Behaviour and mortality of benthic crustaceans in response to experimentally induced hypoxia and anoxia in situ

Autor(en)

Alexandra Haselmair, Michael Stachowitsch, Martin Zuschin, Bettina Riedel

Abstrakt

Crustaceans are sensitive to hypoxia and are therefore useful indicator organisms for oxygen depletions. We used the experimental anoxia generating unit in the northern Adriatic Sea to artificially induce and document hypoxia and anoxia on a small scale (0.25 m2 per deployment). Behavioural responses and mortalities were documented for 9 crustacean species typical for the sublittoral soft bottom of the gulf of Trieste. All species showed a similar succession of atypical responses, albeit at different thresholds. The first reaction to declining dissolved oxygen (DO) was avoidance by climbing to more oxygenated (higher) positions. The animals left their shelters, altered their activity patterns, and exposed themselves to a higher risk of predation at mild hypoxia (2 to 1 ml ....

Organisation(en)

Institut für Paläontologie

Journal

Marine Ecology Progress Series

Band

414

Seiten

195-208

Anzahl der Seiten

14

ISSN

0171-8630

DOI

https://doi.org/10.3354/meps08657

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

105118 Paläontologie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/dd618e2e-5fbb-4145-9999-c7ac003deafa