Background: FishBase.org is an on-line database of fish related data that has been cited over 1500 times in the fisheries literature. Length-weight relationships in fish traditionally employ the model, W(L) = aL b , where L is length and W is weight. Parameters a and b are catalogued by FishBase for a large number of sources and species. FishBase.org detects outliers in a plot of log(a) vs. b t...

Fish were collected from 16 sites on rivers in the Columbia River Basin (CRB) from September 1997 to April 1998 to document temporal and spatial trends in the concentrations of accumulative contaminants and to assess contaminant effects on the fish. Sites were located on the mainstem of the Columbia River and on the Snake, Willamette, Yakima, Salmon, and Flathead Rivers. Common carp (Cyprinus c...

Floodplains are among the world's most threatened ecosystems due to the pervasiveness of dams, levee systems, and other modifications to rivers. Few unaltered floodplains remain where we may examine their dynamics over decadal time scales. Our study provides a detailed examination of landscape change over a 60-year period (1945-2004) on the Nyack floodplain of the Middle Fork of the Flathead Ri...

Sedimentary features and amino-acid content are described for several lakes in the Anoka sand plain, east-central Minnesota, other lakes in Minnesota, Flathead Lake, Montana, Pyramid Lake, Nevada, and Catahoula Lake, Louisiana. The limnology of the Anoka Sand Plain lakes is related to the characteristics of the "gray" sandy calcareous Mankato drift of the Des Moines lobe which underlies much of...

The taxonomy of the fish genus Platycephalus Bloch, 1785 from Australia is revised following examination of all extant primary types of Australian species, including those previously synonymized. The following 16 Australian species, including a single new species, are recognized in this study: Platycephalus angustus Steindachner, 1866, Platycephalus aurimaculatus Knapp, 1987, Platycephalus bass...

The population genetic structure and historical demography of the flathead mullet Mugil cephalus were investigated using the mtDNA control region (CR) sequences (909-1015 bp) of 126 individuals collected from seven locations in the north-west Pacific between 2005 and 2007. Haplotype diversity (h = 0.9333-1.000) and nucleotide diversity (pi = 0.0046-0.1467) varied greatly among the sampling loca...