We explore the use of a class of random probability measures, which we refer to as the Q class, for Bayesian nonparametric mixture modeling. This class of processes encompasses both the normalised generalised gamma and the two-parameter Poisson-Dirichlet processes allowing us to comparatively study the inferential advantages of these two processes. We propose novel marginal and conditional char...

The demand for farm-raised channel catfish (Ictalurus punctatus) has grown tremendously in recent years due to year round availability, consistent quality, and healthy attributes of catfish. In 1993, over 459 million tons of catfish were produced in the United States (Anon., 1994). As this industry has grown, so has the amount of offal, trimmings, and other solid waste generated and the need to...

Herein, we isolated the pathogenic strain ZZ051 from hemorrhagic channel catfish (Ictalurus punctatus). Physiological and biochemical identification, 16S rRNA gene sequence analysis, MALDI-TOF-MS showed that was Aeromonas veronii. After artificial infection, diseased fish symptoms similar to natural disease, characteristics of bacteria reisolated tissues were same as those original indicating p...

Absfrucf.-To determine whether the embryonic period of channel catfish lcfalurus punctntus could be extended at low temperatures, fertilized channel catfish eggs were incubated at five constant water temperatures: 4, I I . 16. 21, and 26 C. Low-temperature incubation of catfish eggs extended the embryonic period at 16 (244%) and 21 C (56%) when compared to the control hatchery incubation temper...

Being ectothermic, fish body temperature generally depends on ambient water temperature. Thus, ambient temperature might affect various sensory systems, including hearing, as a result of metabolic and physiological processes. However, the maintenance of sensory functions in a changing environment may be crucial for an animal's survival. Many fish species rely on hearing for acoustic orientation...