Two species of common edible fish, common carp (Cyprinus carpio) and silver carp (Hypophthalmichthys molitrix), were exposed to a Microcystis spp.-dominated natural cyanobacterial water bloom for two months (concentrations of cyanobacterial toxin microcystin, 182-539 microg/g biomass dry wt). Toxins accumulated up to 1.4 to 29 ng/g fresh weight and 3.3 to 19 ng/g in the muscle of silver carp an...

The effect of adding protein xanthophyll from lucerne (PX) on growth parameters and the redox profile of carp muscle Cyprinus carpio (L.) was studied. During a 10-week experiment, carp were kept in two types of tanks: Control, where fish were fed a commercial fish feed, and in experimental tanks (PX+), where the fish were fed the same fish feed with a 5% addition protein xanthophyll from lucern...

A spontaneous seminoma in a 3 yr old male koi carp Cyprinus carpio L. is described. The animal, presenting a symmetric abdominal enlargement, showed a celomatic multinodular, white-yellowish and firm mass that infiltrated the liver and the intestine wall. Histologically, the neoplasm was non-encapsulated and poorly demarcated, showed invasive growth and was characterized by a lobular architectu...

Endocrine disrupting chemicals can potentially alter the reproductive physiology of fishes. To test this hypothesis, serum was collected from common carp (Cyprinus carpio) at five riverine locations in Minnesota. Male fish collected from an effluent channel below the St. Paul metropolitan sewage treatment plant had significantly elevated serum egg protein (vitellogenin) concentrations and signi...

VILIZZI, L. & WALKER, K.F., 1998 (31 :xii): Age profile of carp (Cyprinus carpio L.) in Lake Crescent, Tasmania. Pap. Proc. R. Soc. Tasm. 132: 1-8. ISSN 0080-4703. Department of Environmental Sciences, University of Hertfordshire, College Lane, Hatfield, Hertfordshire AL 1 0 9AB, UK (LV, formerly University of Adelaide); Cooperative Research Centre for Freshwater Ecology and Department of Zoolo...

The objective of this study is to identify fish protein markers for detecting multiple species based on a comparative proteomic approach that relies on fragments with identical sequences. The possibilities and challenges of the use of peptides obtained from carp (Cyprinus carpio) and herring (Clupea harengus) proteins are discussed. A bioinformatic analysis was followed by an LC-MS/MS experimen...

This report documents 2 cases of branchioblastomas in koi carp (Cyprinus carpio). Macroscopically, both cases were characterized by well-demarcated, pale red nodular masses located at the left first branchial arch and the right pseudobranch, respectively. Histologically, the neoplasias were composed of blast-like cells that differentiated into cartilage and branchial lamellae embedded in abunda...

With the rapid development of industry and agriculture and associated pollution, the cyanobacterial blooms in Lake Taihu have become a major threat to aquatic wildlife and human health. In this study, the ecotoxicological effects of cyanobacterial blooms on cage-cultured carp (Cyprinus carpio L.) in Meiliang Bay of Lake Taihu were investigated. Microcystins (MCs), major cyanobacterial toxins, h...

The hematological parameters of the two-year-old carp (Cyprinus carpio) under combined stressed were studied. quantitative and qualitative deviations in blood composition found experimental group against control group. Neutrophilia, monocytosis lymphocytopenia identified as well an increased number young forms erythrocytes background stress factors.

The protein nucleolin, functionally involved in the main steps of ribosome biogenesis, is codified by a single copy gene in mammals. Here we report that at least three different genes codify for this protein in carp fish (Cyprinus carpio). This is the first description of the genomic organization of nucleolin in a teleost. The carp nucleolin gene includes 8.8 kb and contains 16 exons. Promoter ...