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Showing 1 to 8 of 8 for “"topminnow"”.
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Diet and Feeding-Related Morphometrics of the Blackstripe Topminnow, <i>Fundulus notatus</i>, in Allotropic and Syntopic Populations with the Blackspotted Topminnow, <i>Fundulus olivaceus</i>
<p>The <em>Fundulus notatus</em> species complex consists of three described species: <em>F. notatus</em>, <em>F. olivaceus</em> and <em>F. euryzonus</em>. Both <em>F. notatus</em> and <em>F. olivaceus</em> have broad overlapping ranges with many populations being found within and outside of …
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Overcoming evolutionary history: conditioning the endangered Barrens topminnow to avoid predation by the invasive Western mosquitofish
… one cause of evolutionary traps, and the Barrens Topminnow (BTM), Fundulus julisia serves as an example of an imperiled species trapped by the introduction of an invasive predator: the Western Mosquitofish (WMF), Gambusia affinis. This study used conditioning to help the BTM escape its …
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An experimental test of intra- and inter-specific competition between invasive western mosquitofish (Gambusia affinis) and native plains topminnow (Fundulus Sciadicus)
… competitive strength between native plains topminnow (Fundulus Sciadicus) and invasive western mosquitofish (Gambusia affinis) at 16, 22, and 28 °C. Data were analyzed using the isodar theory, which assumes that animals are ideally distributed to maximize their fitness and thus their …
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Social learning and its effect on conservation efforts in the Barrens Topminnow: an evaluation of conditioning and social learning as a viable longterm solution to evolutionary traps
… freshwater fish species, including the Barrens Topminnow (BTM), Fundulus julisia. In my study, I investigated if BTMs are capable of socially learning conditioned predator recognition, and I hypothesized that BTMs are capable of social learning and that such learning might improve survival of …
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Latitudinal Variation in Thermal Tolerance and Preference of <i>Fundulus notatus</i> and <i>F. olivaceus</i>: Implications for Temperature Mediated Reproductive Isolation
… <em>Fundulus notatus</em>, the blackstripe topminnow, and <em>F</em>.<em> olivaceus</em>, the blackspotted topminnow, are widely distributed species located in drainages along the northern part of Gulf of Mexico (30°N latitude) and as far north as southern Illinois (39°N latitude). However, …
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A Survey of the Fishes and Habitat of the Cheyenne River in South Dakota
… (sturgeon chub Machrybopsis gelida, plains topminnow Fundulus sciadicus, flathead chub, plains minnow, and western silvery minnow). Relative weight (Wr) of channel catfish among three length groups in the Cheyenne River was 73-184 for the 70-279 mm length group, 75-96 for the 280-409 mm …
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Ecology of Glacial Relict Fishes in South Dakota's Sandhills Region
… (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 characteristics. We sampled fish and habitat in 42 …
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Phenotypic patterns of size and shape in North American killifish
Variation exists in multiple levels of organization, including between and within species, populations, and individuals. Fish are ideal organisms to explore questions related to the patterns of variation and the potential processes driving patterns. Fish occupy different types of habitats that vary …