In hot and cold water: differential life-history adaptations are key to success in contrasting thermal deep-sea environments
1.Few species of reptant decapod crustaceans thrive in the cold-stenothermal waters of the Southern Ocean. However, abundant populations of a new species of anomuran crab, Kiwa tyleri, occur at hydrothermal vent fields on the East Scotia Ridge. 2.As a result of local thermal conditions at the vents,...
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ftsouthampton:oai:eprints.soton.ac.uk:374229 2023-08-27T04:12:11+02:00 In hot and cold water: differential life-history adaptations are key to success in contrasting thermal deep-sea environments Marsh, Leigh Tyler, Paul Copley, Jonathan Thatje, Sven 2015-07-01 text https://eprints.soton.ac.uk/374229/ https://eprints.soton.ac.uk/374229/1/Marsh_et_al_2015_Journal_of_Animal_Ecology.pdf en English eng https://eprints.soton.ac.uk/374229/1/Marsh_et_al_2015_Journal_of_Animal_Ecology.pdf Marsh, Leigh, Tyler, Paul, Copley, Jonathan and Thatje, Sven (2015) In hot and cold water: differential life-history adaptations are key to success in contrasting thermal deep-sea environments. Journal of Animal Ecology, 84 (4), 898-913. (doi:10.1111/1365-2656.12337 <http://dx.doi.org/10.1111/1365-2656.12337>). cc_by_4 Article PeerReviewed 2015 ftsouthampton https://doi.org/10.1111/1365-2656.12337 2023-08-03T22:20:58Z 1.Few species of reptant decapod crustaceans thrive in the cold-stenothermal waters of the Southern Ocean. However, abundant populations of a new species of anomuran crab, Kiwa tyleri, occur at hydrothermal vent fields on the East Scotia Ridge. 2.As a result of local thermal conditions at the vents, these crabs are not restricted by the physiological limits that otherwise exclude reptant decapods south of the polar front. 3.We reveal the adult life-history of this species by piecing together variation in microdistribution, body size-frequency, sex ratio, and ovarian and embryonic development, which indicates a pattern in the distribution of female Kiwaidae in relation to their reproductive development. 4.High-density "Kiwa" assemblages observed in close proximity to sources of vent fluids are constrained by the thermal limit of elevated temperatures and the availability of resources for chemosynthetic nutrition. Although adult Kiwaidae depend on epibiotic chemosynthetic bacteria for nutrition, females move offsite after extrusion of their eggs to protect brooding embryos from the chemically harsh, thermally fluctuating vent environment. Consequently, brooding females in the periphery of the vent field are in turn restricted by low-temperature physiological boundaries of the deep-water Southern Ocean environment. Females have a high reproductive investment in few, large, yolky eggs, facilitating full lecithotrophy, with the release of larvae prolonged, and asynchronous. After embryos are released, larvae are reliant on locating isolated active areas of hydrothermal flow in order to settle and survive as chemosynthetic adults. Where the cold water restricts the ability of all adult stages to migrate over long distances, these low temperatures may facilitate the larvae in the location of vent sites by extending the larval development period through hypometabolism. 5.These differential life-history adaptations to contrasting thermal environments lead to a disjunct life history among males and females of Kiwa tyleri, ... Article in Journal/Newspaper Southern Ocean University of Southampton: e-Prints Soton East Scotia Ridge ENVELOPE(-29.250,-29.250,-57.917,-57.917) Southern Ocean Journal of Animal Ecology 84 4 898 913 |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
1.Few species of reptant decapod crustaceans thrive in the cold-stenothermal waters of the Southern Ocean. However, abundant populations of a new species of anomuran crab, Kiwa tyleri, occur at hydrothermal vent fields on the East Scotia Ridge. 2.As a result of local thermal conditions at the vents, these crabs are not restricted by the physiological limits that otherwise exclude reptant decapods south of the polar front. 3.We reveal the adult life-history of this species by piecing together variation in microdistribution, body size-frequency, sex ratio, and ovarian and embryonic development, which indicates a pattern in the distribution of female Kiwaidae in relation to their reproductive development. 4.High-density "Kiwa" assemblages observed in close proximity to sources of vent fluids are constrained by the thermal limit of elevated temperatures and the availability of resources for chemosynthetic nutrition. Although adult Kiwaidae depend on epibiotic chemosynthetic bacteria for nutrition, females move offsite after extrusion of their eggs to protect brooding embryos from the chemically harsh, thermally fluctuating vent environment. Consequently, brooding females in the periphery of the vent field are in turn restricted by low-temperature physiological boundaries of the deep-water Southern Ocean environment. Females have a high reproductive investment in few, large, yolky eggs, facilitating full lecithotrophy, with the release of larvae prolonged, and asynchronous. After embryos are released, larvae are reliant on locating isolated active areas of hydrothermal flow in order to settle and survive as chemosynthetic adults. Where the cold water restricts the ability of all adult stages to migrate over long distances, these low temperatures may facilitate the larvae in the location of vent sites by extending the larval development period through hypometabolism. 5.These differential life-history adaptations to contrasting thermal environments lead to a disjunct life history among males and females of Kiwa tyleri, ... |
format |
Article in Journal/Newspaper |
author |
Marsh, Leigh Tyler, Paul Copley, Jonathan Thatje, Sven |
spellingShingle |
Marsh, Leigh Tyler, Paul Copley, Jonathan Thatje, Sven In hot and cold water: differential life-history adaptations are key to success in contrasting thermal deep-sea environments |
author_facet |
Marsh, Leigh Tyler, Paul Copley, Jonathan Thatje, Sven |
author_sort |
Marsh, Leigh |
title |
In hot and cold water: differential life-history adaptations are key to success in contrasting thermal deep-sea environments |
title_short |
In hot and cold water: differential life-history adaptations are key to success in contrasting thermal deep-sea environments |
title_full |
In hot and cold water: differential life-history adaptations are key to success in contrasting thermal deep-sea environments |
title_fullStr |
In hot and cold water: differential life-history adaptations are key to success in contrasting thermal deep-sea environments |
title_full_unstemmed |
In hot and cold water: differential life-history adaptations are key to success in contrasting thermal deep-sea environments |
title_sort |
in hot and cold water: differential life-history adaptations are key to success in contrasting thermal deep-sea environments |
publishDate |
2015 |
url |
https://eprints.soton.ac.uk/374229/ https://eprints.soton.ac.uk/374229/1/Marsh_et_al_2015_Journal_of_Animal_Ecology.pdf |
long_lat |
ENVELOPE(-29.250,-29.250,-57.917,-57.917) |
geographic |
East Scotia Ridge Southern Ocean |
geographic_facet |
East Scotia Ridge Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://eprints.soton.ac.uk/374229/1/Marsh_et_al_2015_Journal_of_Animal_Ecology.pdf Marsh, Leigh, Tyler, Paul, Copley, Jonathan and Thatje, Sven (2015) In hot and cold water: differential life-history adaptations are key to success in contrasting thermal deep-sea environments. Journal of Animal Ecology, 84 (4), 898-913. (doi:10.1111/1365-2656.12337 <http://dx.doi.org/10.1111/1365-2656.12337>). |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.1111/1365-2656.12337 |
container_title |
Journal of Animal Ecology |
container_volume |
84 |
container_issue |
4 |
container_start_page |
898 |
op_container_end_page |
913 |
_version_ |
1775356046403960832 |