A study of effects of reduction of submarine groundwater discharge on thermal habitats for manatee in a spring-fed estuary using a laterally averaged hydrodynamic model

XinJian Chen

Ecological Modelling, 2021, vol. 456, issue C

Abstract: Effects of the reduction of submarine groundwater discharge (SGD) on thermal habitats for manatee in the Homosassa River, a spring-fed estuary in Florida, were studied using a laterally averaged hydrodynamic model. The estuary receives its hydrologic loading from numerous spring vents, mainly located at its headwaters and two upstream tributaries. The model was calibrated and verified against real-time data collected during November 2014 - August 2017 before it was used to simulate hydrodynamics, salinity transport, and thermal dynamics in the estuary from October 9, 2007 to March 12, 2018 with various SGD reductions. Effects of the SGD reduction on chronic (72-hour timescale) and acute (4-hour timescale) thermal habitats for manatee were analyzed at five critical time points (CTPs), including those of the lowest air temperature in 2010 and 2018, the lowest water temperature, the minimum thermal habitats, and the most sensitive extremely low habitats.

Keywords: Submarine groundwater discharge; Spring-fed estuary; Laterally averaged hydrodynamic model; Chronic thermal habitats for manatee; Acute thermal habitats for manatee (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:456:y:2021:i:c:s0304380021002131

DOI: 10.1016/j.ecolmodel.2021.109653

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