A re-appraisal of Harknessia (Diaporthales), and the introduction of Harknessiaceae fam. nov

Harknessiaceae is introduced as a new family in the ascomycete order Diaporthales to accommodate species of Harknessia with their Wuestneia-like teleomorphs. The family is distinguished by having pycnidial conidiomata with brown, furfuraceous margins, brown conidia with hyaline, tube-like basal appendages, longitudinal striations, and rhexolytic secession. Six species occurring on Eucalyptus are newly introduced, namely H. australiensis, H. ellipsoidea, H. pseudohawaiiensis, and H. ravenstreetina from Australia, H. kleinzeeina from South Africa, and H. viterboensis from Italy. Epitypes are designated for H. spermatoidea and H. weresubiae, both also occurring on Eucalyptus. Members of Harknessia are commonly associated with leaf spots, but also occur as saprobes and endophytes in leaves and twigs of various angiosperm hosts.

heilbrunn, karl; heilbrunn friedrich (fritz); heilbrunn julius; osterode harz Portraits Family

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heilbrunn-goldschmict family collection; mother or grandmother of johanna heilbrunn Portraits Women

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left to right:johanna heilbrunnl marcus heilbrunn, karl heilbrunn; osterade / harz Portraits Family

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heilbrunn, karl; heibunn julius; heibrunn fritz Portraits Family

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heilbrunn, karl; heilbrunn , fritz; cousin max Portraits Family

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heilbrunn fritz; heilbrunn julius; unidentified friend; obertal i. harz Portraits Family

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heilbrunn, karl; lieutenant; auant hede ( sister of johanna ); uncke icken; wife of icken ?; heilbrunn, johanna { motherof fritz, julius and karl heilbrunn Portraits Family

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heilbrunn-goldschmidt family collection' ;4 unidentified men; 6 unidentified women; fashion show; osterode Portraits Groups

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goldschmidt, anna; goldschmidt fritz Portraits Family

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goldschmidt anna; goldschmidt fritz; stolzenau Portraits Family

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goldschmidt, max; goldschmidt lotte; goldschmidt fritz; goldschmidt frieda; heilbrunn lotte; goldscmidt anna; simon moses Portraits Family

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goldschmidt frieda; goldschmidt max karl; goldschmidt lotte; stolzenau Portraits Family

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goldschmidt frieda; goldschmidt lloyd Portraits Family

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Environmental and fishing effects on the dynamics of brown tiger prawn (Penaeus esculentus) in Moreton Bay (Australia)

This analysis of the variations of brown tiger prawn (Penaeus esculentus) catch in Moreton Bay multispecies trawl fishery estimated catchability using a delay difference model. It integrated several factors responsible for variations in catchability: targeting of fishing effort, increasing fishing power and changing availability. An analysis of covariance was used to define fishing events targeted at brown tiger prawns. A general linear model estimated inter-annual variations of fishing power. Temperature-induced changes in prawn behaviour played an important role on the dynamics of this fishery. Maximum likelihood estimates of targeted catchability (4.09 ± 0.42 × 10−4 boat-day−1) were twice as large as non-targeted catchability (1.86 ± 0.25 × 10−4 boat-day−1). The causes of recent declines in fishing effort in this fishery were discussed.