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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60° 40° 20° 0° 20° 40° 60° 80° 100° 120° 140° Polar 80° 70° 60° 50° 40° 30° 20°
10° 0° 10° 20° 30° Cold temperate 40° 50° 60° 70° Warm temperate masses. The
upper water mass (surface water mass) of the oceans includes all well-mixed ...
Successively deeper water layers are deflected even further with respect to those
immediately above them and move at slower speeds. ... The deep water mass is
isolated from the wind; therefore, its motion cannot be dependent on it.
FIGURE 2, 34 Thermal structure of temperate ocean water masses in two
Seasons, Temperature O *. o 0 o 10 winter and Summer, * . . . . . . showing the
relation- - 1 ships between nutrient concentration, temperature, density, and
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H A P T E R
SOME ECOLOGICAL PRINCIPLES
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