. Brimleyana. Zoology; Ecology; Natural history. 20 Alvin L. Braswell and Ray E. Ashton, Fig. 2. All known records for Necturus lewisi. Solid dots are localities sup- ported by voucher specimens; small hollow dots are sight records believed valid; and large hollow circles are localities supported by voucher specimens with imprecise locality data. Table 1 shows the capture success for N. lewisi in different category streams. The capture success rate was significantly higher in medium and large streams than in little and small streams. No significant differ- ence in capture success rate bet
. Brimleyana. Zoology; Ecology; Natural history. 20 Alvin L. Braswell and Ray E. Ashton, Fig. 2. All known records for Necturus lewisi. Solid dots are localities sup- ported by voucher specimens; small hollow dots are sight records believed valid; and large hollow circles are localities supported by voucher specimens with imprecise locality data. Table 1 shows the capture success for N. lewisi in different category streams. The capture success rate was significantly higher in medium and large streams than in little and small streams. No significant differ- ence in capture success rate between little and small streams was noted, but a trend toward greater success in larger streams was apparent. Frequent fluctuations in water levels caused by precipitation made it difficult to obtain meaningful depth measurements. Therefore, no Table 1. Comparative Necturus lewisi capture success in streams of different relative widths (m, approx.). Numbers in parentheses are number of sampling efforts for each stream width given; total samples = 749. Per- centages are success rates for each stream width. Relative stream width Capture success Little Negative Positive (77) (36) Totals (97) (175) (113). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original North Carolina State Museum of Natural History. [Raleigh, NC : North Carolina State Museum of Natural History]
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Keywords: ., bookcentury1900, booksubjectnaturalhistory, booksubjectzoology
