Algal flux affects the clearance rates of recently metamorphosed freshwater mussels

Mistry, Rakesh; Ackerman, Josef Daniel

doi:10.1007/s00027-016-0485-0

Cited by 13 publications

(12 citation statements)

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“…It has been reported that CR increased with increasing particle/algal flux either linearly using algal monoculture (vanden Byllaardt and Ackerman ; Mistry and Ackerman ) or until CR saturated using river seston (Mistry and Ackerman ). Unfortunately, comparisons with those studies are not possible because the highest flux used by vanden Byllaardt and Ackerman (; ~ 1047 mg m −2 s −1 based on ~ 7.2 × 10 12 cells m −2 h −1 and C. vulgaris diameter of 10 μ m; Bellinger and Sigee ) is considerably smaller than the lowest value used in the present study (~ 2500 mg m −2 s −1 ).…”

Section: Discussionmentioning

confidence: 99%

“…The relationship between TSS and velocity is also relevant because unionid CR increases with increasing velocity (vanden Byllaardt and Ackerman ; Mistry and Ackerman ), as do freshwater dreissenids (Ackerman , ) and marine bivalves (Wildish and Kristmanson ; Ackerman and Nishizaki ). Particle flux (i.e., J ; particles per unit time and area), which provides a manner in which to combine concentration ( C ) and velocity ( U ) as a single variable ( J = UC ), has been used to examine the CR of bivalves (i.e., vanden Byllaardt and Ackerman ; Mistry and Ackerman , ). A strong relationship between the CR of both juvenile and adult unionids and increasing algal flux has been found (vanden Byllaardt and Ackerman ; Mistry and Ackerman , ).…”

mentioning

confidence: 99%

“…Particle flux (i.e., J ; particles per unit time and area), which provides a manner in which to combine concentration ( C ) and velocity ( U ) as a single variable ( J = UC ), has been used to examine the CR of bivalves (i.e., vanden Byllaardt and Ackerman ; Mistry and Ackerman , ). A strong relationship between the CR of both juvenile and adult unionids and increasing algal flux has been found (vanden Byllaardt and Ackerman ; Mistry and Ackerman , ). This relationship followed a unimodal pattern, similar to a type II functional feeding response (Holling ), in response to increasing algal flux (vanden Byllaardt and Ackerman ; Mistry and Ackerman ).…”

mentioning

confidence: 99%

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Living the high turbidity life: The effects of total suspended solids, flow, and gill morphology on mussel feeding

Tuttle‐Raycraft

Ackerman

2019

Limnology & Oceanography

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Unionid mussels from clear‐water rivers are often found in turbid waters in which their feeding and reproductive efficiency should be impaired. We examined the feeding response of Lampsilis siliquoidea from a clear and turbid river in response to increased concentrations of total suspended solids (TSS) and water velocity in a funnel chamber and a recirculating flow chamber. Four TSS concentrations (0, 5, 20, and 100 mg L−1) and four velocities (0, 0.05, 0.15, and 0.25 m s−1) were used to create 16 experimental conditions corresponding to nine TSS flux (concentration × velocity) levels. TSS flux significantly affected clearance rates (CR); however, the relationship was complex. Increased TSS led to lower CR in mussels from clear and turbid river at all velocities; however, increases in velocity reduced the magnitude of the decline with respect to TSS. Overall, the turbid river mussels were less affected by increased TSS than those from the clear‐water rivers. The mussels from the turbid river also differed anatomically (i.e., greater palp:gill ratio; number of cilia per cirri; number of cirri cm−1; and thickness of palp cilia, and less cilia per unit area of palp) from the clear river animals. It is likely that these anatomical differences allow the mussels to feed more efficiently in turbid water, which explains the observed differences in CR response to TSS. These results demonstrate the importance of multistressor approaches in evaluating aquatic organisms, as well as providing a potential mechanism to explain how mussels thrive in turbid rivers.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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Living the high turbidity life: The effects of total suspended solids, flow, and gill morphology on mussel feeding

Tuttle‐Raycraft

Ackerman

2019

Limnology & Oceanography

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“…Filters were frozen and extracted for chlorophyll a using an ethanol extraction method and chlorophyll a concentration was quantified spectrophotometrically using a correction for pheophytin (Jespersen & Christoffersen, ). Clearance rate was calculated following the methods of Vanden Byllaardt and Ackerman () and Mistry and Ackerman () as the control‐adjusted change in chlorophyll a per hour per g (wet weight) of individual dwarf wedgemussel.…”

Section: Methodsmentioning

confidence: 99%

A weight‐of‐evidence approach for defining thermal sensitivity in a federally endangered species

Galbraith

Blakeslee

Spooner

et al. 2020

Aquatic Conservation

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Managing for threatened and endangered species under changing environmental conditions is a challenge faced by resource managers worldwide. Lack of basic knowledge of the biology and habitat requirements of these species can contribute to this difficulty but is exacerbated by the limitations of working with rare species (i.e. few individuals) or unrefined and non‐lethal methods for evaluating stress. A weight‐of‐evidence approach was used to evaluate the thermal biology of the federally endangered dwarf wedgemussel (Alasmidonta heterodon), using cumulative results from multiple experimental assessments, co‐occurring species, and their host fish to begin defining the thermal limits and optimal conditions for the species. Results suggest that dwarf wedgemussel and its host fish are thermally sensitive species compared with other Atlantic‐slope mussels, with a lower critical thermal maximum (CTM) and the selection of reduced temperatures during choice experiments. Physiological studies resulted in a lack of statistical significance, primarily owing to low power, which was a function of sample size – an unavoidable problem when studying rare species. Given these limitations, thermal choice and CTM may be more useful end points than physiological processes such as clearance and respiration rates when dealing with sample‐size limitations. These results suggest that management strategies that avoid exposing dwarf wedgemussel and its thermally sensitive host fish to extreme temperatures could be important for species conservation.

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“…At our latitude, E. complanata glochidia are released in late June-early July (Cyr, 2009;Matteson, 1948) and require 2-3 weeks in a suitable fish host to develop into juveniles (Matteson, 1948). Newly released juveniles drop to the sediments, where they start pedal feeding on deposited organic matter (Gatenby et al, 1996;Mistry & Ackerman, 2017;Yeager et al, 1994). Duration of the parasitic stage varies with water temperature (e.g.…”

Section: Early Juvenile Growth Declines With Agementioning

confidence: 99%

The growth of juvenile native mussels (Elliptio complanata) in lakes varies with sediment characteristics and site exposure

Cyr

2019

Freshwater Biology

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Unionid mussels are among the largest and longest‐lived freshwater invertebrates and can play an important role in these ecosystems. They are also one of the most endangered groups of organisms. The juvenile stage is a particularly vulnerable part of mussel life history and is one of the most poorly known. I compared the growth of young Elliptio complanata at 17 nearshore sites, in shallow (polymictic) and stratified lake basins, along gradients of sediment characteristics and site exposure (effective fetch). At each site, the growth of six to 14 small (20–68 mm) mussels collected on the sediment surface was measured, using internal growth lines. The growth of very young endobenthic mussels (22–40 mm) was also measured on four to six mussels at each of two sites. Juveniles spend several years in the sediments, and I found that during this period growth is not constant but declines rapidly with age. Shifts in δ15N signatures suggest that juveniles change their habitat use towards a more planktonic baseline around the time of maturation, when they reach a length of 30–50 mm. Identical δ13C signatures in juveniles and adults suggest that both rely on food of planktonic origin, whether deposited or suspended. The growth of juvenile mussels varies in a complex but predictable manner with sediment characteristics and wind‐driven physical forces. Growth was highest in fine sediments with low organic content, in highly organic but coarse sediments, and in protected nearshore areas with low effective fetch. Interestingly, I also found high growth rates at exposed nearshore areas with fine sediments, suggesting that areas where bottom topography creates a refuge from currents and waves may provide particularly good conditions for the early growth of juvenile mussels. Some parts of the shoreline may be more important than others for native mussel populations, and if we can identify those, they may warrant additional protection.

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Algal flux affects the clearance rates of recently metamorphosed freshwater mussels

Cited by 13 publications

References 51 publications

Living the high turbidity life: The effects of total suspended solids, flow, and gill morphology on mussel feeding

Living the high turbidity life: The effects of total suspended solids, flow, and gill morphology on mussel feeding

A weight‐of‐evidence approach for defining thermal sensitivity in a federally endangered species

The growth of juvenile native mussels (Elliptio complanata) in lakes varies with sediment characteristics and site exposure

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