Marine Biology: An Ecological Approach
Appropriate for undergraduate majors and graduate students in marine biology and marine ecology, Marine Biology: An Ecological Approach emphasizes the ecological principles that govern marine life throughout all environments within the world's oceans. Its unique ecological approach adds real-world relevance by exploring how organisms interact within their individual ecosystems. The text is organized by habitat and each habitat receives detailed, in-depth coverage, giving instructors flexibility to focus on their particular areas of interest. The Fifth Edition is fully updated with the latest research data and topics, including expanded coverage of the human impact on oceans, oceanic dead zones, and coral reefs. In addition to Nybakken's engaging writing style, the text now offers enhanced pedagogy with new end-of-chapter summaries, a new four-color design to complement the art program, an art CD-ROM for instructors, and a text specific Companion Web site.
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The hypotheses for its occurrence include avoidance of predation, avoidance of
damaging ultraviolet light, change of position in the water column, and as a
mechanism to increase production and conserve energy. It is probable, as Haney
Hones or Decreased river flow 25 psu 20 psu 15 psu B - river Sea I A Low tide Or
Increased –P • B - 25 psu 20 psu 15 psu river flow | A Area of maximum salinity
change l —l- | l l | | —FIGURE 8.3 Change of salinity in an estuary with change in
blue-green algae Group of prokaryotic photosynthetic organisms of the kingdom
Monera. boiling point Temperature at which a liquid changes to a gas bottom-up
process Control of community structure by environmental factors or the prey.
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H A P T E R
SOME ECOLOGICAL PRINCIPLES
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