Comparing Channel Catfish Populations in the Fragmented Minnesota River

Sindt, Anthony R.

doi:10.1002/nafm.10586

Cited by 3 publications

(1 citation statement)

References 61 publications

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“…River fragmentation similarly alters populations. For Channel Catfish, both abundance and size structure differences were detected in the fragmented Minnesota River (Sindt 2021, this special issue), whereas the free-flowing portions of the Wabash River supported higher Channel Catfish genetic diversity than the highly impounded Ohio River with isolated populations (Sotola et al 2017). Both Blue Catfish and Flathead Catfish (Blank et al 2021, this special issue) utilized different habitats between impounded and unimpounded systems.…”

Section: Ecology and Conservationmentioning

confidence: 94%

Catfish 2020, A Clear Vision of the Future

Porath

Kwak

Neely

et al. 2021

N American J Fish Manag

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The Third International Catfish Symposium was held in Little Rock, Arkansas, in 2020 and provided another milestone to gauge advances in knowledge related to conservation and management of these valuable fishes. Attendees from 29 states and 4 countries gathered to communicate research and information on the conservation, ecology, and management of the world’s catfishes. During 3 d of technical sessions and workshops, 74 oral presentations and 17 posters were shared with 198 attending fisheries professionals. Plenary and oral presentations were recorded and are available online (https://www.youtube.com/channel/UCHNt7ZV05DLWoe4qJO798Pw/videos), aligning with the symposium theme of “Communicating Catfish Science.” Technical sessions explored current research and management issues that included population demographics, introduced catfish populations, sampling methods, harvest management, human dimensions, conservation, habitat use and movement, biology, and aging methods. Ultimately, 38 manuscripts were peer reviewed and published as this special issue of the North American Journal of Fisheries Management. Interest in catfish science, as gauged by publications in six peer‐reviewed fisheries journals, has grown steadily since a 1910 catfish aquaculture article appeared in the Transactions of the American Fisheries Society. Biology and ecology topics became prominent in the 1970s and 1980s, while articles on techniques and fisheries management have grown steadily through 2020. Ecology, fisheries management, and techniques were the most published topics in the three international catfish symposia. Future research and management efforts will continue similar work but also seek to address the expanding role of catfish as invasive species and a better understanding of the ecology and conservation of small‐bodied native catfish. Among the greatest challenges will be adapting current tools and identifying future knowledge gaps as we experience a changing climate. This will require an enhanced understanding of transforming ecosystems and advanced adaptive management applications. The decadal occurrence of a dedicated symposium has served to summarize progress and focus future efforts to advance catfish science.

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Section: Ecology and Conservationmentioning

confidence: 94%

Catfish 2020, A Clear Vision of the Future

Porath

Kwak

Neely

et al. 2021

N American J Fish Manag

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Channel catfish and freshwater drum population demographics across four large Midwestern rivers

Whitten

DeBoer

Berry

et al. 2022

Journal of Freshwater Ecology

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Multi-index evaluation of fish habitat in a cascaded hydropower reservoir of the Yangtze River, China

Zheng,

Wang,

et al. 2024

Endang. Species. Res.

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Cascaded hydropower development in rivers has a greater negative impact on native fish than a single hydropower station. The effectiveness of commonly used measures to restore fish resources, such as ecological discharges, depends largely on reliable assessments of habitat quality. In this study, we developed a synthesized habitat quality index (SHQI) by combining the habitat suitability index (HSI) and habitat fragmentation indices to evaluate the fish habitat in the Longkaikou (LKK) reservoir between the Jinanqiao (JAQ) and LKK dams in the upper Yangtze River. We coupled a 2-dimensional physical habitat model and a fuzzy-logic habitat suitability model for spawning and juvenile Coreius guichenoti, an Endangered fish endemic to the Jinsha River basin. The impact of the JAQ reservoir flow and the impoundment level of the LKK reservoir were considered to analyze variation in habitat quality. The results revealed that habitat suitability and fragment conditions were, to some extent, spatially inconsistent. The SHQI suggested lentic areas could benefit juvenile fish more than lotic zones with higher quality but less connectivity. A higher impounded level of the LKK reservoir may be more favorable for juvenile fish in the lentic area. Only the lotic area was suitable for fish spawning, and a lower discharge from the JAQ reservoir and lower impounded level of the LKK reservoir could be more beneficial, with optimal values of 560 m3 s-1 and 1294 m, respectively. This study proposes a comprehensive assessment method for habitat quality that could provide scientific support for the conservation of fish resources and populations in cascaded hydropower developments.

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Comparing Channel Catfish Populations in the Fragmented Minnesota River

Cited by 3 publications

References 61 publications

Catfish 2020, A Clear Vision of the Future

Catfish 2020, A Clear Vision of the Future

Channel catfish and freshwater drum population demographics across four large Midwestern rivers

Multi-index evaluation of fish habitat in a cascaded hydropower reservoir of the Yangtze River, China

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