Evidence for long-term seamount-induced chlorophyll enhancements

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

41 Downloads (Pure)

Abstract

Seamounts are ubiquitous global features often characterized by biological hotspots of diversity, biomass, and abundance, though the mechanisms responsible are poorly understood. One controversial explanation suggests seamount-induced chlorophyll enhancements (SICE) subsidize seamount ecosystems. Using a decade of satellite chlorophyll data, we report substantial long-term chlorophyll enhancements around 17% of Pacific seamounts and 45% of shallow (< 100 m) seamounts, with the highest probability of detection at shallow, low-latitude seamounts. SICE is shown to enhance chlorophyll concentrations by up to 56% relative to oceanic conditions, and SICE seamounts have two-fold higher fisheries catch relative to non-enhancing seamounts. Therefore, seamount-induced bottom-up trophic subsidies are not rare, occurring most often at shallow, heavily exploited seamounts, suggesting an important subset of seamounts experience fundamentally different trophic dynamics than previously thought.

OriginalsprogEngelsk
Artikelnummer12729
TidsskriftScientific Reports
Vol/bind10
Nummer1
Antal sider10
ISSN2045-2322
DOI
StatusUdgivet - 2020

Fingeraftryk

Dyk ned i forskningsemnerne om 'Evidence for long-term seamount-induced chlorophyll enhancements'. Sammen danner de et unikt fingeraftryk.

Citationsformater