Trait‐based approach using in situ copepod images reveals contrasting ecological patterns across an Arctic ice melt zone
International audience Imaging techniques are increasingly used in ecology studies, producing vast quantities of data. Inferring functional traits from individual images can provide original insights on ecosystem processes. Morphological traits are, as other functional traits, individual characteris...
Published in: | Limnology and Oceanography |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2021
|
Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-03458251 https://hal.archives-ouvertes.fr/hal-03458251/document https://hal.archives-ouvertes.fr/hal-03458251/file/Limnology%20Oceanography%20-%202021%20-%20Vilgrain%20-%20Trait%25u2010based%20approach%20using%20in%20situ%20copepod%20images%20reveals%20contrasting.pdf https://doi.org/10.1002/lno.11672 |
id |
ftecolephe:oai:HAL:hal-03458251v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
EPHE (Ecole pratique des hautes études, Paris): HAL |
op_collection_id |
ftecolephe |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Vilgrain, Laure Maps, Frédéric Picheral, Marc Babin, Marcel Aubry, Cyril Irisson, Jean-Olivier Ayata, Sakina-Dorothée Trait‐based approach using in situ copepod images reveals contrasting ecological patterns across an Arctic ice melt zone |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Imaging techniques are increasingly used in ecology studies, producing vast quantities of data. Inferring functional traits from individual images can provide original insights on ecosystem processes. Morphological traits are, as other functional traits, individual characteristics influencing an organism's fitness. We measured them from in situ image data to study an Arctic zooplankton community during sea ice break-up. Morphological descriptors (e.g., area, lightness, complexity) were automatically measured on ∼ 28,000 individual copepod images from a high-resolution underwater camera deployed at more than 150 sampling sites across the ice-edge. A statistically-defined morphological space allowed synthesizing morphological information into interpretable and continuous traits (size, opacity, and appendages visibility). This novel approach provides theoretical and methodological advantages because it gives access to both inter- and intra-specific variability by automatically analyzing a large dataset of individual images. The spatial distribution of morphological traits revealed that large copepods are associated with ice-covered waters, while open waters host smaller individuals. In those ice-free waters, copepods also seem to feed more actively, as suggested by the increased visibility of their appendages. These traits distributions are likely explained by bottom-up control: high phytoplankton concentrations in the well-lit open waters encourages individuals to actively feed and stimulates the development of small copepod stages. Furthermore, copepods located at the ice edge were opaquer, presumably because of full guts or an increase in red pigmentation. Our morphological trait-based approach revealed ecological patterns that would have been inaccessible otherwise, including color and posture variations of copepods associated with ice-edge environments in Arctic ecosystems. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Takuvik Joint International Laboratory ULAVAL-CNRS Université Laval Québec (ULaval)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut de Systématique, Evolution, Biodiversité (ISYEB ) Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) |
format |
Article in Journal/Newspaper |
author |
Vilgrain, Laure Maps, Frédéric Picheral, Marc Babin, Marcel Aubry, Cyril Irisson, Jean-Olivier Ayata, Sakina-Dorothée |
author_facet |
Vilgrain, Laure Maps, Frédéric Picheral, Marc Babin, Marcel Aubry, Cyril Irisson, Jean-Olivier Ayata, Sakina-Dorothée |
author_sort |
Vilgrain, Laure |
title |
Trait‐based approach using in situ copepod images reveals contrasting ecological patterns across an Arctic ice melt zone |
title_short |
Trait‐based approach using in situ copepod images reveals contrasting ecological patterns across an Arctic ice melt zone |
title_full |
Trait‐based approach using in situ copepod images reveals contrasting ecological patterns across an Arctic ice melt zone |
title_fullStr |
Trait‐based approach using in situ copepod images reveals contrasting ecological patterns across an Arctic ice melt zone |
title_full_unstemmed |
Trait‐based approach using in situ copepod images reveals contrasting ecological patterns across an Arctic ice melt zone |
title_sort |
trait‐based approach using in situ copepod images reveals contrasting ecological patterns across an arctic ice melt zone |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.archives-ouvertes.fr/hal-03458251 https://hal.archives-ouvertes.fr/hal-03458251/document https://hal.archives-ouvertes.fr/hal-03458251/file/Limnology%20Oceanography%20-%202021%20-%20Vilgrain%20-%20Trait%25u2010based%20approach%20using%20in%20situ%20copepod%20images%20reveals%20contrasting.pdf https://doi.org/10.1002/lno.11672 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Phytoplankton Sea ice Zooplankton Copepods ice covered waters |
genre_facet |
Arctic Phytoplankton Sea ice Zooplankton Copepods ice covered waters |
op_source |
ISSN: 0024-3590 EISSN: 1939-5590 Limnology and Oceanography https://hal.archives-ouvertes.fr/hal-03458251 Limnology and Oceanography, Association for the Sciences of Limnology and Oceanography, 2021, 66 (4), pp.1155-1167. ⟨10.1002/lno.11672⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/lno.11672 hal-03458251 https://hal.archives-ouvertes.fr/hal-03458251 https://hal.archives-ouvertes.fr/hal-03458251/document https://hal.archives-ouvertes.fr/hal-03458251/file/Limnology%20Oceanography%20-%202021%20-%20Vilgrain%20-%20Trait%25u2010based%20approach%20using%20in%20situ%20copepod%20images%20reveals%20contrasting.pdf doi:10.1002/lno.11672 WOS: 000607644200001 |
op_rights |
http://creativecommons.org/licenses/by-nd/ info:eu-repo/semantics/OpenAccess |
op_rightsnorm |
CC-BY-ND |
op_doi |
https://doi.org/10.1002/lno.11672 |
container_title |
Limnology and Oceanography |
container_volume |
66 |
container_issue |
4 |
container_start_page |
1155 |
op_container_end_page |
1167 |
_version_ |
1766327740978429952 |
spelling |
ftecolephe:oai:HAL:hal-03458251v1 2023-05-15T14:55:43+02:00 Trait‐based approach using in situ copepod images reveals contrasting ecological patterns across an Arctic ice melt zone Vilgrain, Laure Maps, Frédéric Picheral, Marc Babin, Marcel Aubry, Cyril Irisson, Jean-Olivier Ayata, Sakina-Dorothée Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Takuvik Joint International Laboratory ULAVAL-CNRS Université Laval Québec (ULaval)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut de Systématique, Evolution, Biodiversité (ISYEB ) Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) 2021-04 https://hal.archives-ouvertes.fr/hal-03458251 https://hal.archives-ouvertes.fr/hal-03458251/document https://hal.archives-ouvertes.fr/hal-03458251/file/Limnology%20Oceanography%20-%202021%20-%20Vilgrain%20-%20Trait%25u2010based%20approach%20using%20in%20situ%20copepod%20images%20reveals%20contrasting.pdf https://doi.org/10.1002/lno.11672 en eng HAL CCSD Association for the Sciences of Limnology and Oceanography info:eu-repo/semantics/altIdentifier/doi/10.1002/lno.11672 hal-03458251 https://hal.archives-ouvertes.fr/hal-03458251 https://hal.archives-ouvertes.fr/hal-03458251/document https://hal.archives-ouvertes.fr/hal-03458251/file/Limnology%20Oceanography%20-%202021%20-%20Vilgrain%20-%20Trait%25u2010based%20approach%20using%20in%20situ%20copepod%20images%20reveals%20contrasting.pdf doi:10.1002/lno.11672 WOS: 000607644200001 http://creativecommons.org/licenses/by-nd/ info:eu-repo/semantics/OpenAccess CC-BY-ND ISSN: 0024-3590 EISSN: 1939-5590 Limnology and Oceanography https://hal.archives-ouvertes.fr/hal-03458251 Limnology and Oceanography, Association for the Sciences of Limnology and Oceanography, 2021, 66 (4), pp.1155-1167. ⟨10.1002/lno.11672⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2021 ftecolephe https://doi.org/10.1002/lno.11672 2022-10-11T23:13:51Z International audience Imaging techniques are increasingly used in ecology studies, producing vast quantities of data. Inferring functional traits from individual images can provide original insights on ecosystem processes. Morphological traits are, as other functional traits, individual characteristics influencing an organism's fitness. We measured them from in situ image data to study an Arctic zooplankton community during sea ice break-up. Morphological descriptors (e.g., area, lightness, complexity) were automatically measured on ∼ 28,000 individual copepod images from a high-resolution underwater camera deployed at more than 150 sampling sites across the ice-edge. A statistically-defined morphological space allowed synthesizing morphological information into interpretable and continuous traits (size, opacity, and appendages visibility). This novel approach provides theoretical and methodological advantages because it gives access to both inter- and intra-specific variability by automatically analyzing a large dataset of individual images. The spatial distribution of morphological traits revealed that large copepods are associated with ice-covered waters, while open waters host smaller individuals. In those ice-free waters, copepods also seem to feed more actively, as suggested by the increased visibility of their appendages. These traits distributions are likely explained by bottom-up control: high phytoplankton concentrations in the well-lit open waters encourages individuals to actively feed and stimulates the development of small copepod stages. Furthermore, copepods located at the ice edge were opaquer, presumably because of full guts or an increase in red pigmentation. Our morphological trait-based approach revealed ecological patterns that would have been inaccessible otherwise, including color and posture variations of copepods associated with ice-edge environments in Arctic ecosystems. Article in Journal/Newspaper Arctic Phytoplankton Sea ice Zooplankton Copepods ice covered waters EPHE (Ecole pratique des hautes études, Paris): HAL Arctic Limnology and Oceanography 66 4 1155 1167 |