Effects of the combination of chitosan and Acinetobacter KU011TH on the growth and health performances and disease resistance of juvenile hybrid catfish (Clarias gariepinus × C. macrocephalus).

Aquatic animal health management has become a crucial component in the goal of increasing catfish aquaculture productivity. Additionally, hybrid catfish (Clarias gariepinus × C. macrocephalus) has been promoted as a highly profitable freshwater fish in Asia.

Co-infection of Piscichlamydia Trichopodus (Order Chlamydiales) and sp. (Myxosporea, Myxobolidae) in Snakeskin Gourami (Regan 1910).

The present study describes a simultaneous infection of a novel -like organism (CLO) with a Myxozoa parasite, sp. in snakeskin gourami in Thailand. A new CLO is proposed " Piscichlamydia trichopodus" (CPT) based on 16S rRNA phylogenetic analysis.

Molt regulation in green and red color morphs of the crab Carcinus maenas: gene expression of molt-inhibiting hormone signaling components.

In decapod crustaceans, regulation of molting is controlled by the X-organ/sinus gland complex in the eyestalks. The complex secretes molt-inhibiting hormone (MIH), which suppresses production of ecdysteroids by the Y-organ (YO). MIH signaling involves nitric oxide and cGMP in the YO, which expresses nitric oxide synthase (NOS) and NO-sensitive guanylyl cyclase (GC-I).