Common Carp Cyprinus carpio and Bigmouth Buffalo Ictiobus cyprinellus are widespread across the Midwest, where they can achieve high population densities in shallow lakes. Despite their contrasting statuses as invasive native fishes, these species commonly managed together due to capacity have deleterious effects on water quality. However, intra-annual sampling variability is poorly understood ...

The presence of covalent cross-linkages between the peptide chains of collagen has been postulated to account for many of the properties of collagen (l), particularly the insolubility of mature fibrous mammalian collagen in water or dilute acids at low temperature. There is as yet no direct chemical evidence as to the nature and number of the cross-linkages, although ester bonds (2-4) and aldeh...

Examination of the pharyngeal apparatus of 22 species of catostomids reveals three types of bones and teeth associated with different dietary habits. The mollusk feeders Moxostoma hubbsi and M . carinatum have 21-42 large, molariform teeth on each of the heavy pharyngeal bones. The teeth occlude with a chewing pad borne by the basioccipital and are well-adapted for crushing shells. Most catosto...

—Fishes can provide an important link between benthic and pelagic habitats by removing nutrients from sediments and excreting them into the water column. The relative importance of nutrients excreted by fishes to ecosystem productivity may vary among species and with abiotic conditions. I measured excretion rates of three benthic feeding fishes, gizzard shad Dorosoma cepedianum, smallmouth buff...