Vertical Distribution of Bottom Fishes-II

The vertical distribution of juvenile salmon (Oncorhynchus spp.) and associated fishes in the Columbia River plume

Simultaneous trawling at surface and at depth at one location off the Columbia River, Oregon, in June 2000 identified the depth distribution of juvenile salmonids and associated fishes. Juvenile salmon off the Columbia River were distributed primarily near the surface, within the upper 12 m. Highest densities of subyearling chinook salmon (Oncorhynchus tshawytscha) off the Columbia River were a...

Vertical distribution of microbial communities in a perennially stratified Arctic lake with saline, anoxic bottom waters

Meromictic lakes are useful biogeochemical models because of their stratified chemical gradients and separation of redox reactions down the water column. Perennially ice-covered meromictic lakes are particularly stable, with long term constancy in their density profiles. Here we sampled Lake A, a deep meromictic lake at latitude 83°N in High Arctic Canada. Sampling was before (May) and after (A...

Geographical Distribution of Central American Freshwater Fishes

Modelling Seasonal Distribution of Pelagic Marine Fishes

The distribution of pelagic marine fishes and invertebrates varies seasonally. However, information on the seasonal variation of the distribution of most pelagic marine fishes and invertebrates is scarce. In this paper, seasonal changes in distribution ranges of commercially exploited pelagic fishes and invertebrates are predicted based on the existing Sea Around Us Project distribution, a pred...

Vertical distribution of ozone trends

Variability and trends in total and vertically resolved stratospheric ozone D. Brunner, J. Staehelin, J. A. Maeder, I. Wohltmann, and G. E. Bodeker Institute for Atmospheric and Climate Science, ETH Zurich, Switzerland Alfred Wegner Institute, Potsdam, Germany National Institute of Water and Atmospheric Research (NIWA), New Zealand now at: Empa – Materials Science and Technology, Dübendorf, Swi...