Comparison of the reproductive ecology of two sympatric blacktip sharks (Carcharhinus limbatus and Carcharhinus tilstoni) off north-eastern Australia with species identification inferred from vertebral counts

Precaudal vertebral counts were used to distinguish between 237 morphologically similar Carcharhinus limbatus and Carcharhinus tilstoni and were congruent with differences in reproductive ecology between the species. In addition to differing lengths at maturity and adult body size, the two species had asynchronous parturition, were born at different sizes and the relative frequencies of neonates differed in two coastal nursery areas. Despite evidence that hybridization can occur, these differences suggest the species are largely reproductively isolated.

Reproduction of portrait of Kurt Rosenberg; Hamburg.

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Reproduction of portrait of Kurt Fritz Rosenberg at age four; Hamburg.

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Reproduction of photograph of Kurt Fritz Rosenberg walking among ruins with his camera; Greece.

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Reproduction of photograph of Kaufman and Rosenberg family portrait on the occasion of the wedding of Ludwig Rosenberg and Paula Rosenberg nee Joseph (left); Hamburg.

Includes Ludwig Rosenberg and Paula Rosenberg nee Joseph (left), Thekla (Tekie) Joseph (standing center), Karl Kaufman and Else Kaufman (right)

Reproduction of wedding portrait of Ludwig Rosenberg and Paula Rosenberg nee Joseph; Hamburg.

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Reproduction of portrait of Ludwig Rosenberg; Hamburg.

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Reproduction of portrait of Paula Rosenberg nee Joseph; Tel Aviv.

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Reproduction of portrait of sisters Margarethe and Dorothea Levinson.

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Reproduction of portrait of Dorothea Levinson.

Sister of Margarethe Rosenberg nee Levinson

Reproduction of portrait of Louis Levinson.

Husband of Aurelie Levinson nee Roos who was deported to Riga 6 December 1941

Reproduction of grammar school class portrait including Ella, Beatrice and Rose Herz (circled l-r).

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Reproduction of grammar school class portrait including Fred Herz (front center).

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