The Ecology of Deep-sea Coral and Sponge Habitats of the Central Aleutian Islands of Alaska PDF Download
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Author: Robert P. Stone
Publisher:
ISBN:
Category : Deep sea corals
Languages : en
Pages : 60
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Book Description
Author: Robert P. Stone
Publisher:
ISBN:
Category : Deep sea corals
Languages : en
Pages : 60
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Book Description
Author: Robert P. Stone
Publisher:
ISBN:
Category : Deep sea corals
Languages : en
Pages : 52
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Book Description
The first in situ exploration of deep-sea coral habitat in the central Aleutian Islands in 2002 confirmed expectations that had been based on fishery bycatch and research survey records which indicate corals are widespread, diverse, and abundant. This paper reports observations from analysis of video collected during 2003 and 2004 in a study area that expanded the range of earlier observations to depths beyond current fishing activities (1000 m) and encompassed the entire central Aleutian Island region. Video of the seafloor was collected at 17 sites with a manned submersible to depths of 365 m and a remotely operated vehicle to 2947 m. Corals, sponges, and other emergent epifauna were widely distributed throughout the study area and present at all depths. Changes in density and species richness were observed at depths of 400-700 m, with abundance and diversity increasing as depth decreased. The distribution of individual fishes, crabs, and octopods was examined relative to emergent epifauna: 63% of the fishes, crabs, and octopods were found in the same sampled video frames as were corals, 69% of them were found in the same frames with sponges, and 55% of them were found in the same frames with "other" emergent epifauna. Most species at depths
Author: Santiago Herrera
Publisher: Frontiers Media SA
ISBN: 2889760693
Category : Science
Languages : en
Pages : 336
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Book Description
Author: Mary C. Fabrizio
Publisher: Frontiers Media SA
ISBN: 2832506925
Category : Science
Languages : en
Pages : 268
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Book Description
Author: Cheryl M. Woodley
Publisher: John Wiley & Sons
ISBN: 0813824117
Category : Medical
Languages : en
Pages : 613
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Book Description
Coral disease is quickly becoming a crisis to the health and management of the world’s coral reefs. There is a great interest from many in preserving coral reefs. Unfortunately, the field of epizootiology is disorganized and lacks a standard vocabulary, methods, and diagnostic techniques, and tropical marine scientists are poorly trained in wildlife pathology, veterinary medicine, and epidemiology. Diseases of Coral will help to rectify this situation.
Author: J. Murray Roberts
Publisher: Cambridge University Press
ISBN: 0521884853
Category : Coral reefs and islands
Languages : en
Pages : 351
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Book Description
"This broad-ranging treatment is the first to synthesise current understanding of all types of cold-water coral, covering their ecology, biology, paleontology and geology."--Back cover.
Author:
Publisher: Elsevier
ISBN: 0323992595
Category : Science
Languages : en
Pages : 294
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Approx.300 pagesApprox.300 pages
Author: Pål Buhl-Mortensen
Publisher: Frontiers Media SA
ISBN: 2889713903
Category : Science
Languages : en
Pages : 197
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Book Description
Author: Robert P. Stone
Publisher:
ISBN:
Category : Sponges
Languages : en
Pages : 206
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Book Description
Furthermore, sponges are extremely fragile and easily damaged by contact with fishing gear. High rates of fishery bycatch clearly indicate a strong interaction between existing fisheries and sponge habitat. Bycatch in fisheries and fisheries-independent surveys can be a major source of information on the location of the sponge fauna, but current monitoring programs are greatly hampered by the inability of deck personnel to identify bycatch. This guide contains detailed pecies descriptions for 112 sponges collected in Alaska, principally in the central Aleutian Islands. It addresses bycatch identification challenges by providing fisheries observers and scientists with the information necessary to adequately identify sponge fauna.Using that identification data, areas of high abundance can be mapped and the locations of indicator species of vulnerable marine ecosystems can be determined.
Author:
Publisher:
ISBN:
Category : Electronic journals
Languages : en
Pages : 374
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Book Description
