Temporal genetic stability and high effective population size despite fisheries-induced life-history trait evolution in the North Sea sole
Heavy fishing and other anthropogenic influences can have profound impact on a species' resilience to harvesting. Besides the decrease in the census and effective population size, strong declines in mature adults and recruiting individuals may lead to almost irreversible genetic changes in life...
Published in: | Molecular Ecology |
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Language: | English |
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Blackwell Science
2011
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Online Access: | https://lirias.kuleuven.be/handle/123456789/353213 https://doi.org/10.1111/j.1365-294X.2011.05196.x |
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ftunivleuven:oai:lirias.kuleuven.be:123456789/353213 2023-05-15T16:19:23+02:00 Temporal genetic stability and high effective population size despite fisheries-induced life-history trait evolution in the North Sea sole Cuveliers, Els Volckaert, Filip Rijnsdorp, Adriaan Larmuseau, Maarten Maes, Gregory 2011-09 https://lirias.kuleuven.be/handle/123456789/353213 https://doi.org/10.1111/j.1365-294X.2011.05196.x en eng Blackwell Science COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA Molecular Ecology vol:20 issue:17 pages:3555-3568 https://lirias.kuleuven.be/handle/123456789/353213 0962-1083 doi:10.1111/j.1365-294X.2011.05196.x 1365-294X effective population size fishery genetic diversity historical dna microsatellites solea solea cod gadus-morhua plaice pleuronectes-platessa microsatellite null alleles evolving fish stocks marine fish dover sole overlapping generations linkage disequilibrium reproductive success steelhead trout Description (Metadata) only IT article 2011 ftunivleuven https://doi.org/10.1111/j.1365-294X.2011.05196.x 2015-12-22T16:20:36Z Heavy fishing and other anthropogenic influences can have profound impact on a species' resilience to harvesting. Besides the decrease in the census and effective population size, strong declines in mature adults and recruiting individuals may lead to almost irreversible genetic changes in life-history traits. Here, we investigated the evolution of genetic diversity and effective population size in the heavily exploited sole (Solea solea), through the analysis of historical DNA from a collection of 1379 sole otoliths dating back from 1957. Despite documented shifts in life-history traits, neutral genetic diversity inferred from 11 microsatellite markers showed a remarkable stability over a period of 50 years of heavy fishing. Using simulations and corrections for fisheries induced demographic variation, both single-sample estimates and temporal estimates of effective population size (N-e) were always higher than 1000, suggesting that despite the severe census size decrease over a 50-year period of harvesting, genetic drift is probably not strong enough to significantly decrease the neutral diversity of this species in the North Sea. However, the inferred ratio of effective population size to the census size (N-e/N-c) appears very small (10(-5)), suggesting that overall only a low proportion of adults contribute to the next generation. The high N-e level together with the low N-e/N-c ratio is probably caused by a combination of an equalized reproductive output of younger cohorts, a decrease in generation time and a large variance in reproductive success typical for marine species. Because strong evolutionary changes in age and size at first maturation have been observed for sole, changes in adaptive genetic variation should be further monitored to detect the evolutionary consequences of human-induced selection. status: published Article in Journal/Newspaper Gadus morhua KU Leuven: Lirias Dover ENVELOPE(-55.753,-55.753,-83.777,-83.777) Molecular Ecology no no |
institution |
Open Polar |
collection |
KU Leuven: Lirias |
op_collection_id |
ftunivleuven |
language |
English |
topic |
effective population size fishery genetic diversity historical dna microsatellites solea solea cod gadus-morhua plaice pleuronectes-platessa microsatellite null alleles evolving fish stocks marine fish dover sole overlapping generations linkage disequilibrium reproductive success steelhead trout |
spellingShingle |
effective population size fishery genetic diversity historical dna microsatellites solea solea cod gadus-morhua plaice pleuronectes-platessa microsatellite null alleles evolving fish stocks marine fish dover sole overlapping generations linkage disequilibrium reproductive success steelhead trout Cuveliers, Els Volckaert, Filip Rijnsdorp, Adriaan Larmuseau, Maarten Maes, Gregory Temporal genetic stability and high effective population size despite fisheries-induced life-history trait evolution in the North Sea sole |
topic_facet |
effective population size fishery genetic diversity historical dna microsatellites solea solea cod gadus-morhua plaice pleuronectes-platessa microsatellite null alleles evolving fish stocks marine fish dover sole overlapping generations linkage disequilibrium reproductive success steelhead trout |
description |
Heavy fishing and other anthropogenic influences can have profound impact on a species' resilience to harvesting. Besides the decrease in the census and effective population size, strong declines in mature adults and recruiting individuals may lead to almost irreversible genetic changes in life-history traits. Here, we investigated the evolution of genetic diversity and effective population size in the heavily exploited sole (Solea solea), through the analysis of historical DNA from a collection of 1379 sole otoliths dating back from 1957. Despite documented shifts in life-history traits, neutral genetic diversity inferred from 11 microsatellite markers showed a remarkable stability over a period of 50 years of heavy fishing. Using simulations and corrections for fisheries induced demographic variation, both single-sample estimates and temporal estimates of effective population size (N-e) were always higher than 1000, suggesting that despite the severe census size decrease over a 50-year period of harvesting, genetic drift is probably not strong enough to significantly decrease the neutral diversity of this species in the North Sea. However, the inferred ratio of effective population size to the census size (N-e/N-c) appears very small (10(-5)), suggesting that overall only a low proportion of adults contribute to the next generation. The high N-e level together with the low N-e/N-c ratio is probably caused by a combination of an equalized reproductive output of younger cohorts, a decrease in generation time and a large variance in reproductive success typical for marine species. Because strong evolutionary changes in age and size at first maturation have been observed for sole, changes in adaptive genetic variation should be further monitored to detect the evolutionary consequences of human-induced selection. status: published |
format |
Article in Journal/Newspaper |
author |
Cuveliers, Els Volckaert, Filip Rijnsdorp, Adriaan Larmuseau, Maarten Maes, Gregory |
author_facet |
Cuveliers, Els Volckaert, Filip Rijnsdorp, Adriaan Larmuseau, Maarten Maes, Gregory |
author_sort |
Cuveliers, Els |
title |
Temporal genetic stability and high effective population size despite fisheries-induced life-history trait evolution in the North Sea sole |
title_short |
Temporal genetic stability and high effective population size despite fisheries-induced life-history trait evolution in the North Sea sole |
title_full |
Temporal genetic stability and high effective population size despite fisheries-induced life-history trait evolution in the North Sea sole |
title_fullStr |
Temporal genetic stability and high effective population size despite fisheries-induced life-history trait evolution in the North Sea sole |
title_full_unstemmed |
Temporal genetic stability and high effective population size despite fisheries-induced life-history trait evolution in the North Sea sole |
title_sort |
temporal genetic stability and high effective population size despite fisheries-induced life-history trait evolution in the north sea sole |
publisher |
Blackwell Science |
publishDate |
2011 |
url |
https://lirias.kuleuven.be/handle/123456789/353213 https://doi.org/10.1111/j.1365-294X.2011.05196.x |
long_lat |
ENVELOPE(-55.753,-55.753,-83.777,-83.777) |
geographic |
Dover |
geographic_facet |
Dover |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_relation |
Molecular Ecology vol:20 issue:17 pages:3555-3568 https://lirias.kuleuven.be/handle/123456789/353213 0962-1083 doi:10.1111/j.1365-294X.2011.05196.x 1365-294X |
op_doi |
https://doi.org/10.1111/j.1365-294X.2011.05196.x |
container_title |
Molecular Ecology |
container_start_page |
no |
op_container_end_page |
no |
_version_ |
1766005768669102080 |