A5068249710- Marine and fisheries research
- Fish Ecology and Management Studies
- Coral and Marine Ecosystems Studies
- Marine animal studies overview
- Marine Bivalve and Aquaculture Studies
- Fish Biology and Ecology Studies
- Wildlife Ecology and Conservation
- Marine Ecology and Invasive Species
- Marine and coastal plant biology
- Isotope Analysis in Ecology
- Species Distribution and Climate Change
- Avian ecology and behavior
- Fish biology, ecology, and behavior
- Identification and Quantification in Food
- Ichthyology and Marine Biology
- Water Quality and Pollution Assessment
- Water Quality Monitoring Technologies
- Arctic and Russian Policy Studies
- Water Quality and Resources Studies
- Hydrocarbon exploration and reservoir analysis
- Animal Behavior and Reproduction
- Food Industry and Aquatic Biology
- Maritime and Coastal Archaeology
- Genetic diversity and population structure
- Color perception and design
NOAA National Marine Fisheries Service
2016-2025
NOAA National Marine Fisheries Service Southeast Fisheries Science Center
2016-2025
National Oceanic and Atmospheric Administration
2020-2024
Oregon State University
2010
North Carolina State University
2004-2009
United States Geological Survey
2009
North Carolina Aquarium
2009
University of Wisconsin–Green Bay
2009
Underwater video has become an important tool for monitoring reef fish populations worldwide because it is nonextractive and not strongly selective. A variety of approaches have been developed to enumerate on videos, but our knowledge these metrics tested determine if they are proportional true abundance. We compared the most commonly used metric, MaxN (i.e., maximum number in a single frame during viewing interval), newly MeanCount mean observed series snapshots over using simulations,...
Approaches towards habitat conservation and restoration often include supplementing or enhancing existing, degraded, lost natural habitats. In aquatic environments, a popular approach enhancement is the introduction of underwater human-made structures artificial reefs. Despite nearly global prevalence reefs deployed to enhance habitat, it remains debated whether these function similarly comparable To help resolve this question, we conducted literature review accompanying meta-analysis fish...
Abstract Invasive lionfish pose an unprecedented threat to biodiversity and fisheries throughout Atlantic waters off of the southeastern United States, Caribbean Gulf Mexico. Here, we employ a spatially replicated Before-After-Control-Impact analysis with temporal pairing quantify for first time impact invasion on native fish abundance across broad regional scale over entire duration (1990–2014). Our results suggest that 1) lionfish-impacted areas States are most prevalent off-shore near...
The spatial dynamics of species are the result complex interactions between density-independent and density-dependent sources variability. Disentangling these two variability has challenged ecologists working in both terrestrial aquatic ecosystems. Using a novel spatially explicit statistical model, we tested for presence habitat selection yellowfin sole (Limanda aspera) eastern Bering Sea. We found specificities processes operating across ontogeny particularly with gender. Density-dependent...
Abstract Integrated step‐selection analysis (ISSA) is frequently used to study habitat selection using animal movement data. Methods for incorporating random effects in ISSA have been developed, making it possible quantify variability among animals their space‐use patterns. Although model both and parameters, applications date focused on the former despite widely acknowledged important role that plays determining ecological processes from individual ecosystem level. One potential explanation...
A joint analysis of tag return and telemetry data should improve estimates mortality rates for exploited fishes; however, the combined approach has thus far only been tested in terrestrial systems. We tagged subadult red drum ( Sciaenops ocellatus ) with conventional tags ultrasonic transmitters over 3 years coastal North Carolina, USA, to test efficacy – approach. There was a strong seasonal pattern monthly fishing rate (F) from both tags; highest F values occurred fall months lowest levels...
Abstract Walleye pollock Theragra chalcogramma (pollock hereafter) is a key ecological and economic species in the eastern Bering Sea, yet detailed synthesis of spatial temporal patterns ichthyoplankton this important region lacking. This knowledge gap particularly severe considering that egg larval distribution are essential to reconstructing spawning locations early life stages drift pathways. We used 19 yr collections determine distribution. Generalized additive models (GAMs) identified...
Abstract Extreme weather events strongly influence marine, freshwater, and estuarine ecosystems in myriad ways. We quantified movements of a demersal oceanic fish species (gray triggerfish Balistes capriscus ; N = 30) before, during, after two hurricanes 2017 using fine-scale acoustic telemetry at 37-m deep study site North Carolina, USA. During storms, gray movement emigration rates were 100% 2550% higher, respectively, than on days with no storms. found that increased much more correlated...
Occupancy models using incidence data collected repeatedly at sites across the range of a population are increasingly employed to infer patterns and processes influencing distribution dynamics. While such work is common in terrestrial systems, fewer examples exist marine applications. This disparity likely exists because replicate samples required by these account for imperfect detection often impractical obtain when surveying aquatic organisms, particularly fishes. We employ simultaneous...
External attachment of electronic tags has been increasingly used in fish studies. Many researchers have ad hoc methods and provided little or no validation for the assumption that tagging itself does not bias animal behaviour survival. The authors compared six previously published externally attaching acoustic transmitters to a tank holding experiment with black sea bass Centropristis striata (L.). They tracked tag retention, growth external trauma (as measure welfare) 60 days. For each...
Abstract Bacheler, N. M., Schobernd, Z. H., Berrane, D. J., C. Mitchell, W. A., and Geraldi, R. 2013. When a trap is not trap: converging entry exit rates their effect on saturation of black sea bass (Centropristis striata) – ICES Journal Marine Science, 70: 873–882. Catch are often used to index the abundance marine organisms, but catch (i.e. declining rate as fishing time increases) can decouple abundance. Researchers have struggled account for when using infer population dynamics. We...
Marine fish abundance and distribution often varies across spatial scales for a variety of reasons, this variability has significant ecological management consequences. We quantified the reef-associated species along southeast United States Atlantic coast using underwater video survey samples (N = 4,855 in 2011-2014) to elucidate within space, depths, habitats, as well describe broad-scale patterns richness. Thirty-two were seen at least 10 times on video, most commonly observed red porgy...
Abstract Fate assignment is crucial to the results of survival studies, particularly those that utilize acoustic tagging. Most current methodologies are at least partially subjective; thus, having a means objectively assigning fates would improve precision, accuracy, and utility such studies. We released 57 acoustically tagged fish belonging six deepwater grouper species off North Carolina, USA, via surface release recompressed with descender devices. applied three‐state hidden Markov model...
Abstract Most demersal fishes are difficult to observe and track due methodological analytical constraints. We used an acoustic positioning system elucidate the horizontal vertical movements of 44 red snapper ( Lutjanus campechanus ) off North Carolina, USA, in 2019. Mean movement rate distance bottom varied by individual, with larger generally moving faster spending more time farther than smaller individuals. generalized additive mixed models that accounted for temporal autocorrelation data...
ABSTRACT Objective We studied discard mortality of Red Snapper Lutjanus campechanus, a reef species that experiences barotrauma and hook trauma in its U.S. hook-and-line fisheries. Annual numbers discarded far exceed those harvested federal fisheries management regions, phenomenon emphasizes the importance quantifying fates. Methods To estimate mortality, three-dimensional movement data were collected using acoustic telemetry tags 3-km2 array receivers deployed 2019 2023 at natural area (38...
Abstract – Native fish species coexist with introduced in Puerto Rico's freshwater systems, yet competition between these has not been evaluated. We examined the extent of diet overlap native bigmouth sleepers Gobiomorus dormitor and largemouth bass Micropterus salmoides peacock Cichla ocellaris a Rico reservoir. Bigmouth exhibited an ontogenetic shift feeding habits, whereas were exclusively piscivorous at all sizes collected this study. Biologically significant was observed large bass, but...
Density dependence can stabilize or destabilize population size through negative positive feedback controls operating over different spatial and temporal scales. While many species have been shown to exhibit density dependence, the topic has received little attention in estuaries where environmental variability larval supply are often considered be primary drivers of dynamics. We used multiple long-term, fishery-independent data sets a unique modeling approach test hypothesis that juvenile...
With increasing human uses of the ocean, existing seascapes containing natural habitats, such as biogenic reefs or plant-dominated systems, are supplemented by novel, human-made habitats ranging from artificial to energy extraction infrastructure and shoreline installments. Despite mixture across seascapes, distribution extent these two types structured not well understood but necessary pieces information for ocean planning resource management decisions. Through a case study, we quantified...