Sediment, Land Use, and Freshwater Mussels: Prospects and Problems

Box, Jayne Brim; Mossa, Joann

doi:10.2307/1468011

Cited by 151 publications

(54 citation statements)

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“…Deposit feeding is the consumption of particles from the sediment. Descriptions of unionid behavior and the role of unionids in aquatic ecosystems emphasize the suspension mode of feeding (e.g., McMahon 1991; Strayer et al 1994Strayer et al , 1999Box and Mossa 1999).…”

Section: Patterns Of 15 N Enrichment In Bivalves-the Observed Enrichmmentioning

confidence: 99%

“…By contrast, McMahon (1991) lists phytoplankton, bacteria, and fine detritus as the chief components of the freshwater bivalve diet, with deposit feeding as a potential, and perhaps underestimated, supplement. This dichotomy of opinion should not be surprising given the common assertion that the ecology of freshwater bivalves is poorly understood (e.g., Bogan 1993;Neves 1993Neves , 1997Box and Mossa 1999).…”

Section: Patterns Of 15 N Enrichment In Bivalves-the Observed Enrichmmentioning

confidence: 99%

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Bivalve diets in a midwestern U.S. stream: A stable isotope enrichment study

Raikow

Hamilton

2001

Limnology & Oceanography

165

141

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This study examined a community of stream bivalves (unionids and fingernail clams) in a second-order woodland stream in southern Michigan using both the natural abundance of 15 N and a 6-week whole-stream 15 N enrichment experiment, as part of the Lotic Intersite Nitrogen eXperiment (LINX). Objectives included addressing what made up the diet of these bivalves and whether suspended algae consumed by bivalves were derived from pelagic phytoplankton imported from an upstream lake or attached algae sloughed from instream surfaces. Within the examination of bivalve diets, we considered whether suspension-and/or deposit-feeding modes were employed and whether bivalves selectively assimilated the algal and microbial portions of bulk material they ingested. All 12 unionid species reached a level of 15 N enrichment greater than the bulk suspended organic matter. Sphaerium striatinum (Sphaeriidae) were enriched to levels greater than all presumed food sources. Suspended algae were derived both from sloughed epilithon and pelagic phytoplankton originating from lentic waters upstream. A mixing model suggested that unionids were consuming 80% deposited and 20% suspended material. Alternatively, these bivalves were preferentially assimilating the highly enriched living component of suspended and/or benthic organic matter rather than assimilating the bulk material. These results advance our understanding of freshwater bivalve-feeding ecology, which is necessary if conservation efforts of these increasingly threatened organisms are to succeed.

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Section: Patterns Of 15 N Enrichment In Bivalves-the Observed Enrichmmentioning

confidence: 99%

Section: Patterns Of 15 N Enrichment In Bivalves-the Observed Enrichmmentioning

confidence: 99%

Bivalve diets in a midwestern U.S. stream: A stable isotope enrichment study

Raikow

Hamilton

2001

Limnology & Oceanography

165

141

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“…The geomorphology of stream systems has been studied for some time; however, impacts of geomorphic disturbance on biotic systems have only recently been given attention (Reger, 1980;Shankman, 1993;Brown et al, 1998;Box and Mossa, 1999). noted that the complexities of geomorphic systems, hydrology, and biotic communities have inhibited many researchers from studying system interactions.…”

Section: Introductionmentioning

confidence: 99%

“…noted that the complexities of geomorphic systems, hydrology, and biotic communities have inhibited many researchers from studying system interactions. Box & Mossa (1999) examined the way in which channel change, and concomitant changes in sediment dynamics, can affect unionid mussels. Rabeni & Jacobson (1993) investigated the influence of certain geomorphic and fluvial processes on centrarchid densities and found that when the geomorphic system is altered by landscape changes, habitat diversity is usually reduced.…”

Section: Introductionmentioning

confidence: 99%

Geomorphic Disturbance and its Impact on Darter (Teleostomi: Percidae) Distribution and Abundance in the Pearl River Drainage, Mississippi

2004

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We examined channel and point bar changes over time in the Pearl River, a meandering, Coastal Plain stream in Mississippi and Louisiana. We interpreted extreme changes in bar area as evidence of channel instability and related this to the diversity and abundance of darters in the river. Darters were less diverse and abundant in more disturbed reaches in comparison with relatively undisturbed reaches. Darter abundance was positively correlated with proximity to extreme bar-area changes. The relationship between channel instability and darter abundance observed here points to the importance of landscape level approaches to in-stream habitat management. The results suggest that river management practices that prevent or mitigate extreme changes in channel or sediment dynamics should be adopted for the benefit of benthic communities.

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“…Flora and fauna are also affected. Suspended sediment can cause vegetation (Jackson andStarrett 1959, Robel 1961) and animals (Karr et al 1985, Cuker 1993, Box and Mossa 1999, Bolen and Robinson 2003 to shift in community composition and structure as well as decline in population and diversity due to a decreased photic zone, altered water chemistry, and physical effects on respiration, foraging, and reproduction. Sedimentation can result in unstable substrates for vegetation and invertebrates, homogenize the substrate habitat, and supply A major source of sediment in some reservoirs is shoreline erosion (Windorn 2000).…”

mentioning

confidence: 99%