A5072750119- Ichthyology and Marine Biology
- Fish Ecology and Management Studies
- Genomics and Phylogenetic Studies
- Marine and fisheries research
- Aquaculture disease management and microbiota
- Identification and Quantification in Food
- Marine animal studies overview
- Fish Biology and Ecology Studies
- Coral and Marine Ecosystems Studies
- Underwater Acoustics Research
- Higher Education Research Studies
- Target Tracking and Data Fusion in Sensor Networks
- Distributed Control Multi-Agent Systems
- Turtle Biology and Conservation
- Underwater Vehicles and Communication Systems
- Communication in Education and Healthcare
- Youth Development and Social Support
- Animal Behavior and Reproduction
Scripps Institution of Oceanography
2013-2024
University of California, San Diego
2012-2024
Point Loma Nazarene University
2022-2023
University of San Diego
2017-2022
Institute of Oceanography
2022
University of Saint Katherine
2017
How animals navigate the constantly moving and visually uniform pelagic realm, often along straight paths between distant sites, is an enduring mystery. The mechanisms enabling navigation in cartilaginous fishes are particularly understudied. We used shoreward by leopard sharks (Triakis semifasciata) as a model system to test whether olfaction contributes navigation. Leopard were captured alongshore, transported 9 km offshore, released, acoustically tracked for approximately 4 h each until...
Despite the ongoing need for shark conservation and management, prevailing negative sentiments marginalize these animals legitimize permissive exploitation. These attitudes arise from an instinctive, yet exaggerated fear, which is validated reinforced by disproportionate sensationalistic news coverage of 'attacks' highlighting shark-on-human violence in popular movies documentaries. In this study, we investigate another subtler, powerful factor that contributes to fear: ominous background...
Abstract Globally, one quarter of shark and ray species are threatened with extinction due to overfishing. Effective conservation management can facilitate population recoveries. However, these efforts depend on robust data movement patterns stock structure, which lacking for many species, including the Critically Endangered soupfin Galeorhinus galeus , a circumglobal coastal‐pelagic species. Using passive acoustic telemetry, we continuously tracked 34 mature female sharks, surgically...
Abstract Barotrauma—injury induced by changes in pressure—is a widespread challenge for successfully releasing fishes following capture. We used acoustic telemetry to examine the long-term post-release survival and behaviour of four rockfish species (genus Sebastes) suffering from barotrauma capture using recreational fishing techniques. placed particular emphasis on examining Cowcod (Sebastes levis) Bocaccio paucispinis), two historically overfished along United States West Coast that serve...
The epidermis of Chondrichthyan fishes consists dermal denticles with production minimal but protein-rich mucus that collectively, influence the attachment and biofilm development microbes, facilitating a unique epidermal microbiome. Here, we use metagenomics to provide taxonomic functional characterization microbiome Triakis semifasciata (leopard shark) at three time-points collected across 4 years identify links between microbial groups host metabolism. Our aims include (1) describing...
Abstract Skin color aberrations are naturally occurring abnormal pigment patterns that generally rare among chondrichthyans. In this study, we highlight different skin from observations of four shark species native to southern California, USA. We report the first recorded instance apparent leucism (regional pigmentation loss), in a California horn Heterodontus francisci (Girard 1855) and tope Galeorhinus galeus (Linnaeus 1758). also second documented occurrence albinism swell Cephaloscyllium...
Sevengill sharks are common inhabitants of estuaries and coastal areas particularly abundant in San Francisco Bay (SFB). There is limited knowledge about the level residency migratory movements this species. We describe degree residence sevengill SFB nearby locations, using ultrasonic tags automated listening stations. Sevengills showed a high SFB, to Golden Gate (GG) area where they have strong site preference, both seasonally inter-annually. Site fidelity was also highest at GG. In with...
Characterizations of shark-microbe systems in wild environments have outlined patterns species-specific microbiomes; however, whether captivity affects these trends has yet to be determined. We used high-throughput shotgun sequencing assess the epidermal microbiome belonging leopard sharks (Triakis semifasciata) captive (Birch Aquarium, La Jolla California born and held permanently captivity), semi-captive (held for <1 year duration scheduled release; Scripps Institute Oceanography, San...
This paper presents a method for modeling and then tracking the 2D planar size, location, orientation, number of individuals an animal aggregation using Autonomous Underwater Vehicles (AUVs). It is assumed that AUVs are equipped with sensors can measure position states subset from within being tracked. A new model based on provably stable Markov Process Matrices shown as viable representing aggregations. Then, multi-stage state estimation architecture Particle Filters presented estimate...
Abstract Characterizations of sharks-microbe systems in wild environments have outlined patterns species-specific microbiomes; however, whether captivity affects these trends has yet to be determined. We used high-throughput shotgun sequencing assess the epidermal microbiome belonging leopard sharks ( Triakis semifasciata ) captive (Birch Aquarium, La Jolla California born and held permanently captivity), semi-captive (held for <1 year duration scheduled release; Scripps Institute...
Abstract Background: The epidermis of Chondrichthyan fishes consists dermal denticles with production minimal but protein rich mucus that influence the attachment and biofilm development microbes, facilitating a unique epidermal microbiome. Here, we use metagenomics to provide taxonomic functional characterization microbiome Triakis semifasciata (leopard shark) across three time-points identify links between microbial groups host metabolism. Our aims include 1) describing variation taxa over...
Researchers have unpacked the ways in which students participate democracy through voting and other forms of civic engagement. However, very little empirical work has delved into how develop socially progressive values, despite their unprecedented importance to young people during years higher education. Rooted a rich historical context campus demonstration spanning past 75 current events United States, this inspection college students’ social progressivism was grounded by Pascarella’s model...
Abstract Background: The epidermis of Chondrichthyan fishes consists dermal denticles with production minimal but protein rich mucus that influence the attachment and biofilm development microbes, facilitating a unique epidermal microbiome. Here, we use metagenomics to provide taxonomic functional characterization microbiome Triakis semifasciata (leopard shark) across three time-points identify links between microbial groups host metabolism. Our aims include 1) describing variation taxa over...
The fisheries history of the Giant Sea Bass, Stereolepis gigas (Telostei: Polyprionidae), is closely linked to its spatial ecology. Its overharvest directly associated with formation spatially distinct spawning aggregations during summer, while subsequent recovery hypothesized be result explicit gear restrictions. Understanding ecology Bass a key part efforts assess contemporary threats such as commercial harvest and incidental catch by recreational fisheries. In this study, we used acoustic...