Comatulids (Crinoidea, Comatulida) chemically defend against coral fish by themselves, without assistance from their symbionts

Kasumyan, A.; Isaeva, O.; Dgebuadze, P.; Mekhova, E.; Thi Kieu, O.L.; Britayev, T.

Авторы: Kasumyan A., Isaeva O., Dgebuadze P., Mekhova E., Thi Kieu Oanh Le, Britayev T.
Журнал: Scientific reports
Том: 10
Номер: 6150
Год издания: 2020
Издательство: Nature Publishing Group
Местоположение издательства: United Kingdom
DOI: 10.1038/s41598-020-63140-2
Аннотация: whether the symbionts are involved in the chemical protection of their hosts, the palatability of ten species of comatulids and six species of their symbionts was evaluated. Taste attractiveness was determined by offering agar pellets flavoured with extracts of comatulids and their symbionts for four coral reef fish species. Five species of symbiont were highly palatable, and one was indifferent to the taste. Almost all comatulids were distasteful, while their aversiveness was different for different fish. These findings indicate that comatulids chemically defend themselves without assistance from symbionts, and the taste deterrents are not universal and can only be effective against particular predators. The presence of tasteful symbionts reduces the security of their hosts by provoking attacks of predators and may impact on the individual and population fitness of comatulids. However, the chemical protection of comatulids is useful for symbionts and undoubtedly increases their survival. Obtained results allows the relationship between comatulids and their symbionts considered commensalism. Most likely, similar relationships can be established in many other associations, where symbionts inhabit chemically defended coral reef invertebrates.
Добавил в систему: Касумян Александр Ованесович

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Comatulids (Crinoidea, Comatulida) chemically defend against coral fish by themselves, without assistance from their symbiontsстатья

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