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Temperature effects on larval development in the lithodid crab Lithodes maja

Temperature effects on larval development in the lithodid crab Lithodes maja
Temperature effects on larval development in the lithodid crab Lithodes maja

Physiological adaptations enabling tolerance of low temperature, as well as adaptations in larval development, are thought to be critical to the global radiation of deep-water lineages of lithodine crabs. However, global climate change is warming the oceans, potentially impacting the biogeographic distributions of these large predatory crabs. To date, larval thermal scope has only been explored in a few deep-water lineage lithodines. We assessed larval development parameters in the northern stone crab Lithodes maja at temperatures ranging from 1 °C to 15 °C. We examined larval survival, duration of development, energetic reserve utilisation, and respiration rate. L. maja larvae displayed a narrow thermal tolerance window and metamorphosed successfully at 6 °C only. Differential uses of energetic reserves among temperatures during development in L. maja support the interpretation of a narrow larval thermal scope and indicate that 6 °C is the optimum temperature for development in this species. Consequently, continued ocean warming is likely to force biogeographic range shifts in L. maja.

Bioenergetics, Early ontogeny, Lecithotrophy, Lithodid, Respiration
1385-1101
73-84
Brown, Alastair
909f34db-bc9c-403f-ba8f-31aee1c00161
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533
Oliphant, Andrew
a080aa80-9deb-4e70-aadb-7c0b02600735
Munro, Catriona
fcf87280-e033-4e41-8d50-2cba2a16869d
Smith, Kathryn E.
75b4bc22-cc17-4391-82f8-9f4da7c2df29
Brown, Alastair
909f34db-bc9c-403f-ba8f-31aee1c00161
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533
Oliphant, Andrew
a080aa80-9deb-4e70-aadb-7c0b02600735
Munro, Catriona
fcf87280-e033-4e41-8d50-2cba2a16869d
Smith, Kathryn E.
75b4bc22-cc17-4391-82f8-9f4da7c2df29

Brown, Alastair, Thatje, Sven, Oliphant, Andrew, Munro, Catriona and Smith, Kathryn E. (2018) Temperature effects on larval development in the lithodid crab Lithodes maja. Journal of Sea Research, 139, 73-84. (doi:10.1016/j.seares.2018.06.009).

Record type: Article

Abstract

Physiological adaptations enabling tolerance of low temperature, as well as adaptations in larval development, are thought to be critical to the global radiation of deep-water lineages of lithodine crabs. However, global climate change is warming the oceans, potentially impacting the biogeographic distributions of these large predatory crabs. To date, larval thermal scope has only been explored in a few deep-water lineage lithodines. We assessed larval development parameters in the northern stone crab Lithodes maja at temperatures ranging from 1 °C to 15 °C. We examined larval survival, duration of development, energetic reserve utilisation, and respiration rate. L. maja larvae displayed a narrow thermal tolerance window and metamorphosed successfully at 6 °C only. Differential uses of energetic reserves among temperatures during development in L. maja support the interpretation of a narrow larval thermal scope and indicate that 6 °C is the optimum temperature for development in this species. Consequently, continued ocean warming is likely to force biogeographic range shifts in L. maja.

Text
Brown_al._J_Sea_Res_ms_I_revised_clean - Accepted Manuscript
Restricted to Repository staff only until 14 June 2019.
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More information

Accepted/In Press date: 12 June 2018
e-pub ahead of print date: 14 June 2018
Published date: 1 September 2018
Keywords: Bioenergetics, Early ontogeny, Lecithotrophy, Lithodid, Respiration

Identifiers

Local EPrints ID: 422560
URI: https://eprints.soton.ac.uk/id/eprint/422560
ISSN: 1385-1101
PURE UUID: 58e33968-e8d3-4d9f-aa58-324ae653ff46

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Date deposited: 25 Jul 2018 16:30
Last modified: 13 Mar 2019 18:16

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