ResearchTopic: Invasive Species

Pennsylvania Field Guide to Aquatic Invasive Species

Overview The Pennsylvania Field Guide to Aquatic Invasive Species is an in-depth guide to identifying, reporting, and preventing the spread of aquatic invasive species (AIS), produced by Pennsylvania Sea Grant. The nearly 200-page guide offers profiles of over 70 species of algae, aquatic and facultative plants, fish, invertebrates, pathogens, and reptiles. Each species profile includes photos […]

Organizing an Aquarium Pet Surrender Event Guide

Organizing an Aquarium Pet Surrender Event Acknowledgements This publication was developed by Pennsylvania Sea Grant with funding from the Great Lakes Restoration Initiative. Information in this guide was adapted from Habitattitude, Be a Hero Release Zero, and aquarium pet surrender initiatives led by Wisconsin Sea Grant, Minnesota Sea Grant, Illinois-Indiana Sea Grant and the Illinois […]

Pennsylvania Watercraft Inspection Handbook

Recreational boating is identified as a key pathway in the spread of aquatic invasive species (AIS) across the Great Lakes Basin including inland waterbodies (Rothlisberger et al., 2010). Indeed, waters everywhere are at risk of AIS influx via watercraft. Organisms, such as the Spiny Water Flea, Eurasian Watermilfoil, and Zebra and Quagga Mussels, can be […]

Lake Erie Cooperative Weed Management Area Five Year Plan

The Lake Erie Watershed Cooperative Weed Management Area (LEW-CWMA) provides a framework of communication, planning, and guidance to individuals, groups, organizations, and agencies engaged in the management of invasive plant species within the Lake Erie Watershed. The work of the CWMA provides educational opportunities for landowners and land managers, develops common management objectives, sets realistic […]

Identification of Parasites and Bacteria and Their Role in Infections and Mortalities of Smallmouth Bass Micropterus Dolomieu in the Susquehanna River Basin and Neighboring Drainages

The objectives of this study were to determine the distribution of the myxozoan parasite Myxobolus inornatus identified in young-of-year (YOY) smallmouth bass, determine the role that this parasite is playing in infections/mortalities, identify the intermediate host(s) that may be mediating transmission of this parasite, and determine the distribution of intermediate host species to identify potential for threat […]

Nutrient Thresholds for Didymosphenia Geminata Blooms and Stalk Formation in the Delaware River

Observational surveys and experimental rock transplants were conducted within the Delaware River to document the phenology of Didymosphenia geminata blooms and to evaluate the effects of different nutrient regimes on stalk formation and bloom development. The observational surveys began in October 2012 and continued through May 2013. They showed no D.geminata colonies in the Lower Delaware River prior to […]

Status of Exotic Round Goby and Tubenose Goby in Pennsylvania

The purposes of this study was to report on the status of the Round Goby, Neogobius melanostomu, in the Lake Erie watershed of Pennsylvania, to determine if there was a shift in diet of the native fishes when Round Goby were present in selected Pennsylvania tributaries of Lake Erie, and to compare the diet of the Tubenose […]

Deciphering the Role of the Largemouth Bass Virus (LMBV) in Causing the Observed Mortalities in Juvenile Smallmouth Bass Micropterus Dolomieu in the Susquehanna River Basin, Pennsylvania

Since 2005, mortality episodes of young-of-year (YOY) Smallmouth Bass Micropterus dolomieu (SMB) were consistently reported from a number of river systems in Pennsylvania, such as the Susquehanna, Juniata, and Allegheny rivers. These mortality events were more persistent and severe in the Susquehanna and Juniata River systems, occurring annually to varying degrees, than in the Allegheny […]

Rusty Crayfish and Smallmouth Bass in the Susquehanna River: Who’s Eating Whom?

Two nonnative crayfish species, Rusty Crayfish (Faxonius rusticus) and the Allegheny Crayfish (Faxonius. obscurus), are currently found in the Susquehanna River. In 2015, we hand collected crayfish from among six sites spanning almost 115 river miles. Thirty stomachs were dissected from similarly sized individuals at each of the six sites; two of the sites had […]

Genomic Application for Mutational Analysis of Skin Tumor Formation in the Bioindicator Bottom Feeder Brown Bullhead Fish in Presque Isle Bay

Genome sequence comparison of tumor and non-tumor samples obtained from brown bullhead fish from Presque Isle State Park was undertaken to identify regions of DNA mutations in tumor samples. DNA primer sets were constructed to amplify and examine eight of these regions in greater detail, all of which successfully amplified the region targeted. Three genome […]

ResearchTopic: Invasive Species

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