Growth Interruptions in Arctic Rhodoliths Correspond to Water Depth and Rhodolith Morphology
Coralline algae that form rhodoliths are widespread globally and their skeletal growth patterns have been used as (paleo-) environmental proxies in a variety of studies. However, growth interruptions (hiati) within their calcareous skeletons are regarded as problematic in this context. Here we inves...
Published in: | Minerals |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2021
|
Subjects: | |
Online Access: | https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/16588 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-165886 https://doi.org/10.3390/min11050538 https://opus4.kobv.de/opus4-fau/files/16588/minerals-11-00538.pdf |
id |
ftuniverlangen:oai:ub.uni-erlangen.de-opus:16588 |
---|---|
record_format |
openpolar |
spelling |
ftuniverlangen:oai:ub.uni-erlangen.de-opus:16588 2023-05-15T14:58:31+02:00 Growth Interruptions in Arctic Rhodoliths Correspond to Water Depth and Rhodolith Morphology Schlüter, Moritz Pyko, Ines Wisshak, Max Schulbert, Christian Teichert, Sebastian 2021-05-19 application/pdf https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/16588 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-165886 https://doi.org/10.3390/min11050538 https://opus4.kobv.de/opus4-fau/files/16588/minerals-11-00538.pdf eng eng https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/16588 urn:nbn:de:bvb:29-opus4-165886 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-165886 https://doi.org/10.3390/min11050538 https://opus4.kobv.de/opus4-fau/files/16588/minerals-11-00538.pdf https://creativecommons.org/licenses/by/4.0/deed.de info:eu-repo/semantics/openAccess CC-BY ddc:550 article doc-type:article 2021 ftuniverlangen https://doi.org/10.3390/min11050538 2022-07-28T20:39:38Z Coralline algae that form rhodoliths are widespread globally and their skeletal growth patterns have been used as (paleo-) environmental proxies in a variety of studies. However, growth interruptions (hiati) within their calcareous skeletons are regarded as problematic in this context. Here we investigated how hiati in the growth of Arctic rhodoliths from the Svalbard archipelago correspond to their environment and morphology. Using X-ray micro-computed tomography and stepwise model selections, we found that rhodoliths from deeper waters are subject to more frequent hiatus formation. In addition, rhodoliths with a higher sphericity (i.e., roundness) are less often affected by such growth interruptions. We conclude that these correlations are mainly regulated by hydrodynamics, because, in deeper waters, rhodoliths are not turned frequently enough to prevent a dieback of coralline algal thalli forming on the underside of the rhodolith. In this coherence, spheroidal rhodoliths are turned more easily, therefore shortening the amount of time between turnover events. Moreover, the incidence of light is more advantageous in shallower waters where rhodoliths exhibit a greater share of their surface to diffused ambient light, thus enabling thallus growth also on the down-facing surface of the rhodoliths. In consequence, information on the frequency of hiatus formation combined with rhodolith morphology might serve as a valuable proxy for (paleo-)environmental reconstructions in respect to light availability and the hydrodynamic regime. Article in Journal/Newspaper Arctic Svalbard OPUS FAU - Online publication system of Friedrich-Alexander-Universität Erlangen-Nürnberg Arctic Svalbard Svalbard Archipelago Minerals 11 5 538 |
institution |
Open Polar |
collection |
OPUS FAU - Online publication system of Friedrich-Alexander-Universität Erlangen-Nürnberg |
op_collection_id |
ftuniverlangen |
language |
English |
topic |
ddc:550 |
spellingShingle |
ddc:550 Schlüter, Moritz Pyko, Ines Wisshak, Max Schulbert, Christian Teichert, Sebastian Growth Interruptions in Arctic Rhodoliths Correspond to Water Depth and Rhodolith Morphology |
topic_facet |
ddc:550 |
description |
Coralline algae that form rhodoliths are widespread globally and their skeletal growth patterns have been used as (paleo-) environmental proxies in a variety of studies. However, growth interruptions (hiati) within their calcareous skeletons are regarded as problematic in this context. Here we investigated how hiati in the growth of Arctic rhodoliths from the Svalbard archipelago correspond to their environment and morphology. Using X-ray micro-computed tomography and stepwise model selections, we found that rhodoliths from deeper waters are subject to more frequent hiatus formation. In addition, rhodoliths with a higher sphericity (i.e., roundness) are less often affected by such growth interruptions. We conclude that these correlations are mainly regulated by hydrodynamics, because, in deeper waters, rhodoliths are not turned frequently enough to prevent a dieback of coralline algal thalli forming on the underside of the rhodolith. In this coherence, spheroidal rhodoliths are turned more easily, therefore shortening the amount of time between turnover events. Moreover, the incidence of light is more advantageous in shallower waters where rhodoliths exhibit a greater share of their surface to diffused ambient light, thus enabling thallus growth also on the down-facing surface of the rhodoliths. In consequence, information on the frequency of hiatus formation combined with rhodolith morphology might serve as a valuable proxy for (paleo-)environmental reconstructions in respect to light availability and the hydrodynamic regime. |
format |
Article in Journal/Newspaper |
author |
Schlüter, Moritz Pyko, Ines Wisshak, Max Schulbert, Christian Teichert, Sebastian |
author_facet |
Schlüter, Moritz Pyko, Ines Wisshak, Max Schulbert, Christian Teichert, Sebastian |
author_sort |
Schlüter, Moritz |
title |
Growth Interruptions in Arctic Rhodoliths Correspond to Water Depth and Rhodolith Morphology |
title_short |
Growth Interruptions in Arctic Rhodoliths Correspond to Water Depth and Rhodolith Morphology |
title_full |
Growth Interruptions in Arctic Rhodoliths Correspond to Water Depth and Rhodolith Morphology |
title_fullStr |
Growth Interruptions in Arctic Rhodoliths Correspond to Water Depth and Rhodolith Morphology |
title_full_unstemmed |
Growth Interruptions in Arctic Rhodoliths Correspond to Water Depth and Rhodolith Morphology |
title_sort |
growth interruptions in arctic rhodoliths correspond to water depth and rhodolith morphology |
publishDate |
2021 |
url |
https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/16588 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-165886 https://doi.org/10.3390/min11050538 https://opus4.kobv.de/opus4-fau/files/16588/minerals-11-00538.pdf |
geographic |
Arctic Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Svalbard Svalbard Archipelago |
genre |
Arctic Svalbard |
genre_facet |
Arctic Svalbard |
op_relation |
https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/16588 urn:nbn:de:bvb:29-opus4-165886 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-165886 https://doi.org/10.3390/min11050538 https://opus4.kobv.de/opus4-fau/files/16588/minerals-11-00538.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/deed.de info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/min11050538 |
container_title |
Minerals |
container_volume |
11 |
container_issue |
5 |
container_start_page |
538 |
_version_ |
1766330669555777536 |