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Reef fish communities in channel axe...

Foley, Kimberly Ann.

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Reef fish communities in channel axes along a cross-shelf gradient in southwestern Puerto Rico.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Reef fish communities in channel axes along a cross-shelf gradient in southwestern Puerto Rico./
作者:	Foley, Kimberly Ann.
面頁冊數:	86 p.
附註:	Source: Masters Abstracts International, Volume: 42-04, page: 1219.
Contained By:	Masters Abstracts International42-04.
標題:	Biology, Oceanography. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1418249
ISBN:	0496230271

Reef fish communities in channel axes along a cross-shelf gradient in southwestern Puerto Rico.
Foley, Kimberly Ann.

Reef fish communities in channel axes along a cross-shelf gradient in southwestern Puerto Rico. - 86 p.

Source: Masters Abstracts International, Volume: 42-04, page: 1219.

Thesis (M.S.)--University of Puerto Rico, Mayaguez (Puerto Rico), 2004.

A cross shelf gradient sample design was applied to examine the role of microhabitat (1m2), water motion, rugosity, and topographic complexity on the reef fish community composition. Data on 35 species was analyzed using Detrended Correspondence Analysis to identify species groups according to habitat type and shelf position. Species associations were noted based on shelf stratum and exposure zones within strata, as Leeward zones were found to be distinct from the other exposure zones. Grass habitats, located in Leeward zones of reef strata, supported a high abundance of commercially important species and were found to be distinct from other microhabitats. Water motion was lowest in the Middle Shelf and characterized strata from one another, while rugosity and topographic complexity distinguished exposure zones across strata. Fish communities were found to be distributed based on a complex relationship of biotic factors as well as both microhabitat and shelf position.

ISBN: 0496230271Subjects--Topical Terms:

783691
Biology, Oceanography.

Reef fish communities in channel axes along a cross-shelf gradient in southwestern Puerto Rico.
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520 $a A cross shelf gradient sample design was applied to examine the role of microhabitat (1m2), water motion, rugosity, and topographic complexity on the reef fish community composition. Data on 35 species was analyzed using Detrended Correspondence Analysis to identify species groups according to habitat type and shelf position. Species associations were noted based on shelf stratum and exposure zones within strata, as Leeward zones were found to be distinct from the other exposure zones. Grass habitats, located in Leeward zones of reef strata, supported a high abundance of commercially important species and were found to be distinct from other microhabitats. Water motion was lowest in the Middle Shelf and characterized strata from one another, while rugosity and topographic complexity distinguished exposure zones across strata. Fish communities were found to be distributed based on a complex relationship of biotic factors as well as both microhabitat and shelf position.
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