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Journal : Journal of Tropical Marine Science

Pemetaan Kondisi Lamun di Perairan Sekitar Pulau Lepar Kabupaten Bangka Selatan Suci Puspita Sari
Journal of Tropical Marine Science Vol 2 No 2 (2019): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (243.086 KB) | DOI: 10.33019/jour.trop.mar.sci.v2i2.1451

Abstract

Status of seagrass ecosystem in South Bangka is needed to determine the indication of seagrass damage as a result of tin mining activities in coastal areas. Seagrass health conditions are analyzed through the density and seagrass cover so that the condition can be known. The method used to monitor seagrass conditions in this research is the utilization of remote sensing and geographic information systems (GIS) technology, using the algorithm of Depth Invariant Index (DII). Seagrass distribution based on the result of data processing of Landsat in 2017 shows that the Seagrass beds in the South Bangka water area of 4066.7 Ha. Species found from 7 sampling points, namely Enhalus acoroides, Thalassia hemprichii, Halophila ovalis, Cymodocea serrulata, Halodule Uninervis, and Cymodocea rotundata. Its seagrass conditions are generally included in the "poor" category.
Daya Tetas Telur Cumi-Cumi (Uroteuthis chinensis) pada Salinitas yang Berbeda Jaya Samputra Pirmansa; Eva Prasetiyono; Suci Puspita Sari; Dwi Febrianti; Ahmad Fahrul Syarif
Journal of Tropical Marine Science Vol 3 No 1 (2020): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (219.408 KB) | DOI: 10.33019/jour.trop.mar.sci.v3i1.1702

Abstract

Aquatic environment influences squid hatching rates. Hatching eggs is purpose to keep the availability stock squid. The research has been done in March – April 2017. This research aims to evaluate the effect of salinity for squid eggs hatching rate. The method used in this research was experiment. The research was in Aquaculture Hatchery, Faculty of Agriculture, Fishery and Biology of TheUniversity of Bangka Belitung. The squid eggs was from the the Sea of Riau Silip (Tuing village). The squid eggs data and hatching time were analyzed descriptively. Hatching Rate, mortality, increase of squid eggs and water quality were analyzed with ANOVA. The result showed that the fastest hatching time on the salinity was 32 g/l and the lowest salinity was 24 g/l . The Results of best hatching rate on the salinity was 28 g/l and 32 g/lwith the value of each salinity were 96 % ± 6,10 and 92,67 % ± 6,89. The squid larva mortality was highest at salinity 24 g/l with the value was 77,1 % ± 16,26 and The lowest on the salinity was 28 g/l with the value was 4,1 % ± 2,88.