Lost at sea: ocean acidification undermines larval fish orientation via altered hearing and marine soundscape modification

Biology Letters
Tullio RossiSean 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 suc...Continue Reading

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Citations

Jan 27, 2017·PloS One·Joana M CastroAna M Faria
May 27, 2017·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Andrew J Esbaugh
Jan 10, 2020·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·David MazuraisJosé-Luis Zambonino-Infante
Dec 10, 2016·Conservation Physiology·Lauren E NadlerPhilip L Munday
Jun 6, 2020·Frontiers in Bioengineering and Biotechnology·David BierbachJens Krause
Mar 11, 2017·Royal Society Open Science·Laura CoquereauLaurent Chauvaud
Dec 25, 2019·Scientific Reports·Shannon J McMahonJennifer M Donelson
Apr 13, 2018·Scientific Reports·Tullio RossiIvan Nagelkerken
Mar 4, 2021·Proceedings. Biological Sciences·C A RadfordD Parsons
Oct 23, 2020·Nature·Philip L MundaySue-Ann Watson
Apr 28, 2019·Marine Environmental Research·Marie VagnerDavid Mazurais
Jun 16, 2021·Ecological Applications : a Publication of the Ecological Society of America·Brittany R WilliamsSean D Connell

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