Abstract
This study aims to analyze the carrying capacity of the coastal waters of Blekok and the coast of Kerapu, Situbondo, East Java as a conservation area for mangroves, blekok birds and grouper fish cultivation. The study used thein situobservation method, carried out in January–February 2021. The sampling was on Blekok beach at latitude coordinates: -7.69742 and longitude: 113.92206, on Kerapu beach at latitude coordinates: -7.69568 and longitude: 113.89666. At each beach the data is taken at 3 stations, at each station 3 sub stations are taken. Parameters measured include physical (temperature, turbidity, TSS, TDS), chemical (pH, salinity, DO, BOD, Cu), and biology (totalColiform) were measuredin situand at the Environmental Laboratory, Situbondo Environmental Service. Analysis of Cu concentration usingAtomic Absorption Spectrophotometermethod.Coliformtotal analysis used theMost Probable Numbermethod. The data were analyzed descriptively qualitative-quantitatively and compared with the quality standard of the Minister of Environment Decree No. 51/2004. The results showed that the physical, chemical, and biological parameters of the coastal waters of Blekok and Kerapu beaches were in accordance with quality standards so the carrying capacity as a mangrove conservation area, blekok birds, grouper cultivation and tourism is very good.
Highlights
The results of the measurement of physical parameters of sea water quality indicate that the waters in the Blekok coastal area and the Kerapu beach, Situbondo have a good carrying capacity for marine life
Blekok coastal waters have higher Total Suspended Solids (TSS) and total dissolved solids (TDS) than Kerapu beaches, this is due to the high production of mangrove litter on Blekok beach which contributes to detritus in the waters
According to [14], salinity is directly proportional to TDS, meaning that if the TDS value is high, the salinity is high. This is in accordance with the results of the study that the TDS value of the coastal waters of Blekok was 23,073 ppm and Kerapu beach was 22,940 ppm followed by the high salinity of the two waters, which was 35 ppt
Summary
This northern coastal area of Java has many beaches with various uses, ranging from ports, tourism, aquaculture, conservation areas and Baluran National Park. Being the habitat of thousands of water birds, especially the Ardidae species known as blekok, so it is called Blekok beach. This beach is a habitat for various species of gastropods and bivalves (shellfish).
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