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Articles 31 - 60 of 325

Full-Text Articles in Marine Biology

Bull Shark (Carcharihinus Leucas) Chondrocranium, Nicholas Burchett, Michelle Bassali, David W. Kerstetter, Roman Devlin Oct 2025

Bull Shark (Carcharihinus Leucas) Chondrocranium, Nicholas Burchett, Michelle Bassali, David W. Kerstetter, Roman Devlin

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

No abstract provided.


Yellow Stingray (Urobatis Jamaicensis) Jaw, Marissa Rosas, David Kerstetter Apr 2025

Yellow Stingray (Urobatis Jamaicensis) Jaw, Marissa Rosas, David Kerstetter

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

No abstract provided.


Atlantic Sharpnose Shark (Rhizoprionodon Terraenovae) Jaw, Nicholas Burchett, David Kerstetter, Derek Burkholder Apr 2025

Atlantic Sharpnose Shark (Rhizoprionodon Terraenovae) Jaw, Nicholas Burchett, David Kerstetter, Derek Burkholder

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

No abstract provided.


Atlantic Sharpnose Shark (Rhizoprionodon Terraenovae) Neurocranium, Michelle Bassali, David Kerstetter, Ema Nagel Apr 2025

Atlantic Sharpnose Shark (Rhizoprionodon Terraenovae) Neurocranium, Michelle Bassali, David Kerstetter, Ema Nagel

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

No abstract provided.


Atlantic Sharpnose Shark (Rhizoprionodon Terraenovae) Jaw, Michelle Bassali, David Kerstetter, Ema Nagel Apr 2025

Atlantic Sharpnose Shark (Rhizoprionodon Terraenovae) Jaw, Michelle Bassali, David Kerstetter, Ema Nagel

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

No abstract provided.


Atlantic Sharpnose (Rhizoprionodon Terraenovae) Jaw, Rileigh Gonzalez, David Kerstetter Mar 2025

Atlantic Sharpnose (Rhizoprionodon Terraenovae) Jaw, Rileigh Gonzalez, David Kerstetter

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

No abstract provided.


First Record Of Nesting Ecology And Tumor-Forming Disease In Endangered Green Turtles (Chelonia Mydas) On Taiping Island, Taiwan, Tsung-Hsien Li, Po-Yu Wu, Ming-An Tsai Mar 2025

First Record Of Nesting Ecology And Tumor-Forming Disease In Endangered Green Turtles (Chelonia Mydas) On Taiping Island, Taiwan, Tsung-Hsien Li, Po-Yu Wu, Ming-An Tsai

The Thai Journal of Veterinary Medicine

Taiping Island is an important sea turtle nesting site in Taiwan. However, information on the nesting ecology on Taiping Island is still limited. The present study was conducted between 26 April and 3 June 2023 with the objective of collecting primary data on the sea turtle species that nest on the island. A total of 20 individual nesting green turtles were identified. No other sea turtle species were recorded nesting during this period. Five percent of nesting sea turtles had external tumors. The mean curved carapace length of all nesting female turtles was 98.2 cm. A total of 28 clutches …


(Winter Skate (Leucoraja Ocellata)) Jaw, Michael A. Birnbaum, David Kerstetter Feb 2025

(Winter Skate (Leucoraja Ocellata)) Jaw, Michael A. Birnbaum, David Kerstetter

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

No abstract provided.


Lack Of Consistent Diurnal Trends In Acoustic Metrics From Restored Coral Reefs, Jeremy Velázquez-Alvarado, Valentina Pérez-García, Javier S. Tellechea, Joni T. Backstrom, Alex Mercado-Molina Jan 2025

Lack Of Consistent Diurnal Trends In Acoustic Metrics From Restored Coral Reefs, Jeremy Velázquez-Alvarado, Valentina Pérez-García, Javier S. Tellechea, Joni T. Backstrom, Alex Mercado-Molina

Gulf and Caribbean Research

Once vibrant ecosystems, coral reefs are degrading at unprecedented rates due to natural and human—induced disturbances, necessitating immediate restoration and conservation efforts. Evaluating the success of these projects often involves assessing changes in reef biodiversity. Bioacoustics has emerged as a promising, non—invasive method for such evaluations, though its efficacy remains debated. This study aimed to determine whether the diurnal soundscapes of restored coral reefs are consistent across different time frames (months) and spatial scales (reefs), which is crucial for developing reliable monitoring tools for reef health. To achieve this, 2 commonly used acoustic indices, the Acoustic Complexity Index (ACI) and …


‘Who’S Your Daddy?’: Ddradseq Parentage In Broodstock-Offspring Pairs Of Diadema Antillarum In A Population Restoration Initiative, Bianca R. Rosendahl Jan 2025

‘Who’S Your Daddy?’: Ddradseq Parentage In Broodstock-Offspring Pairs Of Diadema Antillarum In A Population Restoration Initiative, Bianca R. Rosendahl

Undergraduate Scholarship and Creative Works

In the early 1980s Diadema antillarum, or the long-spined urchin, was hit by a catastrophic mass mortality event across the western Atlantic and Gulf of Mexico, inclusive of the Florida Keys. The cause of this die-off event was likely triggered by a pathogen or environmental stressor that decimated native populations by up to 98%. The species has not yet fully recovered and is struggling with recruitment success which is why it may benefit from an ex-situ recovery program. In this study, I used single nucleotide polymorphisms (SNPs) to identify genetic variation and analyze parentage in a captive population of …


Distribution And Ecology Of The Cedar Keys Mole Skink (Plestiodon Egregius Insularis), Kevin M. Enge, Louis A. Somma, Paul E. Moler, Travis M. Thomas, Matthew T. Fedler, John M. Matter, Dennis C. Haney Jan 2025

Distribution And Ecology Of The Cedar Keys Mole Skink (Plestiodon Egregius Insularis), Kevin M. Enge, Louis A. Somma, Paul E. Moler, Travis M. Thomas, Matthew T. Fedler, John M. Matter, Dennis C. Haney

Papers in Herpetology

We conducted surveys for the Cedar Keys Mole Skink, Plestiodon egregius insularis (Mount), during 1989– 1999 and 2015–2024, examined museum vouchers, and compiled personal observations from others to determine the status and distribution of this subspecies, which has the smallest geographic distribution of the five subspecies and is being considered for federal listing. We observed Cedar Keys Mole Skinks on Airstrip Island, Atsena Otie, Cedar Point, Deer Island, North Key, Scale Key, Seahorse Key, Snake Key, and possibly Dog Island. We have anecdotal reports of Mole Skinks on Way Key, which contains the most potential habitat and is the main …


Predation Of A Sperm Whale (Physeter Macrocephalus) By Killer Whales (Orcinus Orca) In Guanaja, Honduras, Gaby M. Ochoa, Eric Angel Ramos, Daniel Gonzalez-Socoloske Jan 2025

Predation Of A Sperm Whale (Physeter Macrocephalus) By Killer Whales (Orcinus Orca) In Guanaja, Honduras, Gaby M. Ochoa, Eric Angel Ramos, Daniel Gonzalez-Socoloske

Faculty Publications

No abstract provided.


Black Grouper (Mycteroperca Bonaci) Neurocranium, Nicholas Burchett, Kelsee Rotering, Marissa Rosas, David Kerstetter, Derek Burkholder Dec 2024

Black Grouper (Mycteroperca Bonaci) Neurocranium, Nicholas Burchett, Kelsee Rotering, Marissa Rosas, David Kerstetter, Derek Burkholder

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

No abstract provided.


Butterfly Peacock Bass (Cichla Ocellaris), Samuel K. Zellefrow, David Kerstetter, John Nichols Dec 2024

Butterfly Peacock Bass (Cichla Ocellaris), Samuel K. Zellefrow, David Kerstetter, John Nichols

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

No abstract provided.


Red Grouper (Epinephelus Morio) Neurocranium, David Ferreiro Dec 2024

Red Grouper (Epinephelus Morio) Neurocranium, David Ferreiro

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

No abstract provided.


Understanding Bigeye Scad (Selar Crumenophthalmus) In Southeast Florida: Age-Growth, Reproduction, And Diet, Mariah France Dec 2024

Understanding Bigeye Scad (Selar Crumenophthalmus) In Southeast Florida: Age-Growth, Reproduction, And Diet, Mariah France

All HCAS Student Capstones, Theses, and Dissertations

In southeastern Florida, the bigeye scad (Selar crumenophthalmus) is highly regarded as a baitfish for targeting billfish and other large sportfishes, often commanding market prices as live bait exceeding $180 per dozen. Despite its economic significance, there is limited knowledge regarding the species within the Atlantic Ocean, especially the population that occurs in Florida. Bigeye scad were collected monthly from local bait shops in Pompano Beach, Miami, and Islamorada to assess age-growth, reproductive behaviors, and dietary habits. Specimens from May to August had the highest values for length-weight relationships and gonadsomatic index, indicative of a spawning season during …


Red Snapper (Lutjanus Campechanus) Neurocranium, Michelle Bassali, Anthony D'Auria, David Kerstetter Nov 2024

Red Snapper (Lutjanus Campechanus) Neurocranium, Michelle Bassali, Anthony D'Auria, David Kerstetter

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

No abstract provided.


Largemouth Bass Neurocranium, Owen Duerbeck, Ian Thelwell, Oliva Weeks Nov 2024

Largemouth Bass Neurocranium, Owen Duerbeck, Ian Thelwell, Oliva Weeks

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

No abstract provided.


Black Grouper Neurocranium, Angelina Trapani-Banyra, Victoria Bruno, Mason Schleicher Nov 2024

Black Grouper Neurocranium, Angelina Trapani-Banyra, Victoria Bruno, Mason Schleicher

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

No abstract provided.


Snakehead Neurocranium, Alexis K. Crass, Megan E. Martiello, Matthew D. Gassmann, David Kerstetter Nov 2024

Snakehead Neurocranium, Alexis K. Crass, Megan E. Martiello, Matthew D. Gassmann, David Kerstetter

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

No abstract provided.


Black Grouper Neurocranium, Grace K. Triplett, Katelyn A. Mckimmy, Lacey Adamik, David Kerstetter Nov 2024

Black Grouper Neurocranium, Grace K. Triplett, Katelyn A. Mckimmy, Lacey Adamik, David Kerstetter

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

No abstract provided.


Red Snapper Neurocranium, Roman Devlin, Michael A. Birnbaum, David Kerstetter Nov 2024

Red Snapper Neurocranium, Roman Devlin, Michael A. Birnbaum, David Kerstetter

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

No abstract provided.


Butterfly Peacock Bass (Cichla Ocellaris) Neurocranium, Jasmyn Todaro, Emma Horton, David Kerstetter Nov 2024

Butterfly Peacock Bass (Cichla Ocellaris) Neurocranium, Jasmyn Todaro, Emma Horton, David Kerstetter

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

No abstract provided.


The Effects Of People, Time Of Day, And Season On Affiliative And Stereotypic Behaviors In Captive Rhinoptera Bonasus And Other Rays Across Two Human-Interactive Enclosures, Wren C. A. Newman Aug 2024

The Effects Of People, Time Of Day, And Season On Affiliative And Stereotypic Behaviors In Captive Rhinoptera Bonasus And Other Rays Across Two Human-Interactive Enclosures, Wren C. A. Newman

Theses and Dissertations

Cownose rays (Rhinoptera bonasus) are among the most common species found in aquaria, yet the impact of touch enclosures on their welfare remains largely unknown. While research on animal-visitor interactions has produced mixed results for other species, the lack of studies focusing on fish welfare poses a risk of overlooking potential welfare concerns. Therefore, we aimed to establish a baseline for cownose rays regarding stereotypic behaviors, sociality, and activity in captivity, and to examine the influence of human interaction on these behaviors. We collected over 700 hours of footage from two enclosures at Adventure Aquarium in Camden, NJ …


Maternal And Other Social Influences On Signature Whistle Structure Of A Captive Group Of Bottlenose Dolphins (Tursiops Truncatus), Riley Synan Aug 2024

Maternal And Other Social Influences On Signature Whistle Structure Of A Captive Group Of Bottlenose Dolphins (Tursiops Truncatus), Riley Synan

Theses and Dissertations

Bottlenose dolphins (Tursiops truncatus) are social animals that use acoustics as a major method of communicating across a marine environment. They also live in fission-fusion groups and thus interact with many conspecifics over a lifetime. Individual dolphins have a signature whistle that functions as an identity call and serves to maintain group cohesion in murky waters or during reconciliation. Dolphins exhibit vocal learning and the signature whistle of a calf may be modeled after the whistle of their mother or another individual in the pod as they develop. Mother-calf pairs or other related animals sometimes have similar whistle types. Some …


Microplastic Accumulation In The Marsh Periwinkle (Littoraria Irrorata), Sarah Keaton, Hannah Lukhard, Eli Windy, Manar Hasan Jul 2024

Microplastic Accumulation In The Marsh Periwinkle (Littoraria Irrorata), Sarah Keaton, Hannah Lukhard, Eli Windy, Manar Hasan

DePaul Discoveries

Contamination of oceans by microplastics (mm) currently poses a major threat to aquatic and terrestrial ecosystems worldwide. Recent attention towards this issue has raised questions about the extent to which microplastics have accumulated in the environment, and has led to an increase in studies on the effects of microplastics in various organisms. However, levels of contamination in protected natural areas are still largely unexplored, yet can offer an important empirical perspective on the issue. In addition, little is known about the potential effects of microplastics on behavior in the field. This research was conducted within the protected ACE Basin National …


Fiddler Crab Gut Microbiomes As An Indicator For Eutrophication Due To Waste-Water Contamination In Estuaries, Madison L. Geraci May 2024

Fiddler Crab Gut Microbiomes As An Indicator For Eutrophication Due To Waste-Water Contamination In Estuaries, Madison L. Geraci

Honors Theses

Estuaries are unique biogeochemical zones in coastal systems that provide a myriad of ecological functions: providing habitat for critically important fishery species, diverse species of plants and animals, and contributing to nutrient cycling. Estuaries are vulnerable to anthropogenic stressors as they are intersections between marine and terrestrial communities and are often the hotspot of coastal development and activity. Estuarine sediments act as repositories for anthropogenic contaminants, including excess nutrient runoffs and waste-water pollution that can cause states of eutrophication. Microorganisms are sensitive to these environmental changes, presenting a unique opportunity of being useful bioindicators of environmental stress. Isolating microorganisms from …


Phenotypic Plasticity In Pigmentation: Investigating Coloration Patterns In Anablepsoides Hartii Population Responses To Environmental Variation, Jasdeep Kaur May 2024

Phenotypic Plasticity In Pigmentation: Investigating Coloration Patterns In Anablepsoides Hartii Population Responses To Environmental Variation, Jasdeep Kaur

2024 Spring Honors Capstone Projects - Archive

In this study, we investigated the color-changing capabilities of Trinidadian killifish, Anablepsoides hartii, through exposure to varied color conditions over defined periods of time. Our experiment aims to understand adaptive responses when killifish are subjected to different color backgrounds, exploring their mechanisms to change color. By subjecting the species to different environmental color variations, we sought to discern color change patterns, which could indicate adaptive responses related to camouflage, stress, behavior clues, and physiological adjustments. Carefully controlling environmental factors, we monitored and documented the fishes’ color changes, aiming to provide insights into the interplay between fish’s developmental plasticity and its …


Trophic Ecology Of Black Swallowers (Scombriformes: Chiasmodontidae: Chiasmodon) In The Deep-Pelagic Gulf Of Mexico, Travis J. Kirk Apr 2024

Trophic Ecology Of Black Swallowers (Scombriformes: Chiasmodontidae: Chiasmodon) In The Deep-Pelagic Gulf Of Mexico, Travis J. Kirk

All HCAS Student Capstones, Theses, and Dissertations

The ecology of deep-pelagic predatory fishes remains poorly understood despite their importance as ecosystem regulators and energy transfer vectors. This study investigated the trophic ecology of three species of the predatory fish genus Chiasmodon (“black swallowers”) in the Gulf of Mexico, a region that serves as an analog for the global low-latitude deep pelagial, the world’s largest cumulative ecosystem. Foraging habits (e.g., selectivity, chronology, daily ration) of an “advanced” evolutionary fish in a system that is otherwise dominated by basal fish taxa, were quantitatively estimated via high-resolution stomach content analysis. A quantitative dataset of both predator and prey abundance, the …


Spotted Eagle Ray (Aetobatus Narinari) Jaw, Lili M. Mcelhill, Alison G. Novara, David W. Kerstetter Apr 2024

Spotted Eagle Ray (Aetobatus Narinari) Jaw, Lili M. Mcelhill, Alison G. Novara, David W. Kerstetter

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

No abstract provided.