The Riddle of How Fisheries Influence Genetic Diversity
Overfishing drives population decline, which in turn drives loss of genetic diversity. Many studies provide evidence of declines in genetic diversity; however, controversy exists within the literature, as some studies show evidence of no change in genetic diversity despite decades of overharvesting....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-10-01
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| Series: | Fishes |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2410-3888/8/10/510 |
| _version_ | 1827720965431230464 |
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| author | Daniel E. Sadler Phillip C. Watts Silva Uusi-Heikkilä |
| author_facet | Daniel E. Sadler Phillip C. Watts Silva Uusi-Heikkilä |
| author_sort | Daniel E. Sadler |
| collection | DOAJ |
| description | Overfishing drives population decline, which in turn drives loss of genetic diversity. Many studies provide evidence of declines in genetic diversity; however, controversy exists within the literature, as some studies show evidence of no change in genetic diversity despite decades of overharvesting. The apparent discrepancy in the literature should therefore be examined to understand what biological and ecological processes are driving the differences in results. Here, we assess how different factors contribute to fisheries-induced susceptibility to declines in genetic diversity by first focusing on the different roles of genetic markers. Second, we assess how habitat type and conditions contribute to loss of genetic diversity. Third, we assess how life history and physiology affects catchability and loss of genetic diversity. Finally, we discuss how coinciding abiotic and biotic factors influence the intensity of genetic loss. We find a multitude of these factors could be interacting to influence how results are perceived and how intense the loss of genetic diversity can be. Future studies should carefully consider the methodology of genetic analysis used, as well as considerations of life history and ecology of the target species. |
| first_indexed | 2024-03-10T21:15:31Z |
| format | Article |
| id | doaj.art-3b9f277c902146c3af873f7fcdcc452e |
| institution | Directory Open Access Journal |
| issn | 2410-3888 |
| language | English |
| last_indexed | 2024-03-10T21:15:31Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fishes |
| spelling | doaj.art-3b9f277c902146c3af873f7fcdcc452e2023-11-19T16:28:00ZengMDPI AGFishes2410-38882023-10-0181051010.3390/fishes8100510The Riddle of How Fisheries Influence Genetic DiversityDaniel E. Sadler0Phillip C. Watts1Silva Uusi-Heikkilä2Department of Biological and Environmental Science, University of Jyväskylä, 40500 Jyväskylä, FinlandDepartment of Biological and Environmental Science, University of Jyväskylä, 40500 Jyväskylä, FinlandDepartment of Biological and Environmental Science, University of Jyväskylä, 40500 Jyväskylä, FinlandOverfishing drives population decline, which in turn drives loss of genetic diversity. Many studies provide evidence of declines in genetic diversity; however, controversy exists within the literature, as some studies show evidence of no change in genetic diversity despite decades of overharvesting. The apparent discrepancy in the literature should therefore be examined to understand what biological and ecological processes are driving the differences in results. Here, we assess how different factors contribute to fisheries-induced susceptibility to declines in genetic diversity by first focusing on the different roles of genetic markers. Second, we assess how habitat type and conditions contribute to loss of genetic diversity. Third, we assess how life history and physiology affects catchability and loss of genetic diversity. Finally, we discuss how coinciding abiotic and biotic factors influence the intensity of genetic loss. We find a multitude of these factors could be interacting to influence how results are perceived and how intense the loss of genetic diversity can be. Future studies should carefully consider the methodology of genetic analysis used, as well as considerations of life history and ecology of the target species.https://www.mdpi.com/2410-3888/8/10/510genetic diversityfisheriesconservation geneticssize selectionpopulation genetics |
| spellingShingle | Daniel E. Sadler Phillip C. Watts Silva Uusi-Heikkilä The Riddle of How Fisheries Influence Genetic Diversity Fishes genetic diversity fisheries conservation genetics size selection population genetics |
| title | The Riddle of How Fisheries Influence Genetic Diversity |
| title_full | The Riddle of How Fisheries Influence Genetic Diversity |
| title_fullStr | The Riddle of How Fisheries Influence Genetic Diversity |
| title_full_unstemmed | The Riddle of How Fisheries Influence Genetic Diversity |
| title_short | The Riddle of How Fisheries Influence Genetic Diversity |
| title_sort | riddle of how fisheries influence genetic diversity |
| topic | genetic diversity fisheries conservation genetics size selection population genetics |
| url | https://www.mdpi.com/2410-3888/8/10/510 |
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