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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This is particularly true if the large adults are also sedentary. However, both
animals that are permanent members of the plankton and those that as adults are
sedentary or sessile on the bottom have planktotrophic larvae. Since adults in the
... of myctophids and stomiatoid fishes from the central North Pacific Ocean
suggest that the fishes have a seasonal reproductive cycle and spawn in the
spring and summer. Juveniles do not appear to undergo vertical migration as do
The adults of the dominant polychaetes had a refuge in size from the predators.
Therefore, the dense assemblage was dominated by large and long-lived
species. This community probably persists long periods because of several co-
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H A P T E R
SOME ECOLOGICAL PRINCIPLES
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