The North American Freshwater Migratory Fish Database (<scp>NAFMFD</scp>): Characterizing the migratory life histories of freshwater fishes of Canada, the United States and Mexico

Dean, Emily M.; Cooper, Arthur R.; Wang, Lizhu; Daniel, Wesley M.; David, Solomon R.; Ernzen, Clayton; Gido, Keith B.; Hale, Edward A.; Haxton, Tim; Kelso, William E.; Léonard, Nancy J.; Lido, Chris; Margraf, Joseph; Porter, Michael D.; Pennock, Casey A.; Propst, David L.; Ross, Jared; Staudinger, Michelle D.; Whelan, Gary; Infante, Dana M.

doi:10.1111/jbi.14367

Cited by 12 publications

(12 citation statements)

References 56 publications

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“…Additionally, it expands the geographic and taxonomic understanding of the functional roles of migratory fishes. Given the ubiquity of suckers and other migratory freshwater fishes throughout North America (Dean et al, 2022), it is likely that similar fish migrations are contributing large amounts of resources to recipient ecosystems used for spawning. However, the prevalence of dams, culverts and other migration barriers that fragment fluvial corridors has likely diminished resource subsidies from migratory fishes by reducing migratory fish populations and restricting access to historical spawning habitats (Mattocks et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Salmon of the Southeastern U.S.: Sucker migrations deliver resource subsidies to oligotrophic stream

White

Wheeler

Hudson

et al. 2022

Ecology of Freshwater Fish

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The ability for migratory fishes to move commonly limiting resources such as nitrogen (N) and phosphorus (P) between discrete environments can have pronounced effects on recipient ecosystems. To further understand the geographic and taxonomic scope of migratory fish resource subsidies, we quantified N and P subsidies delivered by adfluvial suckers (Smallmouth Buffalo, Ictiobus bubalus) via excretion, eggs and carcasses to a small oligotrophic stream during their annual spawning migration. We also compared nutrient inputs from migrant buffalo with watershed nutrient export to assess the likelihood that delivered nutrients were ecologically important. We estimated that approximately 67,000 buffalo delivered 730 kg of N and 80 kg of P to Citico Creek as a result of excretion and egg subsidies across three migration waves. We estimated that carcasses delivered negligible amounts of N and P due to extremely low retention. The ratio of migrant inputs (M w ) to system export (E w ; M w /E w ) varied amongst three migration waves and compounds (i.e. dissolved inorganic nitrogen, ammonium and soluble reactive phosphorus), with values for M w /E w ranging from 0.25 to 5.10, reflecting the potential of nutrient subsidies to exceed nutrients exported from the system under certain conditions. Our findings suggest that suckers have the potential to deliver large resource subsidies to their spawning habitats and that these subsidies may be ecologically important, thus warranting additional consideration of the functional relevance of nongame fishes and their migrations.

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Section: Discussionmentioning

confidence: 99%

Salmon of the Southeastern U.S.: Sucker migrations deliver resource subsidies to oligotrophic stream

White

Wheeler

Hudson

et al. 2022

Ecology of Freshwater Fish

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“…We characterized migratory species in river fish assemblages using the fish sample data coupled with data from the North American Freshwater Migratory Fish Database (NAFMFD; Dean et al, 2022). Species were assigned a status, pattern, and behavior from NAFMFD.…”

Section: Methodsmentioning

confidence: 99%

“…These patterns include diadromy (use of saltwater and freshwater habitats), potamodromy (use of wholly freshwater habitats), or both. If the species was diadromous, the species was also associated with one or more of the following behaviors which describes the timing and direction of a migration of a life stage between separate habitats: anadromous, semianadromous, catadromous, semicatadromous, and amphidromous (see Dean et al, 2022).…”

Section: Methodsmentioning

confidence: 99%

“…T A B L E 1 Summary of the total richness of migratory statuses and patterns from NAFMFD (Dean et al, 2022) T A B L E 2 Median value of migratory life history traits (relative abundance, %) by ecoregion along with if a trait was favored within a given ecoregion based on the ecoregional median value being above the median value across all ecoregions, that is, the conterminous USA (indicated in bold).…”

Section: Influence Of Natural Landscape Factors Human Land Uses and R...mentioning

confidence: 99%

“…ScienceBase (Dean et al, 2022; https://doi.org/10.5066/ P9WDLLP0). Some of the fish data used in the study are subject to restrictions.…”

Section: Data Availability Statementmentioning

confidence: 99%

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Cumulative effects of dams on migratory fishes across the conterminous United States: Regional patterns in fish responses to river network fragmentation

Dean

Infante

et al. 2023

River Research & Apps

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Globally, dams fragment river networks, threatening migratory fishes which require access to distinct habitats to complete their life cycles. Efforts to understand how cumulative effects of multiple dams affect migratory fishes across large regions, such as a country or continent, could help to identify locations for connectivity‐enhancing actions to conserve migratory fishes. To address this, we evaluated cumulative effects of dams on migratory fishes in rivers across nine ecoregions of the conterminous USA. First, using fish data from thousands of sites (N = 45,989), we summarized ecoregional patterns in assemblages, quantifying the number of migratory species comprising assemblages, showing the prominence of potamodromous species across the large region as well as differences in migratory life history traits among ecoregions. Next, we compared the importance of a set of river network fragmentation metrics that captured influences of multiple dams in networks versus other anthropogenic landscape stressors and natural landscape factors that impact migratory fishes by ecoregion. We found that migratory fishes were more sensitive to cumulative dam effects than other stressors including urbanization and agriculture in the eastern USA. To further identify specific effects of environmental variables on potamodromous fishes, we conducted Boosted Regression Trees analysis in the eastern ecoregions. Our results suggested that the key natural influences on river fishes included catchment area as well as river baseflow and air temperature, suggesting that migratory fishes may be affected by changing climate. Additionally, we found that downstream dams were more influential than other human stressors to potamodromous fishes, underscoring the importance of enhancing connectivity within river networks to conserve migratory fishes. Collectively, our results provide new insights in identifying threats to migratory fish species across the USA, providing information that can aid in conserving this vulnerable but ecologically and socioeconomically important group of fishes.

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FishPass sortable attribute database: Phenological, morphological, physiological, and behavioural characteristics related to passage and movement of Laurentian Great Lakes fishes

Benoit,

Zielinski,

Swanson

et al. 2023

Journal of Great Lakes Research

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The North American Freshwater Migratory Fish Database (NAFMFD): Characterizing the migratory life histories of freshwater fishes of Canada, the United States and Mexico

Cited by 12 publications

References 56 publications

Salmon of the Southeastern U.S.: Sucker migrations deliver resource subsidies to oligotrophic stream

Salmon of the Southeastern U.S.: Sucker migrations deliver resource subsidies to oligotrophic stream

Cumulative effects of dams on migratory fishes across the conterminous United States: Regional patterns in fish responses to river network fragmentation

FishPass sortable attribute database: Phenological, morphological, physiological, and behavioural characteristics related to passage and movement of Laurentian Great Lakes fishes

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