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Temperature and pressure tolerance of larvae of Crepidula fornicata (L. 1758) suggests thermal limitation of bathymetric range

Temperature and pressure tolerance of larvae of Crepidula fornicata (L. 1758) suggests thermal limitation of bathymetric range
Temperature and pressure tolerance of larvae of Crepidula fornicata (L. 1758) suggests thermal limitation of bathymetric range
The extant deep-sea fauna is thought to result from recolonisation of this environment by shallow-water organisms following climate-driven mass extinctions. Planktonic larval tolerance to high pressure is considered an important preadaptation for successful deep-sea invasion. In this study, the pressure and temperature tolerance of a species without any known con-familial deep-sea relative were assessed for the first time. Early- and late-veliger larvae of the shallow-water species Crepidula fornicata were subjected to a temperature/hydrostatic pressure regime from 5 to 25°C and from 0.1 to 40 MPa. Although early- and late-veliger survived pressures equivalent to 2000 m water depth or greater at all temperatures, decreased larval activity indicated significant sublethal temperature and pressure effects. Reduced larval activity of early-veliger at low temperatures suggests that the bathymetric range of this species may be thermally constrained. A mechanistic model is proposed to explain the emerging pattern of ontogenetic shifts in pressure tolerance of shallow-water benthic invertebrates.
0025-3162
743-750
Mestre, Nelia Cristina da Costa
b1adb42c-fb78-45d2-adb5-8a8b6d34986a
Brown, Alastair
909f34db-bc9c-403f-ba8f-31aee1c00161
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533
Mestre, Nelia Cristina da Costa
b1adb42c-fb78-45d2-adb5-8a8b6d34986a
Brown, Alastair
909f34db-bc9c-403f-ba8f-31aee1c00161
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533

Mestre, Nelia Cristina da Costa, Brown, Alastair and Thatje, Sven (2013) Temperature and pressure tolerance of larvae of Crepidula fornicata (L. 1758) suggests thermal limitation of bathymetric range. Marine Biology, 160 (4), 743-750. (doi:10.1007/s00227-012-2128-x).

Record type: Article

Abstract

The extant deep-sea fauna is thought to result from recolonisation of this environment by shallow-water organisms following climate-driven mass extinctions. Planktonic larval tolerance to high pressure is considered an important preadaptation for successful deep-sea invasion. In this study, the pressure and temperature tolerance of a species without any known con-familial deep-sea relative were assessed for the first time. Early- and late-veliger larvae of the shallow-water species Crepidula fornicata were subjected to a temperature/hydrostatic pressure regime from 5 to 25°C and from 0.1 to 40 MPa. Although early- and late-veliger survived pressures equivalent to 2000 m water depth or greater at all temperatures, decreased larval activity indicated significant sublethal temperature and pressure effects. Reduced larval activity of early-veliger at low temperatures suggests that the bathymetric range of this species may be thermally constrained. A mechanistic model is proposed to explain the emerging pattern of ontogenetic shifts in pressure tolerance of shallow-water benthic invertebrates.

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More information

Published date: April 2013
Organisations: Ocean Biochemistry & Ecosystems, Southampton Marine & Maritime Institute

Identifiers

Local EPrints ID: 344753
URI: http://eprints.soton.ac.uk/id/eprint/344753
ISSN: 0025-3162
PURE UUID: e83c1333-db5e-4437-80f8-e7b88fe8f2d1

Catalogue record

Date deposited: 30 Oct 2012 09:33
Last modified: 16 Jul 2019 21:50

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