Results 271 to 280 of about 190,003 (311)
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Comparative ecology of submersed grass beds in freshwater, estuarine, and marine environments1

Limnology and Oceanography, 1988
Worldwide, there are 500–700 species of submersed angiosperms adapted to freshwater and estuarine environments compared with 50 species adapted to marine waters. In their evolution from freshwater ancestors, seagrasses have undergone extensive anatomical changes (e.g. reduction in floral and leaf structures, reduction of xylem tissue with a lacunal gas
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Ecological impact of alien marine fishes: insights from freshwater systems based on a comparative review

Hydrobiologia, 2018
We review the literature of marine non-indigenous fishes (NIF) in order to summarize information on their ecological impacts and to compare successful invading freshwater fishes with those in marine habitats. An increasing number of marine NIF have been observed colonizing new areas through a suite of different pathways (the main ones being inter ...
Erik Arndt   +2 more
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Global biodiversity decline of marine and freshwater fish: A cross-national analysis of economic, demographic, and ecological influences

Social Science Research, 2008
Abstract We test competing hypotheses from political–economic and neo-liberal theories about the effects of economic growth and urbanization on a neglected, but important, indicator of environmental health: aquatic biodiversity. We analyze cross-national data on the number of threatened fish species within national territorial waters using negative ...
Rebecca Clausen, Richard York
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Modeling the Impacts of UV-B Radiation on Ecological Interactions in Freshwater and Marine Ecosystems

1994
Recent data demonstrating global increases in biologically damaging UV-B radiation raise the need for knowledge of how natural communities and ecosystems will respond to these environmental changes. These responses are likely to differ in terrestrial versus aquatic environments, and in freshwater versus marine environments due to fundamental ...
Horacio E. Zagarese, Craig E. Williamson
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Special Volume of Marine and Freshwater Biodiversity and Ecological Conservation (Title page)

Zootaxa, 2022
YI-TA SHAO   +3 more
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Technological and Ecological Problems Limiting the Production of Freshwater and Marine Fishes in Latin America

1976
Most of Latin America, with the exception of northern Mexico, Chile, Argentina, Uruguay, and the southern tip of Brazil, is located between the Tropic of Cancer and the Tropic of Capricorn. The tropical oceans have been considered to be less productive than those of the Temperate Zone because of certain environmental factors.
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The metabolic theory of ecology and the role of body size in marine and freshwater ecosystems

2007
Introduction Body size is the single most important axis of biodiversity. Organisms range in body size over about 22 orders of magnitude, from tiny bacteria such as Mycoplasma weighing 10 13 g to giant Sequoia trees weighing 10 g. Such size variation is a pervasive feature of aquatic ecosystems, where the size spectrum spans at least 20 orders of ...
James H. Brown   +2 more
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Chemical ecology in aquatic systems. Special Issue. Marine and Freshwater Behaviour and Physiology 40.

2007
Il volume raccoglie alcuni contributi a un workshop "CHEAS: Chemical ecology in aquatic systems" (16-18 Ottobre 2006 ).
GHERARDI, FRANCESCA, BERTI, ROBERTO
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