Biologi dan Ekologi Thiaridae (Moluska: Gastropoda) di Danau Sentani Papua
Abstract: Lake Sentani has
been subjected to multi-pronged
pressures, involving both internal and external factor. Yet, ecologists researching the lake generally,
conduct studies on water quality, but less attention was paid towards faunal
diversity and biological resources potentials of the lake. This research is
focused on the diversity of Thiaridae species (Gastropoda). The research was
conducted for two months from October to November 2009 using line transect
methods in settlement and no settlement areas, inlet and outlet areas. The
transects was installed in the lake from the shoreline at 0 to 0.5m depth and 0.5 to 1.0m depth and 1.0 to 1.5 m depth. At each depth sample,
4 points were taken. Transect at each location, repetition was repeated 4 times. The results brought in the
diversity of Thiaridae as 7 species, namely Tiara scabra and Melanoides
granifera, Melanoides tuberculata, Melanoides canalis, Melanoides copali,
Melanoides sentaniensi, Stelomelania sp. The highest diversity were found in no
settlement region with a value of H was 0.65 and the lowest were found in
residential area with a H value was 0.57, inlet area was 0.59 and outlet area
was 0.34. Density in no settlement areas was 0.36, inlet area was 1.84 and
outlet area was 0.64. Environmental parameters was also assessed in this study,
such as temperature, pH, DO, phosphorus, nitrite and nitrate.
Penulis: Suriani Br. Surbakti
Kode Jurnal: jpbiologidd110094
