Portrait of Arno Nadel holding a copy of Wagner's "Tannhauser"; Hamburg Portraits; Men

Handwritten on verso: "Hamburg den 27 11.17 Sontag"

Towards better management of Australia’s shark fishery: genetic analyses reveal unexpected ratios of cryptic blacktip species Carcharhinus tilstoni and C. limbatus

The common blacktip shark (Carcharhinus limbatus) and the Australian blacktip shark (C. tilstoni) are morphologically similar species that co-occur in subtropical and tropical Australia. In striking contrast to what has been previously reported, we demonstrate that the common blacktip shark is not rare in northern Australia but occurs in approximately equal frequencies with the Australian blacktip shark. Management of shark resources in northern Australia needs to take account of this new information. Species identification was performed using nucleotide sequences of the control, NADH dehydrogenase subunit 4 (ND4) and cytochrome oxidase I (COI) regions in the mitochondrial genome. The proportion of overall genetic variation (FST) between the two species was small (0.042, P < 0.01) based on allele frequencies at five microsatellite loci. We confirm that a third blacktip species (C. amblyrhynchoides, graceful shark) is closely related to C. tilstoni and C. limbatus and can be distinguished from them on the basis of mtDNA sequences from two gene regions. The Australian blacktip shark (C. tilstoni) was not encountered among 20 samples from central Indonesia that were later confirmed to be common blacktip and graceful sharks. Fisheries regulators urgently need new information on life history, population structure and morphological characters for species identification of blacktip shark species in Australia.

Guests at Sophie Oppenheimer's 70th birthday celebration Portraits Groups

Handwritten on verso: (top l-r) Heinz Marcus, Hilde Marcus, Heinz Ascher, Else Stern, Gerhard Ascher, Hattie Wallerstein, Kurt Stern, Paula Stern, Lula Ascher and Hilde Marcus; (second row l-r) Otto Oppenheimer, Heinrich Ascher, Julius Stern, David Wallerstein, Max Marcus, Alex Goldschmidt and Ernst Oppenheimer; (third row l-r) Rose, Hans Oppenheimer, Gertrud Ascher, Oma Oppenheimer, Emma, Martha, Lene, Lucy, Hans, Lore; (front row l-r) Margot Ascher, Heinz Ascher, Golda Ascher, Edith Goldschmidt, Irma Ascher, Lotti Goldschmidt, Gretl Oppenheimer and Ilse Oppenheimer

Outdoor group portrait of Marga Abel, Franzche Wolf, Miss Mahler, Margot Frank and Else Hirschfeld; Bad Kissingen Portraits Groups Women

Handwritten caption: Wir tragen nur Bemberg-Seidenstruempfe! (We wear only Bemberg silk stockings!)

Wedding portrait of Martin and Lotte Lewin Portraits Couples

Handwritten thank you note under photograph signed by Lotte Lewin dated February 6, 1935

Portrait of the Beethoven Maennerchor (Men's Choir) Portraits Groups

Handwritten caption

Portrait of the Beethoven Maennerchor (Men's Choir) outside castle; Heidelberg Portraits Groups

Handwritten caption

Portrait of the Beethoven Maennerchor (Men's Choir); Eisenach Portraits Groups

Handwritten caption

Studio portrait of Hilde Mosse, Marianne Ginsberg (Gilbert) and Rudolf Mosse sitting on a sled Portraits; Children

Verso: Handwritten postcard correspondence dated 1916 January 21

Portrait of Hugo Steiner-Prag.

Handwritten dedication signed Fuer E.F. dated 1930; Signed by photographer lower right

Hedwig Fischer with Tutti and Hilla Portraits Groups

Handwritten dedication: Fuer Paula und Richard Beer-Hofmann in gedanken und die Schoenen Tage von Jaakobs Traum

Olga Schnitzler with toddler girl (Paula Beer-Hofmann or Henni Schnitzler?) Portraits Groups

Handwritten dedication: Der sehr geliebten Paula! Herzlichst Olga

Arrested Jewish men being marched from the synagogue holding a large Jewish star and surrounded by Nazi officers; Baden Baden Concentration Camps Deportations

Handwritten on verso: Baden-Baden marsch von du Synagoge zum Central hotel 1938

Unidentified family dressed in costume; Milan.

Handwritten caption: Mein Bruder Eduard links und Familie in Mailand Italien

New Year's greetings postcard with portrait of Sigmund and Toni Feist with two unidentified boys (perhaps students at Feist's private school in Mainz) Portraits; Groups

Printed: Prosit Neujahr!; Handwritten dedication