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Type: Journal article
Title: Lost at sea: ocean acidification undermines larval fish orientation via altered hearing and marine soundscape modification
Author: Rossi, T.
Nagelkerken, I.
Pistevos, J.
Connell, S.
Citation: Biology Letters, 2016; 12(1):1-4
Publisher: Royal Society
Issue Date: 2016
ISSN: 1744-9561
Statement of
Tullio Rossi, Ivan Nagelkerken, Jennifer C.A. Pistevos and Sean D. Connell
Abstract: The dispersal of larvae and their settlement to suitable habitat is fundamental to the replenishment of marine populations and the communities in which they live. Sound plays an important role in this process because for larvae of various species, it acts as an orientational cue towards suitable settlement habitat. Because marine sounds are largely of biological origin, they not only carry information about the location of potential habitat, but also information about the quality of habitat. While ocean acidification is known to affect a wide range of marine organisms and processes, its effect on marine soundscapes and its reception by navigating oceanic larvae remains unknown. Here, we show that ocean acidification causes a switch in role of present-day soundscapes from attractor to repellent in the auditory preferences in a temperate larval fish. Using natural CO₂ vents as analogues of future ocean conditions, we further reveal that ocean acidification can impact marine soundscapes by profoundly diminishing their biological sound production. An altered soundscape poorer in biological cues indirectly penalizes oceanic larvae at settlement stage because both control and CO₂-treated fish larvae showed lack of any response to such future soundscapes. These indirect and direct effects of ocean acidification put at risk the complex processes of larval dispersal and settlement.
Keywords: Larval dispersal; population replenishment; settlement; sound; snapping shrimps; mulloway
Rights: © 2016 The Author(s) Published by the Royal Society. All rights reserved.
RMID: 0030041486
DOI: 10.1098/rsbl.2015.0937
Grant ID:
Appears in Collections:Ecology, Evolution and Landscape Science publications

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