Invasive carps are ecologically and economically problematic fish species in many large river basins the United States pose a threat to aquatic ecosystems throughout much of North America. Four invasive carps: black carp (Mylopharyngodon piceus), grass (Ctenopharyngodon idella), silver (Hypophthalmichthys molitrix) bighead nobilis), particularly concerning for native because they occupy disrupt...

Background: Synthetic azo dyes are very extensively using various industries such as food items and non-food items. Tartrazine is well known dye due to its wide range of applications, also acid yellow 23. Most release these containing effluents into water bodies without proper treatment. There no well-documented study about the toxicological effect tartrazine in fishes. studies with concentrate...

Continued on back page The most recent invasive species threatening Illinois’ aquatic ecosystems are the bighead and silver carps, two of four species commonly called Asian carps. These fish grow quickly to more than 50 lbs by consuming 30– 50% of their body weight each day in small algae and other tiny organisms. They also reproduce quickly and migrate long distances to spawn. Currently, in th...

As bighead carp Hypophthalmichthysnobilis and silver carp H. molitrix (the bigheaded carps) are poised to enter the Laurentian Great Lakes and potentially damage the region's economically important fishery, information on developmental rates and behaviors of carps is critical to assessing their ability to establish sustainable populations within the Great Lakes basin. In laboratory experiments,...

CURRENT SCIENCE, VOL. 88, NO. 12, 25 JUNE 2005 1897 It provides an important link in the evolution of insects. The morphological characters of the reported bug, such as small body, short antennae comprising three segments, three-segmented, backwardly directed rostrum with thorax being the largest among the three parts of the insect body, are not yet known in a living or fossil insect family. It...

The prevention of non-indigenous aquatic invasive species spreading into new areas is a goal of many resource managers. New techniques have been developed to survey for species that are difficult to capture with conventional gears that involve the detection of their DNA in water samples (eDNA). This technique is currently used to track the invasion of bigheaded carps (silver carp and bighead ca...