Predator Suites and Flabellinid Nudibranch Nematocyst Complements in the Gulf of Maine.

Rubicon Research Repository/Manakin Repository

Predator Suites and Flabellinid Nudibranch Nematocyst Complements in the Gulf of Maine.

Show simple item record


dc.contributor.author Frick, K
dc.date.accessioned 2007-07-30T20:04:17Z
dc.date.available 2007-07-30T20:04:17Z
dc.date.issued 2003
dc.identifier.citation K Frick. Predator Suites and Flabellinid Nudibranch Nematocyst Complements in the Gulf of Maine. In: SF Norton (ed). 2003. Diving for Science...2003. Proceedings of the 22nd Annual Scientific Diving Symposium, American Academy of Underwater Sciences. Greenville, North Carolina. en
dc.identifier.uri http://archive.rubicon-foundation.org/4744
dc.description American Academy of Underwater Sciences (http://www.aaus.org/) en
dc.description.abstract Nematocysts are a primary defense mechanism for combating predation in aeolid nudibranchs, and predator presence influences nematocyst uptake through nudibranch response to chemical cues from predators. However, the degree of predation pressure on individual nudibranchs within a population is not uniform across a species range, particularly for those that are widely distributed. Nematocyst selection in a given nudibranch species may differ latitudinally or based on predator suites at different collection locations. Given the geographic ranges of predatory species in the area and extreme changes in water temperature, nudibranch species are potentially exposed to different predator suites between northern and southern regions even within the relatively small Gulf of Maine. I used subtidal band transacts to assess predator suites in different regions within the Gulf of Maine and collected aeolid nudibranchs of the genus FlabeWna from these sites to analyze nematocyst types conserved by the nudibranchs. Nudibranchs analyzed include both generalist and specialist predators with varying degrees of ability to respond to predator cues due to variation in the nematocysts available in their cnidarian prey sources. Predator suites between northern and southern regions were statistically independent. with differences in number. density, and presence of specific predators. Some collected nudibranch species showed correlative differences in their nematocyst complements. The degree of response depended on the feeding specificity of the nudibranch and associated limitations in available nematocysts. Nematocyst selection may relate to an inducible defense in response to the presence of predators. en
dc.format.extent 316906 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher American Academy of Underwater Sciences (AAUS) en
dc.subject Scientific Diving en
dc.subject nudibranch en
dc.subject nematocyst en
dc.subject defense en
dc.title Predator Suites and Flabellinid Nudibranch Nematocyst Complements in the Gulf of Maine. en
dc.type Article en

Files in this item

Files Size Format View
AAUS_2003_11.pdf 309.4Kb PDF View/Open

This item appears in the following Collection(s)

Show simple item record

Browse

My Account