A5063020735- Marine and fisheries research
- Fish Ecology and Management Studies
- Marine animal studies overview
- Coral and Marine Ecosystems Studies
- Isotope Analysis in Ecology
- Underwater Acoustics Research
- Animal Behavior and Reproduction
- Marine Biology and Ecology Research
- Oceanographic and Atmospheric Processes
- Arctic and Antarctic ice dynamics
- Marine Bivalve and Aquaculture Studies
- Food Industry and Aquatic Biology
- Coastal wetland ecosystem dynamics
- Ichthyology and Marine Biology
- Oil Spill Detection and Mitigation
- Marine and coastal ecosystems
- Marine and coastal plant biology
- Coastal and Marine Dynamics
- Methane Hydrates and Related Phenomena
- Animal Vocal Communication and Behavior
- Tropical and Extratropical Cyclones Research
- Coastal and Marine Management
- Identification and Quantification in Food
- Marine and Offshore Engineering Studies
- Avian ecology and behavior
Florida International University
2015-2024
Institute for Coastal Marine Environment
2015
National Research Council
2015
Uppsala University
2015
University of Copenhagen
2015
Leibniz Institute of Freshwater Ecology and Inland Fisheries
2015
Kyoto University
2015
Humboldt-Universität zu Berlin
2015
Carleton University
2015
Louisiana State University
2007-2014
Abstract We present a semiautomated analytical approach incorporating both image and acoustic processing techniques to apply dual‐frequency identification sonar (DIDSON) data. Our objectives were (1) develop standardized analysis pathway in order reduce the effort associated with counting, measuring, tracking fish targets; (2) empirically obtain estimates of basic target information (e.g., size, abundance, speed, direction travel). Analyses conducted on DIDSON data collected at three...
A novel image analysis‐based technique applied to unmanned aerial vehicle (UAV) survey data is described detect and locate individual free‐ranging sharks within aggregations. The method allows rapid collection of quantification fine‐scale swimming collective patterns sharks. We demonstrate the usefulness this in a small‐scale case study exploring shoaling tendencies blacktip reef Carcharhinus melanopterus large lagoon Moorea, French Polynesia. Using our approach, we found that C. displayed...
Abstract The ecosystem approach is being promoted as the foundation of solutions to unsustainability fisheries. However, because broadly inclusive, science for its implementation often considered be overly complex and difficult. When needed an fisheries perceived this way, products cannot keep pace with critics, thus encouraging partisan political interference in management proliferation “faith‐based solutions. In paper we argue that one way effectively counter politicization decision‐making...
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...
Oceanic diel vertical migration (DVM) constitutes the daily movement of various mesopelagic organisms migrating vertically from depth to feed in shallower waters and return deeper water during day. Accurate classification taxa that participate DVM remains non-trivial, there can be discrepancies between methods. DEEPEND consortium (www.deependconsortium.org) scientists have been characterizing diversity trophic structure pelagic communities northern Gulf Mexico (nGoM). Profiling has included...
The Freeport Sulphur Mine Artificial Reef (FSMAR) is a decommissioned oil and gas platform serves as the largest artificial reef complex in northern Gulf of Mexico (NGOM). Given increasing numbers reefs NGOM, yet paucity information that exists, goals this study were to evaluate biomass, density, size structure fishes associated with FSMAR. Mobile acoustic surveys used assess both horizontal vertical distribution abundance shallow water (16 m depth) adjacent soft-bottom habitats extending 1...
This study addressed the lack of recovery Pacific herring (Clupea pallasii) in Prince William Sound, Alaska, relation to humpback whale (Megaptera novaeangliae) predation. As whales rebound from commercial whaling, their ability influence prey through top-down forcing increases. We compared potential foraging on three populations coastal Gulf Alaska: Lynn Canal, and Sitka Sound (133–147°W; 57–61°N) 2007 2009. Information distribution, abundance, diet availability as were used correlate...
Understanding the stress responses of sharks to recreational catch and release fishing has important management conservation implications. The blacktip shark Carcharhinus limbatus is a popular species targeted throughout western, central eastern Gulf Mexico (Gulf) yet it unclear what levels physiological result from catch-release practices with hook line gear if in post-release mortality. This study correlates response through blood chemistry analysis examines behaviour adult caught...
Abstract We observed patterns in echograms of data collected with a dual‐frequency identification sonar (DIDSON) that were related to the tail beats fish. These reflect size, shape, and swimming motion fish also depend on fish's angle relative axis beam. When is large enough sound sufficient intensity body angled such beat produces periodic changes range extent covered by image, then becomes clearly visible plot maximum all beams. The analysis DIDSON mix upstream‐migrating Chinook salmon...
Abstract The mangrove–seagrass–patch reef ( MSP ) ecosystem serves as the principal back‐reef nursery for many fishes in Caribbean, but functional roles of habitats that form this seascape remain unclear. We assessed and trophic connectivity two common (schoolmaster, Lutjanus apodus ; white grunt, Haemulon plumierii one predator (great barracuda, Sphyraena barracuda a Caribbean using acoustic telemetry natural dietary tracers. Triangulated positions from an positioning system indicated L. H....
Abstract The diversity and abundance of fish inhabiting complex reef habitats poses some challenges to surveys based on optical techniques, especially for schooling which are difficult enumerate with such methods. Acoustic often used effectively estimate the distribution but suffer from boundary effects limited species discrimination. To reconcile these drawbacks, we present an integrated acoustic–optical survey method, fishes in a subtropical habitat Shark Bay, Western Australia, exploiting...
Aggregation is commonly thought to improve animals' security. Within aquatic ecosystems, group-living prey can learn about immediate threats using cues perceived directly from predators, or collective behaviours, for example, by reacting the escape behaviours of companions. Combining different modalities may accuracy antipredatory decisions. In this study, we explored sensory that mediate responses herring (Clupea harengus) when in a large school (approximately 60 000 individuals). By...
Flying fishes (family Exocoetidae) are important components of epipelagic ecosystems and targeted by fishing fleets in the Caribbean Sea elsewhere. However, owing to their anti-predator behavior habitats, ecology, abundance, distributions only partially known. From September 20 October 6, 2011, we conducted a series surveys over large area (approximately 75,000 km2) northern Gulf Mexico (87°W–90.5°W, 28°N–30°N). The used an airborne lidar vessel-based sampling, supported near real time...