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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After Raymont, 1980. bloom will occur because of the increased nutrients. This
bloom declines in late fall, due to decreasing light and increased mixing. In the
winter, low light levels and deep mixing of the water column keep productivity low
winter, but the permanent, large difference in density between the lighted surface
waters of the tropics and the deep waters does not permit mixing; this leaves
most of the tropics with low nutrient levels and productivity. Vertical mixing also ...
1–5 Turf algae 1–6 10–50 Zooxanthellae 0.6 10–50 Sand algae 0.1–0.5 10–50
Phytoplankton 0.1–0.5 10–50 Seagrasses 1–7 0–40 Source: From Larkham,
1983. the reef, sequestering significant amounts of the limiting nutrients. The
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H A P T E R
SOME ECOLOGICAL PRINCIPLES
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