*School of Biology, Georgia Institute of Technology, Atlanta, Georgia 30332, U.S.A., ‡Department of Biological Sciences and Merriam Powell Center for Environmental Research, Northern Arizona University, Flagstaff, Arizona 86011, U.S.A., §Section of Integrative Biology and Texas Memorial Museum, University of Texas, Texas Natural History Collections, Austin, Texas, 78758, U.S.A., {University of ...

DOMITROVIC, H. A. 2000. Melanomacrophage centers in liver, spleen and kidney of Cichlasoma dimerus (Pisces, Cichlidae): histology and modifications in relation to sanitary and environmental conditions. Rev. Ictiol. 8(1/2):9–18. The histological characteristics of the melanomacrophage centers are described in liver, spleen and kidney of Cichlasoma dimerus, with a comparative analysis of the dens...

The infection, known as yellow spot disease, produced by metacercariae of Clinostomum spp. was studied in fishes of the Taquari river, located in Jataizinho, Paraná State, Brazil. A total of 1,582 specimens, belonging to 36 species, were collected between March 1999 and April 2001. Yellow spot disease was observed only in Gymnotus carapo Linnaeus, 1814 (Gymnotiformes, Gymnotidae) and Cichlasoma...

Three hitherto unknown oxyuroid nematode species of the family Pharyngodonidae are described from the intestine of South American freshwater fishes, two of them being established as species new to science: Spinoxyuris annulata sp. n. from Myleus ternetzi (Norman) (Serrasalmidae) from French Guiana (Sinnamary River) and Ichthyouris ovifilamentosa sp. n. from Cichlasoma sp. (Cichlidae) from Amazo...

Herichthys minckleyi is an endangered, trophically polymorphic cichlid endemic to the Cuatro Ciénegas basin of Coahuila, Mexico. A molariform morph has stout pharyngeal teeth whereas a papilliform morph has numerous fine pharyngeal teeth. Individuals with intermediate pharyngeal dentition also exist, as does yet another morph, called piscivore. Previous studies indicated that morphs utilize dif...

The preparation process of protein enzymolysis technology for the three-spot seahorse (Hippocampus trimaculatus Leach) degreased bone meal was developed. Two enzymes with better enzymolysis effect were selected from the five proteases, and the optimization condition of the Alkaline Protease is temperature - 54.7°C, pH - 9, duration of 6 h, the acquired rate of polypeptides was 11.77%; and that ...