Host Fish Associations for Two Highly Imperiled Mussel Species from the Southwestern United States: Cyclonaias necki (Guadalupe Orb) and Fusconaia mitchelli (False Spike)

Dudding, Jack; Hart, Michael; Khan, Jennifer; Robertson, Clinton R.; Lopez, Roel; Randklev, Charles R.

doi:10.31931/fmbc.v22i1.2019.12-19

Freshwater Mollusk Biology and Conservation

2019

DOI: 10.31931/fmbc.v22i1.2019.12-19

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Host Fish Associations for Two Highly Imperiled Mussel Species from the Southwestern United States: Cyclonaias necki (Guadalupe Orb) and Fusconaia mitchelli (False Spike)

Jack Dudding,

Michael Hart,

Jennifer Khan

et al.

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Cited by 2 publications

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Reproductive phenology and the influence of temperature in two sympatric New Zealand freshwater mussel species

Melchior,

Clearwater,

Collier

2023

Mar. Freshw. Res.

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Context Phenology plays a key role in shaping population dynamics, community structure and evolutionary adaptations. For freshwater mussels that rely on a parasitic larval (glochidia) phase on fish, shifts in reproductive phenology driven by environmental conditions may result in mismatches between glochidia release and host fish availability. Aims We investigated intra- and interspecific reproductive timing variations in sympatric Echyridella aucklandica and E. menziesii, and identified thermal cues (accumulated degree days, ADD) associated with brooding and glochidia maturation. Methods Brooding activity and glochidia maturation were assessed fortnightly–monthly over 1 year within four New Zealand streams. Results The previously unknown phenology of E. aucklandica showed earlier brooding (May–July) and longer gravidity (9–11 months) than for E. menziesii (August; 6–7 months). Both species exhibited peak brooding in late austral spring–summer (November–December). ADD played a key role in regulating the timing of brooding onset in both species, as evidenced by the narrow ADD range observed across sites, and the relationship between ADD and brooding onset in both species. Conclusion The demonstrated link between ADD and reproductive phenology has broad implications in the context of climate change. Specifically, it raises concerns about potential timing mismatches in glochidia release and host-fish availability, which could affect the survival and reproductive success of freshwater mussels.

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Reproductive phenology and the influence of temperature in two sympatric New Zealand freshwater mussel species

Melchior,

Clearwater,

Collier

2023

Mar. Freshw. Res.

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Use of Native and Nonnative Fish Hosts by the Freshwater Mussel Anodonta californiensis (California Floater) in the Columbia River Basin

Maine

O’Brien²

2022

Malacologia

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Host Fish Associations for Two Highly Imperiled Mussel Species from the Southwestern United States: Cyclonaias necki (Guadalupe Orb) and Fusconaia mitchelli (False Spike)

Cited by 2 publications

References 58 publications

Reproductive phenology and the influence of temperature in two sympatric New Zealand freshwater mussel species

Reproductive phenology and the influence of temperature in two sympatric New Zealand freshwater mussel species

Use of Native and Nonnative Fish Hosts by the Freshwater Mussel Anodonta californiensis (California Floater) in the Columbia River Basin

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