Research

Benthic Community Monitoring

Benthic Community Monitoring

Scale: Local, Regional, Global
Themes: Community Structure, Spatial Dynamics, Ecosystem Function

Monitoring benthic communities and their functions across diverse estuarine habitats is vital for understanding biodiversity patterns and ecosystem health.

  • SAV Community Structure & Efficiency: Showed that while high-biomass non-native (Hydrilla) meadows expand overall macroinvertebrate capacity, native Zannichellia palustris supports significantly higher per-biomass invertebrate density and hosts distinct indicator taxa critical for food web integrity.
  • Host-Associated Microbe Zonation: Demonstrated via a manipulative transplant experiment that tidal stress gradients shape macroalgal microbiomes, with transplanted Fucus vesiculosus holdfast bacterial communities shifting toward high-zone species under elevated desiccation.
  • Remote Sensing & Habitat Classification: Developed an open-source machine learning framework for rapid coastal habitat change detection, combining field ground-truthing with extreme gradient boosting (XGBoost) to achieve 83.6% accuracy across dynamic barrier island habitats.
  • Cross-Atlantic Microbiome Biogeography: Evaluated host-associated bacterial communities along a cross-Atlantic latitudinal gradient in Fucus vesiculosus, finding that temperature, tidal height, and host phylogeography drive microbial structure rather than photoperiod.
  • Gulf-Wide Blue Carbon & Nitrogen Inventory: Synthesized >1,100 sediment cores to construct a regional blue carbon and nitrogen inventory, establishing that Northern Gulf of Mexico seagrass surface sediments store up to 7.03 Tg C and 0.43 Tg N.

Ecosystem Change and Resilience

Ecosystem Change and Resilience

Scale: Local, Regional, Global
Themes: Resilience Across Space & Time, Community Structure, Climate Change Biology

Quantifying long-term ecosystem responses to environmental stressors is critical for developing effective coastal conservation and climate adaptation strategies.

  • Thermal Stress & Vertical Squeeze: Analyzed four decades of Chesapeake Bay water quality and aerial imaging data to reveal that long-term water quality management enabled eelgrass (Zostera marina) to expand 0.89 m deeper into cooler waters, alleviating shallow thermal stress.
  • Sea Level Rise & Habitat Loss: Utilized long-term monitoring from the Texas Seagrass Monitoring Program to show that rapid sea level rise (14–25 mm yr⁻¹) caused seagrass disappearance at 23% of sentinel stations and complete localized loss at deep-edge margins.
  • Global Blue Nutrient Stocks & Loss: Conducted a global synthesis revealing seagrass sediments store ~174 Tg N and 27 Tg P in the top meter, demonstrating that meadow loss severely degrades long-term nutrient reservoir capacity and accelerates coastal eutrophication.

Ecoacoustics

Ecoacoustics

Scale: Local, Regional
Themes: Ecosystem Function, Spatial & Temporal Dynamics, Remote Sensing

Ecoacoustic methodologies offer advanced non-invasive remote sensing capacity for monitoring dynamic metabolic processes and biomass in marine autotrophs.

Physiology and Metabolism

Physiology and Metabolism

Scale: Local, Regional
Themes: Ecosystem Function, Ecosystem Structure, Stress Tolerance

Quantifying the physiological tolerance limits and metabolic acclimation of marine primary producers is essential for predicting autotrophic survival under accelerating climate stress.

  • Biosecurity & Chlorine Tolerance: Identified extreme resistance to reactive oxygen stress and biosecurity chlorination in holdfasts, cystocarps, and crusts of the invasive red alga Grateloupia turuturu, explaining its competitive success and vector risk.
  • Desiccation Resilience & Gas Exchange: Validated infrared gas analysis (IRGA) for subtidal plants to quantify desiccation tolerance and carbon fixation, demonstrating higher desiccation resistance and carbon assimilation rates in deeper seagrass populations.
  • Acoustic Ebullition & Productivity: Comparative acoustic ebullition monitoring revealed that photosynthetic bubble release tripled net ecosystem productivity in shallow Thalassia testudinum meadows compared to dissolved oxygen alone, while identifying species-specific acoustic frequency signatures (10 kHz vs. 40 kHz).
  • Uncovering Hidden Autotrophy: Combined acoustic ebullition tracking with dissolved gas budgets to show that oxygen ebullition uncovers hidden net ecosystem productivity, transforming an apparently net heterotrophic seagrass meadow (-2.1 mmol O₂ m⁻² d⁻¹) into a strongly autotrophic system (54 mmol O₂ m⁻² d⁻¹).

Aquaculture and Restoration

Aquaculture and Restoration

Scale: Local, Regional
Themes: Resilience Across Space & Time, Ecosystem Function, Restoration Ecology

Sustainable aquaculture and ecological restoration provide vital solutions for enhancing coastal ecosystem resilience and expanding nature-based bio-economies.

  • Aquaculture Resilience & Climate Adaptation: Synthesized climate change scenario impacts on cold-water aquaculture in the Gulf of Maine to evaluate physical and ecological adaptation strategies for sustaining working waterfront resilience under warming trends.
  • Seagrass Restoration & Seed Harvest: Investigated how light exposure during harvest and storage affects the quantity and quality of Zostera marina seeds to optimize seagrass restoration protocols.