Seasonal Habitat Use of Slimy Sculpin and Juvenile Rainbow Trout in a Central New York Stream

2018 ◽  
Vol 25 (4) ◽  
pp. 646
Author(s):  
James H. Johnson ◽  
Gregg E. Mackey ◽  
Justin A. DiRado ◽  
Phyllis L. Randall ◽  
Ross Abbett
Keyword(s):  
New York ◽  
Rainbow Trout ◽  
Habitat Use ◽  
Juvenile Rainbow Trout ◽  
Slimy Sculpin ◽  
Central New York ◽  
Seasonal Habitat Use

Changes in Habitat Use and Feeding Chronology of Juvenile Rainbow Trout (Oncorhynchus mykiss) in Fall and the Onset of Winter in Silver Creek, Idaho

1993 ◽  
Vol 50 (10) ◽  
pp. 2119-2128 ◽  
Author(s):  
Michael D. Riehle ◽  
J. S. Griffith
Keyword(s):  
Rainbow Trout ◽  
Habitat Use ◽  
Oncorhynchus Mykiss ◽  
Density Distribution ◽  
Stomach Contents ◽  
Early Morning ◽  
Invertebrate Drift ◽  
Juvenile Rainbow Trout ◽  
Rainbow Trout Oncorhynchus Mykiss

We assessed changes in density, distribution, and microhabitat of age-0 rainbow trout (Oncorhynchus mykiss) in Silver Creek, a partially spring-fed stream, by periodic snorkeling in August 1987 through January 1988. We examined trout stomach contents and invertebrate drift samples in diel collections in August, September, October, and January to test if the period of feeding shifted from daytime to nighttime, concurrent with a transition to day concealment. In late September, fish aggregated briefly during the day and then began to conceal themselves in macrophyte beds, undercut banks, and submerged sedges and grasses along streambanks as temperature dropped below 8 °C in early October. Fish emerged from concealment at night, and numbers of trout visible were greatest 30–60 min after sunset and about 30 min before sunrise. Periods of peak feeding changed from afternoon and evening in August and September, when fish were day active, to mainly at night in October after the initiation of day concealment. Trout did not feed upon abundant chironomids in the daytime drift in October. In January, fish fed at 1–4 °C on mayflies, and stomachs were fullest in the early morning. Observations suggest that Silver Creek trout experienced a metabolic deficit that began in September.

scholarly journals Diet Composition, Feeding Periodicity, and Prey Selection of Slimy Sculpin During Winter

2017 ◽  
Vol 8 (2) ◽  
pp. 611-617 ◽  
Author(s):  
James H. Johnson ◽  
Marc A. Chalupnicki ◽  
Ross Abbett
Keyword(s):  
New York ◽  
Feeding Ecology ◽  
Diet Composition ◽  
Prey Selection ◽  
Diel Variation ◽  
Slimy Sculpin ◽  
Northern Latitudes ◽  
Central New York ◽  
Feeding Periodicity ◽  
Winter Feeding

Abstract Slimy Sculpin Cottus cognatus is an important component of the benthic ichthyofauna of many lakes and streams in the northern latitudes of North America. Although considerable information exists on the feeding ecology of this species, there is essentially no information available on winter feeding. Consequently, we examined the winter feeding ecology of Slimy Sculpins in a central New York stream. Ephemeropterans (37.8%) and trichopterans (31.2%) were the primary prey taxa consumed in January. There was evidence of diel variation in diet composition, with ephemeropterans making up 24.1% of the diet at 0400 hours and 46.7% at 1600 hours and trichopterans contributing 22.7% at 1200 hours and 43.8% at 2000 hours. During winter, Slimy Sculpins selected chironomids (0.46) and trichopterans (0.43) and avoided coleopterans (−0.84) and nonchironomid dipterans (−0.67). Peak food consumption of Slimy Sculpins occurred at night. Winter feeding patterns of Slimy Sculpins in Grout Brook, a second-order tributary of Skaneateles Lake in central New York, contrasted sharply with observations from other studies carried out during other seasons. Our findings are a significant contribution on the winter feeding ecology of this important benthic species and illustrate the need for both diel and winter studies to fully understand life history characteristics.

Survey of Pancreatitis—Central New York Surgical Society

1961 ◽  
Vol 40 (1) ◽  
pp. 94-108 ◽  
Author(s):  
Leon G. Berman ◽  
Edward Dunn ◽  
Clifford J. Straehley
Keyword(s):  
New York ◽  
Central New York
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