Effects of microalgae as diets on the survival, development and fecundity of a pelagic cyclopoid copepod Apocyclops borneoensis

Wang, Guizhong, Xu, Jie, Jia, Qilong, Zeng, Chaoshu, Wu, Lisheng, and Wu, Dingxun (2017) Effects of microalgae as diets on the survival, development and fecundity of a pelagic cyclopoid copepod Apocyclops borneoensis. Journal of the Marine Biological Association of the United Kingdom, 97 (6). pp. 1251-1257.

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It has been proposed that the feeding habit of cyclopoids is different from that of calanoid copepods in that they feed mainly on microalgae during early development but become carnivorous later. However, a different view also exists, believing that microalgae are the prime food for some cyclopoid copepods. In the present study, microalgae from various taxonomic groups, including a dinoflagellate (Prorocentrum micans), three diatoms (Chaetoceros muelleri, Skeletonema costatum and Nitzschia closterium f. minutissima), and a prymnesiod (Isochrysis galbana), were offered at different concentrations to the cyclopoid copepod, Apocyclops borneoensis, with survival, development and reproduction of the copepod closely monitored. The results showed that A. borneoensis is capable of utilizing any of the microalgae species tested for development and reproduction, but significant differences in survival, development rates of both nauplii and copepodites, and fecundity were detected among species. The results also showed that within a same algal species, food concentration also significantly affected various biological parameters measured. Overall, C. muelleri and I. galbana were the better diets for A. borneoensis and their optimal food concentration ranged from 8.50 to 17.00 mg C ml21. The optimal food concentration of P. micans was also found to be 8.50–17.00 mg C ml21, however for the other two algae, S. costatum and N. closterium f. minutissima, it was lower at 1.70–8.50 mg Cml21. The present study provides novel information on the feeding habit of A. borneoensis and the effects of both quality and quantity of microalgae diets on a range of biological parameters are described.

Item ID: 52240
Item Type: Article (Research - C1)
ISSN: 1469-7769
Keywords: microalgal diets, cyclopoid copepod, Apocyclops borneoensis, survival, development, fecundity
Funders: National Science Foundation of China (NSFC)
Projects and Grants: NSFC grant 41276132
Date Deposited: 05 Feb 2018 01:20
FoR Codes: 30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3005 Fisheries sciences > 300501 Aquaculture @ 20%
31 BIOLOGICAL SCIENCES > 3103 Ecology > 310305 Marine and estuarine ecology (incl. marine ichthyology) @ 80%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830199 Fisheries - Aquaculture not elsewhere classified @ 20%
97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 80%
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