Dichromatic African catfish cariasgariepinus larvae and juveniles have colour vision but lose it in low light intesity at 1 lux

• Main Author: Patt, Kar Hoo
• Format: Academic Exercise
• Language: English
• Published: 2014
• Subjects: SH Aquaculture. Fisheries. Angling
• Online Access: https://eprints.ums.edu.my/id/eprint/17647/1/Dichromatic%20African%20catfish%20cariasgariepinus%20larvae%20and%20juveniles%20have%20colour%20vision%20but%20lo.pdf; https://eprints.ums.edu.my/id/eprint/17647/

Diversity and abundance of marine invertebrates are crudal component in making sure the health of reef ecosystem. Nevertheless, some of these marine invertebrates pose some dangers to humans as well as the coral community. Besides that, some invertebrates are also enjoyed as delicades for consumption. Research of diversity and abundance of marine invertebrates induding hazardous and edible spedes were conducted at Sepangar Island involving four locations and three depths for each location. Data was collected using invertebrate belt transect with length of 100 m and width of 5 m. A total of 19 species of marine invertebrate were identified throughout the study. Highest diversity was obtained at Site 4 (15 spedes) and highest abundance of marine invertebrates was obtained at Site 3 (66 ind/1OOO m2 ). Depth of 5 m and 10 m had the same diversity (12 spedes); however abundance of marine invertebrates was the highest at 5 m (62 ind/l000 m2 ). Out of 19 species, three species were dassified as hazardous and seven species were considered edible. Moreover, abundance of hazardous and edible marine invertebrates was highest at Site 3 and at 5 m of depth. Statistical analysis showed that depths influenced the diversity and abundance of marine invertebrates induding hazardous and edible species, while locations did not affect the diversity and abundance at all.