Aquatic Ecosystems Health Assessment Using Biological and Geospatial Analyses

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Biodiversity and Functionality of Aquatic Ecosystems".

Deadline for manuscript submissions: 20 July 2024 | Viewed by 308

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Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, Lublin, Poland
Interests: chironomids; benthic macroinvertebrates; trophic interactions; shallow lakes; bioassesment; freshwater monitoring; environmental threats
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Special Issue Information

Dear Colleagues,

Human activities affect the water resources in structural and functional dimensions. The input of anthropogenic contaminants has the potential to impact aquatic ecosystem health. Exposure to environmental contaminants can be responsible for the survival of aquatic organisms via numerous mechanisms, including their abundances, species composition and diversity as well short- and long-term toxicity. Current research demonstrates that freshwater organisms, such as phytoplankton or benthic macroinvertebrates, together with physical and chemical properties can be successfully used to assess ecosystem health.

Recent advances in geotechnical tools (e.g., Geographic Information Systems, remote sensing, Global Positioning Systems) provide innovative platforms for diagnosing environmental health problems and, when it is required, developing interventions. Geospatial analyses methods, with their focus on space and location, play a significant role in environmental health monitoring and assessment. The main advantage of geospatial methods, especially satellite images, is the near–real-time monitoring of environmental hazards.

The ecological health of a given water body can provide a great resolution of relative condition of water ecosystems and helps to define the extent of its degradation. From a water management perspective, it is necessary to understand the links between physicochemical stressors (pollutants) and receptors (living organisms).

This Special Issue invites studies focused on water ecosystem health, water bodies greatly impacted by human activities, urbanization and agriculture, as well as aquatic ecosystems in protected areas. We hope that this SI will be an opportunity to publish results based on new methods and indices for assessing ecosystem health, including geospatial analysis.

Prof. Dr. Monika Tarkowska-Kukuryk
Dr. Beata Ferencz
Guest Editors

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Keywords

  • aquatic ecological health assessment
  • biotic integrity index
  • hazard surveillance
  • biomonitoring exposure assessment
  • index systems for environmental health

Published Papers (1 paper)

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Research

26 pages, 3798 KiB  
Article
Vulnerability Assessment of Groundwater Influenced Ecosystems in the Northeastern United States
by Shawn D. Snyder, Cynthia S. Loftin and Andrew S. Reeve
Water 2024, 16(10), 1366; https://doi.org/10.3390/w16101366 - 11 May 2024
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Abstract
Groundwater-influenced ecosystems (GIEs) are increasingly vulnerable due to groundwater extraction, land-use practices, and climate change. These ecosystems receive groundwater inflow as a portion of their baseflow or water budget, which can maintain water levels, water temperature, and chemistry necessary to sustain the biodiversity [...] Read more.
Groundwater-influenced ecosystems (GIEs) are increasingly vulnerable due to groundwater extraction, land-use practices, and climate change. These ecosystems receive groundwater inflow as a portion of their baseflow or water budget, which can maintain water levels, water temperature, and chemistry necessary to sustain the biodiversity that they support. In some systems (e.g., springs, seeps, fens), this connection with groundwater is central to the system’s integrity and persistence. Groundwater management decisions for human use often do not consider the ecological effects of those actions on GIEs. This disparity can be attributed, in part, to a lack of information regarding the physical relationships these systems have with the surrounding landscape and climate, which may influence the environmental conditions and associated biodiversity. We estimate the vulnerability of areas predicted to be highly suitable for the presence of GIEs based on watershed (U.S. Geological Survey Hydrologic Unit Code 12 watersheds: 24–100 km2) and pixel (30 m × 30 m pixels) resolution in the Atlantic Highlands and Mixed Wood Plains EPA Level II Ecoregions in the northeastern United States. We represent vulnerability with variables describing adaptive capacity (topographic wetness index, hydric soil, physiographic diversity), exposure (climatic niche), and sensitivity (aquatic barriers, proportion urbanized or agriculture). Vulnerability scores indicate that ~26% of GIEs were within 30 m of areas with moderate vulnerability. Within these GIEs, climate exposure is an important contributor to vulnerability of 40% of the areas, followed by land use (19%, agriculture or urbanized). There are few areas predicted to be suitable for GIEs that are also predicted to be highly vulnerable, and of those, climate exposure is the most important contributor to their vulnerability. Persistence of GIEs in the northeastern United States may be challenged as changes in the amount and timing of precipitation and increasing air temperatures attributed to climate change affect the groundwater that sustains these systems. Full article
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