Microhabitat use, movements and abundance of gilt darters (<i>Percina evides</i>) in southern Appalachian (USA) streams

Skyfield, Jessica Paige; Grossman, Gary D.

doi:10.1111/j.1600-0633.2007.00273.x

Cited by 29 publications

(35 citation statements)

References 49 publications

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“…Gilt darters feed on benthic macroinvertebrates and are declining in abundance in several areas including the southeastern United States (Hatch, 1985;Margulies et al, 1980). Because the study site and methods were described in the previous article (Skyfield & Grossman, 2008), we only will describe them briefly here. Our study site was a 110-m section of Tellico Creek, located in Macon County, North Carolina, USA.…”

Section: Species and Study Sitementioning

confidence: 99%

“…Gilt darters are medium-sized benthic darters that inhabit microhabitats with higher velocities and cobble substrata, although these patterns are affected by size and sex (Skyfield & Grossman, 2008). They occur in three disjunct populations inhabiting the southern Appalachians, upper Midwest, and Ozarks (Near et al, 2001).…”

Section: Species and Study Sitementioning

confidence: 99%

“…Darter microhabitat use methods are presented in Skyfield & Grossman (2008) and were based on the techniques of Grossman & Freeman (1987). We made fish microhabitat measurements between August 9-28, 2005 (Summer) and October 21-November 5 (Autumn).…”

Section: Microhabitat Measurementsmentioning

confidence: 99%

“…Microhabitat availability data can be collected using several methods including systematic sampling, typically via transects (Thompson et al, 2001), random or stratified random sampling , and constrained random sampling (Petty & Grossman, 1996;Henry & Grossman, 2007;Skyfield & Grossman, 2008). In this article, we compare the patterns of non-random habitat use by the gilt darter (Percina evides) using stratified random and constrained random microhabitat availability data sets.…”

Section: Introductionmentioning

confidence: 99%

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Quantifying microhabitat availability: stratified random versus constrained focal-fish methods

Grossman

Skyfield

2009

Hydrobiologia

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During a study of microhabitat use by gilt darters (Percina evides), we compared two methods for quantifying microhabitat availability in a southern Appalachian stream (USA). The first method used stratified random sampling throughout the site and the second involved taking constrained random measurements within a 2-m radius of the focal fish. Darters were generally over-represented in microhabitats with higher average velocities, greater amounts of erosional substrata, and lower amounts of depositional and large substrata. The two methods generally yielded similar patterns of microhabitat use. Nonetheless, of the seven microhabitat categories in which differential microhabitat use occurred in summer, four were present in both data sets, but three differed between methods. We observed no differences between methods for autumn data. Finally, the standard deviations of the summer-stratified random data set were significantly greater (sign test, P \ 0.05) than those of the constrained data set. Our results suggest that either method for quantifying microhabitat availability can be used to quantify the general habitat use patterns of this species, but constrained analyses yielded a more restricted view of the total habitat available. Nonetheless, if the fishes range over a site, clearly stratified habitat availability analysis is preferred.

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Section: Species and Study Sitementioning

confidence: 99%

Section: Species and Study Sitementioning

confidence: 99%

Section: Microhabitat Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Quantifying microhabitat availability: stratified random versus constrained focal-fish methods

Grossman

Skyfield

2009

Hydrobiologia

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“…One experiment aiming to describe short distance movement (daily home-range) was held in the field on July-2009 and followed Skyfield & Grossman (2008). One site, 100m long, was divided in five subsections of 20m isolated from each other with closing nets (5mm mesh size).…”

Section: Study Areamentioning

confidence: 99%

Movement patterns of stream-dwelling fishes from Mata Atlântica, Southeast Brazil

Mazzoni

Iglesias-Rios

2012

RBT

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Abstract:The identification of mechanisms of spatial-temporal variation, obtained from the quantification of natural populations, is a central topic of ecological research. Despite its importance to life-history theory, as well as to conservation and management of natural populations, no studies concerning movement patterns and home range of small stream-dwelling fishes from Brazilian rain forests are known. In the present study we aimed to describe the longitudinal pattern of long distance movement as well as local patterns of short movement (daily home-range) of fishes from a Mata Atlântica stream from Southeast Brazil. We gathered information about movement dynamic in order to discuss the relationship between swimming ability, fish morphology and home range. Long distance movement data were obtained in a mark-recapture experiment held in the field between June and September -2008, on five sites along the Ubatiba stream. For this study, we had one day to mark fishes, on June-19, and 14 events for recapture. Considering the ten species that inhabit the study area, our study showed that four species: Astyanax janeiroensis, Astyanax hastatus, Parotocinclus maculicauda and Pimelodella lateristriga, moved at least 6 000m in 60 days. The other six species did not present long distance movements, as they were recaptured in the same site 90 days after being marked. For short distance study, movement data were obtained in one mark-recapture experiment held in a 100m long site subdivided into five 20m stretches where fishes were marked with different elastomer colours. We marked 583 specimens that after recapture showed two groups of different movement patterns. The first group was called "Long Movement Group" and the second one was called "Short Movement Group". The Long Movement Group showed, on average, 89.8% of moving fishes and 10.2% of non moving fishes, against 21.3% and 78.7%, respectively, for the Short Movement Group. It was concluded that fish movement could explain the previously mentioned community stability, and that it is correlated to specific morphological attributes. Rev. Biol. Trop. 60 (4): 1837-1846. Epub 2012 December 01.

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Habitat suitability of golden mahseer young ones (Tor putitora, Hamilton 1822) in Himalayan waters, India

Dhawan

Sivakumar

Johnson

2023

River Research & Apps

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Habitat suitability refers to the mechanism that enables organisms to choose suitable habitats to survive. In the present study, we studied the habitat suitability of young golden mahseer (fingerlings and juveniles) in the streams of the Ramganga River, one of the prominent rivers of the western Himalaya. Different habitat types and microhabitat features were documented. Habitat suitability was evaluated by generating habitat suitability criteria curves in response to varying habitat availability and use by young golden mahseer during different seasons. Generalised linear modelling (GLM) was used to analyse environmental characteristics responsible for selecting golden mahseer habitats. We studied mahseer based on body size into two main classes, that is, fingerlings (1.5–10 cm) and juveniles (10–30 cm). Golden mahseer fingerlings preferred mean depth (0.1–0.6 m) and mean stream velocity (0–0.2 m/s) at stream reach dominated by diverse substrate compositions such as sand, gravel, and small cobbles. Similarly, juveniles preferred mean depth (0.1–1.5 m) and mean water velocity (0.1–0.5 m/s), with cobbles, bedrock, and sand dominating their habitats. The GLM results indicated that dissolved oxygen, temperature, and water velocity were the significant factors influencing habitat suitability. High dissolved oxygen positively influenced fingerlings, whereas moderate to high water velocity affected juveniles the most. Therefore, to understand the flow requirement for threatened species like golden mahseer, it is essential to characterise critical habitats and develop criteria based on habitat suitability curves.

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Microhabitat use, movements and abundance of gilt darters (Percina evides) in southern Appalachian (USA) streams

Cited by 29 publications

References 49 publications

Quantifying microhabitat availability: stratified random versus constrained focal-fish methods

Quantifying microhabitat availability: stratified random versus constrained focal-fish methods

Movement patterns of stream-dwelling fishes from Mata Atlântica, Southeast Brazil

Habitat suitability of golden mahseer young ones (Tor putitora, Hamilton 1822) in Himalayan waters, India

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