Copepod oxygen consumption along a salinity gradient

Soulié, Tanguy; Engström-Öst, Jonna; Glippa, Olivier

Document type :

Article dans une revue scientifique: Article original

DOI :

10.1080/10236244.2022.2104720

Title :

Copepod oxygen consumption along a salinity gradient

Author(s) :

Soulié, Tanguy [Auteur]
MARine Biodiversity Exploitation and Conservation - MARBEC [UMR MARBEC]
Engström-Öst, Jonna [Auteur]
Glippa, Olivier [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]

Journal title :

Marine and Freshwater Behaviour and Physiology

Pages :

1-13

Publisher :

Taylor & Francis

Publication date :

2022

ISSN :

1023-6244

English keyword(s) :

Oxygen consumption
coastal zone
salinity
zooplankton
climate change

HAL domain(s) :

Sciences du Vivant [q-bio]

English abstract : [en]

Climate change-induced salinity decrease is currently occurring in many estuarine coastal zones, due to increased outflow of freshwater. This freshening can be a problem for brackish-water animals, already living on the ...
Show more >Climate change-induced salinity decrease is currently occurring in many estuarine coastal zones, due to increased outflow of freshwater. This freshening can be a problem for brackish-water animals, already living on the edge of their salinity tolerance. We measured oxygen consumption of common copepod Eurytemora affinis along a natural salinity gradient in the western Gulf of Finland. The salinity varied between 3 in the inner bay and 7 in the offshore area along the gradient, pH varied between 7.05 and 7.86. Our results show that respiration increased with decreasing salinity, as expected for a genus more commonly found in estuarine/saline waters, even if it has colonised brackish waters. Our results suggest that future decreasing salinity could enhance respiration rate, and so energy requirements, of large-bodied zooplankton in estuarine areas such as the Baltic Sea and could lead to lower food quality availability for coastal planktivorous fish, such as herring and sprat.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

Laboratoire d'Océanologie et de Géosciences (LOG) - UMR 8187

Source :

Harvested from HAL

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