Tilapia in Australia – Development of management strategies for the control and eradication of feral tilapia populations in Australia

This report presents a culmination of different research projects on two species of tilapia (Oreochromis mossambicus and Tilapia mariae) and provides recommendations for the future management and research of these pest fish. Feral populations of O. mossambicus and T. mariae are now widely distributed in tropical northeastern Queensland, with O. mossambicus also occurring in southeastern Queensland and river systems of Western Australia. O. mossambicus is known to have existed in impoundments in southeastern Queensland, as well as urban drains and ornamental ponds in the Townsville region of north Queensland from about the late 1970s, while T. mariae became established in some easternflowing tropical streams by the early 1990s. In Australia, feral stocks of tilapia are widely regarded as pests that potentially threaten both native fish stocks and biodiversity.

Ruth Augusta Beatrice Goldschmidt; Berlin Portraits Children

Born 1923?

Passport portrait of Ruth Augusta Beatrice Goldschmidt Portraits Children

Born 1923?

Henry H. Goldschmidt Gould standing outdoors Portraits Children

Born July 15, 1914, died August 6, 1978

Henry H. Goldschmidt Gould (top row fourth from right) with unidentified school classmates Portraits Children

Born July 15, 1914, died August 6, 1978

Portrait of Gertrud (Trude) Guttmann Portraits Children

Born September 8, 1905, worked in a Jewish orphanage in Berlin and was deported to Auschwitz May 17, 1943, where she died.

Henry Marx shining shoes to earn money for his family; Washington Heights, New York Portraits Children

Henry Marx was born in Michelstadt/Hessen and emigrated to New York with his family in early 1937 when he was nine years old. He went to school but also delivered newspapers and shined shoes to help his family financially as his father only worked whatever odd jobs he could during the war years. Going from store to store shining shoes on weekends was Henry's main source of income. He had to wake up early in order to reserve the spot shown in this photograph, competing with a father and two sons who traveled from Brooklyn to Washington Heights to shine shoes.

Studio portrait of Friedel and Johanna Fuld; Worms Portraits Children

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Studio portrait of Erich Gustav Baum as a young boy Portraits Children

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Grete Dublon (left) with an unidentified friend Portraits Children

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Interior view of the synagogue where David Dublon was cantor or rabbi with some of the children in the congregation; Dülmen, Germany Synagogues; Interior

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Fanny and Hugo Eichenwald with two of their three children, Fritz and Hanne outside of their home; Rheine Portraits; Family

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The three Eichenwald children, Fritz, Hanne and Hans Portraits; Family

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