Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Blacknose"”.
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Juvenile crappie growth and bioenergetics: implications for management using blacknose crappie
… management agencies have cultured and stocked blacknose crappie, a phenotypic variant of black crappie. Continued use of blacknose crappie by managers has also stemmed from perceived differences in growth and survival relative to black crappie in rearing environments. My thesis evaluates …
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Response of brook char (Salvelinus fontinalis) and blacknose dace (Rhinichthys atratulus) to acidic episodes in three headwater streams within the Shenandoah National Park, Virginia
… with ANC. Brook char (Salvelinus fontinalis) and blacknose dace (Rhinichthys atratulus) were the only two species common to all watersheds. Both species used pools more than riffles (P<0.05). Brook char density in pools increased with ANC (P<0.05), ranging from 13.1 to 40.1 fish/100m². Blacknose …
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Incipient Speciation in Freshwater Fish Species from Two Isolated Watersheds
… species were <em>Rhinichthys atratulus</em> (Blacknose Dace), <em>Etheostoma olmstedi</em> (Tessellated Darter) and <em>Catostomus commersonii</em> (White Sucker). In this study the number of chromosomes and their morphology, the morphological, meristic and osteological differentiation, and …
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Investigating Reproductive Phenology and Alloparental Care in Leuciscid Fishes using Niche Theory Approaches
… Creek Chub Semotilus atromaculatus, and Blacknose Dace Rhinycthys atratulus. I applied Hutchinsonian niche theory with respect to hydrology and water temperature to define the reproductive phenology of each species involved in the reproductive mutualism, then used Eltonian niche theory to …
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Spring-fed streams in Virginia and assessment of livestock impacts
… averaged 0.47 individuals/m². Two species, blacknose dace (Rhinichthys atratulus) and sculpins (Cottus sp.) dominated most sites. Spring size and location factors more effectively predicted fish community structure than did instream habitat or riparian condition, indicating that composition …
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Local effects of culverts on habitat features and fish assemblages in Blue Ridge streams
… < 0.10). Fish abundance (predominantly western blacknose dace Rhinichthys obtusus) was consistently higher downstream than upstream (P < 0.10), regardless of the culvert type. In addition, reaches downstream of artificial substrate culverts exhibited reduced species evenness compared to upstream …
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Ecology of Glacial Relict Fishes in South Dakota's Sandhills Region
… the status of two other state listed species (blacknose shiner Notropis heterolepis, plains topminnow Fundulus sciadicus). We also quantitatively described fish assemblage patterns throughout southwestern South Dakota. Finally, we investigated regional variability of pearl dace population …
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Distribution and life history of the endangered James Spinymussel, pieurobema collina (bivalvia: unionidae)
… central stoneroller (Campostoma anomalum), blacknose dace (Rhinichthys atratulus), and mountain redbelly dace (Phoxinus oreas). Juvenile P. collina, fed a mixture of three green algae species in chambers with and without silt, lived 50 days. Juveniles in silt grew significantly faster than …
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Delination of Coastal Shark Habitat within North Carolina Waters Using Acoustic Telemetry, Fisher-Independent Surveys, and Local Ecological Knowledge
… occurred primarily during mid-afternoon and Blacknose Sharks (Carcharhinus acronotus) occurring most often at night. A large Bull Shark tagged in another study accounting for the majority of tag detections and occurred within the array primarily during nighttime hours, most often on receivers …
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Short-term response of physical habitat and fish to the addition of large woody debris in two Appalachian Mountain streams
Large woody debris (LWD) was added to North Fork Stony Creek and North Prong Barbours Creek in southwest Virginia to inlprove fish habitat. The purposes of this study were to monitor stream channel response to the addition of LWD at a stream reach scale and at a local scale around individual logs, …