Spatial subsidies drive sweet spots of tropical marine biomass production.

Spatial subsidies increase local productivity and boost consumer abundance beyond the limits imposed by local resources. In marine ecosystems, deeper water and open ocean subsidies promote animal aggregations and enhance biomass that is critical for human harvesting. However, the scale of this pheno...

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Autores principales: Renato A Morais, Alexandre C Siqueira, Patrick F Smallhorn-West, David R Bellwood
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Lenguaje:EN
Publicado: Public Library of Science (PLoS) 2021
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Acceso en línea:https://doaj.org/article/066832c0cf284489bbd5563bd4d834d6
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spelling oai:doaj.org-article:066832c0cf284489bbd5563bd4d834d62021-12-02T19:54:18ZSpatial subsidies drive sweet spots of tropical marine biomass production.1544-91731545-788510.1371/journal.pbio.3001435https://doaj.org/article/066832c0cf284489bbd5563bd4d834d62021-11-01T00:00:00Zhttps://doi.org/10.1371/journal.pbio.3001435https://doaj.org/toc/1544-9173https://doaj.org/toc/1545-7885Spatial subsidies increase local productivity and boost consumer abundance beyond the limits imposed by local resources. In marine ecosystems, deeper water and open ocean subsidies promote animal aggregations and enhance biomass that is critical for human harvesting. However, the scale of this phenomenon in tropical marine systems remains unknown. Here, we integrate a detailed assessment of biomass production in 3 key locations, spanning a major biodiversity and abundance gradient, with an ocean-scale dataset of fish counts to predict the extent and magnitude of plankton subsidies to fishes on coral reefs. We show that planktivorous fish-mediated spatial subsidies are widespread across the Indian and Pacific oceans and drive local spikes in biomass production that can lead to extreme productivity, up to 30 kg ha-1 day-1. Plankton subsidies form the basis of productivity "sweet spots" where planktivores provide more than 50% of the total fish production, more than all other trophic groups combined. These sweet spots operate at regional, site, and smaller local scales. By harvesting oceanic productivity, planktivores bypass spatial constraints imposed by local primary productivity, creating "oases" of tropical fish biomass that are accessible to humans.Renato A MoraisAlexandre C SiqueiraPatrick F Smallhorn-WestDavid R BellwoodPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Biology, Vol 19, Iss 11, p e3001435 (2021)
institution DOAJ
collection DOAJ
language EN
topic Biology (General)
QH301-705.5
spellingShingle Biology (General)
QH301-705.5
Renato A Morais
Alexandre C Siqueira
Patrick F Smallhorn-West
David R Bellwood
Spatial subsidies drive sweet spots of tropical marine biomass production.
description Spatial subsidies increase local productivity and boost consumer abundance beyond the limits imposed by local resources. In marine ecosystems, deeper water and open ocean subsidies promote animal aggregations and enhance biomass that is critical for human harvesting. However, the scale of this phenomenon in tropical marine systems remains unknown. Here, we integrate a detailed assessment of biomass production in 3 key locations, spanning a major biodiversity and abundance gradient, with an ocean-scale dataset of fish counts to predict the extent and magnitude of plankton subsidies to fishes on coral reefs. We show that planktivorous fish-mediated spatial subsidies are widespread across the Indian and Pacific oceans and drive local spikes in biomass production that can lead to extreme productivity, up to 30 kg ha-1 day-1. Plankton subsidies form the basis of productivity "sweet spots" where planktivores provide more than 50% of the total fish production, more than all other trophic groups combined. These sweet spots operate at regional, site, and smaller local scales. By harvesting oceanic productivity, planktivores bypass spatial constraints imposed by local primary productivity, creating "oases" of tropical fish biomass that are accessible to humans.
format article
author Renato A Morais
Alexandre C Siqueira
Patrick F Smallhorn-West
David R Bellwood
author_facet Renato A Morais
Alexandre C Siqueira
Patrick F Smallhorn-West
David R Bellwood
author_sort Renato A Morais
title Spatial subsidies drive sweet spots of tropical marine biomass production.
title_short Spatial subsidies drive sweet spots of tropical marine biomass production.
title_full Spatial subsidies drive sweet spots of tropical marine biomass production.
title_fullStr Spatial subsidies drive sweet spots of tropical marine biomass production.
title_full_unstemmed Spatial subsidies drive sweet spots of tropical marine biomass production.
title_sort spatial subsidies drive sweet spots of tropical marine biomass production.
publisher Public Library of Science (PLoS)
publishDate 2021
url https://doaj.org/article/066832c0cf284489bbd5563bd4d834d6
work_keys_str_mv AT renatoamorais spatialsubsidiesdrivesweetspotsoftropicalmarinebiomassproduction
AT alexandrecsiqueira spatialsubsidiesdrivesweetspotsoftropicalmarinebiomassproduction
AT patrickfsmallhornwest spatialsubsidiesdrivesweetspotsoftropicalmarinebiomassproduction
AT davidrbellwood spatialsubsidiesdrivesweetspotsoftropicalmarinebiomassproduction
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