Notes on the Gracious Sea Urchin Tripneustes gratilla (Echinodermata: Echinoidea) in Pag-asa Island, Kalayaan, Palawan, Philippines
Average rating
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Star rating
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Author
Balisco, Rodulf Anthony TDate
2015-07-01
Metadata
Show full item recordAbstract
The Gracious Sea Urchin Tripneustes gratilla is one of the most heavily exploited sea urchins in the Philippines. However, knowledge about its status in Palawan especially in Pag-asa Island, Kalayaan is wanting. The study was conducted to determine the size structure, population density and test diameter-weight relationship of T. gratilla in Pag-asa Island, Kalayaan. Transect surveys at the intertidal area of the island revealed an average density of 3,500 ind.ha-1. The test diameter ranged between 2.6 and 8.8 cm, and body weight ranged between 8 and 248 g. Other than T. gratilla, four other echinoid species were recorded but in very less number. While it appears that T. gratilla is under exploited in Pag-asa Island, policies affecting its sustainable utilization are suggested.Journal
The Palawan ScientistVolume
7Page Range
27-35Resource/Dataset Location
https://drive.google.com/file/d/0BzOzTYf_v1niV2NsNVpsenlSQ01PTC10Vm1aVHVwNmQwVklr/viewCollections