Prioritizing native migratory fish passage restoration while limiting the spread of invasive species: A case study in the Upper Mississippi River

Cooper, Arthur R.; Infante, Dana M.; O’Hanley, J.R.; Yu, Hao; Neeson, Thomas M.; Brumm, Kyle J.

doi:10.1016/j.scitotenv.2021.148317

Cited by 24 publications

(8 citation statements)

References 92 publications

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“…The challenge of future development of sh passage is selective passage design to prioritize native migratory sh species without enabling the spread of invasive species (Cooper et al 2021;Kerr et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Characterizing spatial patterns among freshwater fishes and shrimps of the Poso River (Sulawesi, Indonesia) using DNA barcoding

Wibowo,

Kurniawan,

Prakoso

et al. 2024

Preprint

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Fish biodiversity assessments play a crucial role in identifying potential threats, and the overall health of aquatic ecosystems. Poso River in Sulawesi, Indonesia presents a complex scenario where changes in fish biodiversity can be influenced by habitat alteration, the introduction of non-native fish species and overfishing. In this study, we assessed fish biodiversity in Poso River to gain a better understanding of the challenges to its aquatic biodiversity. This knowledge is critical for enhancing fisheries management and conservation programs, and is essential for improving the fishway system integrated into hydropower dams. The biodiversity study utilized a comprehensive methodology that encompassed both traditional taxonomic approaches and DNA barcoding, specifically targeting the mitochondrial Cytochrome C Oxidase Subunit-1 (COI) gene for accurately identify species and validate their boundaries. It was conducted in upstream, environmental flows of hydropower dams, and downstream areas of the river. We found 27 species of fish in the Poso River, including both native and non-native species. Two endangered species were also observed. DNA barcoding was performed to examine species boundaries and identity. The fish population in the Poso River is dominated by non-native species, accounting for 85.70% of the total population. The upstream area had the highest fish abundance and diversity, while the downstream area had the lowest. There was no significant difference in species richness and diversity across different locations and seasons. The dominance of non-native species in the Poso River necessitates the improvement of existing fish passages equipped in hydropower dams through the development of selective fish passages that can block the distribution of these invasive species. This research highlights the critical issue of non-native species proliferation and its potential threat they pose to native fish populations, providing valuable insights for conservation and management efforts in Indonesia and similar ecosystems worldwide.

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Section: Discussionmentioning

confidence: 99%

Characterizing spatial patterns among freshwater fishes and shrimps of the Poso River (Sulawesi, Indonesia) using DNA barcoding

Wibowo,

Kurniawan,

Prakoso

et al. 2024

Preprint

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“…When contemplating the use of dam removal as a conservation approach, managers may need to consider how enhanced passage may influence nonnative species (Cooper et al. 2021).…”

Section: Discussionmentioning

confidence: 99%

“…However, during extended period surveys, the species was detected in all river strata below the Milford Dam, indicating not only an expansion in its range but also an increase in relative abundance. When contemplating the use of dam removal as a conservation approach, managers may need to consider how enhanced passage may influence nonnative species (Cooper et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Fish Assemblages in the Penobscot River: A Decade after Dam Removal

et al. 2023

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The Penobscot River Restoration Project in Maine was a large river rehabilitation project that culminated in the removal of the two lowermost dams and improvements to fish passage on several remaining dams. Fish assemblages were surveyed for 3 years prior to rehabilitation, 3 years after rehabilitation, and 8 years after rehabilitation. Approximately 475 km of shoreline were sampled via boat electrofishing, yielding 133,394 individual fish of 41 species. The greatest shifts in assemblage structure occurred immediately after dam removal in formerly impounded sections, with an increased prevalence of riverine and migratory species. Long‐term sampling documented changes within tributaries and tidally influenced river segments, where large schools of adult and young‐of‐the‐year alosines increased in abundance. Upstream of the lowermost dam, the river remains dominated by lacustrine species, while adult anadromous fishes continue to be most abundant immediately downstream of the lowermost dam. Our results provide increased evidence that dam removals result in altered fish assemblages, which are now dominated by riverine and anadromous species in previously impounded habitats. Alosines in the Penobscot River have exhibited the greatest long‐term response to river restoration efforts.

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“…Controlling the transport and spread of exotic species is an effective and economical approach to limiting the negative effects of species invasion and restoring habitats for native species (Havel et al ., 2015). For example, conservations of native migratory freshwater fishes in the upper Mississippi River were prioritized over the exotic species by estimating the costs and benefits of dam removal and construction of fish passes while limiting the transport of exotic species (Cooper et al ., 2021). Construction of freshwater‐protected areas is a well‐recognized strategy for freshwater biodiversity conservation.…”

Section: Discussionmentioning

confidence: 99%

Whether including exotic species alters conservation prioritization: a case study in the Min River in southeastern China

Deng

et al. 2023

Journal of Fish Biology

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Conservation practices from the perspective of functional diversity (FD) and conservation prioritization need to account for the impacts of exotic species in freshwater ecosystems. This work first simulated the influence of exotic species on the values of FD in a schemed mechanistic model, and then a practical case study of conservation prioritization was performed in the Min River, the largest river in southeastern China, to discuss whether including exotic species alters prioritization. The mechanistic model revealed that exotic species significantly altered the expected FD if the number of exotic species occupied 2% of the community. Joint species distribution modelling indicated that the highest FD occurred in the west, northwest and north upstreams of the Min River. Values of FD in 64.69% of the basin decreased after the exotic species were removed from calculation. Conservation prioritization with the Zonation software proved that if first the habitats of exotic species were removed during prioritization, 62.75% of the highest prioritized areas were shifted, average species representation of the endemic species was improved and mean conservation efficiency was increased by 7.53%. Existence of exotic species will significantly alter the metrics of biodiversity and the solution for conservation prioritization, and negatively weighting exotic species in the scope of conservation prioritization is suggested to better protect endemic species. This work advocates a thorough estimate of the impacts of exotic species on FD and conservation prioritization, providing complementary evidence for conservation biology and valuable implications for local freshwater fish conservation.

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Prioritizing native migratory fish passage restoration while limiting the spread of invasive species: A case study in the Upper Mississippi River

Abstract: The version in the Kent Academic Repository may differ from the final published version. Users are advised to check http://kar.kent.ac.uk for the status of the paper. Users should always cite the published version of record.

Cited by 24 publications

References 92 publications

Characterizing spatial patterns among freshwater fishes and shrimps of the Poso River (Sulawesi, Indonesia) using DNA barcoding

Characterizing spatial patterns among freshwater fishes and shrimps of the Poso River (Sulawesi, Indonesia) using DNA barcoding

Fish Assemblages in the Penobscot River: A Decade after Dam Removal

Whether including exotic species alters conservation prioritization: a case study in the Min River in southeastern China

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