diazinon is a moderately persistent organ phosphorus pesticide largely used in agriculture. thepurpose of this study was to evaluate the histopathological damages induced by diazinon in gills, kidney,spleen, and intestine tissues of rainbow trout, oncorhynchus mykiss. the fishes were exposed to sub-lethalconcentrations of diazinon (0.1 and 0.2 mg/l) for a period of 28 days. tissues analyzed by ...

Two species of Didymozoidae, Didymosulcus palati (Yamaguti 1970) and Didymosulcus philobranchiarca (Yamaguti 1970) were reported for the first time in South America, Atlantic Ocean, parasitizing three different tuna species from the coast of Rio de Janeiro, Brazil: Thunnus atlanticus (Lesson), Thunnus albacares (Bonnaterre) and Thunnus obesus (Lowe). Pairs of D. philobranchiarca were found on g...

The gill epithelium is the site of gas exchange, ionic regulation, acid-base balance, and nitrogenous waste excretion by fishes. The last three processes are controlled by passive and active transport of various solutes across the epithelium. Various environmental pollutants (e.g., heavy metals, acid rain, and organic xenobiotics) have been found to affect the morphology of the gill epithelium....

A new species of Lycengraulis from the Amazon basin is described. Lycengraulis figueiredoi can be distinguished from L. grossidens by a short upper maxilla, its posterior margin not reaching the lower maxilla joint (vs. upper maxilla longer, its posterior margin reaching to or a little past of mandible joint). Lycengraulis figueiredoi can be distinguished also from L. poeyi by 26 to 31 anal-fin...

1. Sharksuckers use active branchial ventilation when swimming or at rest in stationary water. When attached to a moving object or when placed in a water current, they shift to ram gill ventilation as water velocity exceeds a certain threshold. 2. Water velocities required for the transition from active to ram gill ventilation were from 10-50 cm s-1, depending on the size of the fish. 3. Oxygen...

The gill of fishes is modified for gas exchange, thereby providing a site for net movement of salts and water down their respective gradients. Specialized cells in the gill epithelium are joined by tight junctions of variable depth and express a variety of transporters and channels. These cells mediate NaCl extrusion in marine fishes and NaCl uptake in freshwater fishes. These transport steps a...

Bacterial gill disease (BGD) is a common external infection of hatcheryreared salmonids and occasionally of warm water species reared under intensive conditions. As defined by Wood (1974), the name of the disease describes the clinical signs of bacterial infections on the gills. The etiological agent of the disease is considered to be one or more species of filamentous bacteria including Flavob...

ENWEndNote BIBJabRef, Mendeley RISPapers, Reference Manager, RefWorks, Zotero AMA Gill G. EPIDEMIOLOGICAL TRENDS OF ANTIBIOTIC-RESISTANT NEISSERIA GONORRHEA IN THE EU/EEA/EUROPEAN REGION: A SYSTEMATIC REVIEW. Health Problems of Civilization. 2023. doi:10.5114/hpc.2023.124085. APA Gill, (2023). https://doi.org/10.5114/hpc.2023.124085 Chicago Gurkeerat. "EPIDEMIOLOGICAL REVIEW". Harvard MLA REVIE...

1 From the Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Md (H.K.G.), and Departments of Pathology (O.B.I.) and Radiology (W.A.B.) and Greenebaum Cancer Center (W.A.B.), University of Maryland, 419 W Redwood St, Suite 110, Baltimore, MD 21201. From the 2000 RSNA scientific assembly. Received April 18, 2002; revision requested June 19; final revision received N...