A Fused Data Based Real-Time Collision Warning System For Ferries In The Yangtze River, 2022 School of Navigation, Jimei University, 1 Jiageng Road, Xiamen, Fujian 361021, China
A Fused Data Based Real-Time Collision Warning System For Ferries In The Yangtze River, Xiaojia Liu, Ke Zhang, Han Xue, Yingtang Li
Journal of Marine Science and Technology
The risks for ferries in the Yangtze River are relatively high, as they frequently cross the main traffic flows, leading to more intersections with other upwards and downwards ships. Although some studies have developed many models to assess collision risks in the Yangtze River, collision warning studies on ferries are scant. Meanwhile, most of the current collision studies evaluate risk based on AIS data, which are incapable of providing real-time ship information as they are discrete-time series data. In this work, fused data combining radar and AIS data are applied in a real-time ship collision warning model to assess the …
Experimental Study Of The Effect Of A Solid Wing Conveyor On Marine Debris Collection, 2022 Department of Systems and Naval Mechatronic Engineering, National Cheng Kung University, Tainan 701, Taiwan
Experimental Study Of The Effect Of A Solid Wing Conveyor On Marine Debris Collection, Erik Sugianto, Jeng-Horng Chen
Journal of Marine Science and Technology
Marine debris is a global problem that has not been resolved. This has encouraged the emergence of marine debris cleaning technologies, one of which is a conveyor ship. However, how effective conveyors are in collecting waste has not been studied. In this paper, experimental research on conveyors as marine debris collectors is investigated. The capability of catamarans with or without solid wing conveyors to collect marine debris is explored. Three kinds of marine debris collection models are used: no-wing conveyor, a 12.5-cm-long wing conveyor, and an 18.75-cm-long wing conveyor. Artificial marine debris (AMD) is spread on the water surface in …
Solving Nonlinear Boundary Value Problems With Nonlinear Integral Boundary Conditions By Local And Nonlocal Boundary Shape Functions Methods, 2022 Center of Excellence for Ocean Engineering, Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20231, Taiwan
Solving Nonlinear Boundary Value Problems With Nonlinear Integral Boundary Conditions By Local And Nonlocal Boundary Shape Functions Methods, Chein-Shan Liu, Yung-Wei Chen, Jian-Hung Shen
Journal of Marine Science and Technology
The paper considers the second-order nonlinear boundary value problem (NBVP), which is equipped with nonlinear integral boundary conditions (BCs). Two novel iterative algorithms are developed to overcome the difficulty of NBVP with double nonlinearities involved. In the first iterative algorithm, two nonlocal shape functions incorporating the linear integral terms are derived, and a nonlocal boundary shape function (NBSF) is formulated to assist the solution. Let the solution be the NBSF so that the NBVP can be exactly transformed into an initial value problem. The new variable is a free function in the NBSF, and its initial values are given. For …
Policy Implications Of Managing Biodiversity And Natural Resources Across International Boundaries, 2022 The University of Southern Mississippi
Policy Implications Of Managing Biodiversity And Natural Resources Across International Boundaries, Dillon Brown
Dissertations
Fisheries Management under the best of scenarios is a complex action. It requires thoughtful consideration of resources that tend to be out of sight, widely distributed, highly variable both spatially and temporally, and present dramatic variation in life history and ecology. No one management approach has been developed which can effectively incorporate all these variables. Add to this the issue of transnational boundary movements of these resources, and one discovers that this complex issue needs to be addressed by multiple entities, agencies, and nations to have any chance of success.
This research set out to discover ways in which fisheries …
Integrative Revision Of Five Genera Type Species For Zoanthidea To Bridge The Parataxonomy Gap, 2022 Nova Southeastern University
Integrative Revision Of Five Genera Type Species For Zoanthidea To Bridge The Parataxonomy Gap, Jacob Colbert
All HCAS Student Capstones, Theses, and Dissertations
Cnidarian order Zoanthidea is a relatively understudied group of invertebrates inhabiting a diverse range of marine habitats. Over/During the last two decades, species descriptions within this order have largely been based on a novel molecular parataxonomic system that relies almost exclusively on DNA barcodes to detect and describe new species. DNA barcodes are short, conserved sequences that are readily compared across taxa and used to detect previously described species. The existing taxonomic system, based on anatomical analysis and the identification of evolutionarily informative characters for phylogenetic inference, has been recently replaced by molecular parataxonomy by some scientists/researchers. While molecular sequence …
Vertical And Diel Behavior Patterns Of Adult Lemon Sharks (Negaprion Brevirostris) Around The Southeastern Florida And Western Bahamas Coastal Shelves, 2022 Nova Southeastern University
Vertical And Diel Behavior Patterns Of Adult Lemon Sharks (Negaprion Brevirostris) Around The Southeastern Florida And Western Bahamas Coastal Shelves, Jacquelyne Reuder
All HCAS Student Capstones, Theses, and Dissertations
The lemon shark (Negaprion brevirostris) is a large sub-tropical species found in the western Atlantic Ocean from Virginia to Brazil, including The Bahamas and Caribbean Sea. Previous studies on habitat utilization were conducted on juveniles in The Bahamas, but little is known about vertical depth and temperature preferences of adults. Given the species’ risk to overexploitation and habitat degradation, the IUCN Red List recently listed lemon sharks as Vulnerable. Pop-up satellite archival tags (PSATs) were deployed on lemon sharks (n=7) in 2008 and 2009 off Jupiter, Florida (n=6; two females, four males) and Tiger Beach, Bahamas (n=1; one …
Quantifying The Toxicological Effects Of The Organic Uv Filters Avobenzone And Homosalate On Acropora Cervicornis, 2022 Nova Southeastern University
Quantifying The Toxicological Effects Of The Organic Uv Filters Avobenzone And Homosalate On Acropora Cervicornis, Samantha F. Buckley
All HCAS Student Capstones, Theses, and Dissertations
Reports of the environmental effects of organic UV filters such as oxybenzone have led to the marketing of “reef-safe” sunscreen ingredients, including avobenzone and homosalate. Avobenzone provides broad-spectrum UV protection which blocks higher wavelength UV rays, the leading cause of aging and skin cancer. However, as polycyclic aromatic hydrocarbons (PAHs), organic UV filters have similar structures to crude oil and estrogens, some of which have been labeled endocrine disrupters. Common in personal care products, UV filters enter marine ecosystems via wastewater effluent and swimmers. Significant stress and mortality have been observed in juvenile and some adult scleractinian corals after exposure …
Toxicity And Effectiveness Of A New Two-Part Underwater Adhesive For Coral Restoration, 2022 Nova Southeastern University
Toxicity And Effectiveness Of A New Two-Part Underwater Adhesive For Coral Restoration, Matthew Rojano
All HCAS Student Capstones, Theses, and Dissertations
As coral cover decreases around the world due to disease, bleaching events, and anthropogenic effects, coral restoration projects become increasingly important. A crucial part of many coral restoration projects is the attachment of corals to substrates in nurseries or reef substrates during outplanting. The effective anchoring of transplants is a critical phase in coral restoration and the adhesive used for attachment is crucial. Commonly used adhesives have several drawbacks: there are long mixing times, low substrate adhesion, and lengthy hardening times. To address these issues and provide an effective alternative for coral restoration activities, a new two-part Mixed Adhesive was …
Assessing Broad-Scale Stony Coral Tissue Loss Disease Intervention Activities In Southeast Florida, Usa, 2022 Nova Southeastern University
Assessing Broad-Scale Stony Coral Tissue Loss Disease Intervention Activities In Southeast Florida, Usa, Kathryn Toth
All HCAS Student Capstones, Theses, and Dissertations
Reef-building corals are crucial to the long-term existence of Caribbean coral reef ecosystems, providing both direct and indirect, local and global, ecological, economic, and social benefits. Stony coral tissue loss disease (SCTLD) is endemic in southeast Florida first appearing in 2014 and present in 2022. Effective in situ disease intervention treatments using antibiotic paste stop disease progression ~ 90% of the time. Between May 2019 and April 2022, 1,037 corals, >85% of which were Montastraea cavernosa, were treated during disease intervention dives in southeast Florida. This study investigated intervention activities over three years in an effort to make them more …
Ship Groundings And Boulder Deployment: A Study On Restoration Of Ship Grounding Sites In The Kristin Jacobs Coral Reef Ecosystem Conservation Area, 2022 Nova Southeastern University
Ship Groundings And Boulder Deployment: A Study On Restoration Of Ship Grounding Sites In The Kristin Jacobs Coral Reef Ecosystem Conservation Area, Shane Wever
All HCAS Student Capstones, Theses, and Dissertations
Coral reefs are widely regarded as one of the world’s most important ecosystems. These ecosystems have been in a state of rapid decline worldwide due to chronic stressors and acute disturbances. Ship groundings on coral reefs are one of the most destructive acute disturbances, damaging both the biological community and the underlying reef framework. Once disturbed, these reef ecosystems often require restoration to promote recovery. Southeast Florida is home to an extensive high latitude reef system located near a highly developed and densely populated coast. In 2006, two large commercial vessels, the Spar Orion and Clipper Lasco, grounded north of …
Larval Ecology Of Atlantic Bluefin Tuna (Thunnus Thynnus): New Insights From Otolith Microstructure, Biotic, And Abiotic Analyses From The Gulf Of Mexico And Mediterranean Sea, 2022 Nova Southeastern University
Larval Ecology Of Atlantic Bluefin Tuna (Thunnus Thynnus): New Insights From Otolith Microstructure, Biotic, And Abiotic Analyses From The Gulf Of Mexico And Mediterranean Sea, Estrella Malca
All HCAS Student Capstones, Theses, and Dissertations
Atlantic bluefin tuna (ABT), Thunnus thynnus, spawn in the Gulf of Mexico (GoM) and the Mediterranean Sea (MED). Spawning occurs within narrow temporal and environmental parameters. Efforts to characterize growth of ABT in wild conditions revealed a wide range of growth variability during the early life stages. This series of studies examined potential biotic and abiotic influences of larval growth from seven ABT cohorts, and identified several key drivers of growth for this commercially valuable species. A detailed investigation of larval dynamics using otolith microstructure was conducted as follows. First, companion growth curves and stable isotope analysis from the same …
Caribbean Reef-Building Coral-Symbiodiniaceae Network: Identifying Symbioses Critical For System Stability In A Changing Climate, 2022 Nova Southeastern University
Caribbean Reef-Building Coral-Symbiodiniaceae Network: Identifying Symbioses Critical For System Stability In A Changing Climate, Shaman Patel
All HCAS Student Capstones, Theses, and Dissertations
Increasing global ocean temperatures and frequency of marine heatwaves pose dire consequences for coral reefs. High temperatures often lead to disruptions in coral symbiosis resulting in coral bleaching, increasing the mortality of corals. However, corals can potentially avoid bleaching peril by associating with thermally tolerant symbionts. Here we provide a tool for understanding symbiosis network stability of Caribbean reef-building corals. We created a network of Caribbean hermatypic corals and their associated Symbiodiniaceae phylotypes. A bleaching model was applied to this network to test for resilience and robustness (R50) to thermal stress. It was also layered with trait data for coral …
Scamp Grouper, (Mycteroperca Phenax) Neurocranium, 2022 Nova Southeastern University
Scamp Grouper, (Mycteroperca Phenax) Neurocranium, Liam L. Wilcox, David William Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium from 5.40 cm; total length unknown. Scamp Grouper, (Mycteroperca phenax)
Specimen received from Kerstetter's lab
Toro (Priacanthus Arenatus) Neurocranium, 2022 Nova Southeastern University
Toro (Priacanthus Arenatus) Neurocranium, Nicole Mozer, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium from 7.8 cm
Toro - Priacanthus arenatus
Collected from Kerstetter Fisheries & Avian Ecology Lab on 9/21/2022 by Nicole Mozer & David Kerstetter
Mahi Mahi (Coryphaena Hippurus) Neurocranium, 2022 Nova Southeastern University
Mahi Mahi (Coryphaena Hippurus) Neurocranium, Logan Exton, David William Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium from 13.335 cm total length (TL) Mahi Mahi (Coryphaena hippurus), collected from Fort Lauderdale on 04/11/2022 by Logan Exton
Crustacean Assemblage Structure Over The Charlie-Gibbs Fracture Zone Of The Mid-Atlantic Ridge Collected During The 2009 Henry B. Bigelow Expedition, 2022 Nova Southeastern University
Crustacean Assemblage Structure Over The Charlie-Gibbs Fracture Zone Of The Mid-Atlantic Ridge Collected During The 2009 Henry B. Bigelow Expedition, Kathryn Medina
All HCAS Student Capstones, Theses, and Dissertations
The Charlie Gibbs Fracture Zone (CGFZ) consists of two nearly parallel fracture transform faults that intersect the Mid-Atlantic Ridge (MAR) axis. This area has high primary productivity and biomass levels due to the topography and water. A predominant hydrographic feature of the MAR is the Sub-Polar Front (SPF) which runs along the southern edge of the CGFZ and is known as a biogeographical boundary for multiple species. As part of The Census of Marine Life project Patterns and Processes of the Ecosystem of the northern Mid-Atlantic (MAR-ECO), this study analyzed the abundance and distribution patterns of the CGFZ crustacean community …
A Colonial-Nesting Seabird Shows No Heart-Rate Response To Drone-Based Population Surveys, 2022 Great Lakes Institute for Environmental Research
A Colonial-Nesting Seabird Shows No Heart-Rate Response To Drone-Based Population Surveys, Erica A. Geldart, Andrew F. Barnas, Christina A.D. Semeniuk, H. Grant Gilchrist, Christopher M. Harris, Oliver P. Love
Great Lakes Institute for Environmental Research Publications
Aerial drones are increasingly being used as tools for ecological research and wildlife monitoring in hard-to-access study systems, such as in studies of colonial-nesting birds. Despite their many advantages over traditional survey methods, there remains concerns about possible disturbance effects that standard drone survey protocols may have on bird colonies. There is a particular gap in the study of their influence on physiological measures of stress. We measured heart rates of incubating female common eider ducks (Somateria mollissima) to determine whether our drone-based population survey affected them. To do so, we used heart-rate recorders placed in nests to quantify their …
Channel Catfish - Ictalurus Punctatus, 2022 Nova Southeastern University
Channel Catfish - Ictalurus Punctatus, Jason E. Rosales, David William Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium total length is 110.81 mm, [CHANNEL CATFISH , Ictalurus punctatus} collected from Canal in Davie on November 18th, 2022 by Zachary
Workshops Report For Mesophotic And Deep Benthic Community Fish, Mobile Invertebrates, Sessile Invertebrates And Infauna, 2022 CSS, Inc.
Workshops Report For Mesophotic And Deep Benthic Community Fish, Mobile Invertebrates, Sessile Invertebrates And Infauna, Rachel Bassett, Stacey L. Harter, Randy Clark, Ian Zink, Katherine Hornick, Jennifer Hart, Hanna Bliska, Melissa Carle, Tracey Sutton, Amanda Demopoulos, Andy David, Kristopher Benson, Jill Bourque, Martha Nizinski, Nancy Prouty, Stephanie Sharuga, Alicia Caporaso, Jennifer Le, Jennifer Herting, Cheryl Morrison, Matthew Poti
Marine & Environmental Sciences Faculty Reports
Two workshops with subject matter experts in the appropriate fields, were held in November and December 2021 to elicit guidance and feedback from the broader mesophotic and deep benthic scientific community. These workshops focused on best practices/approaches and identifying data gaps relative to habitat assessment and evaluation goals of the Mesophotic and Deep Benthic Community (MDBC) restoration portfolio. The first workshop was a combined effort of the Habitat Assessment and Evaluation (HAE) Project Team and the Deepwater Horizon (DWH) Program. Industrial Economics, Inc. (IEc) provided extensive workshop planning, organizing, execution, and facilitation support during all stages of the workshop. Based …
Long-Term Patterns Of An Interconnected Core Marine Microbiota, 2022 Edith Cowan University
Long-Term Patterns Of An Interconnected Core Marine Microbiota, Anders K. Krabberød, Ina M. Deutschmann, Marit F. M. Bjorbækmo, Vanessa Balagué, Caterina R. Giner, Isabel Ferrera, Esther Garcés, Ramon Massana, Josep M. Gasol, Ramiro Logares
Research outputs 2022 to 2026
Background Ocean microbes constitute ~ 70% of the marine biomass, are responsible for ~ 50% of the Earth’s primary production and are crucial for global biogeochemical cycles. Marine microbiotas include core taxa that are usually key for ecosystem function. Despite their importance, core marine microbes are relatively unknown, which reflects the lack of consensus on how to identify them. So far, most core microbiotas have been defined based on species occurrence and abundance. Yet, species interactions are also important to identify core microbes, as communities include interacting species. Here, we investigate interconnected bacteria and small protists of the core pelagic …