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Journal : Omni-Akuatika

ANALISIS KUALITAS AIR DAN TEKSTUR SEDIMEN PADA DAERAH TERSEDIMENTASI DI LAGUNA SEGARA ANAKAN CILACAP Lilik Kartika Sari; Luky Adrianto; Kadarwan Soewardi; Agus S Atmadipoera; Endang Hilmi
Journal Omni-Akuatika Vol 11, No 2 (2015): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2015.11.2.962

Abstract

This paper provides an overview of the environmental quality of areas affected by sedimentation on a lagoon. Observations made on water conditions as well as the texture of sedimennya. The observed water quality parameters is salinity, pH, NO3-N, PO4-P, COD and BOD. The observation is performed also on sediment texture on the 6 stations that represents the condition of the lagoon. The addition of LANDSAT Imagery based on land area in the province of Laguna Segara Saplings in two decades is of 823,9 ha per year.Keywords : sedimentation, the quality of the environment
Stratification and Characteristic of Water Masses in Selayar Slope-Southern Makassar Strait Isnaini Prihatiningsih; Indra Jaya; Agus Saleh Atmadipoera; Rina Zuraida
Journal Omni-Akuatika Vol 17, No 1 (2021): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2021.17.1.620

Abstract

Selayar slope is the confluence of the Indonesian Throughflow (ITF) from the Makassar Strait and seasonal Java-Flores current. The CTD data from Java-Makassar-Flores (JMF) Cruise where an intensive 24-h CTD “yoyo” measurement was conducted in Selayar Slope is used to determine the stratification and characteristic of water masses in the Selayar slope - southern Makassar Strait.  The analyses were performed using TS Diagram processed with Matlab and Ocean Data View (ODV). The surface potential density of 24.25 sq  with stratification of water masses is dominated by Makassar ITF. The water mass with higher salinity (34.6 psu) is North Pacific Subtropical water (NPSW) and lower salinity (34.44 psu) is North Pacific Intermediate Water (NPIW). However, water mass with density above 24.25 sq  caused NPSW to be drastically extracted by less-saline water (34.15 psu) originated from Java Sea, where salinity profiles are more clearly observed between surface density of 22.0 sq and 23.50 sq.. Keyword: stratification and characteristic, water mass, Selayar Slope, JMF Cruise, TS Diagram