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Intraspecific variability in larval development in the lithodine crab Lithodes maja

Intraspecific variability in larval development in the lithodine crab Lithodes maja
Intraspecific variability in larval development in the lithodine crab Lithodes maja
Interspecific comparison of larval duration in lecithotrophic deep-water lineage lithodine king crabs suggests that faster development at a given temperature is associated with greater energetic reserve utilisation. Similarly, intraspecific comparison using data from two different studies has suggested that faster development at a given temperature is associated with greater energetic reserve utilisation in the deep-water-lineage lithodine Lithodes maja. To assess intraspecific covariation in duration of larval development and energetic resource utilisation more robustly, we examined larval development parameters (survival, duration of development, and energetic reserve utilisation) in broods from three different captive-mated females of the northern stone crab L. maja incubated and maintained under identical conditions at 6 °C. Larval survival was similar among broods but duration of development differed. Energetic reserve utilisation also differed among broods with the depletion of C mass and N mass appearing greater in faster developing larvae. The greater energetic cost of more rapid development may contribute to selection pressure for increased per-offspring investment during adaptation to low temperature and high hydrostatic pressure in lithodid species. Although the limited number of broods examined prevents definitive conclusions, results presented here suggest potential links between duration of development and energetic reserve utilisation, warranting further exploration of this relationship.
1385-1101
101813
Brown, Alastair
a2feb629-7d53-4e89-a1c9-cbee6ac3c09b
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533
Smith, Kathryn E.
35c08349-7b3e-4221-9da9-37813753e656
Oliphant, Andrew
a080aa80-9deb-4e70-aadb-7c0b02600735
Brown, Alastair
a2feb629-7d53-4e89-a1c9-cbee6ac3c09b
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533
Smith, Kathryn E.
35c08349-7b3e-4221-9da9-37813753e656
Oliphant, Andrew
a080aa80-9deb-4e70-aadb-7c0b02600735

Brown, Alastair, Thatje, Sven, Smith, Kathryn E. and Oliphant, Andrew (2019) Intraspecific variability in larval development in the lithodine crab Lithodes maja. Journal of Sea Research, 101813. (doi:10.1016/j.seares.2019.101813).

Record type: Article

Abstract

Interspecific comparison of larval duration in lecithotrophic deep-water lineage lithodine king crabs suggests that faster development at a given temperature is associated with greater energetic reserve utilisation. Similarly, intraspecific comparison using data from two different studies has suggested that faster development at a given temperature is associated with greater energetic reserve utilisation in the deep-water-lineage lithodine Lithodes maja. To assess intraspecific covariation in duration of larval development and energetic resource utilisation more robustly, we examined larval development parameters (survival, duration of development, and energetic reserve utilisation) in broods from three different captive-mated females of the northern stone crab L. maja incubated and maintained under identical conditions at 6 °C. Larval survival was similar among broods but duration of development differed. Energetic reserve utilisation also differed among broods with the depletion of C mass and N mass appearing greater in faster developing larvae. The greater energetic cost of more rapid development may contribute to selection pressure for increased per-offspring investment during adaptation to low temperature and high hydrostatic pressure in lithodid species. Although the limited number of broods examined prevents definitive conclusions, results presented here suggest potential links between duration of development and energetic reserve utilisation, warranting further exploration of this relationship.

Text
2Brown_al._J_Sea_Res_manuscript_revised_clean_corrected (2) - Accepted Manuscript
Restricted to Repository staff only until 13 November 2020.
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Accepted/In Press date: 11 November 2019
e-pub ahead of print date: 13 November 2019

Identifiers

Local EPrints ID: 436245
URI: http://eprints.soton.ac.uk/id/eprint/436245
ISSN: 1385-1101
PURE UUID: a2c1cd7c-0bb3-40d0-89a0-116fc201049b

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Date deposited: 04 Dec 2019 17:30
Last modified: 23 Jan 2020 17:35

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Contributors

Author: Alastair Brown
Author: Sven Thatje
Author: Kathryn E. Smith
Author: Andrew Oliphant

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