Population structure of plaice (Pleuronectes platessa L.) in northern Europe: a comparison of resolving power between microsatellites and mitochondrial DNA data

Hoarau, Galice; Piquet, Anouk M.-T.; Veer, Henk W. van der; Rijnsdorp, A.D.; Stam, Wytze T.; Olsen, Jeanine L.

doi:10.1016/j.seares.2003.12.002

Cited by 72 publications

(76 citation statements)

References 35 publications

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“…In the turbot (Scophthalmus maximus), no genetic differentiation was found between the Atlantic and the North Sea, but highly significant differentiation was found between the Baltic locations and North Sea/ Atlantic locations (Nielsen et al 2004). Similar results were obtained in the European plaice (Pleuronectes platesssa) with the mitochondrial marker (Hoarau et al 2004) and in the cod (Gadus morhua) (Nielsen et al 2001). Other groups of marine organisms that showed strong differentiation between the North Sea and the Baltic Sea include the seagrass Zostera marina (Van Oppen et al 1995;Reusch et al 1999;Olsen et al 2004), the seaweeds Cladophora rupestris (Johansson et al 2003) and Fucus serratus (Coyer et al 2003).…”

Section: Population Differentiationmentioning

confidence: 71%

“…A closer look within the Rajidae, however, reveals that A. radiata travels the farthest-between 1.4 and 3 times as far as R. clavata (Templeman 1984;Walker et al 1997). Until now, little attention has been paid to this difference because mismatches between tagging and genetic studies (Hoarau et al 2004;Chevolot et al 2006a) have been so great that the variance reported within tagging studies was largely discounted. Tagging studies typically encompass a period of a few years (max 4 years), less than a generation (first age at maturity for A. radiata 5-6 years) in Rajidae, whereas genetic studies integrate processes over many generations.…”

Section: Population Differentiationmentioning

confidence: 99%

“…Use of mtDNA has the further advantage that its effective population size (N e ) is four times smaller than nuclear DNA N e due to its haploid nature and generally uniparental inheritance (Birky et al 1989). Thus, the effect of genetic drift is stronger and a higher level of population differentiation can be observed with mtDNA than with nuclear DNA (e.g., Hoarau et al 2004). This can be of great importance in populations that do not reach migration/genetic drift equilibrium, as in such areas where recolonization history is recent.…”

Section: Introductionmentioning

confidence: 99%

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Population structure and historical demography of the thorny skate (Amblyraja radiata, Rajidae) in the North Atlantic

et al. 2006

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Population genetic structure of the thorny skate (Amblyraja radiata) was surveyed in >300 individuals sampled from Newfoundland, Iceland, Norway, the Kattegat and the central North Sea. A 290-bp fragment of the mt cytochrome-b gene was first screened by SSCP. Sequences of SSCP haplotypes revealed 34 haplotypes, 14 of which were unique to Iceland, 3 to Newfoundland, 1 to Norway and 3 to the Kattegat. The global F ST was weak but significant. Removal of the two Kattegat locations, which were the most differentiated, resulted in no significant genetic differentiation. Haplotype diversity was high and evenly distributed across the entire Atlantic (h = 0.8) with the exception of the North Sea (h = 0.48). Statistical parsimony revealed a star-like genealogy with a central widespread haplotype. A subsequent nested clade analysis led to the inference of contiguous expansion with evidence for long distance dispersal between Newfoundland and Iceland. Historical demographic analysis showed that thorny skates have undergone exponential population expansion that started between 1.1 million and 690,000 years ago; and that the Last Glacial Maximum apparently had little effect. These results strongly differ from those of a parallel study of the thornback ray (Raja clavata) in which clear structure and former refugial areas could be identified. Although both species have similar life history traits and overlapping ranges, the continental shelf edge apparently does not present a barrier to migration in A. radiata, as it does for R. clavata.

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Section: Population Differentiationmentioning

confidence: 71%

Section: Population Differentiationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Population structure and historical demography of the thorny skate (Amblyraja radiata, Rajidae) in the North Atlantic

et al. 2006

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“…These two populations are genetically isolated (Hoarau et al 2002b(Hoarau et al , 2004 and thus represent two independent samples. Biweekly sampling was performed in both areas during the settlement season of juvenile plaice using the same type of beam trawl (5 mm mesh).…”

Section: Methodsmentioning

confidence: 99%

“…In Iceland, a 50% decline of the stock has been observed these last 10 years (Anonymous 2003). Two recent genetic surveys of plaice populations in the Northern East Atlantic, based on microsatellite loci (Hoarau et al 2002b) and mitochondrial DNA (Hoarau et al 2004), revealed weak but significant genetic differentiation consistent with large-scale homogeneity and recent recolonization of the North Atlantic over the past 15 000 years. Significant heterozygote deficiencies were also found in these surveys.…”

Section: Introductionmentioning

confidence: 93%

Low effective population size and evidence for inbreeding in an overexploited flatfish, plaice (Pleuronectes platessaL.)

et al. 2005

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Overexploitation and subsequent collapse of major worldwide fisheries has made it clear that marine stocks are not inexhaustible. Unfortunately, the perception remains that marine fishes are resilient to large population reductions, as even a commercially 'collapsed' stock will still consist of millions of individuals. Coupled with this notion is the idea that fisheries can, therefore, have little effect on the genetic diversity of stocks. We used DNA from archived otoliths collected between 1924 and 1972 together with 2002 juvenile's tissue to estimate effective population size (Ne) in plaice (Pleuronectes platessa). Ne was estimated at 20 000 in the North Sea and 2000 in Iceland. These values are five orders of magnitude smaller than the estimated census size for the two locations. Populations examined between 1924 and 1960 were in HardyWeinberg equilibrium, whereas populations examined after approximately 1970 were not. Extensive testing was performed to rule out genotyping artefacts and Wahlund effects. The significant heterozygote deficiencies found from 1970 onward were attributed to inbreeding. The emergence of inbreeding between 1950 and 1970 coincides with the increase in fishing mortality after World War II. Although the biological mechanisms remain speculative, our demonstration of inbreeding signals the need for understanding the social and mating behaviour in commercially important fishes.

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The Planktonic Stages of Flatfishes: Physical and Biological Interactions in Transport Processes

Bailey¹,

Nakata²,

Veer³

2005

Flatfishes

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Population structure of plaice (Pleuronectes platessa L.) in northern Europe: a comparison of resolving power between microsatellites and mitochondrial DNA data

Cited by 72 publications

References 35 publications

Population structure and historical demography of the thorny skate (Amblyraja radiata, Rajidae) in the North Atlantic

Population structure and historical demography of the thorny skate (Amblyraja radiata, Rajidae) in the North Atlantic

Low effective population size and evidence for inbreeding in an overexploited flatfish, plaice (Pleuronectes platessaL.)

The Planktonic Stages of Flatfishes: Physical and Biological Interactions in Transport Processes

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