Global patterns in marine predatory fish

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Abstract

Large teleost (bony) fish are a dominant group of predators in the oceans and constitute a major source of food and livelihood for humans. These species differ markedly in morphology and feeding habits across oceanic regions; large pelagic species such as tunas and billfish typically occur in the tropics, whereas demersal species of gadoids and flatfish dominate boreal and temperate regions. Despite their importance for fisheries and the structuring of marine ecosystems, the underlying factors determining the global distribution and productivity of these two groups of teleost predators are poorly known. Here, we show how latitudinal differences in predatory fish can essentially be explained by the inflow of energy at the base of the pelagic and benthic food chain. A low productive benthic energy pathway favours large pelagic species, whereas equal productivities support large demersal generalists that outcompete the pelagic specialists. Our findings demonstrate the vulnerability of large teleost predators to ecosystem-wide changes in energy flows and hence provide key insight to predict the responses of these important marine resources under global change
Original languageEnglish
JournalNature Ecology & Evolution
Volume2
Issue number1
Pages (from-to)65-70
ISSN2397-334X
DOIs
Publication statusPublished - 2018

Keywords

  • Conservation biology
  • Fisheries
  • Macroecology
  • Marine biology

Cite this

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title = "Global patterns in marine predatory fish",
abstract = "Large teleost (bony) fish are a dominant group of predators in the oceans and constitute a major source of food and livelihood for humans. These species differ markedly in morphology and feeding habits across oceanic regions; large pelagic species such as tunas and billfish typically occur in the tropics, whereas demersal species of gadoids and flatfish dominate boreal and temperate regions. Despite their importance for fisheries and the structuring of marine ecosystems, the underlying factors determining the global distribution and productivity of these two groups of teleost predators are poorly known. Here, we show how latitudinal differences in predatory fish can essentially be explained by the inflow of energy at the base of the pelagic and benthic food chain. A low productive benthic energy pathway favours large pelagic species, whereas equal productivities support large demersal generalists that outcompete the pelagic specialists. Our findings demonstrate the vulnerability of large teleost predators to ecosystem-wide changes in energy flows and hence provide key insight to predict the responses of these important marine resources under global change",
keywords = "Conservation biology, Fisheries, Macroecology, Marine biology",
author = "{van Denderen}, {Pieter Dani{\"e}l} and Martin Lindegren and Brian MacKenzie and Reg Watson and Andersen, {Ken Haste}",
year = "2018",
doi = "10.1038/s41559-017-0388-z",
language = "English",
volume = "2",
pages = "65--70",
journal = "Nature Ecology & Evolution",
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}

Global patterns in marine predatory fish. / van Denderen, Pieter Daniël; Lindegren, Martin ; MacKenzie, Brian; Watson, Reg; Andersen, Ken Haste.

In: Nature Ecology & Evolution, Vol. 2, No. 1, 2018, p. 65-70.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Global patterns in marine predatory fish

AU - van Denderen, Pieter Daniël

AU - Lindegren, Martin

AU - MacKenzie, Brian

AU - Watson, Reg

AU - Andersen, Ken Haste

PY - 2018

Y1 - 2018

N2 - Large teleost (bony) fish are a dominant group of predators in the oceans and constitute a major source of food and livelihood for humans. These species differ markedly in morphology and feeding habits across oceanic regions; large pelagic species such as tunas and billfish typically occur in the tropics, whereas demersal species of gadoids and flatfish dominate boreal and temperate regions. Despite their importance for fisheries and the structuring of marine ecosystems, the underlying factors determining the global distribution and productivity of these two groups of teleost predators are poorly known. Here, we show how latitudinal differences in predatory fish can essentially be explained by the inflow of energy at the base of the pelagic and benthic food chain. A low productive benthic energy pathway favours large pelagic species, whereas equal productivities support large demersal generalists that outcompete the pelagic specialists. Our findings demonstrate the vulnerability of large teleost predators to ecosystem-wide changes in energy flows and hence provide key insight to predict the responses of these important marine resources under global change

AB - Large teleost (bony) fish are a dominant group of predators in the oceans and constitute a major source of food and livelihood for humans. These species differ markedly in morphology and feeding habits across oceanic regions; large pelagic species such as tunas and billfish typically occur in the tropics, whereas demersal species of gadoids and flatfish dominate boreal and temperate regions. Despite their importance for fisheries and the structuring of marine ecosystems, the underlying factors determining the global distribution and productivity of these two groups of teleost predators are poorly known. Here, we show how latitudinal differences in predatory fish can essentially be explained by the inflow of energy at the base of the pelagic and benthic food chain. A low productive benthic energy pathway favours large pelagic species, whereas equal productivities support large demersal generalists that outcompete the pelagic specialists. Our findings demonstrate the vulnerability of large teleost predators to ecosystem-wide changes in energy flows and hence provide key insight to predict the responses of these important marine resources under global change

KW - Conservation biology

KW - Fisheries

KW - Macroecology

KW - Marine biology

U2 - 10.1038/s41559-017-0388-z

DO - 10.1038/s41559-017-0388-z

M3 - Journal article

VL - 2

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EP - 70

JO - Nature Ecology & Evolution

JF - Nature Ecology & Evolution

SN - 2397-334X

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ER -