Spawning behavior of Arctic charr (Salvelinus alpinus) : Spawning synchrony, vibrational communication, and mate guarding
A mismatch in synchrony between male and female gamete release in external ferti - lizers can result in reduced or failed fertilization, sperm competition, and reduced paternity. In Arctic charr ( Salvelinus alpinus ), males can adopt either a guard or sneak tactic resulting in both pre- and postcop...
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Online Access: | http://hdl.handle.net/11250/2506360 https://doi.org/10.1002/ece3.4277 |
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ftnorduniv:oai:nordopen.nord.no:11250/2506360 2023-05-15T14:26:04+02:00 Spawning behavior of Arctic charr (Salvelinus alpinus) : Spawning synchrony, vibrational communication, and mate guarding Brattli, Magnus B. Egeland, Torvald Blikra Nordeide, Jarle Tryti Folstad, Ivar 2018 application/pdf http://hdl.handle.net/11250/2506360 https://doi.org/10.1002/ece3.4277 eng eng Wiley Brattli, M. B., Egeland, T. B., Nordeide, J. T. & Folstad, I. (2018). Spawning behavior of Arctic charr (Salvelinus alpinus): Spawning synchrony, vibrational communication, and mate guarding. Ecology and Evolution, 8(16), 8076-8087. doi: urn:issn:2045-7758 http://hdl.handle.net/11250/2506360 https://doi.org/10.1002/ece3.4277 cristin:1598209 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2018, The Author(s) CC-BY 8076-8087 8 Ecology and Evolution 16 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Journal article Peer reviewed 2018 ftnorduniv https://doi.org/10.1002/ece3.4277 2021-07-13T18:13:12Z A mismatch in synchrony between male and female gamete release in external ferti - lizers can result in reduced or failed fertilization, sperm competition, and reduced paternity. In Arctic charr ( Salvelinus alpinus ), males can adopt either a guard or sneak tactic resulting in both pre- and postcopulatory competition between males with al - ternative reproduction tactics. Here, spawning behavior of free- living Arctic charr was video- recorded, and their reproductive behavior was analyzed. From evaluating 157 spawning events, we observed that females mainly spawned with a guarding male and that the female and the guarding male synchronized timing of gamete re - lease under sperm competition. Although sneakers spawned with higher synchrony than the guarding male in single- male spawning events, the average sneaker released his milt less synchronized with the female than the guarding male under sperm com - petition. Approximately 50% of the recorded spawning events occurred under sperm competition, where each event included an average of 2.7 males. Additionally, sneak - ers were more exposed to sperm competition than guarding males. An influx of males, in close proximity to the female, occurred during the behavioral sequences leading up to egg release, but this influx seemed not dependent on egg release, sug - gesting that something else than gonadal product attracts sneaker males to the spawning female. Just before and during the actual release of gametes, the spawning couple vibrates their bodies in close contact and it seems likely that this vibrational communication between the spawning couple, which results in a larger amplitude sound wave than seen under regular courting, reveals time of gamete release to sneaker males. Thus, vibrational communication may enable synchrony between the guarding male and the female, and this might be traded against the cost of higher detectability from surrounding sneaker males, eavesdropping in close proximity. publishedVersion Article in Journal/Newspaper Arctic Arctic charr Arctic Salvelinus alpinus Open archive Nord universitet Arctic Ecology and Evolution 8 16 8076 8087 |
institution |
Open Polar |
collection |
Open archive Nord universitet |
op_collection_id |
ftnorduniv |
language |
English |
topic |
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 |
spellingShingle |
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Brattli, Magnus B. Egeland, Torvald Blikra Nordeide, Jarle Tryti Folstad, Ivar Spawning behavior of Arctic charr (Salvelinus alpinus) : Spawning synchrony, vibrational communication, and mate guarding |
topic_facet |
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 |
description |
A mismatch in synchrony between male and female gamete release in external ferti - lizers can result in reduced or failed fertilization, sperm competition, and reduced paternity. In Arctic charr ( Salvelinus alpinus ), males can adopt either a guard or sneak tactic resulting in both pre- and postcopulatory competition between males with al - ternative reproduction tactics. Here, spawning behavior of free- living Arctic charr was video- recorded, and their reproductive behavior was analyzed. From evaluating 157 spawning events, we observed that females mainly spawned with a guarding male and that the female and the guarding male synchronized timing of gamete re - lease under sperm competition. Although sneakers spawned with higher synchrony than the guarding male in single- male spawning events, the average sneaker released his milt less synchronized with the female than the guarding male under sperm com - petition. Approximately 50% of the recorded spawning events occurred under sperm competition, where each event included an average of 2.7 males. Additionally, sneak - ers were more exposed to sperm competition than guarding males. An influx of males, in close proximity to the female, occurred during the behavioral sequences leading up to egg release, but this influx seemed not dependent on egg release, sug - gesting that something else than gonadal product attracts sneaker males to the spawning female. Just before and during the actual release of gametes, the spawning couple vibrates their bodies in close contact and it seems likely that this vibrational communication between the spawning couple, which results in a larger amplitude sound wave than seen under regular courting, reveals time of gamete release to sneaker males. Thus, vibrational communication may enable synchrony between the guarding male and the female, and this might be traded against the cost of higher detectability from surrounding sneaker males, eavesdropping in close proximity. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Brattli, Magnus B. Egeland, Torvald Blikra Nordeide, Jarle Tryti Folstad, Ivar |
author_facet |
Brattli, Magnus B. Egeland, Torvald Blikra Nordeide, Jarle Tryti Folstad, Ivar |
author_sort |
Brattli, Magnus B. |
title |
Spawning behavior of Arctic charr (Salvelinus alpinus) : Spawning synchrony, vibrational communication, and mate guarding |
title_short |
Spawning behavior of Arctic charr (Salvelinus alpinus) : Spawning synchrony, vibrational communication, and mate guarding |
title_full |
Spawning behavior of Arctic charr (Salvelinus alpinus) : Spawning synchrony, vibrational communication, and mate guarding |
title_fullStr |
Spawning behavior of Arctic charr (Salvelinus alpinus) : Spawning synchrony, vibrational communication, and mate guarding |
title_full_unstemmed |
Spawning behavior of Arctic charr (Salvelinus alpinus) : Spawning synchrony, vibrational communication, and mate guarding |
title_sort |
spawning behavior of arctic charr (salvelinus alpinus) : spawning synchrony, vibrational communication, and mate guarding |
publisher |
Wiley |
publishDate |
2018 |
url |
http://hdl.handle.net/11250/2506360 https://doi.org/10.1002/ece3.4277 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic Arctic charr Arctic Salvelinus alpinus |
op_source |
8076-8087 8 Ecology and Evolution 16 |
op_relation |
Brattli, M. B., Egeland, T. B., Nordeide, J. T. & Folstad, I. (2018). Spawning behavior of Arctic charr (Salvelinus alpinus): Spawning synchrony, vibrational communication, and mate guarding. Ecology and Evolution, 8(16), 8076-8087. doi: urn:issn:2045-7758 http://hdl.handle.net/11250/2506360 https://doi.org/10.1002/ece3.4277 cristin:1598209 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2018, The Author(s) |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/ece3.4277 |
container_title |
Ecology and Evolution |
container_volume |
8 |
container_issue |
16 |
container_start_page |
8076 |
op_container_end_page |
8087 |
_version_ |
1766298552884002816 |