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Díaz-Arce N, Gagnaire PA, Richardson DE, Walter JF, Arnaud-Haond S, Fromentin JM, Brophy D, Lutcavage M, Addis P, Alemany F, Allman R, Deguara S, Fraile I, Goñi N, Hanke AR, Karakulak FS, Pacicco A, Quattro JM, Rooker JR, Arrizabalaga H, Rodríguez-Ezpeleta N. Unidirectional trans-Atlantic gene flow and a mixed spawning area shape the genetic connectivity of Atlantic bluefin tuna. Mol Ecol 2024; 33:e17188. [PMID: 37921120 DOI: 10.1111/mec.17188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 10/02/2023] [Accepted: 10/19/2023] [Indexed: 11/04/2023]
Abstract
The commercially important Atlantic bluefin tuna (Thunnus thynnus), a large migratory fish, has experienced notable recovery aided by accurate resource assessment and effective fisheries management efforts. Traditionally, this species has been perceived as consisting of eastern and western populations, spawning respectively in the Mediterranean Sea and the Gulf of Mexico, with mixing occurring throughout the Atlantic. However, recent studies have challenged this assumption by revealing weak genetic differentiation and identifying a previously unknown spawning ground in the Slope Sea used by Atlantic bluefin tuna of uncertain origin. To further understand the current and past population structure and connectivity of Atlantic bluefin tuna, we have assembled a unique dataset including thousands of genome-wide single-nucleotide polymorphisms (SNPs) from 500 larvae, young of the year and spawning adult samples covering the three spawning grounds and including individuals of other Thunnus species. Our analyses support two weakly differentiated but demographically connected ancestral populations that interbreed in the Slope Sea. Moreover, we also identified signatures of introgression from albacore (Thunnus alalunga) into the Atlantic bluefin tuna genome, exhibiting varied frequencies across spawning areas, indicating strong gene flow from the Mediterranean Sea towards the Slope Sea. We hypothesize that the observed genetic differentiation may be attributed to increased gene flow caused by a recent intensification of westward migration by the eastern population, which could have implications for the genetic diversity and conservation of western populations. Future conservation efforts should consider these findings to address potential genetic homogenization in the species.
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Affiliation(s)
- Natalia Díaz-Arce
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | | | - David E Richardson
- Northeast Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Narragansett, Rhode Island, USA
| | - John F Walter
- Southeast Fisheries Sciences Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Miami, Florida, USA
| | | | | | - Deirdre Brophy
- Marine and Freshwater Research Center, Atlantic Technological University (ATU), Galway City, Ireland
| | - Molly Lutcavage
- Large Pelagics Research Center, School for the Environment, University of Massachusetts Boston, Gloucester, Massachusetts, USA
| | - Piero Addis
- Department of Environmental and Life Science, University of Cagliari, Cagliari, Italy
| | - Francisco Alemany
- International Commission for the Conservation of Atlantic Tunas, GBYP, Madrid, Spain
| | - Robert Allman
- National Marine Fisheries Service, Southeast Fisheries Science Center, Panama City Laboratory, Panama City, Florida, USA
| | | | - Igaratza Fraile
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Pasaia, Spain
| | - Nicolas Goñi
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Pasaia, Spain
| | - Alex R Hanke
- St Andrews Biological Station, Fisheries and Oceans Canada, St. Andrews, New Brunswick, Canada
| | | | - Ashley Pacicco
- Cooperative Institute for Marine and Atmospheric Studies Rosenstiel School of Marine, Atmospheric and Earth Science, University of Miami, Miami, Florida, USA
| | - Joseph M Quattro
- Department of Biological Sciences, University of South Carolina, Columbia, South Carolina, USA
| | - Jay R Rooker
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, Texas, USA
| | - Haritz Arrizabalaga
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Pasaia, Spain
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2
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Kuciński M, Jakubowska-Lehrmann M, Góra A, Mirny Z, Nadolna-Ałtyn K, Szlinder-Richert J, Ocalewicz K. Population Genetic Study on the European Flounder ( Platichthys flesus) from the Southern Baltic Sea Using SNPs and Microsatellite Markers. Animals (Basel) 2023; 13:ani13091448. [PMID: 37174485 PMCID: PMC10177365 DOI: 10.3390/ani13091448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/14/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
The European flounder (Platichthys flesus), which is closely related to the recently discovered Baltic flounder (Platichthys solemdali), is currently the third most commercially fished species in the Baltic Sea. According to the available data from the Polish Fisheries Monitoring Center and fishermen's observations, the body condition indices of the species in the Baltic Sea have declined in recent years. The aim of the present study was to obtain information on the current patterns of genetic variability and the population structure of the European flounder and to verify whether the Baltic flounder is present in the southern Baltic Sea. Moreover, we aimed to verify whether the observed decline in the body condition indices of the species in the Baltic Sea might be associated with adaptive alterations in its gene pool due to increased fishing pressure. For this purpose, 190 fish were collected from four locations along the central coastline of Poland, i.e., Mechelinki, Władysławowo, the Vistula Lagoon in 2018, and the Słupsk Bank in 2020. The fish were morphologically analyzed and then genetically screened by the application of nineteen microsatellite DNA and two diagnostic SNP markers. The examined European flounder specimens displayed a high level of genetic diversity (PIC = 0.832-0.903, I = 2.579-2.768). A lack of significant genetic differentiation (Fst = 0.004, p > 0.05) was observed in all the examined fish, indicating that the European flounder in the sampled area constitutes a single genetic cluster. A significant deficiency in heterozygotes (Fis = 0.093, p < 0.05) and overall deviations from Hardy-Weinberg expectations (H-WE) were only detected in fish sampled from the Słupsk Bank. The estimated effective population size (Ne) among the sampled fish groups varied from 712 (Słupsk Bank) to 10,115 (Władysławowo and Mechelinki). However, the recorded values of the Garza-Williamson indicator (M = 0.574-0.600) and the lack of significant (p > 0.05) differences in Heq > He under the SMM model did not support the species' population size changes in the past. The applied SNP markers did not detect the presence of the Baltic flounder among the fish sampled from the studied area. The analysis of an association between biological traits and patterns of genetic diversity did not detect any signs of directional selection or density-dependent adaptive changes in the gene pool of the examined fish that might be caused by increased fishing pressure.
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Affiliation(s)
- Marcin Kuciński
- Department of Marine Biology and Ecology, Institute of Oceanography, University of Gdansk, Piłsudskiego Ave. 46, 81-378 Gdynia, Poland
| | - Magdalena Jakubowska-Lehrmann
- Department of Fisheries Oceanography and Marine Ecology, National Marine Fisheries Research Institute, Kołłątaja 1 Street, 81-332 Gdynia, Poland
| | - Agnieszka Góra
- Department of Food and Environmental Chemistry, National Marine Fisheries Research Institute, Kołłątaja 1 Street, 81-332 Gdynia, Poland
| | - Zuzanna Mirny
- Department of Fisheries Resources, National Marine Fisheries Research Institute, Kołłątaja 1 Street, 81-332 Gdynia, Poland
| | - Katarzyna Nadolna-Ałtyn
- Department of Fisheries Resources, National Marine Fisheries Research Institute, Kołłątaja 1 Street, 81-332 Gdynia, Poland
| | - Joanna Szlinder-Richert
- Department of Food and Environmental Chemistry, National Marine Fisheries Research Institute, Kołłątaja 1 Street, 81-332 Gdynia, Poland
| | - Konrad Ocalewicz
- Department of Marine Biology and Ecology, Institute of Oceanography, University of Gdansk, Piłsudskiego Ave. 46, 81-378 Gdynia, Poland
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3
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Pampoulie C, Berg PR, Jentoft S. Hidden but revealed: After years of genetic studies behavioural monitoring combined with genomics uncover new insight into the population dynamics of Atlantic cod in Icelandic waters. Evol Appl 2023; 16:223-233. [PMID: 36793686 PMCID: PMC9923494 DOI: 10.1111/eva.13471] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 05/29/2022] [Accepted: 08/18/2022] [Indexed: 11/27/2022] Open
Abstract
Stock structure is of paramount importance for sustainable management of exploited resources. In that context, genetic markers have been used for more than two decades to resolve spatial structure of marine exploited resources and to fully fathom stock dynamics and interactions. While genetic markers such as allozymes and RFLP dominated the debate in the early era of genetics, technology advances have provided scientists with new tools every decade to better assess stock discrimination and interactions (i.e. gene flow). Here, we provide a review of genetic studies performed to understand stock structure of Atlantic cod in Icelandic waters, from the early allozyme approaches to the genomic work currently carried out. We further highlight the importance of the generation of a chromosome-anchored genome assembly together with whole-genome population data, which drastically changed our perception of the possible management units to consider. After nearly 60 years of genetic investigation of Atlantic cod structure in Icelandic waters, genetic (and later genomic) data combined with behavioural monitoring using Data Storage Tags shifted the attention from geographical population structures to behavioural ecotypes. This review also demonstrates the need for future research to further disentangle the impact of these ecotypes (and gene flow among them) on the population structure of Atlantic cod in Icelandic waters. It also highlights the importance of whole-genome data to unravel unexpected within-species diversity related to chromosomal inversions and associated supergenes, which are important to consider for future development of sustainable management programmes of the species within the North Atlantic.
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Affiliation(s)
| | - Paul Ragnar Berg
- Norwegian Institute for Water Research Oslo Norway.,Department of Natural Sciences, Centre for Coastal Research (CCR) University of Agder Kristiansand Norway
| | - Sissel Jentoft
- Centre for Ecological and Evolutionary Synthesis Oslo Norway
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4
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Jensen MR, Høgslund S, Knudsen SW, Nielsen J, Møller PR, Rysgaard S, Thomsen PF. Distinct latitudinal community patterns of Arctic marine vertebrates along the East Greenlandic coast detected by environmental
DNA. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
| | - Signe Høgslund
- Department of Ecoscience Aarhus University Silkeborg Denmark
| | - Steen Wilhelm Knudsen
- NIVA Denmark Water Research Copenhagen Denmark
- Natural History Museum of Denmark University of Copenhagen Copenhagen Denmark
| | - Julius Nielsen
- Department of Fish and Shellfish Greenland Institute of Natural Resources Nuuk Greenland
| | - Peter Rask Møller
- Natural History Museum of Denmark University of Copenhagen Copenhagen Denmark
- Norwegian College of Fishery Science UiT – The Arctic University of Norway Tromsø Norway
| | - Søren Rysgaard
- Department of Biology, Arctic Research Centre Aarhus University Aarhus Denmark
- Centre for Earth Observation Science, CHR Faculty of Environment Earth and Resources University of Manitoba Winnipeg Manitoba Canada
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5
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Setzke C, Wong C, Russello MA. Genotyping-in-Thousands by sequencing of archival fish scales reveals maintenance of genetic variation following a severe demographic contraction in kokanee salmon. Sci Rep 2021; 11:22798. [PMID: 34815428 PMCID: PMC8611073 DOI: 10.1038/s41598-021-01958-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 11/08/2021] [Indexed: 11/23/2022] Open
Abstract
Historical DNA analysis of archival samples has added new dimensions to population genetic studies, enabling spatiotemporal approaches for reconstructing population history and informing conservation management. Here we tested the efficacy of Genotyping-in-Thousands by sequencing (GT-seq) for collecting targeted single nucleotide polymorphism genotypic data from archival scale samples, and applied this approach to a study of kokanee salmon (Oncorhynchus nerka) in Kluane National Park and Reserve (KNPR; Yukon, Canada) that underwent a severe 12-year population decline followed by a rapid rebound. We genotyped archival scales sampled pre-crash and contemporary fin clips collected post-crash, revealing high coverage (> 90% average genotyping across all individuals) and low genotyping error (< 0.01% within-libraries, 0.60% among-libraries) despite the relatively poor quality of recovered DNA. We observed slight decreases in expected heterozygosity, allelic diversity, and effective population size post-crash, but none were significant, suggesting genetic diversity was retained despite the severe demographic contraction. Genotypic data also revealed the genetic distinctiveness of a now extirpated population just outside of KNPR, revealing biodiversity loss at the northern edge of the species distribution. More broadly, we demonstrated GT-seq as a valuable tool for collecting genome-wide data from archival samples to address basic questions in ecology and evolution, and inform applied research in wildlife conservation and fisheries management.
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Affiliation(s)
- Christopher Setzke
- Department of Biology, University of British Columbia, Okanagan Campus, 3247 University Way, Kelowna, BC, V1V 1V7, Canada
| | - Carmen Wong
- Parks Canada Yukon Field Unit, Suite 205 - 300 Main St, Whitehorse, YT, Y1A 2B5, Canada
| | - Michael A Russello
- Department of Biology, University of British Columbia, Okanagan Campus, 3247 University Way, Kelowna, BC, V1V 1V7, Canada.
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Andrews AJ, Puncher GN, Bernal-Casasola D, Di Natale A, Massari F, Onar V, Toker NY, Hanke A, Pavey SA, Savojardo C, Martelli PL, Casadio R, Cilli E, Morales-Muñiz A, Mantovani B, Tinti F, Cariani A. Ancient DNA SNP-panel data suggests stability in bluefin tuna genetic diversity despite centuries of fluctuating catches in the eastern Atlantic and Mediterranean. Sci Rep 2021; 11:20744. [PMID: 34671077 PMCID: PMC8528830 DOI: 10.1038/s41598-021-99708-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 09/25/2021] [Indexed: 11/10/2022] Open
Abstract
Atlantic bluefin tuna (Thunnus thynnus; BFT) abundance was depleted in the late 20th and early 21st century due to overfishing. Historical catch records further indicate that the abundance of BFT in the Mediterranean has been fluctuating since at least the 16th century. Here we build upon previous work on ancient DNA of BFT in the Mediterranean by comparing contemporary (2009–2012) specimens with archival (1911–1926) and archaeological (2nd century BCE–15th century CE) specimens that represent population states prior to these two major periods of exploitation, respectively. We successfully genotyped and analysed 259 contemporary and 123 historical (91 archival and 32 archaeological) specimens at 92 SNP loci that were selected for their ability to differentiate contemporary populations or their association with core biological functions. We found no evidence of genetic bottlenecks, inbreeding or population restructuring between temporal sample groups that might explain what has driven catch fluctuations since the 16th century. We also detected a putative adaptive response, involving the cytoskeletal protein synemin which may be related to muscle stress. However, these results require further investigation with more extensive genome-wide data to rule out demographic changes due to overfishing, and other natural and anthropogenic factors, in addition to elucidating the adaptive drivers related to these.
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Affiliation(s)
- Adam J Andrews
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Ravenna, Italy. .,Department of Cultural Heritage, University of Bologna, Ravenna, Italy.
| | - Gregory N Puncher
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Ravenna, Italy. .,Department of Biological Sciences, Canadian Rivers Institute, University of New Brunswick, Saint John, NB, Canada.
| | - Darío Bernal-Casasola
- Department of History, Geography and Philosophy, Faculty of Philosophy and Letters, University of Cádiz, Cádiz, Spain
| | | | - Francesco Massari
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Ravenna, Italy
| | - Vedat Onar
- Osteoarcheology Practice and Research Centre and Faculty of Veterinary Medicine, Istanbul University-Cerrahpaşa, Avcılar, Istanbul, Turkey
| | - Nezir Yaşar Toker
- Osteoarcheology Practice and Research Centre and Faculty of Veterinary Medicine, Istanbul University-Cerrahpaşa, Avcılar, Istanbul, Turkey
| | - Alex Hanke
- St. Andrews Biological Station, Fisheries and Oceans Canada, St. Andrews, NB, Canada
| | - Scott A Pavey
- Department of Biological Sciences, Canadian Rivers Institute, University of New Brunswick, Saint John, NB, Canada
| | | | | | - Rita Casadio
- Biocomputing Group, University of Bologna, Bologna, Italy
| | - Elisabetta Cilli
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | | | - Barbara Mantovani
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Fausto Tinti
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Ravenna, Italy
| | - Alessia Cariani
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Ravenna, Italy
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7
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Grønkjaer P, Ottosen R, Joensen T, Reeve L, Nielsen EE, Hedeholm R. Intra-annual variation in feeding of Atlantic cod Gadus morhua: the importance of ephemeral prey bursts. JOURNAL OF FISH BIOLOGY 2020; 97:1507-1519. [PMID: 32875592 DOI: 10.1111/jfb.14520] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 08/07/2020] [Accepted: 08/31/2020] [Indexed: 06/11/2023]
Abstract
Seasonal prey bursts are important for the life cycles and energy budgets of many predators. This study documents the diet and, especially, the importance of the ephemeral occurrence of capelin as prey for Atlantic cod (Gadus morhua) in Godthaabsfjord, west Greenland, over an annual cycle. The cod showed clear differences in diet composition on the 11 sampling dates resulting in a spring-summer, late summer-autumn and winter cluster. Moreover, a single sampling date, 12 May, was defined by cod gorge feeding on spawning capelin, which led to average stomach contents 4.3 times higher than the average for the remaining sampling dates. Changes in nitrogen stable isotope values from 22 April to 7 July in cod liver and muscle tissue were used to calculate the consumption of capelin. Based on this, the consumption of capelin varied between 538 and 658 g wet weight for a 1.3 kg cod. Using published consumption/biomass estimates and observed growth rates, the capelin intake corresponds to 10.1%-33.3% of the annual food consumption and accounts for 28.1%-34.5% of the annual growth of the cod. The present study documents the omnivorous feeding mode of Atlantic cod but highlights the utilization and importance of ephemeral prey bursts for the annual energy budget of the cod. It is hypothesized that access to capelin is critical for the postspawning recovery of Godthaabsfjord cod.
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Affiliation(s)
- Peter Grønkjaer
- Department of Bioscience, Aquatic Biology, Aarhus University, Aarhus, Denmark
| | - Rasmus Ottosen
- Department of Bioscience, Aquatic Biology, Aarhus University, Aarhus, Denmark
| | - Thor Joensen
- Department of Bioscience, Aquatic Biology, Aarhus University, Aarhus, Denmark
| | - Lee Reeve
- Department of Bioscience, Aquatic Biology, Aarhus University, Aarhus, Denmark
| | - Einar E Nielsen
- Institute for Aquatic Resources, Danish Technical University, Silkeborg, Denmark
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8
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Hemmer‐Hansen J, Hüssy K, Baktoft H, Huwer B, Bekkevold D, Haslob H, Herrmann J, Hinrichsen H, Krumme U, Mosegaard H, Nielsen EE, Reusch TBH, Storr‐Paulsen M, Velasco A, von Dewitz B, Dierking J, Eero M. Genetic analyses reveal complex dynamics within a marine fish management area. Evol Appl 2019; 12:830-844. [PMID: 30976313 PMCID: PMC6439499 DOI: 10.1111/eva.12760] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 11/20/2018] [Accepted: 11/29/2018] [Indexed: 01/01/2023] Open
Abstract
Genetic data have great potential for improving fisheries management by identifying the fundamental management units-that is, the biological populations-and their mixing. However, so far, the number of practical cases of marine fisheries management using genetics has been limited. Here, we used Atlantic cod in the Baltic Sea to demonstrate the applicability of genetics to a complex management scenario involving mixing of two genetically divergent populations. Specifically, we addressed several assumptions used in the current assessment of the two populations. Through analysis of 483 single nucleotide polymorphisms (SNPs) distributed across the Atlantic cod genome, we confirmed that a model of mechanical mixing, rather than hybridization and introgression, best explained the pattern of genetic differentiation. Thus, the fishery is best monitored as a mixed-stock fishery. Next, we developed a targeted panel of 39 SNPs with high statistical power for identifying population of origin and analyzed more than 2,000 tissue samples collected between 2011 and 2015 as well as 260 otoliths collected in 2003/2004. These data provided high spatial resolution and allowed us to investigate geographical trends in mixing, to compare patterns for different life stages and to investigate temporal trends in mixing. We found similar geographical trends for the two time points represented by tissue and otolith samples and that a recently implemented geographical management separation of the two populations provided a relatively close match to their distributions. In contrast to the current assumption, we found that patterns of mixing differed between juveniles and adults, a signal likely linked to the different reproductive dynamics of the two populations. Collectively, our data confirm that genetics is an operational tool for complex fisheries management applications. We recommend focussing on developing population assessment models and fisheries management frameworks to capitalize fully on the additional information offered by genetically assisted fisheries monitoring.
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Affiliation(s)
- Jakob Hemmer‐Hansen
- National Institute of Aquatic ResourcesTechnical University of DenmarkSilkeborgDenmark
| | - Karin Hüssy
- National Institute of Aquatic ResourcesTechnical University of DenmarkKgs. LyngbyDenmark
| | - Henrik Baktoft
- National Institute of Aquatic ResourcesTechnical University of DenmarkSilkeborgDenmark
| | - Bastian Huwer
- National Institute of Aquatic ResourcesTechnical University of DenmarkKgs. LyngbyDenmark
| | - Dorte Bekkevold
- National Institute of Aquatic ResourcesTechnical University of DenmarkSilkeborgDenmark
| | | | - Jens‐Peter Herrmann
- Institute of Marine Ecosystem and Fishery ScienceUniversity of HamburgHamburgGermany
| | - Hans‐Harald Hinrichsen
- Evolutionary Ecology of Marine FishesGEOMAR Helmholtz Center for Ocean Research KielKielGermany
| | - Uwe Krumme
- Thünen Institute of Baltic Sea FisheriesRostockGermany
| | - Henrik Mosegaard
- National Institute of Aquatic ResourcesTechnical University of DenmarkKgs. LyngbyDenmark
| | - Einar Eg Nielsen
- National Institute of Aquatic ResourcesTechnical University of DenmarkSilkeborgDenmark
| | - Thorsten B. H. Reusch
- Evolutionary Ecology of Marine FishesGEOMAR Helmholtz Center for Ocean Research KielKielGermany
| | - Marie Storr‐Paulsen
- National Institute of Aquatic ResourcesTechnical University of DenmarkKgs. LyngbyDenmark
| | | | - Burkhard von Dewitz
- Evolutionary Ecology of Marine FishesGEOMAR Helmholtz Center for Ocean Research KielKielGermany
| | - Jan Dierking
- Evolutionary Ecology of Marine FishesGEOMAR Helmholtz Center for Ocean Research KielKielGermany
| | - Margit Eero
- National Institute of Aquatic ResourcesTechnical University of DenmarkKgs. LyngbyDenmark
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9
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Momigliano P, Jokinen H, Calboli F, Aro E, Merilä J. Cryptic temporal changes in stock composition explain the decline of a flounder ( Platichthys spp.) assemblage. Evol Appl 2019; 12:549-559. [PMID: 30828373 PMCID: PMC6383698 DOI: 10.1111/eva.12738] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 10/30/2018] [Accepted: 11/04/2018] [Indexed: 01/15/2023] Open
Abstract
Unobserved diversity, such as undetected genetic structure or the presence of cryptic species, is of concern for the conservation and management of global biodiversity in the face of threatening anthropogenic processes. For instance, unobserved diversity can lead to overestimation of maximum sustainable yields and therefore to overharvesting of the more vulnerable stock components within unrecognized mixed-stock fisheries. We used DNA from archival (otolith) samples to reconstruct the temporal (1976-2011) genetic makeup of two mixed-stock flounder fisheries in the Åland Sea (AS) and the Gulf of Finland (GoF). Both fisheries have hitherto been managed as a single stock of European flounders (Platichthys flesus), but were recently revealed to target two closely related species: the pelagic-spawning P. flesus and the newly described, demersal-spawning P. solemdali. While the AS and GoF fisheries were assumed to consist exclusively of P. solemdali, P. flesus dominated the GoF flounder assemblage (87% of total) in 1983, had disappeared (0%) by 1993, and remained in low proportions (10%-11%) thereafter. In the AS, P. solemdali dominated throughout the sampling period (>70%), and P. flesus remained in very low proportions after 1983. The disappearance of P. flesus from the GoF coincides in time with a dramatic (~60%) decline in commercial landings and worsening environmental conditions in P. flesus' northernmost spawning ground, the Eastern Gotland Basin, in the preceding 4-6 years. These results are compatible with the hypothesis that P. flesus in the GoF is a sink population relying on larval subsidies from southern spawning grounds and the cause of their disappearance is a cessation of larval supply. Our results highlight the importance of uncovering unobserved genetic diversity and studying spatiotemporal changes in the relative contribution of different stock components, as well as the underlying environmental causes, to manage marine resources in the age of rapid anthropogenic change.
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Affiliation(s)
- Paolo Momigliano
- Ecological Genetics Research Unit, Research Program in Organismal and Evolutionary BiologyUniversity of HelsinkiHelsinkiFinland
| | - Henri Jokinen
- Tvärminne Zoological StationUniversity of HelsinkiHankoFinland
| | - Federico Calboli
- Ecological Genetics Research Unit, Research Program in Organismal and Evolutionary BiologyUniversity of HelsinkiHelsinkiFinland
- Department of BiologyUniversity of LeuvenLeuvenBelgium
| | - Eero Aro
- Finnish Game and Fisheries Research InstituteHelsinkiFinland
- Present address:
Puolipäivänkatu 4 A 6, FI‐00160HelsinkiFinland
| | - Juha Merilä
- Ecological Genetics Research Unit, Research Program in Organismal and Evolutionary BiologyUniversity of HelsinkiHelsinkiFinland
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10
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Knutsen H, Jorde PE, Hutchings JA, Hemmer‐Hansen J, Grønkjær P, Jørgensen KM, André C, Sodeland M, Albretsen J, Olsen EM. Stable coexistence of genetically divergent Atlantic cod ecotypes at multiple spatial scales. Evol Appl 2018; 11:1527-1539. [PMID: 30344625 PMCID: PMC6183466 DOI: 10.1111/eva.12640] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 03/09/2018] [Indexed: 12/15/2022] Open
Abstract
Coexistence in the same habitat of closely related yet genetically different populations is a phenomenon that challenges our understanding of local population structure and adaptation. Identifying the underlying mechanisms for such coexistence can yield new insight into adaptive evolution, diversification and the potential for organisms to adapt and persist in response to a changing environment. Recent studies have documented cryptic, sympatric populations of Atlantic cod (Gadus morhua) in coastal areas. We analysed genetic origin of 6,483 individual cod sampled annually over 14 years from 125 locations along the Norwegian Skagerrak coast and document stable coexistence of two genetically divergent Atlantic cod ecotypes throughout the study area and study period. A "fjord" ecotype dominated in numbers deep inside fjords while a "North Sea" ecotype was the only type found in offshore North Sea. Both ecotypes coexisted in similar proportions throughout coastal habitats at all spatial scales. The size-at-age of the North Sea ecotype on average exceeded that of the fjord ecotype by 20% in length and 80% in weight across all habitats. Different growth and size among individuals of the two types might be one of several ecologically significant variables that allow for stable coexistence of closely related populations within the same habitat. Management plans, biodiversity initiatives and other mitigation strategies that do not account for the mixture of species ecotypes are unlikely to meet objectives related to the sustainability of fish and fisheries.
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Affiliation(s)
- Halvor Knutsen
- Institute of Marine ResearchFlødevigenHisNorway
- Department of BiosciencesCentre for Ecological and Evolutionary Synthesis (CEES)University of OsloBlindernOsloNorway
- Centre for Coastal ResearchUniversity of AgderKristiansandNorway
| | - Per Erik Jorde
- Institute of Marine ResearchFlødevigenHisNorway
- Department of BiosciencesCentre for Ecological and Evolutionary Synthesis (CEES)University of OsloBlindernOsloNorway
| | - Jeffrey A. Hutchings
- Institute of Marine ResearchFlødevigenHisNorway
- Department of BiosciencesCentre for Ecological and Evolutionary Synthesis (CEES)University of OsloBlindernOsloNorway
- Department of BiologyDalhousie UniversityHalifaxNSCanada
| | - Jakob Hemmer‐Hansen
- Section for Marine Living ResourcesNational Institute of Aquatic ResourcesTechnical University of DenmarkSilkeborgDenmark
| | - Peter Grønkjær
- Department for BioscienceAarhus UniversityAquatic BiologyAarhusDenmark
| | | | - Carl André
- Department of Marine Sciences – TjärnöUniversity of GothenburgStrömstadSweden
| | - Marte Sodeland
- Centre for Coastal ResearchUniversity of AgderKristiansandNorway
| | | | - Esben M. Olsen
- Institute of Marine ResearchFlødevigenHisNorway
- Centre for Coastal ResearchUniversity of AgderKristiansandNorway
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11
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Bentzen P, Bradbury IR. Don't bet against the natal homing abilities of marine fishes. Mol Ecol 2017; 25:2691-2. [PMID: 27306459 DOI: 10.1111/mec.13591] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 02/12/2016] [Indexed: 11/26/2022]
Abstract
Whether marine fishes are capable of homing to their natal areas has long been something of an enigma. For some estuarine species or sharks (which have extended nondispersal juvenile stages or are born as relatively large, fully formed juveniles), the answer is clearly 'yes' (Thorrold et al. ; Feldheim et al. ), but for most marine fishes, the issue is much more mysterious. Many species have free-floating eggs, and most have pelagic, passively dispersing larvae. It is challenging to imagine how adult fish might navigate to a region of the ocean they experienced only as eggs or larvae, and easier to assume that such dispersal leads inexorably to high gene flow, and even panmixia. One way to resolve the conundrum would be to track fish from hatching to reproduction, but for marine fishes with tiny eggs and drifting larvae, this is notoriously difficult to do (Bradbury & Laurel ). In this issue of Molecular Ecology, Bonanomi et al. () use a creative approach to solve this challenge for Atlantic cod (Gadus morhua) populations that mingle in the vicinity of Greenland. They show that cod that disperse more than a 1000 km away from Iceland as eggs and larvae, then spend years growing on the far side of Greenland, while mixing with two local populations, return as adults to spawning areas near Iceland - and further, that this behaviour has remained stable over more than six decades. They manage this feat with a clever use of historical cod tracking data, modern genomic data and genetic analysis of decades-old DNA obtained from archived materials. Their results have important implications for our view of the biocomplexity of marine fish populations, and how we should manage them.
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Affiliation(s)
- Paul Bentzen
- Marine Gene Probe Laboratory, Department of Biology, Dalhousie University, 1355 Oxford Street, Halifax, NS, Canada, B3H 4R2
| | - Ian R Bradbury
- Salmonids Section, Science Branch, Department of Fisheries and Oceans Canada, 80 East White Hills Road, St. John's, NF, Canada, A1C 5X1
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12
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Barth JMI, Berg PR, Jonsson PR, Bonanomi S, Corell H, Hemmer-Hansen J, Jakobsen KS, Johannesson K, Jorde PE, Knutsen H, Moksnes PO, Star B, Stenseth NC, Svedäng H, Jentoft S, André C. Genome architecture enables local adaptation of Atlantic cod despite high connectivity. Mol Ecol 2017. [DOI: 10.1111/mec.14207] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Julia M. I. Barth
- Department of Biosciences; Centre for Ecological and Evolutionary Synthesis (CEES); University of Oslo; Oslo Norway
| | - Paul R. Berg
- Department of Biosciences; Centre for Ecological and Evolutionary Synthesis (CEES); University of Oslo; Oslo Norway
- Faculty of Medicine; Centre for Molecular Medicine Norway (NCMM); University of Oslo; Oslo Norway
| | - Per R. Jonsson
- Department of Marine Sciences - Tjärnö; University of Gothenburg; Strömstad Sweden
| | - Sara Bonanomi
- Section for Marine Living Resources; National Institute of Aquatic Resources; Technical University of Denmark; Silkeborg Denmark
- National Research Council (CNR); Fisheries Section; Institute of Marine Sciences (ISMAR); Ancona Italy
| | - Hanna Corell
- Department of Marine Sciences - Tjärnö; University of Gothenburg; Strömstad Sweden
| | - Jakob Hemmer-Hansen
- Section for Marine Living Resources; National Institute of Aquatic Resources; Technical University of Denmark; Silkeborg Denmark
| | - Kjetill S. Jakobsen
- Department of Biosciences; Centre for Ecological and Evolutionary Synthesis (CEES); University of Oslo; Oslo Norway
| | - Kerstin Johannesson
- Department of Marine Sciences - Tjärnö; University of Gothenburg; Strömstad Sweden
| | - Per Erik Jorde
- Department of Biosciences; Centre for Ecological and Evolutionary Synthesis (CEES); University of Oslo; Oslo Norway
| | - Halvor Knutsen
- Department of Biosciences; Centre for Ecological and Evolutionary Synthesis (CEES); University of Oslo; Oslo Norway
- Institute of Marine Research; Flødevigen; His Norway
- Department of Natural Sciences; Centre for Coastal Research; University of Agder; Kristiansand Norway
| | - Per-Olav Moksnes
- Department of Marine Sciences; University of Gothenburg; Gothenburg Sweden
| | - Bastiaan Star
- Department of Biosciences; Centre for Ecological and Evolutionary Synthesis (CEES); University of Oslo; Oslo Norway
| | - Nils Chr. Stenseth
- Department of Biosciences; Centre for Ecological and Evolutionary Synthesis (CEES); University of Oslo; Oslo Norway
- Department of Natural Sciences; Centre for Coastal Research; University of Agder; Kristiansand Norway
| | - Henrik Svedäng
- Swedish Institute for the Marine Environment (SIME); Gothenburg Sweden
| | - Sissel Jentoft
- Department of Biosciences; Centre for Ecological and Evolutionary Synthesis (CEES); University of Oslo; Oslo Norway
- Department of Natural Sciences; Centre for Coastal Research; University of Agder; Kristiansand Norway
| | - Carl André
- Department of Marine Sciences - Tjärnö; University of Gothenburg; Strömstad Sweden
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13
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Savary R, Dufresnes C, Champigneulle A, Caudron A, Dubey S, Perrin N, Fumagalli L. Stocking activities for the Arctic charr in Lake Geneva: Genetic effects in space and time. Ecol Evol 2017; 7:5201-5211. [PMID: 28770060 PMCID: PMC5528235 DOI: 10.1002/ece3.3073] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 04/25/2017] [Accepted: 04/27/2017] [Indexed: 01/19/2023] Open
Abstract
Artificial stocking practices are widely used by resource managers worldwide, in order to sustain fish populations exploited by both recreational and commercial activities, but their benefits are controversial. Former practices involved exotic strains, although current programs rather consider artificial breeding of local fishes (supportive breeding). Understanding the complex genetic effects of these management strategies is an important challenge with economic and conservation implications, especially in the context of population declines. In this study, we focus on the declining Arctic charr (Salvelinus alpinus) population from Lake Geneva (Switzerland and France), which has initially been restocked with allochtonous fishes in the early eighties, followed by supportive breeding. In this context, we conducted a genetic survey to document the evolution of the genetic diversity and structure throughout the last 50 years, before and after the initiation of hatchery supplementation, using contemporary and historical samples. We show that the introduction of exotic fishes was associated with a genetic bottleneck in the 1980-1990s, a break of Hardy-Weinberg Equilibrium (HWE), a reduction in genetic diversity, an increase in genetic structure among spawning sites, and a change in their genetic composition. Together with better environmental conditions, three decades of subsequent supportive breeding using local fishes allowed to re-establish HWE and the initial levels of genetic variation. However, current spawning sites have not fully recovered their original genetic composition and were extensively homogenized across the lake. Our study demonstrates the drastic genetic consequences of different restocking tactics in a comprehensive spatiotemporal framework and suggests that genetic alteration by nonlocal stocking may be partly reversible through supportive breeding. We recommend that conservation-based programs consider local diversity and implement adequate protocols to limit the genetic homogenization of this Arctic charr population.
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Affiliation(s)
- Romain Savary
- Laboratory for Conservation Biology Department of Ecology and Evolution Biophore University of Lausanne Lausanne Switzerland
| | - Christophe Dufresnes
- Laboratory for Conservation Biology Department of Ecology and Evolution Biophore University of Lausanne Lausanne Switzerland
| | | | - Arnaud Caudron
- UMR CARRTEL INRA-Université de Savoie Mont Blanc Thonon-les-Bains Cedex France.,Science-Management Interface for Biodiversity Conservation Thonon-les-Bains France
| | - Sylvain Dubey
- Laboratory for Conservation Biology Department of Ecology and Evolution Biophore University of Lausanne Lausanne Switzerland.,Hintermann & Weber SA Montreux Switzerland
| | - Nicolas Perrin
- Laboratory for Conservation Biology Department of Ecology and Evolution Biophore University of Lausanne Lausanne Switzerland
| | - Luca Fumagalli
- Laboratory for Conservation Biology Department of Ecology and Evolution Biophore University of Lausanne Lausanne Switzerland
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14
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Garcia-Mayoral E, Olsen M, Hedeholm R, Post S, Nielsen EE, Bekkevold D. Genetic structure of West Greenland populations of lumpfish Cyclopterus lumpus. JOURNAL OF FISH BIOLOGY 2016; 89:2625-2642. [PMID: 27753091 DOI: 10.1111/jfb.13167] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 09/06/2016] [Indexed: 06/06/2023]
Abstract
In this study, 11 microsatellite markers were used to determine the structure of West Greenlandic lumpfish Cyclopterus lumpus populations across six spawning locations spanning >1500 km and compared with neighbouring populations in Canada and Iceland. To evaluate whether data allow for identification of origin of C. lumpus in Greenlandic waters, genetic assignment analysis was performed for 86 C. lumpus sampled on a feeding migration. Significant structuring with isolation by distance was observed in the West Greenland samples and two major subpopulations, north and south, were suggested. Based on FST values, closer relationships were observed between Greenland and Canada, than Greenland and Iceland. Surprisingly, the North Greenland population showed more similarities with Canadian samples, than did the geographically closer south-west Greenland population. Origin could be assigned for a high proportion of non-spawning fish and demonstrated a marked east-west spatial separation of fish of Greenlandic and Icelandic genotypes.
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Affiliation(s)
- E Garcia-Mayoral
- Danish Technical University, National Institue for Aquatic Resources, Vejlsøvej 39, 8600, Silkeborg, Denmark
| | - M Olsen
- Greenland Institute of Natural Resources, Kivioq 2, 3900, Nuuk, Greenland
| | - R Hedeholm
- Greenland Institute of Natural Resources, Kivioq 2, 3900, Nuuk, Greenland
| | - S Post
- Greenland Institute of Natural Resources, Kivioq 2, 3900, Nuuk, Greenland
| | - E E Nielsen
- Danish Technical University, National Institue for Aquatic Resources, Vejlsøvej 39, 8600, Silkeborg, Denmark
| | - D Bekkevold
- Danish Technical University, National Institue for Aquatic Resources, Vejlsøvej 39, 8600, Silkeborg, Denmark
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15
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Riginos C, Crandall ED, Liggins L, Bongaerts P, Treml EA. Navigating the currents of seascape genomics: how spatial analyses can augment population genomic studies. Curr Zool 2016; 62:581-601. [PMID: 29491947 PMCID: PMC5804261 DOI: 10.1093/cz/zow067] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Accepted: 05/25/2016] [Indexed: 11/21/2022] Open
Abstract
Population genomic approaches are making rapid inroads in the study of non-model organisms, including marine taxa. To date, these marine studies have predominantly focused on rudimentary metrics describing the spatial and environmental context of their study region (e.g., geographical distance, average sea surface temperature, average salinity). We contend that a more nuanced and considered approach to quantifying seascape dynamics and patterns can strengthen population genomic investigations and help identify spatial, temporal, and environmental factors associated with differing selective regimes or demographic histories. Nevertheless, approaches for quantifying marine landscapes are complicated. Characteristic features of the marine environment, including pelagic living in flowing water (experienced by most marine taxa at some point in their life cycle), require a well-designed spatial-temporal sampling strategy and analysis. Many genetic summary statistics used to describe populations may be inappropriate for marine species with large population sizes, large species ranges, stochastic recruitment, and asymmetrical gene flow. Finally, statistical approaches for testing associations between seascapes and population genomic patterns are still maturing with no single approach able to capture all relevant considerations. None of these issues are completely unique to marine systems and therefore similar issues and solutions will be shared for many organisms regardless of habitat. Here, we outline goals and spatial approaches for landscape genomics with an emphasis on marine systems and review the growing empirical literature on seascape genomics. We review established tools and approaches and highlight promising new strategies to overcome select issues including a strategy to spatially optimize sampling. Despite the many challenges, we argue that marine systems may be especially well suited for identifying candidate genomic regions under environmentally mediated selection and that seascape genomic approaches are especially useful for identifying robust locus-by-environment associations.
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Affiliation(s)
- Cynthia Riginos
- School of Biological Sciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Eric D. Crandall
- Division of Science and Environmental Policy, California State University, Seaside, CA 93955, USA
| | - Libby Liggins
- Institute of Natural and Mathematical Sciences, Massey University, Auckland 0745, New Zealand
| | - Pim Bongaerts
- Global Change Institute, The University of Queensland, QLD 4072, St Lucia, Australia
| | - Eric A. Treml
- School of BioSciences, The University of Melbourne, VIC, 3010, Australia
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16
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Valenzuela-Quiñonez F. How fisheries management can benefit from genomics? Brief Funct Genomics 2016; 15:352-7. [DOI: 10.1093/bfgp/elw006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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17
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Ruggeri P, Splendiani A, Di Muri C, Fioravanti T, Santojanni A, Leonori I, De Felice A, Biagiotti I, Carpi P, Arneri E, Nisi Cerioni P, Giovannotti M, Caputo Barucchi V. Coupling Demographic and Genetic Variability from Archived Collections of European Anchovy (Engraulis encrasicolus). PLoS One 2016; 11:e0151507. [PMID: 26982808 PMCID: PMC4794184 DOI: 10.1371/journal.pone.0151507] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 02/29/2016] [Indexed: 11/18/2022] Open
Abstract
It is well known that temporal fluctuations in small populations deeply influence evolutionary potential. Less well known is whether fluctuations can influence the evolutionary potentials of species with large census sizes. Here, we estimated genetic population parameters from as survey of polymorphic microsatellite DNA loci in archived otoliths from Adriatic European anchovy (Engraulis encrasicolus), a fish with large census sizes that supports numerous local fisheries. Stocks have fluctuated greatly over the past few decades, and the Adriatic fishery collapsed in 1987. Our results show a significant reduction of mean genetic parameters as a consequence of the population collapse. In addition, estimates of effective population size (Ne) are much smaller than those expected in a fishes with large population census sizes (Nc). Estimates of Ne indicate low effective population sizes, even before the population collapse. The ratio Ne/Ne ranged between 10-6 and 10-8, indicating a large discrepancy between the anchovy gene pool and population census size. Therefore, anchovy populations may be more vulnerable to fishery effort and environmental change than previously thought.
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Affiliation(s)
- Paolo Ruggeri
- Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Andrea Splendiani
- Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Cristina Di Muri
- Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Tatiana Fioravanti
- Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Alberto Santojanni
- Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine Sezione Pesca Marittima, Largo Fiera della Pesca, 60125 Ancona, Italy
| | - Iole Leonori
- Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine Sezione Pesca Marittima, Largo Fiera della Pesca, 60125 Ancona, Italy
| | - Andrea De Felice
- Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine Sezione Pesca Marittima, Largo Fiera della Pesca, 60125 Ancona, Italy
| | - Ilaria Biagiotti
- Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine Sezione Pesca Marittima, Largo Fiera della Pesca, 60125 Ancona, Italy
| | - Piera Carpi
- Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine Sezione Pesca Marittima, Largo Fiera della Pesca, 60125 Ancona, Italy
| | - Enrico Arneri
- FAO-FIRF, Fisheries and Aquaculture Department, AdriaMed Project, Viale delle Terme di Caracalla, 00153 Roma, Italy
| | - Paola Nisi Cerioni
- Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Massimo Giovannotti
- Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Vincenzo Caputo Barucchi
- Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
- Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine Sezione Pesca Marittima, Largo Fiera della Pesca, 60125 Ancona, Italy
- * E-mail:
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18
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Bonanomi S, Overgaard Therkildsen N, Retzel A, Berg Hedeholm R, Pedersen MW, Meldrup D, Pampoulie C, Hemmer-Hansen J, Grønkjaer P, Nielsen EE. Historical DNA documents long-distance natal homing in marine fish. Mol Ecol 2016; 25:2727-34. [PMID: 26859133 DOI: 10.1111/mec.13580] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 12/07/2015] [Accepted: 12/21/2015] [Indexed: 01/27/2023]
Abstract
The occurrence of natal homing in marine fish remains a fundamental question in fish ecology as its unequivocal demonstration requires tracking of individuals from fertilization to reproduction. Here, we provide evidence of long-distance natal homing (>1000 km) over more than 60 years in Atlantic cod (Gadus morhua), through genetic analysis of archived samples from marked and recaptured individuals. Using a high differentiation single-nucleotide polymorphism assay, we demonstrate that the vast majority of cod tagged in West Greenland and recaptured on Icelandic spawning grounds belonged to the Iceland offshore population, strongly supporting a hypothesis of homing. The high degree of natal fidelity observed provides the evolutionary settings for development of locally adapted populations in marine fish and emphasize the need to consider portfolio effects in marine fisheries management strategies.
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Affiliation(s)
- Sara Bonanomi
- Section for Marine Living Resources, National Institute of Aquatic Resources, Technical University of Denmark, Vejlsøvej 39, 8600, Silkeborg, Denmark.,Greenland Climate Research Centre, Greenland Institute of Natural Resources, Kivioq 2, PO Box 570, 3900, Nuuk, Greenland
| | - Nina Overgaard Therkildsen
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, Kivioq 2, PO Box 570, 3900, Nuuk, Greenland.,Hopkins Marine Station, Department of Biology, Stanford University, 120 Oceanview Blvd, Pacific Grove, CA, 93950, USA
| | - Anja Retzel
- Greenland Institute of Natural Resources, Kivioq 2, PO Box 570, 3900, Nuuk, Greenland
| | - Rasmus Berg Hedeholm
- Greenland Institute of Natural Resources, Kivioq 2, PO Box 570, 3900, Nuuk, Greenland
| | - Martin Waever Pedersen
- Section for Marine Living Resources, National Institute of Aquatic Resources, Technical University of Denmark, Jaegersborg Allé 1, 2920, Charlottenlund, Denmark
| | - Dorte Meldrup
- Section for Marine Living Resources, National Institute of Aquatic Resources, Technical University of Denmark, Vejlsøvej 39, 8600, Silkeborg, Denmark
| | | | - Jakob Hemmer-Hansen
- Section for Marine Living Resources, National Institute of Aquatic Resources, Technical University of Denmark, Vejlsøvej 39, 8600, Silkeborg, Denmark
| | - Peter Grønkjaer
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, Kivioq 2, PO Box 570, 3900, Nuuk, Greenland.,Department of Bioscience, Aarhus University, Ole Worms Allé 1, 8000, Aarhus, Denmark
| | - Einar Eg Nielsen
- Section for Marine Living Resources, National Institute of Aquatic Resources, Technical University of Denmark, Vejlsøvej 39, 8600, Silkeborg, Denmark.,Greenland Climate Research Centre, Greenland Institute of Natural Resources, Kivioq 2, PO Box 570, 3900, Nuuk, Greenland
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