Pelagic microalgae as suitable diets for the benthic harpacticoid copepod Tigriopus japonicus

Wang, Guizhong, Xu, Jie, Zeng, Chaoshu, Jia, Qilong, Wu, Lisheng, and Li, Shaojing (2015) Pelagic microalgae as suitable diets for the benthic harpacticoid copepod Tigriopus japonicus. Hydrobiologia, 762 (1). pp. 81-88.

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It has been reported that certain microalgae have the ability to cause various negative effects on pelagic calanoid copepods. However, whether such pelagic microalgae have similar negative effects on benthic copepods has had little attention. The results of the present study indicated that both benthic naupliar and copepodite stages of the harpacticoid copepod Tigriopus japonicus could effectively utilize five species of pelagic microalgae to complete their development. The effects of different concentrations of various microalgae species on naupliar survival were significant; however, no significant effects on copepodite survival were detected. When fed with two diatoms Chaetoceros muelleri and Skeletonema costatum as well as the dinoflagellate Prorocentrum micans and the chrysophyte Isochrysis galbana at high concentrations (≥8.50 μgC ml⁻¹), the survival of both naupliar and copepodite stages of T. japonicus was more than 90%. However, when the diatom Nitzschia closterium f. minutissima was fed at the high concentrations of 8.50 μgC ml⁻¹, the naupliar survival was 76.3 ± 3.2 %. Interestingly, the negative effects of N. closterium f. minutissima as a diet in the naupliar stage did not affect the survival of the copepodites, which may be explained by increased mobility of copepodites.

Item ID: 43056
Item Type: Article (Research - C1)
ISSN: 1573-5117
Keywords: concentration, harpacticoid copepod, nauplii and copepodites, pelagic microalgae, survival, Tigriopus japonicus
Funders: National Science Foundation of China (NSFC)
Projects and Grants: NSFC 41276132
Date Deposited: 03 Mar 2016 22:24
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070401 Aquaculture @ 50%
06 BIOLOGICAL SCIENCES > 0608 Zoology > 060803 Animal Developmental and Reproductive Biology @ 50%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830101 Aquaculture Crustaceans (excl. Rock Lobster and Prawns) @ 50%
96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 50%
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