Page 11 - IJMS-2014v4n66

International Journal of Marine Science 2014, Vol.4, No.67, 1-6
http://ijms.biopublisher.ca
3
Results and Discussion
The abundance of molluscs
Molluscs that are found comprised of Phylum
Molluscs are divided into three classes, i.e., Bivalvia,
Gastropoda, and Pelecypod, which consist of 13
genera and 14 species and 52 individuals. The class
bivalvia consists of four genera and five dominant
species such as Anomalodiscus squamosus, Donax
vettatus, and Timoclea fabula. The class gastropod
consists of six genera; the six dominant species are
such as Clypeomorus coralium, Nassarius pollus,
Telebraria palusris and Anadara Granosa. The
pelecypod consists of three genera and three species
in which the three dominant species are such as
Hiatula clinrisis and Tellina timornsis . The
compositions of molluscs found during the research
in Tallo River estuary are shown in the following
Table 1 and Figure 1.
Table 1 Classification of the types of molluscs found in Tallo River estuary
Phylum Class Genus Specie Total Abundance (Ind/m2 )
Mollusc Bivalvia Anomalodiscus Anomalodiscus squamosus 13 65
Arca Arca pectunculoides 1 5
Donax Donax vittatus 2 10
Timoclea Timoclea ovata 1 5
T. fabula 1 5
Gastropod Anadara Anadara granosa 2 10
Aneatome Aneatome helena 1 5
Clypeomorus Clypeomorus coralium 5 25
Nassarius Nassarius pollus 5 25
Strombus Strombus urceus urceus 1 5
Tereblaria Teleblaria palusris 5 25
Pelecypod Anadara Anadara antiquata 1 5
Hiatula Hiatula cleinensis 52 260
Tellina Tellina timorensis 4 20
Total 94 470
Figure 1 The physical shape of the molluscs found in Tallo River estuaries