Discovery and dynamics of a cryptic marine copepod-parasite interaction
- UNCW Author/Contributor (non-UNCW co-authors, if there are any, appear on document)
- Christian Briseño-Avena (Creator)
- Institution
- The University of North Carolina Wilmington (UNCW )
- Web Site: http://library.uncw.edu/
Abstract: Parasitism is increasingly recognized as a critical element of ecosystem dynamics butremains understudied due to observational limitations, especially in rapidly fluctuating marine plankton populations. We combined 3 new techniques — in situ imaging microscopy, automatedclassification, and empirical dynamic modeling — to quantify interactions between Oithona spp.and the rhizarian parasite Paradinium spp. at hourly resolution for over 1 yr in the Southern California Bight. We investigate the time scales, host population effects, and potential environmental drivers of infection. Our study suggests that Paradinium spp. is consistently present in the local copepod population at low levels throughout the year and that the parasite exerts control on the host population on a 22-23 d lag — a delay consistent with known Oithona spp. generation times. The interaction strength was pronounced at higher temperatures, suggesting that Paradinium spp. will have a significant role in local ecosystem dynamics as surface ocean temperatures rise.
Discovery and dynamics of a cryptic marine copepod-parasite interaction
PDF (Portable Document Format)
682 KB
Created on 6/16/2022
Views: 707
Additional Information
- Publication
- https://doi.org/10.3354/meps14072
- Language: English
- Date: 2022
- Keywords
- Parasitic interaction, Population control, Marine copepods, Oithona, Rhizarian, Paradinium, In situ microscopy, Time series