Conservation of migratory fishes in freshwater ecosystems

McIntyre, Peter B.; Liermann, Catherine Reidy; Childress, Evan S.; Hamann, Ellen J.; Hogan, J. Derek; Januchowski‐Hartley, Stephanie R.; Koning, Aaron A.; Neeson, Thomas M.; Oele, Daniel L.; Pracheil, Brenda M.

doi:10.1017/cbo9781139627085.012

Cited by 46 publications

(61 citation statements)

References 146 publications

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“…This study records evidence that greater protected area size and habitat heterogeneity enhance biodiversity outcomes for invertebrates in ponds and fish in wetlands (Pryke, Samways, & De Saedeleer, 2015;Koning, 2018). In riverine systems, many fish species use different habitats and parts of the basin at different life stages, often migrating significant distances to maximize population potential (Mcintyre et al, 2016). Protection of each habitat and connecting pathways is essential for their survival and recruitment (Hermoso, Filipe, Segurado, & Beja, 2018).…”

Section: Lesson 2: Protected Areas Need To Be Of Sufficient Size and mentioning

confidence: 99%

Protected areas and freshwater biodiversity: a novel systematic review distils eight lessons for effective conservation

Acreman

Hughes

Arthington

et al. 2019

CONSERVATION LETTERS

119

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Protected areas are a global cornerstone of biodiversity conservation and restoration. Yet freshwater biodiversity is continuing to decline rapidly. To date there has been no formal review of the effectiveness of protected areas for conserving or restoring biodiversity in rivers, lakes, and wetlands. We present the first assessment using a systematic review of the published scientific evidence of the effectiveness of freshwater protected areas. Systematic searches returned 2,586 separate publications, of which 44 provided quantitative evidence comprising 75 case studies. Of these, 38 reported positive, 25 neutral, and 12 negative outcomes for freshwater biodiversity conservation. Analysis revealed variable relationships between conservation effectiveness and factors such as taxa assessed, protected area size and characteristics, International Union for Conservation of Nature (IUCN) protected area category, and ecoregion. Lack of effectiveness was attributed to many anthropogenic factors, including fishing (often with a lack of law enforcement), water management (abstraction, dams, and flow regulation), habitat degradation, and invasive non‐native species. Drawing on the review and wider literature we distil eight lessons to enhance the effectiveness of protected areas for freshwater biodiversity conservation. We urge policymakers, protected area managers, and those who fund them to invest in well‐designed research and monitoring programs and publication of evidence of protected area effectiveness.

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Section: Lesson 2: Protected Areas Need To Be Of Sufficient Size and mentioning

confidence: 99%

Protected areas and freshwater biodiversity: a novel systematic review distils eight lessons for effective conservation

Acreman

Hughes

Arthington

et al. 2019

CONSERVATION LETTERS

119

View full text Add to dashboard Cite

show abstract

“…Direct and indirect anthropogenic disturbances are altering freshwater ecosystems worldwide, often with deleterious effects on the fish and fisheries they support (Carpenter, Stanley, & Vander Zanden, 2011;McIntyre, Reidy Liermann, Childress et al, 2016;McIntyre, Reidy Liermann, & Revenga, 2016;Vörösmarty et al, 2010). Migratory fishes are particularly vulnerable to these disturbances.…”

Section: Introductionmentioning

confidence: 99%

“…Migratory fishes are particularly vulnerable to these disturbances. For example, nursery areas used by many migratory fishes are increasingly degraded by habitat fragmentation, pollution, invasive species and climate change (Brazner et al, 2007;McIntyre, Reidy Liermann, Childress et al, 2016;McIntyre, Reidy Liermann, & Revenga, 2016), while dams and road crossings block access to spawning sites (Auer, 1996;Neeson et al, 2015;Pringle, 2003).…”

Section: Introductionmentioning

confidence: 99%

Growth and recruitment dynamics of young‐of‐year northern pike: Implications for habitat conservation and management

Oele

Gaeta

Rypel

et al. 2018

Ecology of Freshwater Fish

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Maximising growth during the months after hatching is critical for fishes to surpass predator gape limits, make ontogenetic shifts in diet and increase overwinter survival. Constraints on growth during early life stages can have population and community-level implications, yet are rarely addressed by habitat restoration or fishery management efforts. To assess environmental controls on larval growth rates, we sampled adult and young-of-year (YOY) northern pike (Esox lucius) emigrating from spawning grounds in six tributaries of Lake Michigan. We found that YOY growth rates differed significantly among natal streams, in parallel with variation in hatch date and water temperatures. Within each stream, individual growth rates were positively associated with trophic position, as measured by nitrogen isotope enrichment and gut contents. Earlier hatching individuals also grew faster, but the strength of this relationship varied with warming water temperatures (i.e., 21-27°C). Ageing of adult spawners indicated no differences among streams in average growth rates later in life. Our findings suggest that restoration efforts should replicate ecological conditions found in habitats producing large numbers of fast-growing YOY. Key habitat attributes include adequate water level throughout the spring spawning season, and stable, warm water temperature conditions. Providing these environments during early life history could enhance the robustness of northern pike populations by boosting fitness from hatching to emigration to adult habitats.

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“…or leave immediately and the offspring (or embryos)—along with their population's future—remain (Lucas and Baras ; McIntyre et al. ). Consequently, responses by early life stages and population dynamics of migratory fishes are strongly dependent on spawning site selection that can variably affect growth, survival, and recruitment of offspring.…”

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confidence: 99%

Spawning Locations within and among Tributaries Influence Flannelmouth Sucker Offspring Experience

Cathcart

Gido

Brandenburg³

2019

Trans Am Fish Soc

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Migratory fishes often spawn across broad spatial scales to limit intraspecific interactions among mature and immature individuals, leading to long‐distance movements of both adults and offspring. Thus, offspring are potentially exposed to a range of environmental conditions throughout their development that affect growth, survival, and recruitment. Migratory suckers (family Catostomidae) can be used to test spatial variation in early life stage experiences for iteroparous fishes. We use the Flannelmouth Sucker Catostomus latipinnis, a fish that is endemic to the American Southwest, to illustrate how larval and juvenile stages are affected by the distance of upstream spawning migration in tributaries that vary in flow regime and habitat availability (i.e., perennial versus intermittent streams). Remote detection of PIT‐tagged migrating adults indicated that spawning and larval rearing sites were distributed over 32 km within McElmo Creek, a perennial tributary to the San Juan River, Utah. Physical sampling of an upstream intermittent tributary, the Mancos River, New Mexico showed that spawning adults—and then larvae—were restricted to within 1 km of the main‐stem river. Quantile regression demonstrated recruitment of larvae to the juvenile stage was significantly (i.e., up to 2 weeks) faster in more upstream reaches of the perennial tributary, potentially due to more constant thermal regimes. Spatial differences in animal community structure at sites with larval Flannelmouth Sucker indicated that the potential for predation and competition was greatest in upstream reaches. Small, rare, and even intermittent tributaries concentrate spawning activity that dictates larval sucker experiences. Conserving, maintaining, and enhancing connectivity via flows synchronized with spawning and rearing are critical steps to protect migratory suckers in arid environments.

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Conservation of migratory fishes in freshwater ecosystems

Cited by 46 publications

References 146 publications

Protected areas and freshwater biodiversity: a novel systematic review distils eight lessons for effective conservation

Protected areas and freshwater biodiversity: a novel systematic review distils eight lessons for effective conservation

Growth and recruitment dynamics of young‐of‐year northern pike: Implications for habitat conservation and management

Spawning Locations within and among Tributaries Influence Flannelmouth Sucker Offspring Experience

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