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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rings2^ South Pacific central gyre zone (subtropical) OCEANIC NEKTON
FIGURE 3.3. --~ FIGURE 2, 46 * *- A schematic representa\ tion of the path of the
Gulf Stream and the distribution and movement of rings. (From Oceanus, Vol. 17.
Position of tion H sitio Sec Upper jaw –\\ | s o o \\ WoW o | (c) Mouth open 2.
Mouth closed, tongue elevated, throat muscles Contract (b) feeding is somewhat
different. These animals have relatively smaller mouths with short baleen. They
Winter tion) for any organism living in the sand, because the sand is opaque to
light and reflects or absorbs it in the surface layers. Desiccation is not a problem
as long as the beach sand is fine enough to hold water by capillary action during
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H A P T E R
SOME ECOLOGICAL PRINCIPLES
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