Anthropogenic Activities and Water Quality in Relation to the Abundance of Greasyback Shrimp (Metapenaeus ensis, De Haan, 1844) in Ylang-Ylang Estuary, Noveleta, Cavite/
Macky V. Macapagal and Tricia Flor L. Rollo .--
- Manila: Technological University of the Philippines, 2019
- xi, 151pages: 29cm. +1 CD-ROM (4 3/4in.)
Thesis (undergraduate)
College of Science.--
Includes bibliography
The study was conducted to determine the anthropogenic activities and water quality in relation to the abundance of greasyback shrimps (Metapenaeus ensis, De Haan, 1844) in Ylang-Ylang Estuary in Noveleta, Cavite. Anthropogenic activities including fishing and aquaculture practices, and discharge of untreated wastewater from household and transport system were occurring near the estuary. Physico-chemical of water parameters such as temperature, turbidity, pH, total dissolved solids, salinity, conductivity, dissolved oxygen, nitrates, phosphates and total coliform were monitored for five months from June to November 2018. Temperature and pH from two sampling stations in five-month sampling periods falls within the standard set by the DENR for Class SB waters except phosphates and total coliform. Nitrates also passed the standards for Class SB water except from the month of June in brackish water. Mann-Whitney U test revealed that the physico-chemical quality of water of the two sites are not significantly different while Friedman test showed that quality of water including temperature, turbidity (only site 2), conductivity, salinity and phosphate fluctuate across five sampling periods. Statistical analysis also showed that the abundance of greasyback shrimps is positively correlated with significant effect with pH and TDS.
Keywords: anthropogenic activities, water quality, estuary, greasyback shrimps.