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ATLSS Landscape Fish Model

ALFISH FLOW CHART. Fish Cell Layout. Fish as Prey. Example of Small Fish Least Killifish Heterandria formosa. ALFISH. Approach. Fish provide the prey-base for endangered wading bird species such as Great Egret ( Casmerodius albus).

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ATLSS Landscape Fish Model

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  1. ALFISH FLOW CHART Fish Cell Layout Fish as Prey Example of Small Fish Least Killifish Heterandria formosa ALFISH Approach Fish provide the prey-base for endangered wading bird species such as Great Egret (Casmerodius albus) A size-structured population model for fish functional groups (large and small fish) that operates on a spatial cell basis with movement between cells and between habitats within cells. ATLSS Landscape Fish Model Objectives Holly Gaff, Rene’ Salinas, Louis Gross, Don DeAngelis, Joel Trexler, Bill Loftus and John Chick • Provide estimates of effects of alternative water management scenarios on spatial and temporal distribution of food resources for upper trophic level consumers (wading birds). • Provide method to evaluate hypothesized impact of hydrologic changes on fish community composition. Female Male Pond areas assumed permanently wet, marsh areas periodically dry Landscape Layout and Movement White-movementfromlowwatertohighwaterareas Red-movementfromhighfishdensitytolowdensityareas

  2. Fish Available as Prey during a Typical Rainfall Year Fish Available as Prey during a High Rainfall Year Fish Available as Prey during a Low Rainfall Year Average Fish Available as Prey from 1965 - 1995 Distribution of Sizes for Fish in WCA 3A Total Fish Densities through 31-year Model Run Average Fish Available as Prey during Breeding Season for Wading Birds Total Fish Densities for Certain Years in Given Areas ALFISHMODELEXAMPLERESULTS- AltD13r4comparedtoF2050Base

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