A temperature-controlled, circular maintenance system for studying growth and development of pelagic tunicates (Salps)

Author:

Müller Svenja J.ORCID,Wessels Wiebke,Driscoll Sara,Pakhomov Evgeny A.,Auerswald Lutz,Michael Katharina,Meyer Bettina

Abstract

AbstractSalps are pelagic tunicates that are able to form large blooms under favorable conditions by alternating between sexual and asexual reproduction. While their role in the regional carbon cycle is receiving attention, our knowledge of their physiology is still limited. This knowledge gap is mainly due to their fragile gelatinous nature, which makes it difficult to capture intact specimens and maintain them in the laboratory. We present here a modified kreisel tank system, that was tested onboard using the Southern Ocean salpSalpa thompsoniand station-based using the Mediterranean speciesSalpa fusiformis. Successful maintenance over days to weeks allowed us to obtain comparable relative growth and developmental rates asin situ, and provided insight into their potential life cycle strategies. By providing a starting point for successful maintenance, we hope to stimulate future experimental research on this understudied taxonomic group.

Publisher

Cold Spring Harbor Laboratory

Reference55 articles.

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