Skip to content

Population and pollutant estimates for invasive snails in Presque Isle State Park

Invasive species can have direct and indirect negative impacts on native communities. Freshwater snails—because of their diet variety, association with water and sediment, rapid reproduction rates, and obscure life history—can significantly impact the communities they invade. Our preliminary work has shown that Presque Isle State Park (PISP), located along Lake Erie’s shores, is now home […]

How Temperature and Phosphorus Loading Influence E. Coli Growth on Cladophora in Lake Erie Beach Waters of Presque Isle State Park

The 13 public Lake Erie beaches of Presque Isle State Park have been particularly affected by water pollution. In 1991, Presque Isle Bay was designated as the 43rd Great Lakes Area of Concern by the U.S. Department of State. While the bay has now been listed as an Area of Recovery, bacterial contamination of the […]

Probabilistic Characterization of Stream Flows in Urbanizing Basins in Pennsylvania Under Climate Change Scenarios

Given the critical role of the streamflow regime for instream, riparian, and floodplain ecosystem sustainability, modeling the long-term effect of urbanization on streamflow is important to predict possible changes in stream ecosystems. Since flow duration curves are largely used to characterize the streamflow regime and define indices for stream ecosystem health, a stochastic model is […]

Potential Impact of Climate Change on Bivalves in the Tidal Freshwater Region of the Delaware River

Bivalve shellfish perform numerous ecosystem services but are under threat from a variety of stressors. Climate change will alter the environmental conditions that bivalve shellfish are sensitive to, so restoration efforts should consider how the future climate will evolve. Here, climate model projections and statistical water quality models were used to estimate future changes in […]

Monitoring a Freshwater Tidal Wetland in the Delaware Estuary: Flooding Influence on Accretion and a Potential for Priority Planning Under Vulnerability to Sea Level Rise

Tidal freshwater wetlands provide numerous important ecological services including carbon and nutrient sequestration, sediment trapping, and natural flood control. Urban and agricultural development, nutrient loading, and sea level rise continue to threaten these ecologically and economically valuable ecosystems. Rates of sea level rise are accelerating with global climate change, which has implications for wetland loss. […]

Living Shorelines Assessment for Community Resiliency in Coastal Pennsylvania

As sea levels rise, the people along Pennsylvania’s eastern coastlines face many challenges, including the loss of tidal wetlands and the associated increase in coastal flooding (Nicholls 2004). Tidal wetlands remain a valuable buffer for rising seas levels and vital habitat for fish and wildlife (Beck et al. 2001; Knight 1997).  Unfortunately, the Delaware Estuary […]

Diel Signals in Stream Discharge – Insights Into Watershed Behavior and Potential Impacts of Climate Change

This study examined the characteristics of daily water level fluctuations produced by evapotranspiration measured in riparian areas and within a stream (Buck Hill Creek). The goal was to understand how diel signal characteristics Buck Hill Creek relate to watershed characteristics and predict how the diel signal characteristics might be affected by changing climate. Water levels […]

A Paradigm Shift: Re-Evaluating Phragmites and Phragmites Management in Terms of Coastal Resilience

Coastal wetlands of the Delaware River Estuary and much of North America are converting at a rapid pace to near-monocultures of the invasive lineage of the common reed Phragmites australis (hereafter Phragmites). Unfortunately, we know surprisingly little about how Phragmites invasion affects coastal blue carbon, specifically carbon (C) sequestration or soil C processes (e.g. soil […]

Evaluating Coastal Wetland Vulnerability to Sea Level Rise in Pennsylvania

Tidal wetlands are important ecosystems that provide a number of ecosystem services such as nutrient transformation and removal, carbon sequestration, and habitat for fish and wildlife. Tinicum marsh in John Heinz National Wildlife Refuge is Pennsylvania’s largest and last remaining tidal wetlands. Tinicum is one of nine wetland monitoring sites within the Mid-Atlantic Coastal Wetland […]

Join Our Newsletter

Keep up with the latest news and events by signing up below.

By submitting this form, you are consenting to receive marketing emails from Sea Grant Pennsylvania. You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.