989 resultados para G7824.B4 1865 .Z5


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Biodiversity of sharks in the tropical Indo-Pacific is high, but species-specific information to assist sustainable resource exploitation is scarce. The null hypothesis of population genetic homogeneity was tested for scalloped hammerhead shark (Sphyrna lewini, n=244) and the milkshark (Rhizoprionodon acutus, n=209) from northern and eastern Australia, using nuclear (S. lewini, eight microsatellite loci; R. acutus, six loci) and mitochondrial gene markers (873 base pairs of NADH dehydrogenase subunit 4). We were unable to reject genetic homogeneity for S. lewini, which was as expected based on previous studies of this species. Less expected were similar results for R. acutus, which is more benthic and less vagile than S. lewini. These features are probably driving the genetic break found between Australian and central Indonesian R. acutus (F-statistics; mtDNA, 0.751 to 0.903; microsatellite loci, 0.038 to 0.047). Our results support the spatially-homogeneous management plan for shark species in Queensland, but caution is advised for species yet to be studied.

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Postcard written to Therese Gottschalk nee Molling at Norderney

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l-r: Thekla Oppenheimer-Benedick, Jenny Oppenheimer-Frank, Fanny Oppenheimer and Adele Oppenheimer-Nathan

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l-r: Sisters Adele Oppenheimer-Nathan, Thekla Oppenheimer-Benedick, Jenny Oppenheimer-Frank and their mother Fanny Oppenheimer

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Therese Molling (1890-1981) is in back row in white dress, to her left is her mother Henny Molling nee Meyerhof (1864-1934), her husband (and Therese's father) Adolf Molling (1865-1921) is posing on the grass in front.

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