Colonization of bedrock by freshwater mussels (Bivalvia: Unionidae)

From: The American Midland Naturalist | Date: January 1, 1999| Author: | Copyright information

ABSTRACT.-We document the occurrence of freshwater mussels living on bedrock, a substrate generally considered to be unsuitable. We found 54 individuals of six species in this habitat. Our observations support the hypothesis that substrate stability is an important component of mussel habitat.

INTRODUCTION

Freshwater mussels may occupy a variety of substrate types (Coker et al., 1921), which has added to the difficulty in predicting their distribution and abundance at small spatial scales (Strayer, 1981; Holland-Bartels, 1990; Strayer and Ralley, 1993). Some substrates, however, are ...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

Vertical migration, orientation, aggregation, and fecundity of the freshwater mussel Lampsilis siliquoidea (1).
; The decline in freshwater mussels makes it imperative that more...siliquoidea. INTRODUCTION Freshwater mussels of the Families Unionidae...Due to their feeding habits, freshwater mussels are used frequently for detecting...
Bulking up mussels ; Scientists grow mussels and replace them in their habitat to act as water quality monitors.
; ...here a year ago, collecting female freshwater mussels from the creek. Now, the biologists...biology at Missouri State University. "Freshwater mussels are pushing that average lower. What...pollutants. Over the years, populations of freshwater mussels have dramatically dropped ...
Freshwater mussel (Bivalvia: Unionidae) survey of the Brouilletts Creek basin in Illinois and Indiana.
; ...habitat, Wabash River ********** Freshwater mussels (Bivalvia: Unionidae) are a vital...madtoms (Noturus spp.). In addition, freshwater mussels help stabilize stream substrate against...effects of floods. North American freshwater mussels have undergone a drastic decline...
METAMORPHOSIS OF UTTERBACKIA IMBICILIS GLOCHIDIA ON BLUEGILL SUNFISH IN STREAM WATER VERSUS CONTROL WATER.(Brief Article)
; ...approximately 300 species of Native Freshwater mussels in the United States are extinct...or of special concern, Therefore, freshwater mussels are one of the most endangered groups...studies the early life stages of freshwater mussels and how they are affected by pollution...
PEARL POLICE NET MUSSEL RUSTLER; PEARLS OF WISDOM.(News)
; ...fishermen. He said: The biggest killer of freshwater mussels used to be pollution but now casual...them open. 10 PEARLS OF WISDOM 1 Freshwater mussels can live between 80 and 100 years...they will grow for several months. 8 Freshwater mussels are not normally eaten - they taste...
New Oyster Cult
; ...that suck oxygen out of the water. FRESHWATER MUSSELS The US Fish and Wildlife Service...nationwide that could be helped by freshwater mussels. The primary goal is to bolster dwindling...populations (nearly 70 percent of freshwater mussels are endangered or threatened), but...
Prozac pollutes Ohio waterways, menaces mussels.
; ...in streams and rivers, endangering freshwater mussels, scientists said yesterday. Many...minute amounts of Prozac cause female freshwater mussels to release larvae early, dooming...In the study, scientists placed freshwater mussels into water containing between 0.3...
Police operation nets a massive haul of black-market pearls.
; ...across Scotland. Fishing for rare freshwater mussels was outlawed in 1998 amid concerns...cent of the global population of freshwater mussels. They are among the rarest in the...250 items containing pearls from freshwater mussels. SNH said the jewellers concerned...
News: Pearl poachers kill off river mussels NATURE WATCH A mollusc which plays a vital role in keeping rivers clean is under threat, writes John Vincent
; ...Legislation providing full protection for freshwater mussels - which can live for up to 100 years...the first of its kind in Britain. Freshwater mussels need clean, fast-flowing rivers in...he said. "Although not poisonous, freshwater mussels are extremely unpalatable and are...
Freshwater mussels sought by poachers.
; ...biologically and commercially important freshwater mussels. Three Tennessee men have been charged...door. The policeman observed bags of freshwater mussels stowed in the pickup bed and alerted...desirable mussels species. Not all freshwater mussels are of commercial value he said...