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Lab Report: Coral Reef Ecosystem - LIT Technique. This experiment aims to assess the sessile benthic community of coral reefs in around the Pramuka Island (one of the islands amongst the Thousand Islands located in Indonesia)

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Introduction

Environmental Systems and Societies LAB REPORT: Coral Reef Ecosystem - Line Intercept Transect Kyla Birgitta Arsadjaja August 12, 2011 TABLE OF CONTENTS Data Collection i. Raw Data ii. Processed Data Data Analysis Conclusion Evaluation Reflection References DATA COLLECTION Raw Data: SITE 1 DISTANCE (m) SAND/CORAL 25 - 25.7 Sand, dead corals 25.7 - 26.2 CSM 26.2 - 27.1 Sand, dead corals 27.1 - 27.8 Others (algae) 27.8 - 29.1 Sand, dead corals 29.1 - 30.35 CM 30.35 - 32 Sand, dead corals 32 - 32.6 Soft coral (Simularia sp) 32.6 - 33.6 Sand, dead corals 33.6 - 34.3 Soft coral (Simularia sp) 34.3 - 35.4 Sand, dead corals 35.4 - 35.6 CM 35.6 - 36.3 Sand, dead corals 36.3 - 37 CB 37 - 37.1 Sand, dead corals 37.1 - 37.3 CE 37.3 - 40.2 Sand, dead corals 40.2 - 40.4 Soft coral (Simularia sp) 40.4 - 42.2 Others 42.2 - 43.8 Sand, dead corals 43.8 - 44.6 Soft coral (Simularia sp) 44.6 - 45 Others SITE 2 DISTANCE SAND/CORAL 25 - 25.5 Sand, dead corals 25.5 - 26 CM 26 - 27.7 Sand, dead corals 27.7 - 28.8 CM 28.8 - 29.5 Soft coral (Simularia sp) ...read more.

Middle

The life of corals at the first site is not as nutritious as Site 2, as we can see that the percentage cover of sand and dead corals at Site 1 is certainly bigger. This occurrence might have been caused due to a number of occasions; it could be both naturally or could have been affected by anthropogenic activities around the site of the experiment. Site 1 is actually located closer to the shore, while a boat ride was needed to reach the other site. This indicates a number of things that might have been the causes of the low percentage cover of corals in Site 1. As it is located closer to the shore, the corals that grow around that specific area are automatically more open and sensitive to human activities that harmed their existence. Human activities involved daily around the island, such as the ones involving boats, divers, and fishermen on the reef can physically destroy or kill the coral, resulting in reef death. Propellers and anchors can break apart and crush coral, destroying years, if not decades, of coral growth. Poorly informed and negligent divers also harm corals by touching and standing on them. Even if a coral is not visibly harmed, human touch can make them more vulnerable to death and disease. ...read more.

Conclusion

More time might also present better results. As time was very limited, we might have miscounted and misidentified some of the corals along the line transect. REFLECTION This experiment was ended successfully in a way that I now understand the process of Line Intercept Transect, assessing the sessile benthic community of coral reefs and calculating the percentage covers of both living and dead corals. Although I could have obtained better results by being fully prepared, especially in understanding the step-by-step process of method. Asking myself the question: what can go wrong? This could have prevented the careless human errors that have occurred during the experiment. Aside from improvements, I have to say that this experiment have lead me to new understandings, concepts, knowledge, as well as manners and attitudes toward a project. I believe I have shown effort by being proactive throughout the experiment. But most importantly, I learnt a very important lesson regarding the environment, especially understanding the importance of the coral reef, how such ecosystems support a variety of human needs. They are importance for subsistence, fisheries, tourism, shoreline protection, and yield compounds that are important in the development of new medicines. APPENDIX http://www.getahugetank.com/images/Massive_Coral.jpg CM Coral Massive http://2.bp.blogspot.com/ CSM Coral Submassive http://people.hws.edu/mitchell/oz/images/CoralComp5.gif CB Coral Branching http://oceanservice.noaa.gov/education/kits/corals/media/coral03g_480.jpg CE Coral Encrusting http://www.malapascua.net/images/gallery/diving/soft-corals-at-small-beach. ...read more.

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