- Parasite Biology and Host Interactions
- Identification and Quantification in Food
- Transportation Planning and Optimization
- Bird parasitology and diseases
- Marine and fisheries research
- Fish Ecology and Management Studies
- Wildlife Ecology and Conservation
- Leech Biology and Applications
- Laser Design and Applications
- Aquaculture disease management and microbiota
- Genetic diversity and population structure
- Electric Power Systems and Control
- Parasites and Host Interactions
- Acoustic Wave Resonator Technologies
- Transportation Safety and Impact Analysis
- Advanced Optical Imaging Technologies
- Coral and Marine Ecosystems Studies
- Transportation Systems and Infrastructure
- Photonic and Optical Devices
- Machine Fault Diagnosis Techniques
- Radiation Effects in Electronics
- Water Quality and Pollution Assessment
- Vanadium and Halogenation Chemistry
- Animal Ecology and Behavior Studies
- Urban Stormwater Management Solutions
University of Kentucky
2025
Kettering University
2019
Marine Institute
1997-2018
NOAA National Marine Fisheries Service Southwest Fisheries Science Center
2015
Stanford University
1966-1969
Guy's Hospital
1956
First Page
A new marine toxin dinophysistoxin-2 (DTX-2)4, isolated from toxic Irish mussels and biogenetically related to the toxins okadaic acid 1 dinophysistoxin-1 (DTX-1)2, principal agents responsible for diarrhetic shellfish poisoning (DSP), is reported.
Abstract German cockroaches (Blattella germanica (L.)) are a persistent pest in affordable housing and studies indicate that residents implement control on their own to deal with within homes. While many do-it-yourself (DIY) options have proven ineffective, baits widely considered be viable DIY solution for who do not access professional services. To evaluate efficacy, we tested consumer-use (Combat gel bait, Combat bait stations, Hot Shot liquid stations) both laboratory two-choice assays...
Abstract Sea lice infestation as a source of marine mortality outwardly migrating Atlantic salmon smolts has been investigated by treating groups ranched salmon, prior to release, with prophylactic sea treatment conferring protection from infestation. A number studies have carried out in Ireland using both established populations and hatchery reared fish imprinted for 5–8 weeks the sites experimental releases. In this study, data on 352 142 twenty‐eight releases, at eight locations along...
Long-range holographic experiments have been performed over distances as large 12 km. Holograms and images of retroreflector Scotchlite objects were obtained. The reference wave was supplied by a placed next to the object, source illumination Q-switched ruby laser. Resolutions obtained varied with atmospheric seeing conditions, ranging from 3 see arc 0.5 arc. primary practical problem encountered detector saturation, consequence limited dynamic range photographic film. use low contrast...
We collected blood samples (n = 49) from 43 Andean Bears (Tremarctos ornatus) in Ecuador between September 1995 and May 2006 analyzed them for 11 serum biochemical 13 hematological parameters. Results were grouped compared according to the bears' life condition (captive or free-ranging), sex, age, body mass. Free-ranging bears had higher glucose monocyte levels than captive bears, but slightly lower mean cellular hemoglobin concentrations. Male protein female bears. Adult showed of...
The control of sea lice infestations on cultivated Atlantic salmon is a major issue in many regions the world. numerous drivers which shape priorities and objectives strategies vary for different regions/jurisdictions. These range from animal welfare economic producers, to mitigation any potential impacts wild stocks. Veterinary ethics, environmental therapeutants, organic certification produce are, amongst others, additional sets factors should be considered. Current best practice both EU...
Abstract A fully coupled ecosystem model is used to identify the effects of environmental conditions and upwelling variability on growth juvenile Chinook salmon in central California coastal waters. The framework consists an ocean circulation submodel, a biogeochemical individual‐based submodel for salmon. Simulation results indicate that years favorable off are characterized by particularly intense early season (i.e., March through May), leading enhanced krill concentrations during summer...
The potential impact of sea lice infestation on outwardly migrating Atlantic salmon smolts has been investigated by treating populations ranched salmon, prior to release, with a prophylactic treatment conferring protection from infestation, for up 9 weeks. Established well described rates return were chosen investigate the contribution early louse, Lepeophtheirus salmonis mortality in salmon. Against backdrop declining trend survival many studies are attempting elucidate causes this decline....
Caligid sea lice represent a significant threat to salmonid aquaculture worldwide. Population genetic analyses have consistently shown minimal population structure in North Atlantic Lepeophtheirus salmonis, frustrating efforts track louse populations and improve targeted control measures. The aim of this study was test the power reduced representation library sequencing (IIb-RAD sequencing) coupled with random forest machine learning algorithms define markers for fine-scale discrimination...
In order to evaluate the performance of various sea lice management strategies, data sets from a number salmon farm sites on west coast Ireland were examined. These collected as part ongoingNational Sea Lice Monitoring Programme in Ireland. Temporal and geographic variations infestations Lepeophtheirus salmonis Caligus elongatus are described two species farmedsalmonids, Salmo salar L. Oncorhynchus mykiss Walbaum. Patterns transmission, both within between fish populations, discussed...
Infestation patterns of Caligus elongatus on farmed Atlantic salmon and rainbow trout were investigated at several sites along the west coast Ireland. Parasite abundances examined in relation to host species, farm location season. Differences found relative prevalence infestation between trout. generally contributed more as a proportion total lice burden than salmon. Evidence possible parasite transmission from wild fish stocks was number where marked seasonal changes abundance observed. A...
The investigation of specific characteristics Lepeophtheirus salmonis populations on farmed salmon was made possible by the examination parasite infestation parameters regular non destructive samples taken for up to six years in five bays. Perennial persistence seasonal patterns as exhibited intensity, prevalence and abundance examined. Site were detected which appeared be independent inter-annual variations. Seasonal variations individual lice size fecundity, temporal variation population...
Atlantic salmon (Salmo salar) returns to rivers in Ireland have fallen the last decade resulting dramatic closure or curtailment of traditional fisheries. Concerns that stocks were slow recover prompted further investigation all factors believed impact on salmon. In examining geographic and temporal trends stock abundance at a River Basin District level, effect aquaculture sites freshwater habitat quality as potential drivers are evaluated. This study found no correlation between presence...
The present study quantified the vertical and horizontal distribution of sub-adult Chinook salmon Oncorhynchus tshawytscha in nearshore marine environments. Depth-specific hook line sampling was conducted along Pacific Ocean coast Washington, USA. Our analysis, based on 187 from 1299 deployments 6616 hooks, revealed a wide waters, with distinct patterns associated fish size age. that spent one winter waters were more likely to be caught at greater depths than those their first year sea,...