The lectin pathway of complement is considered to be the most ancient complement pathway as inferred from identification of ancient homologs of mannose-binding lectin (MBL) and MBL-associated serine proteases (MASPs) in some invertebrates. MBL homologs with galactose selectivity and an MASP3-like sequence also occur in bony fish, linking the evolution of the lectin complement pathway from inver...

In the present study, we reported infection with eighteen species of the genus Dactylogyrus, belong to thefamily Dactylogyridae from five breeder fish species, including common carp (Cyprinus carpio), grass carp(Ctenopharyngodon idella), silver carp (Hypophthalmichthys molitrix), big head carp (Hypophthalmichthysnobilis) and black carp (Myelopharyngodon piceus) which introduced and imported to ...

The study of development has relied primarily on the isolation of mutations in genes with specific functions in development and on the comparison of their expression patterns in normal and mutant phenotypes. Comparative evolutionary analyses can complement these approaches. Phylogenetic analyses of Sonic hedgehog (Shh) and Hoxd-10 genes from 18 cyprinid fish species closely related to the zebra...

 This study was carried out to investigate occurrence of parasite in selected cyprinid fish species in Gandoman Lagoon, in the vicinity of Gandoman City, Chaharmahal & Bakhtyari Province. A total of 90 fish specimens including Cyprinus carpio, Carassius auratus gibelio, Capoeta aculeata , C.damascina, Chondrostoma regium and Alburnus alburnus from Gandoman were examined during spring and summer...

Koi herpesvirus (KHV), also known as Cyprinid herpes virus 3 (Cyprinid 3) is lethal disease in common carp and koi (Cyprinus carpio). Two different groups (KK and RK) were infected KHV by intraperitoneal injection. Fish for gene expression analysis were sampled at 0 h, 12 h, 24 h, 48 h and 72 h post infection (p.i). The results showed that two immune related gene, Interferons (INFs) ɑβ and Inte...

Requalification of low-head ramped weirs through the addition substrates (retrofitting) has attracted attention in recent years. However, few studies are available on how this measure affects negotiation by fish. This study aimed to assess performance an experimental weir (3.00 m long with 10% slope; 0.30 head-drop) enhance passage a potamodromous cyprinid species, Iberian barbel (Luciobarbus b...

Most freshwater fish need to move freely through rivers complete their life cycles. Thus, river barriers (e.g. dams, culverts and gauging stations) may delay, hinder or even block longitudinal movements, affecting conservation. The most widespread solution allow upstream migration are fishways, whereas downstream is basically facilitated spillways, turbines specific solutions such as bypass sys...

Virion transmembrane proteins (VTPs) mediate key functions in the herpesvirus infectious cycle. Cyprinid herpesvirus 3 (CyHV-3) is the archetype of fish alloherpesviruses. The present study was devoted to CyHV-3 VTPs. Using mass spectrometry approaches, we identified 16 VTPs of the CyHV-3 FL strain. Mutagenesis experiments demonstrated that eight of these proteins are essential for viral growth...

The aetiological agent is koi herpesvirus (KHV) in the family Herpesviridae (18, 45) although it has also been given the name carp interstitial nephritis and gill necrosis virus (CNGV) (20, 30). Waltzek et al. (42) provided evidence to support the classification of the virus as a herpesvirus, and named it cyprinid herpesvirus 3 (CyHV-3), following the nomenclature of other cyprinid herpesviruse...

Many endangered fish species in the wild are artificially bred, and their populations strengthened by stocking of aquaculture-raised juveniles. Because from aquaculture generally not well prepared for challenging life wild, we tested whether training selected challenges could improve survival after stocking. We chose conditioning on predation pressure (by learning predator image northern pike E...