Nekton

Nekton
Author :
Publisher : Springer Science & Business Media
Total Pages : 430
Release :
ISBN-10 : 9789401013246
ISBN-13 : 9401013241
Rating : 4/5 (46 Downloads)

Synopsis Nekton by : Yu.G. Aleyev

1. Nekton as an ecomorphological type of biont The term nekton was suggested and used for the first time in 1890 by E. Haeckel in his book Plankton-Studien. Etymologically the word nekton derives from the Greek VTJKTTJP, i.e. swimming. As Haeckel defined it, nekton describes collectively all swimming animals that are 'free to choose their path', i.e. can resist a strong current of water and, distinct from planktonic animals, go where they wish. While giving a general idea of the dividing line between plankton and nekton, Haeckel's definition, which has played an important role in shaping our ideas about nekton, today no longer provides a sufficient basis for ecological and functional morphological investigations, since it affords no possibility of quantitatively assessing either the boundary between plankton and nekton or that between nekton and other ecomorphological types of biont. Thus Parin (1968), proceeding from Haeckel's principle, believes that in the epipelagic zone of the ocean the minimum size of nektonic fishes with a well-developed capacity for active swimming may be between 15 and 30 cm, as fishes shorter than 15 cm are unable to counter oceanic currents. Meanwhile young Leucaspius (Leucaspius delineatus) only 1.5 cm long, observed by this writer in ponds near Moscow proved capable of active horizontal migrations across the entire body of water, which, if Haeckel's definition is accepted, brings the border between planktonic and nektonic fish in this case to between 1.5 and 2.0 cm.

Zooplankton and Nekton: Gatekeepers of the Biological Pump

Zooplankton and Nekton: Gatekeepers of the Biological Pump
Author :
Publisher : Frontiers Media SA
Total Pages : 164
Release :
ISBN-10 : 9782889639823
ISBN-13 : 2889639827
Rating : 4/5 (23 Downloads)

Synopsis Zooplankton and Nekton: Gatekeepers of the Biological Pump by : Rainer Kiko

This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.

Oceanography And Marine Biology

Oceanography And Marine Biology
Author :
Publisher : CRC Press
Total Pages : 659
Release :
ISBN-10 : 9780203501726
ISBN-13 : 0203501721
Rating : 4/5 (26 Downloads)

Synopsis Oceanography And Marine Biology by : R. N. Gibson

The series is an essential reference text for research workers and students in all fields of marine science and related subjects. An ever increasing interest in oceanography and environmental issues makes it especially relevant.

Estuarine Ecology

Estuarine Ecology
Author :
Publisher : John Wiley & Sons
Total Pages : 578
Release :
ISBN-10 : 0471062634
ISBN-13 : 9780471062639
Rating : 4/5 (34 Downloads)

Synopsis Estuarine Ecology by : John W. Day, Jr.

This textbook covers the physical and chemical aspects of estuaries, the biology and ecology of key organisms, the flow of organic matter through estuaries, and human interactions, such as the environmental impact of fisheries on estuaries and the effects of global climate change on these important ecosystems. Each chapter will begin with basic concepts and then move on to describing applications and current practice. This new edition is being authored by a team of world experts from the estuarine science community.

Marine Biology

Marine Biology
Author :
Publisher : Academic Press
Total Pages : 643
Release :
ISBN-10 : 9780123757241
ISBN-13 : 012375724X
Rating : 4/5 (41 Downloads)

Synopsis Marine Biology by :

Elements of Physical Oceanography is a derivative of the Encyclopedia of Ocean Sciences, Second Edition and serves as an important reference on current physical oceanography knowledge and expertise in one convenient and accessible source. Its selection of articles—all written by experts in their field—focuses on ocean physics, air-sea transfers, waves, mixing, ice, and the processes of transfer of properties such as heat, salinity, momentum and dissolved gases, within and into the ocean. Elements of Physical Oceanography serves as an ideal reference for topical research. References related articles in physical oceanography to facilitate further research Richly illustrated with figures and tables that aid in understanding key concepts Includes an introductory overview and then explores each topic in detail, making it useful to experts and graduate-level researchers Topical arrangement makes it the perfect desk reference

Trophic Dynamics of Marine Nekton and Zooplankton Within the Northern California Current Pelagic Ecosystem

Trophic Dynamics of Marine Nekton and Zooplankton Within the Northern California Current Pelagic Ecosystem
Author :
Publisher :
Total Pages : 228
Release :
ISBN-10 : UCSD:31822034439679
ISBN-13 :
Rating : 4/5 (79 Downloads)

Synopsis Trophic Dynamics of Marine Nekton and Zooplankton Within the Northern California Current Pelagic Ecosystem by : Todd William Miller

The Northern California Current (NCC) ecosystem exhibits extreme seasonal, interannual and interdecadal shifts in the abiotic environment and shifts in primary and higher production. This variability is also apparent in the spatial structure of the ecosystem with nearshore-shelf waters (