Evaluating Single-Pass Catch as a Tool for Identifying Spatial Pattern in Fish Distribution

Bateman, Douglas S.; Gresswell, Robert E.; Torgersen, Christian E.

doi:10.1080/02705060.2005.9664974

Cited by 71 publications

(57 citation statements)

References 19 publications

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“…One approach to solving this data question may be to encourage more use of rapid survey techniques (e.g. Bateman et al, 2005). These techniques deemphasize the levels of measurement precision usually required by biologists (particularly experimental biologists), and instead emphasize broad coverage in many river habitats.…”

Section: Discussionmentioning

confidence: 98%

Making riverscapes real

et al. 2012

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Section: Discussionmentioning

confidence: 98%

Making riverscapes real

et al. 2012

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“…Although repeat-pass depletion sampling is widely considered to be among the most effective methods for estimating local abundance of stream fishes (Murphy and Willis 1996;Sutherland 2006), it can be problematic because it is time consuming, gives rise to differential capture probabilities across multiple passes, and it can be potentially harmful to target species (Snyder 2003). Single pass sampling is an alternative approach that circumvents these complications, as it has been shown to provide comparable estimates of local abundance relative to repeat-pass depletion sampling, particularly in small streams (Jones and Stockwell 1995;Kruse et al 1998;Bateman et al 2005). …”

Section: Site Selection and Specimen Collectionsmentioning

confidence: 98%

Genetic diversity and species diversity of stream fishes covary across a land-use gradient

Blum

Bagley²,

Walters³

et al. 2011

Oecologia

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Genetic diversity and species diversity are expected to covary according to area and isolation, but may not always covary with environmental heterogeneity. In this study, we examined how patterns of genetic and species diversity in stream fishes correspond to local and regional environmental conditions. To do so, we compared population size, genetic diversity and divergence in central stonerollers (Campostoma anomalum) to measures of species diversity and turnover in stream fish assemblages among similarly sized watersheds across an agriculture-forest land-use gradient in the Little Miami River basin (Ohio, USA). Significant correlations were found in many, but not all, pair-wise comparisons. Allelic richness and species richness were strongly correlated, for example, but diversity measures based on allele frequencies and assemblage structure were not. In-stream conditions related to agricultural land use were identified as significant predictors of genetic diversity and species diversity. Comparisons to population size indicate, however, that genetic diversity and species diversity are not necessarily independent and that variation also corresponds to watershed location and glaciation history in the drainage basin. Our findings demonstrate that genetic diversity and species diversity can covary in stream fish assemblages, and illustrate the potential importance of scaling observations to capture responses to hierarchical environmental variation. More comparisons according to life history variation could further improve understanding of conditions that give rise to parallel variation in genetic diversity and species diversity, which in turn could improve diagnosis of anthropogenic influences on aquatic ecosystems.

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“…Single-pass electrofishing was deemed a sufficient capture method as no fish population abundance estimates were planned for the study (e.g. Bateman et al 2005). All samples were frozen at -80°C until fatty acid extraction and C, N, and P and micronutrient analyses.…”

Section: Sample Collectionsmentioning

confidence: 99%

Comparison of fatty acids and elemental nutrients in periphyton, invertebrates, and cutthroat trout (Oncorhynchus clarki) in conifer and alder streams of western Washington state

Volk

Kiffney

2011

Aquat Ecol

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Organism growth and reproduction are often limited by nutrient availability in freshwater ecosystems where, in some cases, food webs are primarily supported by allochthonous organic matter. Therefore, we hypothesized that the composition of riparian vegetation would influence the variability of N, P, and fatty acid content of in-stream consumers. Specifically, we predicted that organisms living in alder streams would have higher levels of N, P, and polyunsaturated fatty acids than organisms in coniferous streams. To determine this, we sampled fresh and aged leaf litter, periphyton, invertebrates, and cutthroat trout (Oncorhynchus clarki) from 6 streams in western Washington state: 3 streams had high densities of nitrogen-fixing red alder (Alnus rubra) in the riparian zone, whereas 3 had high densities of conifers. We found fresh alder litter had twice the total polyunsaturated fatty acid concentrations of hemlock vegetation while there were few statistical differences among aged alder and aged hemlock vegetation. Multidimensional plots showed fatty acid profiles were unique to vegetation and fish while periphyton and invertebrates shared the same multidimensional space. We used a mixed model to determine the relative importance of vegetation type (fixed factor: conifer or alder), trophic levels (fixed factor: periphyton, primary consumer, or fish), and streams (random factor) on individual fatty acid concentrations. Total polyunsaturated fatty acids, 16:0, 20:1, 20:3n6 and total n3 were the only fatty acids influenced by stream vegetation (vegetation ? stream model or full model). 67% of the fatty acids were best supported by the trophic ? stream model. Nitrogen, P, Ca, Fe, C:N, N:P, and C:N:P were all best supported by the trophic level ? stream model, and Zn was the only nutrient supported best by the full model. Correlations of n3 and n6 fatty acid concentrations between periphyton and primary consumers, and primary consumers with trout indicated several fatty acid metrics, such as n3:n6, showed food resources may affect relative fatty acid abundances of consumers. Although vegetation type did not influence relative fatty acids of stream organisms, the importance of trophic level likely indicates organisms have different physical requirements for fatty acids. The significance of a random Handling Editor: Piet Spaak.

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Evaluating Single-Pass Catch as a Tool for Identifying Spatial Pattern in Fish Distribution

Cited by 71 publications

References 19 publications

Making riverscapes real

Making riverscapes real

Genetic diversity and species diversity of stream fishes covary across a land-use gradient

Comparison of fatty acids and elemental nutrients in periphyton, invertebrates, and cutthroat trout (Oncorhynchus clarki) in conifer and alder streams of western Washington state

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