Seagrass

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  • Topic: Seagrass, Seawater, Halophila
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Biodiversity Assessment of Invertebrates in the Seagrass Ecosystem of Canigao Island, Matalom, Leyte

Bernabe, Darrienne Maureen P.
Cabo, Carlito Jr. C.
Cera, Abraham S.
de la Pena, Marjolaine L.
Garcia, Lora Mae S.
Garcio, Arah O.
Lelina, Francheska Marie U.
Ormeneta, Ma. Grace Raquel R.

Division of Natural Sciences and Mathematics
University of the Philippines Visayas Tacloban College
Magsaysay Boulevard, Tacloban City

October 2012
ACKNOWLEDGEMENT
We, the researchers would like to extend our deepest and warmest gratitude to all those who contributed to the conduct of our study. First of all, we would like to thank God Almighty for giving us enough knowledge, strength, and determination to start and to finish the study and for keeping us safe despite the storm. To our parents, we express our sincerest gratitude and appreciation for giving us enough emotional and financial support in every step we took. To our instructor, Ms. Maria Elisa Gerona, we thank her for guiding us throughout the conduct of the study, for giving us the opportunity to explore the world of invertebrates and for imparting us new knowledge. To the other DNSM faculty and staff, Mr. Marjhun Ricarte, Ms. Mary Annilyn Villar, Mr. Ryan Daga, Mr. Dave Palen and Mr. Rey Verona, we thank them for accompanying and guiding us throughout the trip.

To the UPVTC Dean, Prof. Margarita de la Cruz, we would like to express our utmost gratitude for approving and showing her support for our activity. To our classmates, we express our thankfulness for sharing their knowledge and helping us in their own simple ways. And to all who helped and aided us in one way or another, we thank you. This study would not have been possible without your support. ABSTRACT

In this study, the seagrass biome in Canigao Island, Matalom, Leyte was surveyed. The researchers evaluated the present organisms inhabiting the marine ecosystem. With accordance to this, the researchers considered the physicochemical properties- such as salinity, pH, temperature, canopy height, and depth- which greatly affect the growth and development of the inhabitants, of importance. All of these procedures were done in triplicates to ensure consistency and accuracy. For the biotic and abiotic components, the researchers used the belt transect method and obtained data through laying a 0.5x0.5 meter quadrat along the 50 meter transect line. Two different seagrass species present, namely the Halophila ovalis and Thalassia hemprichii. Sea urchins, bivalves, gastropods, sponges, sea cucumbers, gastropods, hermit crabs, corals, and worms were also discovered as the primary species of invertebrates inhibiting the ecosystem. The physicochemical properties of the seagrass biome were suitable for living of the seagrass species, invertebrates, and other inhabitants of the area. There are 12 classes of invertebrates present in this community and 41.4% of these are gastropods. With these, the invertebrates in the area are still not considered diverse given the value obtained from the Simpson’s Diversity Calculator which is 0.1995. Lastly, the seagrass species are not very healthy because the environment has not reached its optimum productivity. Table of Contents

Acknowledgement……………………………………………………………………………. Abstract……………………………………………………………………………………..... Table of Contents……………….……………………………………………………….….. Introduction………….………………………..………………………………………….….. Review of Related Literature……………………..………………………………………..... Materials and Methods

Study Site……………………………………………………………………………..
Data Collection……………………………………………………………….…….... Results……………….………………………………………………………….…………… Discussion…………………………………………………………………………………... Conclusion………………………………………………………………………………...… References………………………………………………………………………...………… Appendices

Appendix A…………………………………………………………………………
Appendix B…………………………………………………………………………
Appendix C………………………………………………………………………… INTRODUCTION
The seagrass flora in the Philippines is very diverse....
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