From drones to bones: Assessing the importance of abiotic factors for salmonid spawning behaviour and embryonic development through a multidisciplinary approach
Abstract The ecology of salmonids is tightly linked to their spawning habitats, but the link between spawning site selection and phenology is poorly understood. To address this, we studied the Arctic charr ( Salvelinus alpinus ) from the postglacial lake Thingvallavatn (Iceland) through a multidisci...
Published in: | Ecology of Freshwater Fish |
---|---|
Main Authors: | , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2022
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/eff.12654 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eff.12654 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/eff.12654 |
id |
crwiley:10.1111/eff.12654 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/eff.12654 2024-06-02T08:00:04+00:00 From drones to bones: Assessing the importance of abiotic factors for salmonid spawning behaviour and embryonic development through a multidisciplinary approach Horta‐Lacueva, Quentin J.‐B. Ólafsdóttir, Jónína H. Finn, Fia Fiskoviča, Edite Ponsioen, Lieke de la Cámara, Marina Kapralova, Kalina H. Icelandic Centre for Research 2022 http://dx.doi.org/10.1111/eff.12654 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eff.12654 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/eff.12654 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecology of Freshwater Fish volume 31, issue 3, page 596-606 ISSN 0906-6691 1600-0633 journal-article 2022 crwiley https://doi.org/10.1111/eff.12654 2024-05-03T11:46:18Z Abstract The ecology of salmonids is tightly linked to their spawning habitats, but the link between spawning site selection and phenology is poorly understood. To address this, we studied the Arctic charr ( Salvelinus alpinus ) from the postglacial lake Thingvallavatn (Iceland) through a multidisciplinary approach involving aerial surveys, behavioural observations, temperature monitoring and embryo rearing experiments. Aerial footage revealed that most nests (i.e. redds) were established in shallow parts of the spawning area, and we reported through direct observations trends for stronger male–male competition and for more frequent courtship behaviours in shallow than in deep redds. While water depth did not correlate with temperature at the time of spawning, the temperatures recorded at the shallow redds were consistently lower in the two months following the video recordings, likely because of the proximity of glacial outlets. Laboratory experiments demonstrated that the temperature regimes in shallow waters can delay hatching with about a month, likely impacting the phenology of the offspring. The viability of the Arctic charr in Thingvallavatn may thus depend on physical features like groundwater springs and upwelling water flows acting as “temperature shelters”. Article in Journal/Newspaper Arctic charr Arctic Iceland Salvelinus alpinus Wiley Online Library Arctic Ecology of Freshwater Fish 31 3 596 606 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The ecology of salmonids is tightly linked to their spawning habitats, but the link between spawning site selection and phenology is poorly understood. To address this, we studied the Arctic charr ( Salvelinus alpinus ) from the postglacial lake Thingvallavatn (Iceland) through a multidisciplinary approach involving aerial surveys, behavioural observations, temperature monitoring and embryo rearing experiments. Aerial footage revealed that most nests (i.e. redds) were established in shallow parts of the spawning area, and we reported through direct observations trends for stronger male–male competition and for more frequent courtship behaviours in shallow than in deep redds. While water depth did not correlate with temperature at the time of spawning, the temperatures recorded at the shallow redds were consistently lower in the two months following the video recordings, likely because of the proximity of glacial outlets. Laboratory experiments demonstrated that the temperature regimes in shallow waters can delay hatching with about a month, likely impacting the phenology of the offspring. The viability of the Arctic charr in Thingvallavatn may thus depend on physical features like groundwater springs and upwelling water flows acting as “temperature shelters”. |
author2 |
Icelandic Centre for Research |
format |
Article in Journal/Newspaper |
author |
Horta‐Lacueva, Quentin J.‐B. Ólafsdóttir, Jónína H. Finn, Fia Fiskoviča, Edite Ponsioen, Lieke de la Cámara, Marina Kapralova, Kalina H. |
spellingShingle |
Horta‐Lacueva, Quentin J.‐B. Ólafsdóttir, Jónína H. Finn, Fia Fiskoviča, Edite Ponsioen, Lieke de la Cámara, Marina Kapralova, Kalina H. From drones to bones: Assessing the importance of abiotic factors for salmonid spawning behaviour and embryonic development through a multidisciplinary approach |
author_facet |
Horta‐Lacueva, Quentin J.‐B. Ólafsdóttir, Jónína H. Finn, Fia Fiskoviča, Edite Ponsioen, Lieke de la Cámara, Marina Kapralova, Kalina H. |
author_sort |
Horta‐Lacueva, Quentin J.‐B. |
title |
From drones to bones: Assessing the importance of abiotic factors for salmonid spawning behaviour and embryonic development through a multidisciplinary approach |
title_short |
From drones to bones: Assessing the importance of abiotic factors for salmonid spawning behaviour and embryonic development through a multidisciplinary approach |
title_full |
From drones to bones: Assessing the importance of abiotic factors for salmonid spawning behaviour and embryonic development through a multidisciplinary approach |
title_fullStr |
From drones to bones: Assessing the importance of abiotic factors for salmonid spawning behaviour and embryonic development through a multidisciplinary approach |
title_full_unstemmed |
From drones to bones: Assessing the importance of abiotic factors for salmonid spawning behaviour and embryonic development through a multidisciplinary approach |
title_sort |
from drones to bones: assessing the importance of abiotic factors for salmonid spawning behaviour and embryonic development through a multidisciplinary approach |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1111/eff.12654 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eff.12654 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/eff.12654 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Iceland Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Iceland Salvelinus alpinus |
op_source |
Ecology of Freshwater Fish volume 31, issue 3, page 596-606 ISSN 0906-6691 1600-0633 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/eff.12654 |
container_title |
Ecology of Freshwater Fish |
container_volume |
31 |
container_issue |
3 |
container_start_page |
596 |
op_container_end_page |
606 |
_version_ |
1800744094287265792 |