Gastropod community on seagrass ecosystem in Makalisung coast
Kaseger, C.; Lalita, J.D.; Tilaar, F.F.; Tombokan, J.L.; Mandagi, S.V.; Ngangi, E.L.A. (2021). Gastropod community on seagrass ecosystem in Makalisung coast. Jurnal Ilmiah "PLATAX" 9(2): 314-320. https://dx.doi.org/10.35800/jip.v9i2.34974
In: Jurnal Ilmiah "PLATAX". Universitas Sam Ratulangi: Manado. e-ISSN 2302-3589, more
|  |
| Keywords |
Gastropoda [WoRMS]
Marine/Coastal |
| Author keywords |
Gastropod; Density; Diversity; Dominance; Association |
| Authors | | Top |
- Kaseger, C.
- Lalita, J.D.
- Tilaar, F.F.
|
- Tombokan, J.L.
- Mandagi, S.V.
- Ngangi, E.L.A.
|
|
| Abstract |
The aim of the research is to know various species of gastropods and gastropod community structure through species density, percent density, dominant species, and association of species of gastropods on seagrass ecosystem. Research with the method of quadrat transect is put perpendicular to the coastline. Gastropod species are found in the seagrass ecosystem on the Makalisung coast consist of 9 species, 7 families, and 4 ordos. Gastropod community structure on seagrass ecosystem is found with species density is highest Cymbiola nivosa as big as 0.64 (ind/m2) with highest percent density 34.04 %. Diversity of species of gastropods on four-station that H’> 1 highest in fouth station as big as H’= 1.72. The dominance of species is highest Cymbiola nivosa as big as C=0.44, where the result of research in generally dominancy C < 0.25 belong to low. Association of species of gastropods on seagrass ecosystem found three characteristics, (1) classifying of positive association is Cypraea tigris and Monetaria annulus, Cypraea tigris and Cymbiola nivosa, Strombus labiatus and Cyclope pellucida, Strombus labiatus and Cymbiola nivosa, Monetaria annulus and Cerithiun nodulosum, Cymbiola nivosa and Cerithiun nodulosum; Cerithiu nodulosum and Angaria dephinus and Faunus ater. (2) Classification of not associated Angaria dephinus and association close to zero (0,04) is Monetaria annulus and Cymbiola nivosa. (3) Classifying of negative association based on the result of the research shows most of the negative pairs of gastropod species on seagrass ecosystem. |
|
