A dot-blot immunoassay for the detection of vitellogenin (Vtg) in plasma of adult grey mullet (Mugil cephalus) was developed. The assay identified the sex of the tested fish prior to detectable gonadal development, enabling the establishment of broodstock at the desired ratio of 7:4 females to males. This broodstock was maintained under natural photoperiod, and used to study the relative effect...

a Institut de recherche pour le développement (IRD), UMR5119 ECOSYM, Bat.24 Cc.093, Université Montpellier 2, Place E. Bataillon 34095 Montpellier cedex 5, France b Institute of Oceanography, National Taiwan University, No.1 Sec. 4 Roosevelt Rd. Taipei 10617, Taiwan c Institute of Fisheries Science, National Taiwan University, Taipei 10617, Taiwan d Institute of Biodiversity Science, Fudan Univ...

Ectoparasitic Prototransversotrema steeri Angel infected Acanthopagrus australis (Günther) in western (W. Bay) and southern (S. Bay) Moreton Bay with greatest abundance in winter (June August), and none in summer (December February). This confirms previous observations on seasonality of P. steeri from a small estuary in New South Wales. Transversotrema licinum Manter, which is a new host and ge...

The present study reports on the main parasites found in mullet (Mugil platanus) and their prevalence throughout the year on Uruguayan coasts of the River Plate. The following parasites were found: Ichthyobodo necator, Trichodina sp., Scyphidia sp, Gyrodactylus sp., Dactylogyrus sp., Metamicrocotyla sp., Dicrogaster sp., Phagicola sp. and “Scolex polymorphus”. The viability of mullet (Mugil pla...