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Will climate change influence fish population dynamics in temperature rivers?

Taylor, Ryan and Solana Gutierrez, Joaquin and Harvey, John and Cown, Ian (2010) Will climate change influence fish population dynamics in temperature rivers? In: The Fisheries Society of The British Isles Annual Symposium, FSBI 2010, 26/07/2010 - 30/07/2010, Belfast, UK.

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Item Type:Presentation at Congress or Day (Article)
Authors/Creators:
Creators NameCreators email (if known)
Taylor, Ryan
Solana Gutierrez, Joaquin
Harvey, John
Cown, Ian
Title:Will climate change influence fish population dynamics in temperature rivers?
Event Title:The Fisheries Society of The British Isles Annual Symposium, FSBI 2010
Event Dates:26/07/2010 - 30/07/2010
Event Location:Belfast, UK
Title of Book:Proceedings of The Fisheries Society of The British Isles Annual Symposium, FSBI 2010
Publisher:Wiley-Blackwell
Date:2010
ISBN:ISSN: 0022-1112
Department:Economy and Forest Management
Faculty:E.T.S.I. Mountains (UPM)
Creative Commons licenses:Recognition - No derivative works - No commercial
Item ID:7573
Subjects:Biology
Hydrology

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Official URL: http://www.fsbi.org.uk/2010/fsbi-2010-programme.htm

Abstract

The influence of key climate-driven environmental parameters on the population dynamics of three cyprinid fish species; chub (Leuciscus cephalus (L.)), dace (Leuciscus leuciscus (L.)) and roach (Rutilus rutilus (L.)) were modelled. Monthly variability in temperature (cumulative degree days and cumulative degree days increment), flow (cumulative discharge days and Q values) and climate (NWGS) over a 15-year period were investigated to determine their effect on length at age 1, Annual Growth Increment (AGI) and Year Class Strength (YCS). In order to produce a robust and statistically valid model, data sets from four English rivers (Avon, Lee, Great O use and Don) were combined. All models were statistically significant and adjusted r2 values ranged between 0.161 and 0.752. Monthly values for NWGS and cumulative degree day increments had the greatest influence on population dynamics, highlighting the vulnerability of UK cyprinid fish populations to a changing climate, especially increase or decrease in temperature.

Item Type:Presentation at Congress or Day (Article)
Uncontrolled Keywords:climate; growth; model; temperature; discharge.
Subjects:Biology
Hydrology
Código ID:7573
Depositado Por:Memoria Investigacion
Depositado el:06 Jul 2011 15:16
Last Modified:01 Aug 2012 00:56

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