Density and distribution pattern of sea urchins in Barangay Panubuatan, Iba, Zambales
Date of Publication
1993
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Biology
College
College of Science
Department/Unit
Biology
Abstract/Summary
Four different species of sea urchins were found along a 200 meter transect line which was laid perpendicular to the coast of Zambales Bay. The species were identified as Echinometra oblonga, Diadema setosum, Echinothrix calamaris and Tripneustes gratilla.Sea urchins found within the ten-9 square meter quadrats which were laid out every ten meters along the transect were counted and classified.E. Oblonga showed the highest frequency followed by D. setosum, E. calamaris then T. gratilla. Both D. setosum and E. calamaris showed a clumped distribution while E. oblonga showed a random distribution in all the sampling months.E. oblonga were mostly found in rock crevices while D. setosum and E. calamaris were found in rocky and sandy substratum. T. gratilla was found in the sea grass area.The species D. setosum showed the highest wet weight followed by E. calamaris, T. gratilla then E. oblonga. E. calamaris showed the highest measurement in diameter followed by T. garatilla, D. setosum and then E. oblonga.
Abstract Format
html
Language
English
Format
Accession Number
TU06060
Shelf Location
Archives, The Learning Commons, 12F, Henry Sy Sr. Hall
Physical Description
48 leaves
Keywords
Sea-urchins; Geographical distribution of animals and plants
Recommended Citation
De Mesa, E. R. (1993). Density and distribution pattern of sea urchins in Barangay Panubuatan, Iba, Zambales. Retrieved from https://animorepository.dlsu.edu.ph/etd_bachelors/1136
