Size Structure and Catch Rates of White Crappie, Black Crappie, and Bluegill in Trap Nets with 13-mm and 16-mm Mesh

Jackson, Jeffrey J.; Bauer, Daryl L.

doi:10.1577/1548-8675(2000)020<0646:ssacro>2.3.co;2

Cited by 13 publications

(13 citation statements)

References 3 publications

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“…In Kansas reservoirs, catch rates of age-0 (i.e., substock; < 80 mm total length) white crappie were greater with 13-mm than with 25-mm- mesh fyke nets (Willis et al 1984), and catch rates of stock-length bluegill (L80 mm total length) were greater with 13-than 25-mm mesh fyke nets (Schultz and Haines 2005). Jackson and Bauer (2000) found that 16-mm mesh fyke nets sampled fewer bluegill less than 80 mm and white crappie less than 130 mm than 13-mm mesh fyke nets in Nebraska reservoirs. Therefore, increased PSDs with larger mesh would be expected because fewer small (i.e., stock-length) individuals relative to large (i.e., quality-length) individuals would be sampled.…”

Section: Discussionmentioning

confidence: 99%

A Comparison of Modified Fyke Nets for Evaluating Fish Assemblages and Population Structure

Fische¹,

Johnson²,

Schultz³

et al. 2010

Journal of Freshwater Ecology

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Modified fyke nets have long been used by fisheries managers to assess species composition and evaluate population characteristics of individual species. Despite their widespread use, only recently have recommendations for standard fyke net specifications been made. Therefore, we evaluated species composition and catch rates, size structure, and sample size requirements for bluegill (Lepomis macrochirus), black crappie (Poxomis nigromaculatus), and white crappie (P. annularis) in seven Iowa lakes in the fall of 2009 using two different fyke nets. Fyke net specifications followed a recently recommended standard design and that currently used by Iowa Department of Natural Resources (IDNR). Overall, the standard fyke net sampled more individuals and species than the IDNR net. Additionally, mean catch rates of the focal species were consistently higher with the standard fyke net. Size structure comparisons were limited by fewer than 125 stock-length fishes sampled in several lakes, but when comparison was possible, size structure was similar between the fyke net types. The number of samples needed to obtain at least 125 stock-length individuals with standard fyke nets was consistently lower than that for IDNR fyke nets for all species.

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Section: Discussionmentioning

confidence: 99%

A Comparison of Modified Fyke Nets for Evaluating Fish Assemblages and Population Structure

Fische¹,

Johnson²,

Schultz³

et al. 2010

Journal of Freshwater Ecology

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“…Therefore, it is important to combine multiple gears to ensure that all possible habitats are included when sampling lake fish assemblages (Diekmann et al 2005). While extensive research exists on the gear bias associated with species-specific capture efficiency (Clark & Willis 1989;Kraft & Johnson 1992;Jackson & Bauer 2000), there has been little research conducted on differential catch and gear biases associated with body size and the assessment of the body-size distribution of fish assemblages. For this reason, the primary objective of the present study was to assess differences in assemblage body-size distributions sampled by four types of nets commonly used in surveys of lake fisheries.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of fishing gears to assess fish assemblage size structure in small lake ecosystems

Clement

Pangle

Uzarski

et al. 2014

Fisheries Management Eco

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Measurement of fish body‐size distributions is increasingly used as a management tool to assess fishery status. However, the effects of gear selection on observed fish size structure has not received sufficient attention. Four different gear types (experimental gill nets, fine mesh bag seine, and two different sized mesh trap nets), which are commonly employed in the study area for fisheries surveys, were used to fish in five small (< 200 ha) lakes to evaluate differential catch in terms of species composition and assemblage size distributions. Kolmogorov–Smirnov tests revealed that, out of the five lakes and six comparisons, the four gear types captured fish of statistically similar size distributions in only one instance. Non‐metric multi‐dimensional scaling followed by a multi‐response permutation procedure revealed that the species composition of fish captured by these gears also differs. These results support the notion that multiple gear types should be used to assess body‐size distributions as well as fish assemblage composition.

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“…All fisheries sampling methods are subject to biases that affect accuracy and precision of important parameter estimates of fish population (Boxrucker and Ploskey 1989;Hayes et al 1996;Hubert 1996;Pope and Willis 1996;Jackson and Bauer 2000). Deployment of multiple gear types can result in different estimates of species population dynamics and characteristics (e.g., Schultz and Haines 2005;Bacula et al 2011), potentially resulting in inappropriate management decisions.…”

mentioning

confidence: 99%

“…As a result, fyke nets are recommended and commonly used for collecting and evaluating Bluegill Lepomis macrochirus, Black Crappie Pomoxis nigromaculatus, White Crappie P. annularis, and Redear Sunfish L. microlophus (Miranda and Boxrucker 2009;Pope et al 2009). However, specifics of net construction, including mesh size, number of throats, throat diameter, and lead length, can affect those estimates (e.g., Willis et al 1984;Jackson and Bauer 2000;Shoup et al 2003). For example, capture rates and estimates of species diversity are higher in large-frame fyke nets compared with small-frame fyke nets (Fischer et al 2010).…”

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confidence: 99%

Comparison of Three Methods for Sampling Panfish in Iowa Impoundments

Flammang

Schultz

Weber

2016

N American J Fish Manag

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Science‐based decision making in fisheries management requires the collection of sampling data with the acknowledgment that all gears have inherent sampling biases. Fyke nets are a common tool for sampling panfish. However, recent evaluations suggest hoop nets are more effective for evaluating these populations. We compared panfish relative abundance, size structure, condition, sampling effort to capture 100 individuals, and sampling precision for small (61 × 122‐cm frames) and large (91 × 183‐cm frames) fyke nets soaked for 24 h and tandem hoop nets soaked for 72 h during spring and fall. Hoop nets and large fyke nets captured more Bluegills Lepomis macrochirus, Black Crappies Pomoxis nigromaculatus, and White Crappies P. annularis than did small fyke nets, but catch rates for Redear Sunfish L. microlophus were similar among gear types. Bluegills captured in hoop nets were generally longer than those captured in small or large fyke nets, but the length of other panfish was similar among gears. Bluegill size structure was generally largest and Black Crappie size structure was generally smallest in hoop nets compared with that in fyke nets. Relative weight was greater for Bluegills captured in small fyke nets and was higher in the spring than fall. Hoop nets generally captured more panfish with fewer net sets and with greater precision than did small or large fyke nets, providing an additional tool for fisheries biologists for population assessments. Received March 4, 2016; accepted July 13, 2016 Published online October 28, 2016

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Size Structure and Catch Rates of White Crappie, Black Crappie, and Bluegill in Trap Nets with 13-mm and 16-mm Mesh

Cited by 13 publications

References 3 publications

A Comparison of Modified Fyke Nets for Evaluating Fish Assemblages and Population Structure

A Comparison of Modified Fyke Nets for Evaluating Fish Assemblages and Population Structure

Effectiveness of fishing gears to assess fish assemblage size structure in small lake ecosystems

Comparison of Three Methods for Sampling Panfish in Iowa Impoundments

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