A5033987264- Coral and Marine Ecosystems Studies
- Fish Ecology and Management Studies
- Marine Ecology and Invasive Species
- Marine and fisheries research
- Soil and Water Nutrient Dynamics
- Water Quality and Resources Studies
- Hydrology and Watershed Management Studies
- Marine Bivalve and Aquaculture Studies
- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Marine Invertebrate Physiology and Ecology
- Identification and Quantification in Food
- Water Quality and Pollution Assessment
- Water Quality Monitoring Technologies
- Coastal and Marine Management
- Hydrological Forecasting Using AI
- Marine and coastal ecosystems
- Genetic diversity and population structure
- Oceanographic and Atmospheric Processes
- Oil Spill Detection and Mitigation
- Isotope Analysis in Ecology
- Integrated Water Resources Management
- Cephalopods and Marine Biology
- Fungal Biology and Applications
- Ocean Acidification Effects and Responses
Nova Southeastern University
2011-2022
University of North Florida
2012
United States Geological Survey
2001-2003
Pacific Island Ecosystems Research Center
2001-2003
As in the tropical Atlantic, Acropora populations southern Persian/Arabian Gulf plummeted within two decades after having been ecosystem engineers on most wave-exposed reefs since Pleistocene. Since 1996/1998 live coral cover declined by over 90% many areas, primarily due to bleaching and diseases caused rising temperatures. In formerly dominant table-coral species A. downingi, population dynamics corresponding disturbance regimes was quantified three transition matrices (lower pre-1996;...
Several factors have been found to structure the spatial and temporal patterns of deep scattering layers (DSLs) including temperature, oxygen, salinity, light, physical oceanographic conditions. We examine variance in acoustically detected DSLs northern Gulf Mexico investigate importance multiple biotic abiotic mesoscale conditions (e.g., Loop Current-origin water (LCOW), frontal boundaries (FB), common (CW)) structuring DSLs. Results indicate heterogeneity vertical position acoustic...
In this study, we demonstrate how perturbations to the Florida Current caused by hurricanes are relevant spread of invasive lionfish from Bahamas. Without such perturbations, current represents a potential barrier transport planktonic eggs and larvae across Straits Florida. We further show that once became established in Bahamas, significantly hastened their through island chain. gain these insights through: (1) an analysis direction velocity simulated ocean currents during passage (2)...
The pelagic Gulf of Mexico (GoM) is a complex system dynamic physical oceanography (western boundary current, mesoscale eddies), high biological diversity, and community integration via diel vertical migration lateral advection. Humans also heavily utilize this system, including its deep-sea components, for resource extraction, shipping, tourism, other commercial activity. This utilization has had impacts, some with disastrous consequences. Deepwater Horizon oil spill (DWHOS) occurred at...
Animal movement and habitat selection are in part a response to landscape heterogeneity. Many studies of necessarily use environmental covariates that readily available over large‐scales, which assumed representative functional features such as resource availability. For widely distributed species, may not be consistent across ecosystems, any specific covariate is driven by its biological relevance within the context each ecosystem. Thus, study species limited geographic region provide...
The Gulf of Mexico experiences frequent perturbations, both natural and anthropogenic. To better understand the impacts these events, we must inventory variability within ecosystem, communities, species, populations, contextualize findings in relation to physical features. Here, present an integrated study comparative population genomics biophysical oceanography. Targeting three species mesopelagic shrimp common midwater (Acanthephyra purpurea, Systellaspis debilis, Robustosergia robusta),...
The Indo-pacific panther grouper (Chromileptes altiveli) is a predatory fish species and popular imported aquarium in the United States which has been recently documented residing western Atlantic waters. To date, most successful marine invasive lionfish (Pterois volitans/miles), which, as for grouper, assumed to have introduced wild through releases. However, unlike lionfish, not yet thought an established breeding population Atlantic. Using proven modeling technique developed track...
The scale of the Deepwater Horizon disaster was and is unprecedented: geographic extent, pollutant amount, countermeasure scope, most relevance to this Research Topic issue, range ecotypes affected. These include coastal/nearshore, continental shelf, deep benthic, open-ocean domains, last which subject synthesis. ecotype comprises ~90% volume Gulf Mexico. exact percentage contaminated with toxins unknown due its three-dimensional nature dynamics, but estimates suggest that footprint...
Abstract Mesoscale oceanic features such as eddies generate considerable environmental heterogeneity within the pelagic oceans, but their transient nature makes it difficult to identify both spatial and temporal extent effects on distribution of fauna. Simplifying these complex using a biologically meaningful classification system will likely be useful first step in understanding influence structuring open‐ocean ecosystems. In this study, we present tool classify environment Gulf Mexico...
Abstract Throughout the Galápagos, differences in coral reef development and population dynamics were evaluated by monitoring populations from 2000–2019, environmental parameters (sea temperatures, pH, NO 3 − , PO 4 3− ) 2015–19. The chief goal was to explain apparent community between northern (Darwin Wolf) southern (Sta. Cruz, Fernandina, San Cristóbal, Española, Isabela) islands. Site species richness highest at Darwin Wolf. In three most common taxa, a declining North (N)-South (S) trend...
Comparison of two Clark cell type dissolved oxygen sensors with three optical in the Tualatin River, Oregon, indicated that were less prone to fouling drift and calibration drift. In cleanings calibrations over 3-week study, cells exhibited drifts ranging from 0.17 0.37 mg/L (milligrams per liter) –0.22 0.03 mg/L. The had 0 0.02 –0.09 after 2–3 weeks deployment. Measurements by compared well each other point measurements concentration using Winkler method, indicating as accurate under study...
Predicting and averting the spread of invasive species is a core focus resource managers in all ecosystems.Patterns invasion are difficult to forecast, compounded by lack user-friendly distribution model (SDM) tools help control efforts.This paper presents web-based cellular automata hybrid modeling tool developed study pattern lionfish (Pterois volitans/miles) western Atlantic natural extension our previous study.Our goal make publically available this SDM demonstrate both test case...
The Indo-pacific panther grouper (Chromileptes altiveli) is a predatory fish species and popular imported aquarium in the United States which has been recently documented residing western Atlantic waters.To date, most successful marine invasive lionfish (Pterois volitans/miles), which, as for grouper, assumed to have introduced wild through releases.However, unlike lionfish, not yet thought an established breeding population Atlantic.Using proven modeling technique developed track invasion,...
Air is entrained in water as it flows through the spillways of dams, which causes an increase concentration total dissolved gas downstream from dams. The elevated concentrations can adversely affect fish and other freshwater aquatic life. An analysis total-dissolved-gas water-temperature data collected at eight monitoring stations on lower Columbia River Oregon Washington 2011 indicated following: During spill season April–August 2011, hourly values (TDG) were larger than 115-percent...