scholarly journals Mussel habitat in excavated flood-channels in the Ibi River with reference to initial ground heights and elapsed years.

2017 ◽  
Vol 19 (2) ◽  
pp. 131-142
Author(s):  
Shigeya NAGAYAMA ◽  
Morihiro HARADA ◽  
Shiro SAGAWA ◽  
Yuichi KAYABA
Keyword(s):  
Mussel Habitat

scholarly journals Freshwater Mussel Bed Habitat in an Alluvial Sand-Bed-Material-Dominated Large River: A Core Flow Sediment Refugium?

Diversity ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 174
Author(s):  
Alan D. Christian ◽  
Andrew J. Peck ◽  
Ryan Allen ◽  
Raven Lawson ◽  
Waylon Edwards ◽  
...  
Keyword(s):  
Flow Direction ◽  
Freshwater Mussel ◽  
Physical Habitat ◽  
Stream Power ◽  
Mussel Bed ◽  
Mean Velocity ◽  
Core Flow ◽  
White River ◽  
Bed Material ◽  
Mussel Habitat

Habitat degradation, organismal needs, and other effects influencing freshwater mussel declines have been subject to intense focus by conservationists for the last thirty plus years. While researchers have studied the physical habitat requirements and needs of mussels in small- to medium-sized rivers with variable levels of success, less research has been conducted on mussel habitat in larger non-wadeable rivers, especially at the reach scale, where core flow environmental conditions provide and maintain habitat for freshwater mussels. We designed a quasi-experimental observational field study to examine seven hydrologic energy and material variables laterally and longitudinally at Current and Extirpated mussel bed habitat reaches in lower White River, Arkansas, a large non-wadeable, sand-bed-material-dominated river. As expected, lateral and longitudinal hydrologic variable differences were identified within a reach. Mean velocity, bed velocity, the Froude number, and stream power were all significantly lower at Current mussel bed habitat stations within a sampling reach. Energy regime differences in shear stress and, marginally, stream power were higher at Extirpated mussel bed habitat reaches. Several factors emerged as important to mussel habitat in the White River. First, bed velocity warrants further exploration in terms of both flow strength and flow direction. Second, bedload appears to be the primary contributor to mussel habitat but requires additional exploration within the context of core and secondary flow pathway interactions. The combined empirical evidence from our study supports the flow refugium concept identified for mussel habitats in smaller systems but expands the concept to large non-wadeable streams and includes reach-scale refuge from sediment transport conditions.

Can larval snapper, Pagrus auratus, smell their new home?

2012 ◽  
Vol 63 (10) ◽  
pp. 898 ◽  
Author(s):  
C. A. Radford ◽  
C. J. Sim-Smith ◽  
A. G. Jeffs
Keyword(s):  
Chemical Cues ◽  
Fish Larvae ◽  
Good Evidence ◽  
Artificial Seawater ◽  
Olfactory Cues ◽  
Seagrass Habitat ◽  
Pagrus Auratus ◽  
Temperate Fish ◽  
First Time ◽  
Mussel Habitat

The ability to find a suitable settlement habitat after a pelagic larval period represents a significant challenge to marine settlement-stage larvae, and the mechanisms by which they achieve this are poorly understood. There is good evidence that olfactory cues are used by some coral reef fish larvae to locate suitable settlement habitats; however, the same understanding is lacking for marine temperate fish. Here we show for the first time that the larvae of an important commercial and recreational marine temperate fish, Pagrus auratus, can use olfactory cues to orient to appropriate settlement habitat. Using pairwise choice experiments, naive hatchery reared fish were offered water collected from a range of habitats in the Kaipara Harbour, an important nursery area for P. auratus. Larvae selected to swim towards water taken from over seagrass beds, their preferred settlement habitat, than water taken from the harbour entrance, Asian date mussel habitat, artificial seawater or artificial seawater in which seagrass had been soaked. The preference by the fish for water from the seagrass habitat over artificial seawater in which seagrass had been soaked strongly suggests that chemical cues from sources other than seagrass, such as from prey or conspecifics present in the seagrass habitat, may also be involved.

Hydrologic characteristics of freshwater mussel habitat: novel insights from modeled flows

2018 ◽  
Vol 37 (2) ◽  
pp. 343-356
Author(s):  
C. Ashton Drew ◽  
Michele Eddy ◽  
Thomas J. Kwak ◽  
W. Gregory Cope ◽  
Tom Augspurger
Keyword(s):  
Freshwater Mussel ◽  
Mussel Habitat

scholarly journals Water and sediment quality survey of threatened and endangered freshwater mussel habitat in the Chipola River Basin, Florida

2008 ◽  
Vol 6 ◽  
pp. 95-107
Author(s):  
JM Hemming ◽  
PV Winger ◽  
H Rauschenberger ◽  
K Herrington ◽  
P Durkee ◽  
...  
Keyword(s):  
River Basin ◽  
Sediment Quality ◽  
Freshwater Mussel ◽  
Water And Sediment ◽  
Water And Sediment Quality ◽  
Mussel Habitat

Relationship between the spatial distribution of freshwater mussels (Bivalvia: Unionidae) and the hydrological variability of rivers

1995 ◽  
Vol 73 (4) ◽  
pp. 663-671 ◽  
Author(s):  
Joanne Di Maio ◽  
Lynda D. Corkum
Keyword(s):  
Spatial Distribution ◽  
Relative Abundance ◽  
Multivariate Analyses ◽  
Freshwater Mussels ◽  
A Priori ◽  
Drainage Basins ◽  
Hydrological Variability ◽  
River Types ◽  
Different Types ◽  
Mussel Habitat

Hydrological variability refers to the differences in the patterns of flow among rivers. Drainage basins in southwestern Ontario and southeastern Michigan were selected a priori using records of flow variability. Hydrological variability was then used as a macrohabitat measure of mussel habitat. The distribution and relative abundance of mussels were determined in drainage basins of two hydrologically different types, three event responsive (i.e., hydrologically flashy) and three stable (i.e., hydrologically stable). Eleven event and 10 stable sites were sampled once each from 18 to 30 August 1993. Fifteen species of unionids were found in the study area (13 in event rivers and 9 in stable rivers), with different relative abundances in each regime. Multivariate analyses revealed that there are distinct mussel communities based on the hydrological variability of the river. Amblema plicata, Pyganodon grandis, and Fusconaia flava characterized event sites and Elliptio dilatata, Lampsilis radiata, and Lasmigona costata characterized stable sites. We propose that some unionids can be associated with river types with specific hydrological features and their distribution can be predicted using flow-related stream attributes.

scholarly journals Hydrothermal Vent Mussel Habitat Chemistry, Pre- and Post-Eruption at 9°50′North on the East Pacific Rise

2008 ◽  
Vol 27 (1) ◽  
pp. 169-175 ◽  
Author(s):  
Heather A. Nees ◽  
Tommy S. Moore ◽  
Katherine M. Mullaugh ◽  
Rebecca R. Holyoke ◽  
Christopher P. Janzen ◽  
...  
Keyword(s):  
Hydrothermal Vent ◽  
East Pacific Rise ◽  
East Pacific ◽  
Mussel Habitat

Hydraulic modeling of mussel habitat at a bridge-replacement site, Allegheny River, Pennsylvania, USA

2010 ◽  
Vol 221 (3) ◽  
pp. 540-554 ◽  
Author(s):  
John W. Fulton ◽  
Chad R. Wagner ◽  
Megan E. Rogers ◽  
Gregory F. Zimmerman
Keyword(s):  
Hydraulic Modeling ◽  
Replacement Site ◽  
Mussel Habitat

The process domains concept as a framework for fish and mussel habitat in a coastal plain river of southeastern North America

2015 ◽  
Vol 75 ◽  
pp. 484-496 ◽  
Author(s):  
Matthew J. Troia ◽  
Lance R. Williams ◽  
Marsha G. Williams ◽  
Neil B. Ford
Keyword(s):  
North America ◽  
Coastal Plain ◽  
Process Domains ◽  
Mussel Habitat

scholarly journals Mapping and Modeling the Distribution, Abundance, and Habitat Associations of the Endangered Fat Threeridge in the Apalachicola River System

2019 ◽  
Vol 10 (2) ◽  
pp. 653-675
Author(s):  
Adam J. Kaeser ◽  
Reuben Smit ◽  
Michael Gangloff
Keyword(s):  
River Mouth ◽  
River System ◽  
Habitat Associations ◽  
Side Scan Sonar ◽  
Habitat Monitoring ◽  
Fine Sediments ◽  
Smooth Plane ◽  
Apalachicola River ◽  
Future Population ◽  
Mussel Habitat

Abstract Large, Coastal Plain rivers of the southeastern United States contain some of the most diverse freshwater communities in North America; however, surveying the fauna of these large rivers presents numerous logistical and statistical challenges. We assessed the contemporary distribution, abundance, and habitat associations of the endangered fat threeridge mussel Amblema neislerii throughout the Apalachicola River system in northwestern Florida. To achieve this goal, we used side scan sonar to map the distribution of mesohabitats and conducted a system-wide, quantitative survey to define mussel habitat associations. We then used habitat and mussel data to develop predictive models of spatial distribution and to estimate the abundance of fat threeridge across the entire Apalachicola River system. Findings revealed a broadly distributed (i.e., 128 river kilometers occupied), robust population of approximately 9 million individuals (95% CI = 5–12 million), with a center of distribution (i.e., where abundance and occurrence were highest) approximately 45–80 river kilometers upstream of the river mouth. Fat threeridge primarily occupy fine sediment mesohabitats characterized by smooth/plane bedforms that are clearly definable via sonar habitat mapping. We hypothesize that this species may be particularly sensitive to the availability of stable, fine sediments during one or more critical life history phases and that the availability of this habitat may explain its restricted distribution in tributary rivers. Our study provides a quantitative, replicable foundation upon which future population and habitat monitoring can be based.

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