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Habitat Preference and Spatial Inter...

Zacharias, Joshua Philip.

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Habitat Preference and Spatial Interactions of the Northwest Atlantic Skate Complex.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Habitat Preference and Spatial Interactions of the Northwest Atlantic Skate Complex./
作者:	Zacharias, Joshua Philip.
面頁冊數:	120 p.
附註:	Source: Masters Abstracts International, Volume: 52-04.
Contained By:	Masters Abstracts International52-04(E).
標題:	Aquatic sciences. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1550829
ISBN:	9781303666995

Habitat Preference and Spatial Interactions of the Northwest Atlantic Skate Complex.
Zacharias, Joshua Philip.

Habitat Preference and Spatial Interactions of the Northwest Atlantic Skate Complex. - 120 p.

Source: Masters Abstracts International, Volume: 52-04.

Thesis (M.S.)--State University of New York at Stony Brook, 2013.

Increasingly targeted by commercial fisheries, the seven resident species of Northwest (NW) Atlantic skates possess life history traits that make them vulnerable to overexploitation, including slow growth, late maturation and relatively low fecundity. The various species occupy overlapping habitats and often migrate long distances. While their ecological role as benthic marine generalists and basic geographic ranges are understood, little is known about how they occupy available habitat relative to environmental and biotic factors. I statistically analyzed skate habitat preference using data collected by the National Marine Fisheries Service (NMFS) bottom trawl survey for 1963-2010. Using the nonparametric cumulative distribution approach of Perry and Smith (1994), I compared available and occupied habitat for each species. Significant associations were found for the environmental variables latitude, temperature, depth and salinity. Species-specific habitat associations and interspecific spatial interactions were estimated with emphasis on temporal variations. I discuss the implications of habitat preference for range overlap and interspecific competition. This study provides valuable insights into the spatial and temporal habitat use of skates and improves scientific understanding of skate ecology.

ISBN: 9781303666995Subjects--Topical Terms:

3174300
Aquatic sciences.

Habitat Preference and Spatial Interactions of the Northwest Atlantic Skate Complex.
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500 $a Advisers: Michael G. Frisk; Demian D. Chapman.
502 $a Thesis (M.S.)--State University of New York at Stony Brook, 2013.
520 $a Increasingly targeted by commercial fisheries, the seven resident species of Northwest (NW) Atlantic skates possess life history traits that make them vulnerable to overexploitation, including slow growth, late maturation and relatively low fecundity. The various species occupy overlapping habitats and often migrate long distances. While their ecological role as benthic marine generalists and basic geographic ranges are understood, little is known about how they occupy available habitat relative to environmental and biotic factors. I statistically analyzed skate habitat preference using data collected by the National Marine Fisheries Service (NMFS) bottom trawl survey for 1963-2010. Using the nonparametric cumulative distribution approach of Perry and Smith (1994), I compared available and occupied habitat for each species. Significant associations were found for the environmental variables latitude, temperature, depth and salinity. Species-specific habitat associations and interspecific spatial interactions were estimated with emphasis on temporal variations. I discuss the implications of habitat preference for range overlap and interspecific competition. This study provides valuable insights into the spatial and temporal habitat use of skates and improves scientific understanding of skate ecology.
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