- Marine and fisheries research
- Marine Bivalve and Aquaculture Studies
- Fish Ecology and Management Studies
- Coral and Marine Ecosystems Studies
- Isotope Analysis in Ecology
- Genetic and phenotypic traits in livestock
- Phonetics and Phonology Research
- Marine animal studies overview
- Marine and environmental studies
- Diatoms and Algae Research
- Coastal and Marine Management
- Biocrusts and Microbial Ecology
- Ichthyology and Marine Biology
- Plant Surface Properties and Treatments
- Genetic diversity and population structure
- Arctic and Antarctic ice dynamics
Inter-American Tropical Tuna Commission
2010-2018
James Madison University
2014
In the Pacific, blue marlin are an incidental catch of longline fisheries and important resource for big game recreational fishing. Over past two decades, assessments by different techniques have yielded results ranging from indication declining stock to a state sustained yield at approximately maximum average level. Longline fishing practices changed over years since 1950s in response changes principal target species gear developments. Despite increasingly sophisticated attempts standardize...
Abstract We have extracted information on the habitats of bigeye ( Thunnus obesus ), skipjack Katsuwonus pelamis ) and yellowfin albacares in Eastern Tropical Pacific Ocean by matching spatial‐temporal distribution catch effort purse seine longline fleets collected Inter‐American Tuna Commission with oceanographic conditions subjecting matched data to Quotient Analysis General Additive Models GAM s). These analyses yielded following results. The defined analysis young fish differ...
We developed an iterative sequential random utility model to investigate the social and environmental determinants of spatiotemporal decision process tuna purse-seine fishery fishing effort in eastern Pacific Ocean. Operations gear mark checkpoints a continuous complex decision-making process. Individual fisher behavior is modeled by identifying diversified choices over decision-space for entire trip, which allows inclusion prior current vessel locations conditions among explanatory...
Abstract Striped marlin ( Kajikia audax ) is an epipelagic species distributed in tropical and temperate waters of the Pacific Ocean. In central eastern Ocean, it captured principally commercial longline fisheries, small artisanal however, also taken throughout its range this region as incidental catch tuna purse‐seine fishery. Previous studies suggest that overexploitation climate change may reduce abundance cause changes spatial distributions marine species. The main objective study was to...
Abstract We have developed a set of tools that operate within an aquatic geographic information system to improve the accessibility, and usability remote‐sensed satellite computer‐modeled oceanographic data for marine science ecosystem‐based management. The form Pelagic Habitat Analysis Module ( PHAM ), which can be applied as modeling platform, investigative aid in scientific research, or utilized decision support ecological Applications include fisheries, biology, physical biological...
Swordfish (Xiphias gladius) are harvested in target and non-target fisheries throughout the eastern Pacific Ocean (east of 150°W). Analyses trends catch rates (catch per unit effort) standardized using general linear models indicate that there two stocks have a north–south boundary at 5°S latitude; this is striking contrast to 10°N has generally been assumed by previous studies. Trends effort held relatively level for north stock increasing south stock. Considering these given annual catches...
Designing energy systems that are adaptable and provide undisturbed service in different climate conditions is an essential challenge for sustainable design. This project involves the design construction of a Climate Adaptable Solar Energy (CASE) System aims to address performance reduction due changing environmental conditions. The CASE biomimetic design, inspired by lichen, applies biological concepts protection conversion achieve adaptability. Symbiotic organisms fungus algae within...