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Faust, Ellika; Andre, Carl; Meurling, Sara; Kochmann, Judith; Christiansen, Henrik; Jensen, Lasse Fast; Charrier, Gregory; Laugen, Ane T.; Strand, Asa. |
Identifying the routes and rates of introductions is fundamental for the understanding of marine invasions. Recurring introductions over the last 50 yr have led to the establishment of feral Pacific oyster Crassostrea gigas populations throughout Europe. In the northern countries, Sweden and Norway, the species first occurred in large numbers in 2006. Here, we investigated the relative importance of introduction via re-laying of cultured oysters imported for consumption from France, Ireland or the Netherlands, and dispersal of oyster larvae by ocean currents from wild oyster populations in Denmark. Using microsatellite DNA markers, we estimated genetic differentiation among Pacific oysters collected at 4 Swedish locations, 3 Norwegian locations and 9... |
Tipo: Text |
Palavras-chave: Population genetics; Microsatellites; Range expansion; Non-native species; Aquaculture; Connectivity; Scandinavia; Skagerrak. |
Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00395/50627/72574.pdf |
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Kano, Yasunori; Chikyu, Eri; Waren, Anders. |
Adeuomphalus Seguenza, 1876 is a little known genus among the skeneimorph vetigastropods, with very few specimens previously reported alive from the deep sea. We examined newly collected and museum-stored specimens from upper to lower bathyal depths in the Atlantic, Mediterranean, Pacific and Indian Oceans and recognize seven recent species in the genus: A. ammoniformis Seguenza, 1876, A. densicostatus (Jeffreys, 1884), A. trochanter Waren & Bouchet, 2001, A. sinuosus (Sykes, 1925) n. comb., A. guillei n. sp., A. elegans n. sp. and A. collinsi n. sp., along with a fossil species, A. bandeli (Schroder, 1995) from the Lower Cretaceous, Poland. These species are characterized by a minute and colourless shell with almost perfectly planispiral whorls, an... |
Tipo: Text |
Palavras-chave: Hydrothermal vents; Seguenziidae mollusca; New Zealand; Gastropoda; Trochoidea; Phylogeny; Pacific; Scandinavia; Turbinidae. |
Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00205/31660/30092.pdf |
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