Developmental time table of the sea urchin Tripnuestes gratilla Linn. found in Talin Bay, Matuod, Lian, Batangas
Date of Publication
1992
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Biology
College
College of Science
Department/Unit
Biology
Abstract/Summary
The developmental time table of the sea urchin species, Tripnuestes, gratilla Linn. found in Talin Bay, Matuod, Lian, Batangas was established under laboratory conditions of water temperature (26 + 1.63 centigrade, pH (8.4 + - 0.78) and salinity (34.0 + 0.23 ppt. The test organism were allowed to spawn using the chemical induction technique by Kobayashi (1971). The eggs and sperms were mixed and allowed to develop in culture beakers containing aerated, filtered sea water. Developing embryos were observed microscopically (43x) at different time interval within the 48 hour culture period.The study showed that the fertilization was attained in two to three minutes after the sperms were added to the eggs. Division of the two cell stage were obtained from 70 to 80 minutes. Hatching of the blastula was observed after 540 to 600 minutes. The four armed pluteal larvae stage was the highest developmental stage observed within the 48-hour culture period, taking place in 2340 minutes after addition of the sperm to the eggs.
Abstract Format
html
Language
English
Format
Accession Number
TU05621
Shelf Location
Archives, The Learning Commons, 12F, Henry Sy Sr. Hall
Physical Description
65 leaves
Keywords
Sea-urchins; Fertilization (Biology); Embryology; Experimental
Recommended Citation
Cornista, J. G. (1992). Developmental time table of the sea urchin Tripnuestes gratilla Linn. found in Talin Bay, Matuod, Lian, Batangas. Retrieved from https://animorepository.dlsu.edu.ph/etd_bachelors/1094
