Marine Biology Commons^™

Male Longnose Skate (Raja Rhina) Jaw, James A. Moss, David Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Male Longnose Skate Jaw (Raja rhina). Provided by Dr. David Kerstetter.

Barndoor Skate (Dipturus Laevis) Jaw, Erika M. Carrera, David W. Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Jaw from 14.4 cm total length (TL) Barndoor skate (Dipturus laevis), collected from Massachusetts on an unknown date by Jeff Kneebone

Barndoor Skate (Dipturus Laevis) Jaw Prep, Chase Adam Dejarnett, David Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Barndoor skate (Dipturus laevis) jaw preparation done by Chase DeJarnett and David Kerstetter for the Sharks and Their Relatives course Winter Semester 2021.

Squalus Acanthias, Spiny Dogfish Shark, Jaw, Sam Snell, David Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Jaw from Squalus acanthias, Spiny Dogfish Shark

Longnose Skate (Raja Rhina) Jaw, Tyler Miclau, David W. Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Jaw from Longnose Skate (Raja rhina)

Winter Skate (Leucoraja Ocellata) Jaw, Paige Spratt, Kathryn Kuruoglu, David W. Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Jaw from a winter skate (Leucoraja ocellata)

Potential Ecological Impacts Of Climate Intervention By Reflecting Sunlight To Cool Earth, Phoebe L. Zarnetske, Jessica Gurevitch, Janet Franklin, Peter M. Groffman, Cheryl S. Harrison, Jessica J. Hellmann, Forrest M. Hoffman, Shan Kothari, Alan Robock, Simone Tilmes

School of Earth, Environmental, & Marine Sciences Faculty Publications

As the effects of anthropogenic climate change become more severe, several approaches for deliberate climate intervention to reduce or stabilize Earth’s surface temperature have been proposed. Solar radiation modification (SRM) is one potential approach to partially counteract anthropogenic warming by reflecting a small proportion of the incoming solar radiation to increase Earth’s albedo. While climate science research has focused on the predicted climate effects of SRM, almost no studies have investigated the impacts that SRM would have on ecological systems. The impacts and risks posed by SRM would vary by implementation scenario, anthropogenic climate effects, geographic region, and by ecosystem, …

Winter Skate (Leucoraja Ocellata) Jaw, Emily M. Salonia, David W. Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Jaw 11.7 cm total length (TL) from Winter Skate (Leucoraja ocellata) collected from NSU Fisheries and Avian Ecology Laboratory on 3/23/21 by Emily Salonia.

Blacktip Shark (Carcharhinus Limbatus) Jaw, Katerina D. Sawickij, David Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Jaw from 176.1 cm total length (TL) Carcharhinus limbatus (Blacktip), collected from Hollywood Beach, FL on 3/13/21 by Katerina Sawickij.

Longnose Skate Jaw (Beringraja Rhina), Golda Stewart, David Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Jaw from female Longnose Skate (Beringraja rhina) collected on 30/3/2021 by Golda Stewart.

Bycatch Reduction Devices As A Method To Reduce Mortality Rates Of Malaclemys Terrapin In Crab Pots, Benjamin Lowstuter, Leslie Delong, Corey Hymel

Showcase of Osprey Advancements in Research and Scholarship (SOARS)

Diamondback terrapins (Malaclemys terrapin) currently face population loss along their broad coastal North American range, spanning from Massachusetts down to Texas. This species is suggested to be an important indicator of environmental change within the limited brackish water habitat along the coastlines. Terrapin mortality predominantly stems from human activities, such as commercial and recreational blue crab (Callinectes sapidus) trapping. Once caught in one of many crab pots littered throughout their aquatic habitat, terrapins can easily drown in several hours upon capture. In reviewing published research, the use of bycatch reduction devices (BRDs) have been shown to reduce the number of …

Why Are You So Slimy?, Lindsay Dillman, James Gelsleichter, Laura Habegger

Showcase of Osprey Advancements in Research and Scholarship (SOARS)

The epithelium of vertebrates is a complex tissue that houses a large variety of cells with different functions. One of its most important functions is protection and in many cases this function is achieved by exuding copious amounts of mucous that fight off diseases, harmful toxins and overall protect the species from external invaders. Mucous, made of mucin, is produced by specialized epithelial cells called goblet cells. Among vertebrates’, fishes are perhaps one of the major groups known to produce mucous, particularly stingrays. The Atlantic stingray, Dasyatis sabina is one of the few cartilaginous fishes known to inhabit both freshwater …

Exotic Brittle Star Interactions With Native Octocoral Epizoites: An Endemic Benthic Ctenophore In Peril?, Peter Glynn, Brian Coffman, Kyle Detloff, Joshua Dominguez, Philip Gilette, Nicholas Martinez, Nicolas Jones, Bernhard Riegl

Marine & Environmental Sciences Faculty Articles

Widespread and large populations of the exotic eastern Pacific ophiuroid brittle star Opthiothela mirabilis now occur in southeastern Florida, extending the range of this recently introduced species from southern Brazil northward to the eastern Caribbean Sea and Florida. The Florida brittle stars, representing two lineages, are epibionts on shallow (3-18 m depth), tropical/subtropical plexaurid (e.g., Eunicea spp., Muricea elongata) and gorgoniid (Antillogorgia spp.) octocorals. The scope of this study includes recent distributional records of O. mirabilis in south Florida, field abundances in relation to the cohabiting endemic ctenophore Coeloplana waltoni, behavioral observations of the ophiuroid, ctenophore and …

Spiny Dogfish (Squalus Acanthias) Jaw Prep, Meredith M. Pratt, David W. Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Spiny dogfish jaw prep performed at NSU's Fisheries and Avian Ecology lab.

Alexandrium In The Arctic: Are Harmful Algae Spreading As The Arctic Warms?, Sveinn Einarsson, Kate Lowry, Robert Pickart, Karin Ashjian, P. Dreux Chappell

College of Sciences Posters

Alexandrium tamerense is a well-studied dinoflagellate known for its ability to produce the neurotoxin that causes paralytic shellfish poisoning. Until 1970 Alexandrium tamerense was only found in Europe, North America, and Japan but has been increasingly found all over the globe. Alexandrium is characteristically found in temperate and subtropical regions and as the Arctic warms, there is considerable concern that it may be expanding into the Arctic. We found Alexandrium tamerense during a research expedition to the Alaskan Beaufort Sea shelf to study upwelling. Upwelling events are known to support seasonal blooms of phytoplankton, which are important primary producers at …

Who Invited You? The Complex Story Of Aquatic Invasive Species, Shaylee A. Amidon, Colin J. Birch, Sierra E. Brown, Kaitlyn E. Butts, Abbigail L. Felix, Samuel S. Fuller, Edwin Gao, Emily M. Lewis, Alexandra Michaud, Doyle M. Proto, Bradley N. Spear, George H. Wales, Hannah M. Welch, Conor F. Wiley, Kristen S. Wurth, Markus Frederich

Marine Sciences Student Projects

Invasive species represent a global threat to ecosystems, human health, and the economy. A basic knowledge of invasive species biology is crucial to understand current and future impacts and implications. The purpose of this book is to provide a broad background on invasive species, and also details on specific examples through case studies.

The students in the course Aquatic Invasive Species (MAR 442) at the University of New England in Biddeford, Maine, have researched and reviewed scientific literature to educate readers about these issues. The class, comprised of fifteen junior and senior Marine Science, Marine Affairs, Animal Behavior, and Environmental …

Seasonal Variability In Diazotroph Abundance And Gene Expression At A Coastal N2 Fixation Hotspot (Outer Banks, Nc), Katherine Crider, Corday Selden, Kimberly Powell, P. Dreux Chappell

College of Sciences Posters

Marine microbial dinitrogen (N₂) fixation, the conversion of gaseous N₂ to bioavailable species, is the primary source of new oceanic nitrogen (N). N is present in nucleic acids, amino acids, and proteins, and is essential to all life. Long considered to be a primarily oligotrophic ocean process, significant N₂ fixation rates have recently been observed in coastal environments, including along the Cape Hatteras front. To see if elevated N₂ fixation was a persistent feature in this region, N₂ fixation rates and N₂ fixer (diazotroph) abundance and gene expression were investigated through roughly monthly …

Protocols For Assessing Transformation Rates Of Nitrous Oxide In The Water Column, Annie Bourbonnais, Claudia Frey, Xin Sun, Laura A. Bristow, Amal Jayakumar, Nathaniel E. Ostrom, Karen L. Casciotti, Bess B. Ward

Faculty Publications

Nitrous oxide (N2O) is a potent greenhouse gas and an ozone destroying substance. Yet, clear step-by-step protocols to measure N2O transformation rates in freshwater and marine environments are still lacking, challenging inter-comparability efforts. Here we present detailed protocols currently used by leading experts in the field to measure water-column N2O production and consumption rates in both marine and other aquatic environments. We present example 15N-tracer incubation experiments in marine environments as well as templates to calculate both N2O production and consumption rates. We discuss important considerations and recommendations regarding (1) precautions to prevent oxygen (O2) contamination during low-oxygen and anoxic …

Are Populations Of Economically Important Bonefish And Queen Conch 'Open' Or 'Closed' In The Northern Caribbean Basin?, Marlis R. Douglas, Tyler Chafin, Julie E. Claussen, David P. Philipp, Michael E. Douglas

Biological Sciences Faculty Publications and Presentations

Demographics of co-occurring species can often be diagnosed through population genomic analyses of single nucleotide polymorphisms (SNPs). These data can define population structure, gene flow, and candidate regions in the genome that potentially reflect local adaptations. They can also gauge whether populations are demographically “open” or “closed” (i.e., with global or local recruitment). We derived SNPs from double-digest restriction-site associated DNA (ddRAD) to test the demographics of commercially important bonefish Albula vulpes (N = 117) and queen conch Lobatus gigas (N = 60) from two northeast Caribbean Basin islands (Grand Bahama to the north and Eleuthera to the …

Implications Of Increased Sst On Sula Dactylatra In Rapa Nui Marine Park, Flavia Soctto D'Antuono, Hayden E. Dubniczki

Student Publications

Marine protected areas are a relatively new conservation tool intended to remove harmful anthropogenic practices and influences to enable ecological processes to occur normally, but they cannot protect ecosystems from global impacts like climate change. One such MPA, Rapa Nui Marine Park in Chile, is home to the Masked Booby, Sula dactylatra. Though not currently endangered, their population numbers decrease annually, and seabirds are among the most threatened species in the face of climate change. This study seeks to examine the spatial ecology of the Sula dactylatra against the context of the MPA and examines whether increasing sea surface temperatures …