Data from: Harvesting changes mating behavior in European lobster
Removing individuals from a wild population can affect the availability of prospective mates and the outcome of competitive interactions, with subsequent effects on mating patterns and sexual selection. Consequently, the rate of harvest-induced evolution is predicted to be strongly dependent on the...
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Online Access: | https://doi.org/10.5061/DRYAD.1B1F023 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::197bf8ad279928b10dfeca115616b5aa 2023-05-15T16:08:48+02:00 Data from: Harvesting changes mating behavior in European lobster Sørdalen, Tonje K. Halvorsen, Kim T. Harrison, Hugo B. Ellis, Charlie Vøllestad, Leif Asbjørn Knutsen, Halvor Moland, Even Olsen, Esben M. 2018-01-01 https://doi.org/10.5061/DRYAD.1B1F023 undefined unknown Dryad https://dx.doi.org/10.5061/DRYAD.1B1F023 http://dx.doi.org/10.5061/dryad.1b1f023 lic_creative-commons 10.5061/DRYAD.1B1F023 oai:easy.dans.knaw.nl:easy-dataset:102747 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:102747 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Assortative mating parentage analysis marine protected area (MPA) mating behavior Sexual Selection Homarus gammarus Life sciences medicine and health care psy envir Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2018 fttriple https://doi.org/10.5061/DRYAD.1B1F023 https://doi.org/10.5061/dryad.1b1f023 2023-01-22T16:53:29Z Removing individuals from a wild population can affect the availability of prospective mates and the outcome of competitive interactions, with subsequent effects on mating patterns and sexual selection. Consequently, the rate of harvest-induced evolution is predicted to be strongly dependent on the strength and dynamics of sexual selection yet, there is limited empirical knowledge on the interplay between selective harvesting and the mating systems of exploited species. In this study, we used genetic parentage assignment to compare mating patterns of the highly valued and overexploited European lobster (Homarus gammarus) in a designated lobster reserve and nearby fished area in Southern Norway. In the area open to fishing, the fishery is regulated by a closed season, a minimum legal size and a ban on the harvest of egg-bearing females. Due to the differences in size and sex-specific fishing mortality between the two areas, males and females are of approximately equal average size in the fished area, whereas males tend to be larger in the reserve. Our results show that females would mate with males larger than their own body size, but the relative size difference was significantly larger in the reserve. Sexual selection acted positively on both body size and claw size in males in the reserve, while it was non-significant in fished areas. This strongly suggests that size truncation of males by fishing reduces the variability of traits that sexual selection acts upon. If fisheries continue to target large individuals (particularly males) with higher relative reproductive success, the weakening of sexual selection will likely accelerate fisheries-induced evolution towards smaller body size. Genotype dataGenotypes of males, females and offspring (eggs) used in the parentage assignment.Paternity assesment dataAssesment of multiple and single paternity in offspring batches. Dataset European lobster Homarus gammarus Unknown Norway |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Assortative mating parentage analysis marine protected area (MPA) mating behavior Sexual Selection Homarus gammarus Life sciences medicine and health care psy envir |
spellingShingle |
Assortative mating parentage analysis marine protected area (MPA) mating behavior Sexual Selection Homarus gammarus Life sciences medicine and health care psy envir Sørdalen, Tonje K. Halvorsen, Kim T. Harrison, Hugo B. Ellis, Charlie Vøllestad, Leif Asbjørn Knutsen, Halvor Moland, Even Olsen, Esben M. Data from: Harvesting changes mating behavior in European lobster |
topic_facet |
Assortative mating parentage analysis marine protected area (MPA) mating behavior Sexual Selection Homarus gammarus Life sciences medicine and health care psy envir |
description |
Removing individuals from a wild population can affect the availability of prospective mates and the outcome of competitive interactions, with subsequent effects on mating patterns and sexual selection. Consequently, the rate of harvest-induced evolution is predicted to be strongly dependent on the strength and dynamics of sexual selection yet, there is limited empirical knowledge on the interplay between selective harvesting and the mating systems of exploited species. In this study, we used genetic parentage assignment to compare mating patterns of the highly valued and overexploited European lobster (Homarus gammarus) in a designated lobster reserve and nearby fished area in Southern Norway. In the area open to fishing, the fishery is regulated by a closed season, a minimum legal size and a ban on the harvest of egg-bearing females. Due to the differences in size and sex-specific fishing mortality between the two areas, males and females are of approximately equal average size in the fished area, whereas males tend to be larger in the reserve. Our results show that females would mate with males larger than their own body size, but the relative size difference was significantly larger in the reserve. Sexual selection acted positively on both body size and claw size in males in the reserve, while it was non-significant in fished areas. This strongly suggests that size truncation of males by fishing reduces the variability of traits that sexual selection acts upon. If fisheries continue to target large individuals (particularly males) with higher relative reproductive success, the weakening of sexual selection will likely accelerate fisheries-induced evolution towards smaller body size. Genotype dataGenotypes of males, females and offspring (eggs) used in the parentage assignment.Paternity assesment dataAssesment of multiple and single paternity in offspring batches. |
format |
Dataset |
author |
Sørdalen, Tonje K. Halvorsen, Kim T. Harrison, Hugo B. Ellis, Charlie Vøllestad, Leif Asbjørn Knutsen, Halvor Moland, Even Olsen, Esben M. |
author_facet |
Sørdalen, Tonje K. Halvorsen, Kim T. Harrison, Hugo B. Ellis, Charlie Vøllestad, Leif Asbjørn Knutsen, Halvor Moland, Even Olsen, Esben M. |
author_sort |
Sørdalen, Tonje K. |
title |
Data from: Harvesting changes mating behavior in European lobster |
title_short |
Data from: Harvesting changes mating behavior in European lobster |
title_full |
Data from: Harvesting changes mating behavior in European lobster |
title_fullStr |
Data from: Harvesting changes mating behavior in European lobster |
title_full_unstemmed |
Data from: Harvesting changes mating behavior in European lobster |
title_sort |
data from: harvesting changes mating behavior in european lobster |
publisher |
Dryad |
publishDate |
2018 |
url |
https://doi.org/10.5061/DRYAD.1B1F023 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
European lobster Homarus gammarus |
genre_facet |
European lobster Homarus gammarus |
op_source |
10.5061/DRYAD.1B1F023 oai:easy.dans.knaw.nl:easy-dataset:102747 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:102747 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
https://dx.doi.org/10.5061/DRYAD.1B1F023 http://dx.doi.org/10.5061/dryad.1b1f023 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/DRYAD.1B1F023 https://doi.org/10.5061/dryad.1b1f023 |
_version_ |
1766404810624466944 |