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The role of temperature on the aerobic response of encapsulated embryos of Ocenebra erinaceus (Neogastropoda, Muricidae): A comparative study between two populations

The role of temperature on the aerobic response of encapsulated embryos of Ocenebra erinaceus (Neogastropoda, Muricidae): A comparative study between two populations
The role of temperature on the aerobic response of encapsulated embryos of Ocenebra erinaceus (Neogastropoda, Muricidae): A comparative study between two populations
Climate warming can affect the developmental rate and embryonic survival of ectothermic species. However, it is largely unknown if the embryos of populations from different thermal regimes will respond differently to increased warming, potentially due to adaptations to natal environmental conditions. The effects of temperature on respiration rates and oxygen content of the intracapsular fluid were studied during the intracapsular development of Ocenebra erinaceus in two subtidal populations, one from the middle of their geographic distribution, the Solent, UK and another towards the southern portion: Arcachon, France. In this laboratory study, embryos were exposed to temperatures in the range of 14–20 °C. The encapsulation period for both populations was shorter at higher temperatures and intracapsular oxygen availability decreased as development progressed. However, the embryonic aerobic response differed between populations. Encapsulated embryos from the southern population (Arcachon) showed higher respiration rates and metabolic adjustment to elevated temperatures; however, encapsulated embryos from the Solent showed no metabolic adjustment, high capsular mortalities and limited acclimation to high temperatures. Our results suggest that aerobic response of encapsulated embryos is locally adapted to the temperature history of their natal environment and illustrates the importance of local environmental history in determining the fate of key life stages in response to a changing marine climate.
0141-1136
Mardones, Maria Loreto
58972563-9548-4d03-97df-0dbbd7970009
Fenberg, Phillip B.
c73918cd-98cc-41e6-a18c-bf0de4f1ace8
Thatje, Sven
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Hauton, Chris
6ced1eb9-f074-45b1-98ec-3101b80dd527
Mardones, Maria Loreto
58972563-9548-4d03-97df-0dbbd7970009
Fenberg, Phillip B.
c73918cd-98cc-41e6-a18c-bf0de4f1ace8
Thatje, Sven
f1011fe3-1048-40c0-97c1-e93b796e6533
Hauton, Chris
6ced1eb9-f074-45b1-98ec-3101b80dd527

Mardones, Maria Loreto, Fenberg, Phillip B., Thatje, Sven and Hauton, Chris (2019) The role of temperature on the aerobic response of encapsulated embryos of Ocenebra erinaceus (Neogastropoda, Muricidae): A comparative study between two populations. Marine Environmental Research, [104815]. (doi:10.1016/j.marenvres.2019.104815).

Record type: Article

Abstract

Climate warming can affect the developmental rate and embryonic survival of ectothermic species. However, it is largely unknown if the embryos of populations from different thermal regimes will respond differently to increased warming, potentially due to adaptations to natal environmental conditions. The effects of temperature on respiration rates and oxygen content of the intracapsular fluid were studied during the intracapsular development of Ocenebra erinaceus in two subtidal populations, one from the middle of their geographic distribution, the Solent, UK and another towards the southern portion: Arcachon, France. In this laboratory study, embryos were exposed to temperatures in the range of 14–20 °C. The encapsulation period for both populations was shorter at higher temperatures and intracapsular oxygen availability decreased as development progressed. However, the embryonic aerobic response differed between populations. Encapsulated embryos from the southern population (Arcachon) showed higher respiration rates and metabolic adjustment to elevated temperatures; however, encapsulated embryos from the Solent showed no metabolic adjustment, high capsular mortalities and limited acclimation to high temperatures. Our results suggest that aerobic response of encapsulated embryos is locally adapted to the temperature history of their natal environment and illustrates the importance of local environmental history in determining the fate of key life stages in response to a changing marine climate.

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Accepted/In Press date: 4 October 2019
e-pub ahead of print date: 7 October 2019

Identifiers

Local EPrints ID: 435674
URI: http://eprints.soton.ac.uk/id/eprint/435674
ISSN: 0141-1136
PURE UUID: e4be9f3c-e563-48d4-ab79-fa742f705a2d

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Date deposited: 18 Nov 2019 17:30
Last modified: 08 Oct 2020 04:23

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