Ocean acidification disrupts the orientation of postlarval Caribbean spiny lobsters
Autor: | Angelo Jason Spadaro, Casey B. Butler, David Lankes, Heather N. Page, Megan Considine, Philip M. Gravinese, Clay Hewett, Samantha Fisher |
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Rok vydání: | 2020 |
Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences Behavioural ecology Oceans and Seas lcsh:Medicine 01 natural sciences Article Orientation Animals Ecosystem Palinuridae lcsh:Science 0105 earth and related environmental sciences Marine biology Multidisciplinary biology 010604 marine biology & hydrobiology fungi lcsh:R Laurencia Ocean acidification Hydrogen-Ion Concentration biology.organism_classification Crustacean Fishery Caribbean Region Larva lcsh:Q Seawater Cues Panulirus argus Climate-change impacts Bay Spiny lobster |
Zdroj: | Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020) Scientific Reports |
ISSN: | 2045-2322 |
Popis: | Anthropogenic inputs into coastal ecosystems are causing more frequent environmental fluctuations and reducing seawater pH. One such ecosystem is Florida Bay, an important nursery for the Caribbean spiny lobster, Panulirus argus. Although adult crustaceans are often resilient to reduced seawater pH, earlier ontogenetic stages can be physiologically limited in their tolerance to ocean acidification on shorter time scales. We used a Y-maze chamber to test whether reduced-pH seawater altered the orientation of spiny lobster pueruli toward chemical cues produced by Laurencia spp. macroalgae, a known settlement cue for the species. We tested the hypothesis that pueruli conditioned in reduced-pH seawater would be less responsive to Laurencia spp. chemical cues than pueruli in ambient-pH seawater by comparing the proportion of individuals that moved to the cue side of the chamber with the proportion that moved to the side with no cue. We also recorded the amount of time (sec) before a response was observed. Pueruli conditioned in reduced-pH seawater were less responsive and failed to select the Laurencia cue. Our results suggest that episodic acidification of coastal waters might limit the ability of pueruli to locate settlement habitats, increasing postsettlement mortality. |
Databáze: | OpenAIRE |
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