Intoxicated copepods: ingesting toxic phytoplankton leads to risky behaviour
| Autor: | Jeannette Yen, Aakanksha Angra, Rachel S. Lasley-Rasher, Kathryn Nagel |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Food Chain Harmful Algal Bloom Neurotoxins 010603 evolutionary biology 01 natural sciences Algal bloom Models Biological General Biochemistry Genetics and Molecular Biology Copepoda Food chain Dinoflagellida Phytoplankton Animals Ecosystem Swimming Research Articles General Environmental Science General Immunology and Microbiology biology Behavior Animal Ecology 010604 marine biology & hydrobiology fungi Temora longicornis General Medicine biology.organism_classification Alexandrium fundyense Host-Pathogen Interactions General Agricultural and Biological Sciences Bloom human activities |
| Zdroj: | Proceedings. Biological sciences. 283(1829) |
| ISSN: | 1471-2954 |
| Popis: | Understanding interactions between harmful algal bloom (HAB) species and their grazers is essential for determining mechanisms of bloom proliferation and termination. We exposed the common calanoid copepod,Temora longicornisto the HAB speciesAlexandrium fundyenseand examined effects on copepod survival, ingestion, egg production and swimming behaviour.A. fundyensewas readily ingested byT. longicornisand significantly altered copepod swimming behaviour without affecting copepod survival or fitness.A. fundyensecausedT. longicornisto increase their swimming speed, and the straightness of their path long after the copepods had been removed from theA. fundyensetreatment. Models suggest that these changes could lead to a 25–56% increase in encounter frequency between copepods and their predators. This work highlights the need to determine how ingesting HAB species alters grazer behaviour as this can have significant impacts on the fate of HAB toxins in marine systems. |
| Databáze: | OpenAIRE |
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