Paradigm Lost: Ocean Acidification Will Overturn the Concept of Larval-Fish Biophysical Dispersal
Most marine ecologists have in the past 25 years changed from supporting a passive-dispersal paradigm for larval marine fishes to supporting a biophysical-dispersal paradigm wherein the behaviour of larvae plays a central role. Research shows larvae of demersal perciform fishes have considerable swi...
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ftdoajarticles:oai:doaj.org/article:dde5f82feca148dfbf47c99aa19a5fca 2023-05-15T17:52:01+02:00 Paradigm Lost: Ocean Acidification Will Overturn the Concept of Larval-Fish Biophysical Dispersal Jeffrey M. Leis 2018-02-01T00:00:00Z https://doi.org/10.3389/fmars.2018.00047 https://doaj.org/article/dde5f82feca148dfbf47c99aa19a5fca EN eng Frontiers Media S.A. http://journal.frontiersin.org/article/10.3389/fmars.2018.00047/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2018.00047 https://doaj.org/article/dde5f82feca148dfbf47c99aa19a5fca Frontiers in Marine Science, Vol 5 (2018) fish larva dispersal sensory ability CO2 acidification Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2018 ftdoajarticles https://doi.org/10.3389/fmars.2018.00047 2022-12-30T21:07:04Z Most marine ecologists have in the past 25 years changed from supporting a passive-dispersal paradigm for larval marine fishes to supporting a biophysical-dispersal paradigm wherein the behaviour of larvae plays a central role. Research shows larvae of demersal perciform fishes have considerable swimming and orientation abilities over a major portion of their pelagic larval duration. These abilities depend on sensory function, and some recent research has indicated anthropogenic acidification of the oceans will by the end of the century result in sensory dysfunction. This could strongly alter the ability of fish larvae to orientate in the pelagic environment, to locate suitable settlement habitat, to bet-hedge, and to colonize new locations. This paper evaluates the available publications on the effects of acidification on senses and behaviours relevant to dispersal of fish early life-history stages. A large majority of studies tested CO2 values predicted for the middle to end of the century. Larvae of fourteen families—all but two perciform—were studied. However, half of studies used Damselfishes (Pomacentridae), and except for swimming, most studies used settlement-stage larvae or later stages. In spite of these taxonomic and ontogenetic restrictions, all but two studies on sensory function (chemosensation, hearing, vision, detection of estuarine cues) found deleterious effects from acidification. The four studies on lateralization and settlement timing all found deleterious effects from acidification. No clear effect of acidification on swimming ability was found. If fish larvae cannot orientate due to sensory dysfunction, their dispersal will, in effect, conform to the passive dispersal paradigm. Modelling incorporating larval behaviour derived from empirical studies indicates that relative to active larvae, passive larvae will have less self-recruitment, higher median and mean dispersal distances, and lower settlement rates: further, bet hedging and colonization of new locations will decrease. The ... Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles Frontiers in Marine Science 5 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
fish larva dispersal sensory ability CO2 acidification Science Q General. Including nature conservation geographical distribution QH1-199.5 |
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fish larva dispersal sensory ability CO2 acidification Science Q General. Including nature conservation geographical distribution QH1-199.5 Jeffrey M. Leis Paradigm Lost: Ocean Acidification Will Overturn the Concept of Larval-Fish Biophysical Dispersal |
topic_facet |
fish larva dispersal sensory ability CO2 acidification Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Most marine ecologists have in the past 25 years changed from supporting a passive-dispersal paradigm for larval marine fishes to supporting a biophysical-dispersal paradigm wherein the behaviour of larvae plays a central role. Research shows larvae of demersal perciform fishes have considerable swimming and orientation abilities over a major portion of their pelagic larval duration. These abilities depend on sensory function, and some recent research has indicated anthropogenic acidification of the oceans will by the end of the century result in sensory dysfunction. This could strongly alter the ability of fish larvae to orientate in the pelagic environment, to locate suitable settlement habitat, to bet-hedge, and to colonize new locations. This paper evaluates the available publications on the effects of acidification on senses and behaviours relevant to dispersal of fish early life-history stages. A large majority of studies tested CO2 values predicted for the middle to end of the century. Larvae of fourteen families—all but two perciform—were studied. However, half of studies used Damselfishes (Pomacentridae), and except for swimming, most studies used settlement-stage larvae or later stages. In spite of these taxonomic and ontogenetic restrictions, all but two studies on sensory function (chemosensation, hearing, vision, detection of estuarine cues) found deleterious effects from acidification. The four studies on lateralization and settlement timing all found deleterious effects from acidification. No clear effect of acidification on swimming ability was found. If fish larvae cannot orientate due to sensory dysfunction, their dispersal will, in effect, conform to the passive dispersal paradigm. Modelling incorporating larval behaviour derived from empirical studies indicates that relative to active larvae, passive larvae will have less self-recruitment, higher median and mean dispersal distances, and lower settlement rates: further, bet hedging and colonization of new locations will decrease. The ... |
format |
Article in Journal/Newspaper |
author |
Jeffrey M. Leis |
author_facet |
Jeffrey M. Leis |
author_sort |
Jeffrey M. Leis |
title |
Paradigm Lost: Ocean Acidification Will Overturn the Concept of Larval-Fish Biophysical Dispersal |
title_short |
Paradigm Lost: Ocean Acidification Will Overturn the Concept of Larval-Fish Biophysical Dispersal |
title_full |
Paradigm Lost: Ocean Acidification Will Overturn the Concept of Larval-Fish Biophysical Dispersal |
title_fullStr |
Paradigm Lost: Ocean Acidification Will Overturn the Concept of Larval-Fish Biophysical Dispersal |
title_full_unstemmed |
Paradigm Lost: Ocean Acidification Will Overturn the Concept of Larval-Fish Biophysical Dispersal |
title_sort |
paradigm lost: ocean acidification will overturn the concept of larval-fish biophysical dispersal |
publisher |
Frontiers Media S.A. |
publishDate |
2018 |
url |
https://doi.org/10.3389/fmars.2018.00047 https://doaj.org/article/dde5f82feca148dfbf47c99aa19a5fca |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Frontiers in Marine Science, Vol 5 (2018) |
op_relation |
http://journal.frontiersin.org/article/10.3389/fmars.2018.00047/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2018.00047 https://doaj.org/article/dde5f82feca148dfbf47c99aa19a5fca |
op_doi |
https://doi.org/10.3389/fmars.2018.00047 |
container_title |
Frontiers in Marine Science |
container_volume |
5 |
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1766159331402711040 |