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Journal : AQUATIC

Efisiensi Dari Metode Transplantasi Rumput Laut Pada Kawasan Bekas Penambangan Timahdi Pantai Teluk Kabupaten Bangka ST., M.Si, Umroh; Utami, Eva
AQUATIC Vol 8, No 2 (2014):
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5.685 KB)

Abstract

Waters of  Bangka Island condition increasingly polluted and marine ecosystems all the time more damage due to the impact of offshore tin mining. Offshore tin mining destruct marine ecosystem and always leaves the turbidity and high sedimentation rates in the ocean. Mining of floating cause the seabed sediments are mixed with sea water, as a result suspended matter content become higher and spreading by ocean waves into seagrass ecosystems. High sedimentation rate if it exceeds the threshold, in addition to inhibiting seagrass photosynthesis, can also cause death and loss of seagrass. Seagrass has several important functions in coastal and marine areas, such as spawning, protection and enlargement ground of marine life. Seagrass bed has a very important role, therefore the seagrass damage that occurs needs to be fixed, one of the method is seagrass transplantation as restoration efforts. The aim of research was to determined the efficiency of seagrass transplantation method in accordance with waters of Bangka Island,at  tin post mining in the sea post. Seagrass transplantation method used as experimental in this research is a method of burlap sacks and Sprig Anchor. The results showed that the method is more suited to waters of Bangka Island. It is because Bangka island waters classified as fast-flowing waters. The method of burlap sacks is a method that fill sacks with substrate, so could be used as retaining current.
Keanekaragaman Perifiton Pada Daun Lamun Di Pantai Tukak Kabupaten Bangka Selatan Wibowo, Ari; Umroh, Umroh; Rosalina, Dwi
AQUATIC Vol 8, No 2 (2014):
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5.685 KB)

Abstract

Periphyton is one of organism of vegetation and animal that sticks on surface of seagrass leaves and associated with seagrass as host. Periphyton is one of component in waters productivity providers. The aims of this study are to determine the types of periphyton which sticks on the leaves of seagrass in Tukak Beach, to knowing the types of seagrass and to knowing the types of  seagrass which stuck on by periphyton. The research was conducted in May-August 2011 in Tukak Beach. The data retrieval consists of three stations, where at each station is divided into three substations, the data was taken including leaves of seagrass species and physical-chemical parameters of waters. The result of this study show that 5 species seagrass was identified which are Cymodocea rotundata, Cymodocea serrulata, Thalassia hemprichii, Enhalus acoroides dan Halodule uninervis. Periphyton was identified on seagrass leaves consisting of Fragilaria, Anabaenopsis, Diploneis, Synedra, Amphora, Nitzchia, Coleochaeta, Atractomorpha, Stylonema, Dasya, Spermothamnion and Acnanthes. Heterogenous value index (H) supreme on Thalassia hemprichii and Enhalus acoroides ranging among 2,42-2,46. Domination index (e) ranging among 0,97-0,99. Periphyton organism prefer the leaves of Thalassia hemprichii and Enhalus acoroides to stick and made as host , it cause Thalassia hemprichii and Enhalus acoroides has a width and length of leaf surface and considered condition of leaf was old.