Effects of temperature and photoperiod on lure display and glochidial release in a freshwater mussel

Landis, Andrew M. Gascho; Mosley, Tyler L.; Haag, Wendell R.; Stoeckel, James A.

doi:10.1899/11-082.1

Cited by 27 publications

(12 citation statements)

References 27 publications

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“…hypoxia) because conglutinates are always composed of immature larvae or eggs (e.g. Aldridge & McIvor, 2003;Gascho Landis et al, 2012). U. pictorum and U. tumidus are able to use a wide range of host fishes (Table 2), while U. tumidiformis is a host specialist using only Iberian Squalius species (Reis & Araujo, 2009;Reis, Collares-Pereira & Araujo, 2014).…”

Section: (B) Unionidaementioning

confidence: 99%

Conservation status of freshwater mussels in Europe: state of the art and future challenges

et al. 2016

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Freshwater mussels of the Order Unionida provide important ecosystem functions and services, yet many of their populations are in decline. We comprehensively review the status of the 16 currently recognized species in Europe, collating for the first time their life-history traits, distribution, conservation status, habitat preferences, and main threats in order to suggest future management actions. In northern, central, and eastern Europe, a relatively homogeneous species composition is found in most basins. In southern Europe, despite the lower species richness, spatially restricted species make these basins a high conservation priority. Information on freshwater mussels in Europe is unevenly distributed with considerable differences in data quality and quantity among countries and species. To make conservation more effective in the future, we suggest greater international cooperation using standardized protocols and methods to monitor and manage European freshwater mussel diversity. Such an approach will not only help conserve this vulnerable group but also, through the protection of these important organisms, will offer wider benefits to freshwater ecosystems.

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Section: (B) Unionidaementioning

confidence: 99%

Conservation status of freshwater mussels in Europe: state of the art and future challenges

et al. 2016

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“…Changes in the natural thermal regime can also influence seasonal growth cycles and reproductive behaviour (e.g. gamete development and glochidial release) that are cued by environmental factors such as temperature and photoperiod (Baker & Hornbach, 2001;Galbraith & Vaughn, 2009; Gascho Landis, Mosley, Haag, & Stoeckel, 2012;Watters & O'Dee, 2000). In addition to direct effects, changes to the natural temperature regime may impair mussel recruitment by affecting the timing and success of glochidial release.…”

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confidence: 99%

Evaluating the upper thermal limits of glochidia for selected freshwater mussel species (Bivalvia: Unionidae) in central and east Texas, and the implications for their conservation

Khan

Hart

Dudding

et al. 2019

Aquatic Conservation

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Understanding the temperature tolerances of organisms is critical because the thermal regimes of freshwater ecosystems are changing globally. Native freshwater mussels are sensitive to increasing water temperatures because of their physiology and unique life history. Detailed knowledge on lethal temperatures for mussels has been limited to less than 5% of the species known to occur in North America, and little is known about the thermal tolerances of mussel species from rivers within the south‐western USA. To determine the effects of elevated water temperature on mussels, the upper thermal tolerances of larvae (glochidia) for the following species across four basins in Texas (Neches, Guadalupe, San Antonio, and Colorado) were tested: Amblema plicata, Cyclonaias necki, Fusconaia mitchelli, Lampsilis bracteata, Lampsilis hydiana, Lampsilis satura, Lampsilis teres, and Obovaria arkansasensis. Glochidia were acclimated to 27°C across a range of experimental temperatures (30–39°C) in 24‐h standard acute laboratory tests. The median lethal temperature (LT50) among glochidia averaged 32.4°C and ranged from 26.9 to 36.4°C. Thermal tolerances differed significantly among and within species, and by season. Comparing these results with current water temperatures in central and east Texas indicated that populations of the focal species studied are at risk from rising environmental temperatures and, as a consequence, their long‐term viability will be challenging in future years.

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“…5A , 5B ). Mantle lures are regarded as their primary method of infecting fish hosts ( Haag & Warren, 2000 ; Barnhart, Haag & Roston, 2008 ; Gascho Landis et al, 2012 ) and a gravid female may display hers for weeks to months ( Kraemer, 1970 ; Haag & Warren, 2003 ). During an elicited host fish attack on mantle lure-displaying Lampsilis spp.…”

Section: Discussionmentioning

confidence: 99%

Evolution of diverse host infection mechanisms delineates an adaptive radiation of lampsiline freshwater mussels centered on their larval ecology

Hewitt

Haponski

Foighil

2021

PeerJ

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North American watersheds contain a high diversity of freshwater mussels (Unionoida). During the long-lived, benthic phase of their life cycle, up to 40 species can co-occur in a single riffle and there is typically little evidence for major differences in their feeding ecology or microhabitat partitioning. In contrast, their brief parasitic larval phase involves the infection of a wide diversity of fish hosts and female mussels have evolved a spectrum of adaptations for infecting host fish with their offspring. Many species use a passive broadcast strategy: placing high numbers of larvae in the water column and relying on chance encounters with potential hosts. Many other species, including most members of the Lampsilini, have a proactive strategy that entails the use of prey-mimetic lures to change the behavior of the hosts, i.e., eliciting a feeding response through which they become infected. Two main lure types are collectively produced: mantle tissue lures (on the female’s body) and brood lures, containing infective larvae, that are released into the external environment. In this study, we used a phylogenomic approach (ddRAD-seq) to place the diversity of infection strategies used by 54 North American lampsiline mussels into an evolutionary context. Ancestral state reconstruction recovered evidence for the early evolution of mantle lures in this clade, with brood lures and broadcast infection strategies both being independently derived twice. The most common infection strategy, occurring in our largest ingroup clade, is a mixed one in which mimetic mantle lures are apparently the predominant infection mechanism, but gravid females also release simple, non-mimetic brood lures at the end of the season. This mixed infection strategy clade shows some evidence of an increase in diversification rate and most members use centrarchids (Micropterus & Lepomis spp.) as their predominant fish hosts. Broad linkage between infection strategies and predominant fish host genera is also seen in other lampsiline clades: worm-like mantle lures of Toxolasma spp. with sunfish (Lepomis spp.); insect larvae-like brood lures (Ptychobranchus spp.), or mantle lures (Medionidus spp., Obovaria spp.), or mantle lures combined with host capture (Epioblasma spp.) with a spectrum of darter (Etheostoma & Percina spp.) and sculpin (Cottus spp.) hosts, and tethered brood lures (Hamiota spp.) with bass (Micropterus spp.). Our phylogenetic results confirm that discrete lampsiline mussel clades exhibit considerable specialization in the primary fish host clades their larvae parasitize, and in the host infection strategies they employ to do so. They are also consistent with the hypothesis that larval resource partitioning of fish hosts is an important factor in maintaining species diversity in mussel assemblages. We conclude that, taking their larval ecology and host-infection mechanisms into account, lampsiline mussels may be legitimately viewed as an adaptive radiation.

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Effects of temperature and photoperiod on lure display and glochidial release in a freshwater mussel

Cited by 27 publications

References 27 publications

Conservation status of freshwater mussels in Europe: state of the art and future challenges

Conservation status of freshwater mussels in Europe: state of the art and future challenges

Evaluating the upper thermal limits of glochidia for selected freshwater mussel species (Bivalvia: Unionidae) in central and east Texas, and the implications for their conservation

Evolution of diverse host infection mechanisms delineates an adaptive radiation of lampsiline freshwater mussels centered on their larval ecology

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