The effect of feeding artemia on the growth performance of scleractinian coral Pocillopora damicornis (Linnaeus, 1758) in captivity | |
| Author | Wiracha Charoendee |
| Call Number | AIT Thesis no.AQ-18-02 |
| Subject(s) | cauliflower coral Coral reef ecology Corals |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Aquaculture and Aquatic Resources Management, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AQ-18-02 |
| Abstract | The cauliflower coral, Pocillopora damicornis is an important scleractinian coral in Thailand. The present study compared the simultaneous effects of two factors, such as two levels of feeding densities (2,000 and 4,000 Artemia salina nauplii/l-1) and three levels of feeding frequencies (2, 3 and 4 times per week) on the growth rate, number of polyps, skeletal density, calcification rate and chlorophyll-a concentration of cauliflower coral reared in laboratory conditions for 84 days at the Marine Hatchery located at Bangsaen Institute of Marine Science (BIMS), Burapha University, Chon Buri Province, Thailand. There were a total of 7 treatments (T1 = Unfed ; T2 = Feeding with A. salina at 2,000 naplii/l-1 2 times weekly; T3 = Feeding with A. salina at 4,000 naplii/l-1 2 times weekly; T4 = Feeding with A. salina at 2,000 naplii/l-1 3 times weekly; T5 = Feeding with A. salina at 4,000 naplii/l-1 3 times weekly; T6 = Feeding with A. salina at 2,000 naplii/l-1 4 times weekly; T7 = Feeding with A. salina at 4,000 naplii/l-1 4 times weekly). There was no significant difference (P>0.05) in final and total extension rate among treatments. The final linear extension rate in T5 was significantly lower than other treatments. The number of polyps during the experimental period ranged from 108 to 160.33 polyps. There were no significantly different (P>0.05) among treatments at the initial period, 4th and 8th week. Nevertheless, feeding frequency was found to significantly affect (P<0.05) the number of polyps in T3 and T2 at the end of the experiment. No significant difference (P>0.05) was found in final weight and total weight gain in skeletal density among treatments. However, T2 showed comparatively the highest weight than the other treatments. The density of feeding of 1st week, 4th week and 12th week had no significant effect (P>0.05) on calcification rate while the feeding frequency had significant effect (P<0.05) on calcification rate during 4th week and 8th week. Moreover, during 8th week, significant (P<0.05) interaction effect among the feeding density and feeding frequency on the calcification rates and the highest calcification rate was found in T1. Feeding densities and feeding frequencies had no significant effect (P>0.05) on chlorophyll-a concentration and no significant difference of it was found among treatments. Moreover, there was no interaction between feeding density and frequency. In this present study, the effects of both factors on the growth rate were not clearly revealed. However, this study will give the basic understanding of the impact of major factors on the cauliflower coral. In addition, it can be applied and adapted to maintain the coral growth, and can make the advantages from the outcome of this research. |
| Year | 2018 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AQ-18-02 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Aquaculture and Aquatic Resources Management (AQ) |
| Chairperson(s) | Salin, K.R.; |
| Examination Committee(s) | Bhujel, Ram C.;Soni, Peeyush; |
| Scholarship Donor(s) | The Royal Thai Government (RTG) AIT Fellowship ; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2018 |