Results from experiments and investigations on the kelp crab Taliepus dentatus
Studies of thermal tolerance in marine ectotherms are key in understanding climate effects on ecosystems; however, tolerance of their larval stages has rarely been analyzed. Larval stages are expected to be particularly sensitive. Thermal stress may affect their potential for dispersal and zoogeogra...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.744981 2023-05-15T13:42:10+02:00 Results from experiments and investigations on the kelp crab Taliepus dentatus Storch, Daniela Santelices, Pedro Barria, Jessica Cabeza, Karla Pörtner, Hans-Otto Fernández, Miriam MEDIAN LATITUDE: -38.690000 * MEDIAN LONGITUDE: -72.680000 * SOUTH-BOUND LATITUDE: -43.900000 * WEST-BOUND LONGITUDE: -73.730000 * NORTH-BOUND LATITUDE: -33.480000 * EAST-BOUND LONGITUDE: -71.630000 * DATE/TIME START: 2006-10-01T00:00:00 * DATE/TIME END: 2006-11-01T00:00:00 2009-09-03 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.744981 https://doi.org/10.1594/PANGAEA.744981 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.744981 https://doi.org/10.1594/PANGAEA.744981 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Storch, Daniela; Santelices, Pedro; Barria, Jessica; Cabeza, Karla; Pörtner, Hans-Otto; Fernández, Miriam (2009): Thermal tolerance of crustacean larvae (zoea I) in two different populations of the kelp crab Taliepus dentatus (Milne-Edwards). The Journal of Experimental Biology, 212, 1371-1376, https://doi.org/10.1242/jeb.030205 DIVER Las Cruces central Chile Melinka southern Chile Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Sampling by diver Site-CC Site-SC SPP1158 Dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.744981 https://doi.org/10.1242/jeb.030205 2023-01-20T07:31:53Z Studies of thermal tolerance in marine ectotherms are key in understanding climate effects on ecosystems; however, tolerance of their larval stages has rarely been analyzed. Larval stages are expected to be particularly sensitive. Thermal stress may affect their potential for dispersal and zoogeographical distribution. A mismatch between oxygen demand and the limited capacity of oxygen supply to tissues has been hypothesized to be the first mechanism restricting survival at thermal extremes. Therefore, thermal tolerance of stage zoea I larvae was examined in two populations of the Chilean kelp crab Taliepus dentatus, which are separated by latitude and the thermal regime. We measured temperature-dependent activity, oxygen consumption, cardiac performance, body mass and the carbon (C) and nitrogen (N) composition in order to: (1) examine thermal effects from organismal to cellular levels, and (2) compare the thermal tolerance of larvae from two environmental temperature regimes. We found that larval performance is affected at thermal extremes indicated by decreases in activity, mainly in maxilliped beat rates, followed by decreases in oxygen consumption rates. Cardiac stroke volume was almost temperature-independent. Through changes in heart rate, cardiac output supported oxygen demand within the thermal window whereas at low and high temperature extremes heart rate declined. The comparison between southern and central populations suggests the adaptation of southern larvae to a colder temperature regime, with higher cardiac outputs due to increased cardiac stroke volumes, larger body sizes but similar body composition as indicated by similar C:N ratios. This limited but clear differentiation of thermal windows between populations allows the species to widen its biogeographical range. Dataset Antarc* Antarctic Arctic Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Antarctic ENVELOPE(-73.730000,-71.630000,-33.480000,-43.900000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
DIVER Las Cruces central Chile Melinka southern Chile Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Sampling by diver Site-CC Site-SC SPP1158 |
spellingShingle |
DIVER Las Cruces central Chile Melinka southern Chile Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Sampling by diver Site-CC Site-SC SPP1158 Storch, Daniela Santelices, Pedro Barria, Jessica Cabeza, Karla Pörtner, Hans-Otto Fernández, Miriam Results from experiments and investigations on the kelp crab Taliepus dentatus |
topic_facet |
DIVER Las Cruces central Chile Melinka southern Chile Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Sampling by diver Site-CC Site-SC SPP1158 |
description |
Studies of thermal tolerance in marine ectotherms are key in understanding climate effects on ecosystems; however, tolerance of their larval stages has rarely been analyzed. Larval stages are expected to be particularly sensitive. Thermal stress may affect their potential for dispersal and zoogeographical distribution. A mismatch between oxygen demand and the limited capacity of oxygen supply to tissues has been hypothesized to be the first mechanism restricting survival at thermal extremes. Therefore, thermal tolerance of stage zoea I larvae was examined in two populations of the Chilean kelp crab Taliepus dentatus, which are separated by latitude and the thermal regime. We measured temperature-dependent activity, oxygen consumption, cardiac performance, body mass and the carbon (C) and nitrogen (N) composition in order to: (1) examine thermal effects from organismal to cellular levels, and (2) compare the thermal tolerance of larvae from two environmental temperature regimes. We found that larval performance is affected at thermal extremes indicated by decreases in activity, mainly in maxilliped beat rates, followed by decreases in oxygen consumption rates. Cardiac stroke volume was almost temperature-independent. Through changes in heart rate, cardiac output supported oxygen demand within the thermal window whereas at low and high temperature extremes heart rate declined. The comparison between southern and central populations suggests the adaptation of southern larvae to a colder temperature regime, with higher cardiac outputs due to increased cardiac stroke volumes, larger body sizes but similar body composition as indicated by similar C:N ratios. This limited but clear differentiation of thermal windows between populations allows the species to widen its biogeographical range. |
format |
Dataset |
author |
Storch, Daniela Santelices, Pedro Barria, Jessica Cabeza, Karla Pörtner, Hans-Otto Fernández, Miriam |
author_facet |
Storch, Daniela Santelices, Pedro Barria, Jessica Cabeza, Karla Pörtner, Hans-Otto Fernández, Miriam |
author_sort |
Storch, Daniela |
title |
Results from experiments and investigations on the kelp crab Taliepus dentatus |
title_short |
Results from experiments and investigations on the kelp crab Taliepus dentatus |
title_full |
Results from experiments and investigations on the kelp crab Taliepus dentatus |
title_fullStr |
Results from experiments and investigations on the kelp crab Taliepus dentatus |
title_full_unstemmed |
Results from experiments and investigations on the kelp crab Taliepus dentatus |
title_sort |
results from experiments and investigations on the kelp crab taliepus dentatus |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.744981 https://doi.org/10.1594/PANGAEA.744981 |
op_coverage |
MEDIAN LATITUDE: -38.690000 * MEDIAN LONGITUDE: -72.680000 * SOUTH-BOUND LATITUDE: -43.900000 * WEST-BOUND LONGITUDE: -73.730000 * NORTH-BOUND LATITUDE: -33.480000 * EAST-BOUND LONGITUDE: -71.630000 * DATE/TIME START: 2006-10-01T00:00:00 * DATE/TIME END: 2006-11-01T00:00:00 |
long_lat |
ENVELOPE(-73.730000,-71.630000,-33.480000,-43.900000) |
geographic |
Arctic Antarctic |
geographic_facet |
Arctic Antarctic |
genre |
Antarc* Antarctic Arctic Sea ice |
genre_facet |
Antarc* Antarctic Arctic Sea ice |
op_source |
Supplement to: Storch, Daniela; Santelices, Pedro; Barria, Jessica; Cabeza, Karla; Pörtner, Hans-Otto; Fernández, Miriam (2009): Thermal tolerance of crustacean larvae (zoea I) in two different populations of the kelp crab Taliepus dentatus (Milne-Edwards). The Journal of Experimental Biology, 212, 1371-1376, https://doi.org/10.1242/jeb.030205 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.744981 https://doi.org/10.1594/PANGAEA.744981 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.744981 https://doi.org/10.1242/jeb.030205 |
_version_ |
1766163843854106624 |