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Distribution Shifts Associated with ...

Markowitz, Emily.

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Distribution Shifts Associated with Changing Environmental Parameters in Two Demersal Species: Summer Flounder (Paralichthys dentatus) and Black Sea Bass (Centropristis striata).

Record Type:	Electronic resources : Monograph/item
Title/Author:	Distribution Shifts Associated with Changing Environmental Parameters in Two Demersal Species: Summer Flounder (Paralichthys dentatus) and Black Sea Bass (Centropristis striata)./
Author:	Markowitz, Emily.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
Description:	167 p.
Notes:	Source: Masters Abstracts International, Volume: 80-03.
Contained By:	Masters Abstracts International80-03.
Subject:	Biological oceanography. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10823255
ISBN:	9780438487505

Distribution Shifts Associated with Changing Environmental Parameters in Two Demersal Species: Summer Flounder (Paralichthys dentatus) and Black Sea Bass (Centropristis striata).
Markowitz, Emily.

Distribution Shifts Associated with Changing Environmental Parameters in Two Demersal Species: Summer Flounder (Paralichthys dentatus) and Black Sea Bass (Centropristis striata). - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 167 p.

Source: Masters Abstracts International, Volume: 80-03.

Thesis (M.S.)--State University of New York at Stony Brook, 2018.

This item must not be sold to any third party vendors.

Shifts in fish population distributions are a growing concern for fishers and fisheries managers. Long-term climate-induced warming has been implicated as the main driver of poleward distributional shifts in many marine fishery stocks, including two abundant and commercially valuable fish along the Northeast US coastline: Summer Flounder (Paralichthys dentatus) and Black Sea Bass (Centropristis striata). Other environmental and climatic drivers may also seasonally influence their abundance and distribution in the Northeast US at different life-stages. This study assessed what parameters (surface and bottom temperature, surface and bottom salinity, bottom depth, rugosity, and distance from nearest bay) are selected for by both species, ultimately influencing their distribution seasonally and by size-classes. The analyses will utilize fishery-independent Northeast Fisheries Science Center bottom trawl survey data to develop cumulative distribution functions, generalized additive models, and habitat suitability models. Species availability to the seasonal trawl survey (that is relatively temporally and spatially static) changed over time because their distribution is driven by environmental and climatic factors, impacting estimates of stratified-mean biomass and abundance. Juveniles selected for different aspects of their environment and were found at warmer and sometimes wider temperature ranges than adults. Depth was found to be important seasonally for different size-classes. Both species appeared to weakly select for salinity in the spring and for temperature in the fall. Black sea bass did not select for parameters as strongly as Summer Flounder, likely because of the difficulty in sampling high-rugosity regions where they typically dwell.

ISBN: 9780438487505Subjects--Topical Terms:

2122748
Biological oceanography.

Distribution Shifts Associated with Changing Environmental Parameters in Two Demersal Species: Summer Flounder (Paralichthys dentatus) and Black Sea Bass (Centropristis striata).
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520 $a Shifts in fish population distributions are a growing concern for fishers and fisheries managers. Long-term climate-induced warming has been implicated as the main driver of poleward distributional shifts in many marine fishery stocks, including two abundant and commercially valuable fish along the Northeast US coastline: Summer Flounder (Paralichthys dentatus) and Black Sea Bass (Centropristis striata). Other environmental and climatic drivers may also seasonally influence their abundance and distribution in the Northeast US at different life-stages. This study assessed what parameters (surface and bottom temperature, surface and bottom salinity, bottom depth, rugosity, and distance from nearest bay) are selected for by both species, ultimately influencing their distribution seasonally and by size-classes. The analyses will utilize fishery-independent Northeast Fisheries Science Center bottom trawl survey data to develop cumulative distribution functions, generalized additive models, and habitat suitability models. Species availability to the seasonal trawl survey (that is relatively temporally and spatially static) changed over time because their distribution is driven by environmental and climatic factors, impacting estimates of stratified-mean biomass and abundance. Juveniles selected for different aspects of their environment and were found at warmer and sometimes wider temperature ranges than adults. Depth was found to be important seasonally for different size-classes. Both species appeared to weakly select for salinity in the spring and for temperature in the fall. Black sea bass did not select for parameters as strongly as Summer Flounder, likely because of the difficulty in sampling high-rugosity regions where they typically dwell.
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