gastropod diversity was found in the B1 site, while the highest dominance was found in A2. The C2 site is the only site that showed us a uniform dispersion of gastropods when the other sites showed a clumped dispersion. It can be implied t...
ILMU KELAUTAN: Indonesian Journal of Marine Sciences
Public awareness and knowledge on mangrove forest biodiversity, especially gastropods, is very limited. This study aims to compare the density and diversity index of gastropod species according to their distance from the coastline and to analyze the relationship of the two with the physical environment around them. Three lanes were placed in the southern part of the mangrove forest. The first lane (LT-1) was placed about 5 m from the coastline towards the sea. The second lane (LT-2) was placed 10 m towards the sea from LT-1 and the third lane (LT-3) was 10 m from LT-2 towards the sea. In each lane there were 10 (1 mx 1 m) plots and the distance between adjacent plots was 10 m. A total of 1.432 Gastropod individuals consisting of 16 species and 7 families were collected from 30 plots. In detail 16 species (927 individuals) were collected from LT-1, 16 species (500 indv) from LT-2, and only 3 species or 5 individuals from LT-3. The density of LT-1, LT-2, and LT-3 species respectively ...
IOP Conference Series: Earth and Environmental Science, 2019
The purpose of this study was to determine the community structure of gastropods in the mangrove ecosystem in Pulo Sarok Village, Singkil District, Aceh Singkil Regency, Indonesia. This research was conducted in April 2018 located in the coastal mangrove ecosystem of Pulo Sarok Village, Singkil District, Aceh Singkil Regency. The purposive random sampling was used in this study. The results showed there were 564 individuals Gastropod in all stations consisted of 4 species of Gastropod, namely Faunus ater as many as 354 individuals, Terebralia palustris as many as 123 individuals, Neritina turrita as many as 58 individuals and Neritina semiconica as many as 29 individuals. The highest density (D) was found at station 3 with a value of 2.44 Individuals per m−2. The diversity (H ') obtained from the three stations ranged from 0.50 to 1.77 which was categorized a the low and medium levels. Evenness index (E) from 0.14 to 0.37 which were in the low category. Furthermore, Domination i...
Diversity of gastropods in mangrove ecosytem of western coast of Aceh Besar District, Indonesia
The objective of the present study was to evaluate the diversity of gastropods in mangrove ecosystems of the western coast of Aceh Besar District, Indonesia. The sampling was done during March to April 2014 at four sampling locations and covered four villages namely Alue Naga, Kajhu, Neuheun and Ujung Batee. Three transects were determined at every sampling location and each transect had three plots (1 m x 1 m) and the gastropods were collected at the plots randomly by filtering the sediment using two level sieve. The study showed that Terebralia sulcata was the predominant species and this species was found at all of sampling locations. The Shannon-Wiener diversity index of gastropods was ranged between of 1.549 to 2.036, with an average value of 1.834. It was concluded that the diversity index of gastropods in western coast of Aceh Besar District was at low category.
Diversity of gastropods in mangrove ecosystem of western coast of Aceh Besar District, Indonesia
Aacl Bioflux, 2015
The objective of the present study was to evaluate the diversity of gastropods in mangrove ecosystems of the western coast of Aceh Besar District, Indonesia. The sampling was done during March to April 2014 at four sampling locations and covered four villages namely Alue Naga, Kajhu, Neuheun and Ujung Batee. Three transects were determined at every sampling location and each transect had three plots (1 m x 1 m) and the gastropods were collected at the plots randomly by filtering the sediment using two level sieve. The study showed that Terebralia sulcata was the predominant species and this species was found at all of sampling locations. The Shannon-Wiener diversity index of gastropods was ranged between of 1.549 to 2.036, with an average value of 1.834. It was concluded that the diversity index of gastropods in western coast of Aceh Besar District was at low category.