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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Phoronopsis Owenia Zostera Yoldia Macoma Molpadia Sediment stabilizers
environment in similar ways. For example, in Chapter 1 we noted the division of
animals into opportunistic or equilibrium species. That is one functional
Coarse-grained sediments hold less water by capillary action than fine-grained
sediments. Circulation of water and oxygen is greater in coarse sediments and
reduced in fine-grained sediments. In very fine grained sediments, such as mud,
Wave action Air Sedimentation Emersion External CaCO3 skeleton rivers
discharge a huge volume of fresh water, and reefs are absent (see Figure 9.1).
On a smaller scale, this occurs in many areas of the tropics where rivers and
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H A P T E R
SOME ECOLOGICAL PRINCIPLES
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