A5068183663- Ichthyology and Marine Biology
- Fish Ecology and Management Studies
- Marine animal studies overview
- Marine and fisheries research
- Identification and Quantification in Food
- Isotope Analysis in Ecology
- Environmental DNA in Biodiversity Studies
- Genomics and Chromatin Dynamics
- Fungal and yeast genetics research
- Fish biology, ecology, and behavior
- Marine Toxins and Detection Methods
- American Environmental and Regional History
- Conservation Techniques and Studies
- Structural Engineering and Vibration Analysis
- Neuroscience of respiration and sleep
- Avian ecology and behavior
- Coral and Marine Ecosystems Studies
- Chromosomal and Genetic Variations
- Agricultural Economics and Policy
- Urbanization and City Planning
- Turtle Biology and Conservation
- RNA and protein synthesis mechanisms
- Marine and coastal ecosystems
- Transport and Economic Policies
- Tree-ring climate responses
Flinders University
2017-2025
Florida Aquarium
2020-2024
Johns Hopkins University
2018-2022
Syracuse University
2022
Florida State University
2022
Southern Shark Industry Alliance
2021
Oral Roberts University
2020
University of Mary Washington
2017
CSIRO Oceans and Atmosphere
2017
James Cook University
2014-2016
Context Our understanding of population- and ecosystem-level processes commonly considers conspecific individuals to be ecologically equivalent. However, the same species may use resources differently, supporting prevalence individual specialisation or ‘apparent specialisation’. Individuals within a geographically defined population also exhibit complex subpopulation movements, whereby show philopatry specific regions that further drives variation. Aims White sharks (Carcharodon carcharias)...
White sharks, Carcharodon carcharias, are often described as elusive, with little information available due to the logistical difficulties of studying large marine predators that make long-distance migrations across ocean basins. Increased understanding aggregation patterns, combined recent advances in technology have, however, facilitated a new breadth studies revealing fresh insights into biology and ecology white sharks. Although we may no longer be able refer shark little-known, elusive...
Abstract The use of fatty acid (FA) tracers is a growing tool in trophic ecology, yet FA profiles are driven by number abiotic and biotic parameters, making interpretation appropriate confusing for ecologists. We undertook global analysis, compiling 106 chondrichthyan (shark, ray chimaera) populations, as model to test the utility partition priori guilds, phylogeny, water temperature habitats. Individual FAs characterizing these four factors were identified, promoting ecological across taxa....
We designed and synthesized synI, which is ∼21.6% shorter than native chrI, the smallest chromosome in Saccharomyces cerevisiae. SynI was for attachment to another synthetic due concerns surrounding potential instability karyotype imbalance now attached synIII, yielding first yeast fusion chromosome. Additional chromosomes were constructed study nuclear function. ChrIII-I chrIX-III-I have twisted structures, depend on silencing protein Sir3. As a smaller chromosome, chrI also faces special...
The number of shark-human interactions and shark bites per capita has been increasing since the 1980s, leading to a rise in measures developed mitigate risk bites. Yet many products commercially available for personal protection have not scientifically tested, potentially providing an exaggerated sense security people using them. We tested five deterrents surfers (Shark Shield Pty Ltd [Ocean Guardian] Freedom+ Surf, Rpela, SharkBanz bracelet, surf leash, Chillax Wax) by comparing percentage...
Wildlife tourism is one of the fastest-growing sectors industry, where feeding animals often applied to increase probability up-close encounters. However, directly wildlife can cause behavioural, ecological, and physiological changes in target species. In Oslob, Philippines, whale shark (Rhincodon typus) involves sharks a total 150–400 kg sergestid shrimp daily throughout interaction period from 06:00 10:00 small outrigger boats while tourists observe sharks. We deployed tri-axial...
ABSTRACT Killer whales ( Orcinus orca ) have been documented to prey on white sharks Carcharodon carcharias ), in some cases causing localised shark displacement and triggering ecological cascades. Notably, a series of such predation events reported from South Africa over the last decade, with killer specifically targeting sharks' liver. However, observations these interactions are rare, knowledge their frequency across world's oceans remains limited. In October 2023, 4.7 m (total length)...
Stable isotope analysis has become a widely used biogeochemical tool owing to its capacity reveal predator foraging habitats, trophic level, and prey preferences. The breadth of applicable tissue types is quickly growing across taxa, including for elasmobranchs, with tooth isotopes gaining traction trace within-individual variation in ecology. Jaws museums private collections present unique opportunity access samples from rare or protected species size classes. However, most these jaws are...
The Cookiecutter shark (Isistius brasiliensis) is an ectoparasitic, mesopelagic that known for removing plugs of tissue from larger prey, including teleosts, chondrichthyans, cephalopods, and marine mammals. Although this species widely distributed throughout the world's tropical subtropical oceanic waters, like many deep-water species, it remains very poorly understood due to its distribution. We used a suite biochemical tracers, stable isotope analysis (SIA), fatty acid (FAA),...
Lipid and fatty acid (FA) analysis is commonly used to describe the trophic ecology of an increasing number taxa. However, applicability these analyses contingent upon collection storage sufficient high quality tissue, limitations which are previously unexplored in elasmobranchs. Using samples from 110 white sharks, Carcharodon carcharias, collected throughout Australia, we investigated importance tissue type, sample quantity, for reliable lipid class FA analysis. We determined that muscle...
Visual estimates have been used extensively to determine the length of large organisms that are logistically challenging measure. However, there has little effort quantify accuracy or validity this technique despite inaccurate size leading incorrect population assessments and misinformed management strategies. Here, we compared visually estimated total measurements white sharks,
ABSTRACT Wildlife tourism is growing in popularity, diversity of target species, and type tours. This presents difficulties for management policy that must balance the complex trade‐offs between conservation, animal welfare, pragmatic concerns tourist satisfaction economic value. Here, we provide a widely applicable, multidisciplinary framework to assess impacts wildlife focusing on industry tractability, socioeconomic values, their effects ecosystem impacts. The accommodates quantifies...
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 40:297-308 (2019) - DOI: https://doi.org/10.3354/esr00997 Effects of short-term capture on physiology white sharks Carcharodon carcharias: amino acids and fatty Austin J. Gallagher1,*, Lauren Meyer2, Heidi R. Pethybridge3, Charlie Huveneers2, Paul A. Butcher4 1Beneath Waves, PO Box 126, Herndon, VA 20172, USA 2Southern...
Wildlife tourism uses various stimuli to attract species and facilitate close encounters. Such activities are often referred as provisioning, however the term is used interchangeably, sometimes erroneously, with attracting, feeding, luring, chumming, all of which lack consistent definitions. Here, we review current use provisioning-associated terminology in marine bird, teleost (bony fish), mammal, reptile, ray shark tourism, within scientific literature on operator webpages. We then propose...
Wildlife tourism is expanding globally, driving the need to quantify its potential impacts. Studies on effects of marine wildlife have focused documenting behavioural changes, but whether affects activity levels, energy budgets and ultimately survival prospects target animals largely unknown. To assess cage diving expenditure white sharks, Carcharodon carcharias, animal-borne cameras accelerometer loggers were deployed 18 sharks at a cage-diving site (Neptune Islands Group Marine Park, South...
White sharks ( Carcharodon carcharias ) play a crucial ecological role, shaping ecosystems through direct predation and risk effects. On the east coast of Australia, immature white are broadly distributed, inhabiting wide range habitats from temperate Tasmania to tropical North Queensland. Using stable isotopes fatty acids muscle plasma, we examined diet habitat use 136 (152–388 cm total length) captured on SMART drumlines East Australian coast. This facilitated temporal assessment shark...