The effect of egg versus seston quality on hatching success, naupliar metabolism and survival of Calanus finmarchicus in mesocosms dominated by Phaeocystis and diatoms

• Published in: Marine biology 2012-03, Vol.159 (3), p.643-660
• Main Authors: Koski, M., Yebra, L., Dutz, J., Jόnasdόttir, S. H., Vidoudez, C., Jakobsen, H. H., Pohnert, G., Nejstgaard, J. C.
• Format: Article
• Language: English
• Subjects: Algae; Animal and plant ecology; Animal reproduction; Animal, plant and microbial ecology; Aquatic life; Biological and medical sciences; Biomedical and Life Sciences; Calanus finmarchicus; Diatoms; Egg (Biology); Environmental aspects; Females; Food; Freshwater & Marine Ecology; Fundamental and applied biological sciences. Psychology; Hatching; Life Sciences; Lipids; Marine; Marine & Freshwater Sciences; Marine biology; Metabolism; Metabolites; Microbiology; Oceanography; Original Paper; Phaeocystis; Physiological aspects; Plant cytology, morphology, systematics, chorology and evolution; Prymnesiophytes; Sea water ecosystems; Synecology; Thallophyta; Zoology
• ISSN: 0025-3162; 1432-1793
• DOI: 10.1007/s00227-011-1843-z

We studied the effect of a developing Skeletonema marinoi / Phaeocystis spp. bloom on Calanus finmarchicus hatching success, early naupliar survival and metabolism. Our focus was (1) on the development of reproductive rates during a bloom initiation, peak and decline in relation to the production of potentially toxic algal metabolites and (2) on the proportional importance of female nutrition versus naupliar food environment for the production of viable nauplii. Despite polyunsaturated aldehyde (PUA) production by both S. marinoi and Phaeocystis sp., we did not observe any harmful effects on hatching success or naupliar survival and condition in any stages of the short-term (