Phytoplankton productivity of Talin Bay, Batangas with notes on physico chemical characteristics of water

• Main Author: Serrano, Noel
• Format: text
• Language: English
• Published: Animo Repository 1995
• Subjects: Phytoplankton > Research; Water > Analysis; Primary productivity (Biology)Marine flora > Batangas
• Online Access: https://animorepository.dlsu.edu.ph/etd_bachelors/1300
• Institution: De La Salle University

The analysis of the physico-chemical characteristics, phytoplankton productivity and composition were done in Talin Bay for six months from July to December 1994. Among the parameters measured were: water temperature, pH, secchi disk transparency, depth, dissolved oxygen content, salinity, conductivity, total hardness, total alkalinity and nitrate, orthophosphate and silicate concentration. Primary productivity was determined using the light and dark bottle method. Biomass was also measured as chlorophyll a concentration and total cell count using Sedgewick-rafter method. Phytoplankton were also collected and identified. Fluctuations of different physico-chemical parameters were observed during the collection although the levels were still within the DENR water criteria prescribed for fishery water Class II. The phytoplankton belong to 4 Phyta, 4 classes, 1 subclass, 9 orders, 2 suborders, 23 families, 50 genera and 70 species. Phylum Chrysophyta had the most number of species represented.