Fish and Invertebrate Ecology
Principal Investigator

Fellow and Intern Projects

Chuck
Charles Bangley, PhD
Movement of Life
Postdoctoral Fellow

 

Project: Coastal Shark Habitat Use and Migration

Coastal sharks, species that occur in near shore or estuarine waters, are high-level predators in marine ecosystems and can affect the populations and habitat use patterns of their prey. In addition to their ecological importance, some shark species are sought after by recreational and commercial fisheries while others are incidentally caught in large numbers. Movement and habitat use patterns are only well-known for a handful of species, especially within estuaries such as the Chesapeake Bay. My research uses acoustic and satellite tagging techniques to identify areas within the Chesapeake Bay that are important for sharks, determine where they go once they leave the estuary, and test whether their movements coincide with those of potential prey species such as cownose rays and striped bass. This project focuses on bull sharks, blacktip sharks, dusky sharks, and smooth dogfish, four species that have not historically received much research attention in the Chesapeake Bay but that each have a unique ecological role within the estuary. My research will help define the ecological roles of these species in Chesapeake Bay and the greater Atlantic coast, and will help predict how the movements of these species may be affected by a changing environment.

 

Corey
Corey Corrick, University of North Florida Master's Student

Project: Spatial Variation in Fishing Mortality of Mature Female Blue Crabs  (Callinectes sapidus) in individual Chesapeake Bay Subestuaries.

From 2008 to 2012, the total US commercial landings of blue crabs (Callinectes sapidus) averaged over 173 million. In 2013 and 2014 – the last years for which data is available – just over 133 million pounds were harvested each year. Chesapeake Bay and its tributaries are an important system in this fishery, contributing greater than 30% of national commercial landings annually. In Chesapeake Bay, C. sapidus exhibits a complex life cycle in which, upon mating, females form a terminal molt and migrate to the saline waters of the mouth to release their fertilized eggs. As a result of sustained declines in harvest, recent management strategies have focused their efforts on the female blue crab fishery in order to protect the spawning stock and promote enhanced recruitment back into the Bay. My current research utilizes a broad scale mark-recapture study in 12 Chesapeake Bay subestuaries and one coastal embayment, designed to track female migration and quantify spatial variation in exploitation rates and reporting rates of spawning-age female blue crabs. Tagging is conducted in fall (September and October), when most females mature and migrate to the spawning grounds, and summer (July), when additional females mature and migrate to these spawning grounds. These data will provide resource managers with critical information to better manage this important fishery.

Erica
Erica Staaterman, PhD
MarineGEO Postdoctoral Fellow

Project: Bioacoustics and Biodiversity

My post-doctoral research focuses on underwater soundscapes. Marine soundscapes include biological sounds (e.g. sounds made by fish), non-biological sounds (e.g. wind and waves), and anthropogenic sounds (e.g. boat noise). I am currently working on two projects spanning from the tropics to the temperate zone. First, I am exploring whether bioacoustics can be used as a biodiversity sampling tool. For this project, I am collecting acoustic recordings alongside traditional biodiversity samples. This work is important because bioacoustics can be employed in areas where traditional sampling methods, such as visual fish counts, fail - due to poor visibility. The second project examines the potential impacts of boat noise on marine communities. This work is particularly important in areas like Chesapeake Bay, in which major shipping channels overlap with critical habitats for spawning fishes. Current position: Acoustic Ecologist, US Bureau of Ocean Energy Management.

 

Mike
Mike Hannam, PhD
SERC Postdoctoral Fellow

 

Project: River Herring Habitat Modeling  

How do human activities in a watershed affect fish habitat downstream or nearby? How can we answer the previous question when fish can be difficult to find? These are the foci of my work with the Fish and Invertebrate Ecology lab. Chesapeake Bay River Herring populations have declined precipitously in recent decades, but most of our knowledge of River Herring spawning habitat comes from studies in New England. The Fish and Invertebrate Ecology Lab surveys herring presence at dozens of different streams, and I use information about the stream network to and surrounding land-cover to explore what kind of streams herring use. The field surveys use cast-netting, plankton sampling, and environmental DNA collection to detect herring at each stream site. I am constructing statistical models that can account for the differing efficiency with which these observation techniques detect fish. This will allow us not only to better understand our field sampling techniques, but to better understand relationships between land-use and river herring habitat. Current position: National Park Service

rob
Robert Semmler, University of Maryland, College Park Master's Student

 

Project: Spatial and Temporal Variation of Recreational and Commercial Blue Crab Fishery in Maryland

Though managers of the blue crab fishery in the Chesapeake Bay keep annual records of commercial harvest, there is no such monitoring for recreational fishing. Through a mark-recapture experiment of adult blue crabs, I'm researching the relative impacts of recreational and commercial fishing in Maryland. I hope to evaluate how recreational fishing pressure varies, both spatially across the different tributaries of the Bay, and temporally over the course of the fishing season. My research also evaluates the connectivity and exchange of adult blue crabs between these different tributaries. With my work I hope to help improve blue crab population models that account for recreational fishing, and also to shed light on significant connections that may be important to blue crab harvest on a local scale. Current position: Ph.D. student, University of Lancaster, UK.

 

2017 Interns
edwards
Cosette Larash,
Communications/
Videography
edwards
Michelle Edwards,
Citizen Scientists as
Vessels for Acoustic
Telemetry
edwards
Julia Englund,
Progress and Patterns in
the Chesapeake Bay
Barcoding Initiative

 

edwards
Nick Morin, 
Fish Community Structure:
A Comparison of Trawl
and Sonar Data
edwards
Patyon Mowery, 
Effects of Habitat Complexity
on the Fish and Crab
Abundances of Restored
Oyster Reefs in Harris
Creek, MD

 

 

2016 Interns
edwards
Amanda Martinez,
Oh, Where Did They Go?
Using Acoustic Telemetry to
Understand the Habitat Use
of Carp
edwards
Gabriella Marafino,
River Herring Habitat Use in
the Chesapeake Bay and
the Conservation Potential
of Dam Removal

 

 

 

 

edwards
Morgan Jones,
What Can Reproductive
Biology Tell Us About the
Blue Crab Spawning Stock?
edwards
Michelle Hauer,
Acoustic Communication in
Bocon Toadfish

 

 

2015 Interns
edwards
Lauren Mott,
Tracking Movement of the
Common Carp in the Rhode
River using Acoustic Telemetry
edwards








Eric Kencel,
Effects of Land Cover
on River Herring Spawning
Habitat Use in the Choptank
River

 

 

 

 

 

 

edwards
Mary Fisher,
Using DIDSON  to Assess
Trap Effectiveness in
Estimating Fish and Crab
Abundance in the Chesapeake
Bay
edwards
Jessica Beach,
Does Oyster Reef Restoration
Affect Fish & Crab Abundance
in Tributaries of the
Chesapeake Bay?

 

 

2014 Interns
edwards
Travis Flock,
Tracking Blue Catfish Movement
in Chesapeake Bay Using
Acoustic Telemetry
edwards
Eva Kinnebrew-González,
Sonar and Scales: Detecting
Trends in the Chesapeake Bay
River Herring Population

 

 

edwards
Robert Semmler,
Assessing Juvenile Blue Crab
Population Dynamics and Adult
Fishery Characteristics
edwards
Julie Sepanik,
Agent-Based Model of
Chesapeake Bay Blue Crabs

 

 

2013 Interns
edwards
Mark Ruiz,
Application of Imaging Sonar to
Fisheries Ecology: Identifying
Juvenile Blue Crab Predator-Prey
Interactions
edwards
Catherine Sinclair,
Connecting in a Digital Age:
Social Media at SERC
 

 

 

edwards
Angela Trenkle,
Potential Impacts of Invasive
Blue Catfish on Native White
Catfish
edwards
Brooke Weigel,
Determining the Impacts of
Invasive Blue Catfish in
Maryland using Diet Studies
and Acoustic Telemetry

 

 

2012 Interns
edwards
Maggie Leubs,
The Clam-Feeding
Preferences of Crabs
edwards
Miranda Marvel,
Invasive Blue Catfish, Ictalurus
furcatus: Blue Devil or Pussycat?

 

 

 

 

edwards
Eric Parks,
Near shore surveys for juvenile
blue crabs, Callinectes sapidus,
in the Chesapeake Bay
edwards
Sean McCanty,
Something Smells Fishy:
Investigating the Lack of Blue
Crab Remains in Native
American Shell Middens