A5000275661- Ichthyology and Marine Biology
- Marine and fisheries research
- Fish Ecology and Management Studies
- Marine animal studies overview
- Coral and Marine Ecosystems Studies
- Fish Biology and Ecology Studies
- Fish biology, ecology, and behavior
- Physiological and biochemical adaptations
- Environmental DNA in Biodiversity Studies
- Marine Bivalve and Aquaculture Studies
- Animal Behavior and Reproduction
- Cardiac Imaging and Diagnostics
- Animal Vocal Communication and Behavior
- Identification and Quantification in Food
- Turtle Biology and Conservation
- Species Distribution and Climate Change
- Aquaculture Nutrition and Growth
- Water Quality Monitoring Technologies
- Marine Ecology and Invasive Species
- Neurobiology and Insect Physiology Research
- Underwater Acoustics Research
- Isotope Analysis in Ecology
- Coronary Interventions and Diagnostics
- Coastal and Marine Management
- Marine and coastal plant biology
University of Hawaiʻi at Mānoa
2015-2024
University of Hawaii System
2011-2023
University of Hawaii–West Oahu
2022
Fisheries and Oceans Canada
2017
Technical University of Denmark
2017
Carleton University
2017
Indiana University
1997
Monell Chemical Senses Center
1980-1981
University of Pennsylvania
1980
Abstract The use of fish aggregating devices ( FAD s) by purse seine fisheries has come under increasing criticism for its potential deleterious impacts on tuna stocks, high levels by‐catch and threats to the biodiversity tropical pelagic ecosystems. Here, we review current state scientific knowledge this fishing technique management strategies. Our intent is encourage objective discussion topic highlight areas worthy future research. We show that catching juvenile around s does not...
Knowledge of the three-dimensional movement patterns elasmobranchs is vital to understand their ecological roles and exposure anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses knowledge gap vertical movements by compiling first synthesis habitat use from data obtained deployment 989 biotelemetry tags 38 elasmobranch species. Elasmobranchs displayed high intra- interspecific variability in...
Animals are often faced with complex movement decisions, particularly those that involve long-distance dispersal. Partial migrations, ubiquitous among all groups of vertebrates, a form occurs when only some the animals in population migrate. The decision to migrate or be resident can dependent on many factors, but these factors rarely quantified fishes, top predators, even though partial migrations may have important implications for ecosystem dynamics and conservation. We utilized passive...
Background The scalloped hammerhead shark, Sphyrna lewini, is a large endangered predator with circumglobal distribution, observed in the open ocean but linked ontogenetically to coastal embayments for parturition and juvenile development. A previous survey of maternal (mtDNA) markers demonstrated strong genetic partitioning overall (global ΦST = 0.749) significant population separations across oceans between discontinuous continental coastlines. Methodology/Principal Findings We surveyed...
Electronic tags are significantly improving our understanding of aquatic animal behavior and emerging as key sources information for conservation management practices. Future integrative biology ecology studies will increasingly rely on data from electronic tagging. Continued advances in tracking hardware software needed to provide the knowledge required by managers policymakers address challenges posed world's changing ecosystems. We foresee multiplatform systems simultaneously monitoring...
Abstract Bio‐logging data obtained by tagging animals are key to addressing global conservation challenges. However, the many thousands of existing bio‐logging datasets not easily discoverable, universally comparable, nor readily accessible through repositories and across platforms, slowing down ecological research effective management. A set universal standards is needed ensure discoverability, interoperability translation into management recommendations. We propose a standardisation...
SUMMARY The unique head morphology of sphyrnid sharks might have evolved to enhance electrosensory capabilities. `enhanced electroreception' hypothesis was tested by comparing the behavioral responses similarly sized carcharhinid and prey-simulating electric stimuli. Juvenile scalloped hammerhead Sphyrna lewini sandbar Carcharhinus plumbeus oriented dipole fields from same maximum distance (approximately 30 cm) thus demonstrated comparable behavioral-response thresholds (<1 nV cm-1)....
1. Animal search patterns reflect sensory perception ranges combined with memory and knowledge of the surrounding environment. 2. Random walks are used when locations resources unknown, whereas directed should be optimal location favourable habitats is known. However, have been quantified for very few species. 3. We re-analysed tracking data from three shark species to determine whether they were using walks, if so, over which spatial scales. Fractal analysis was quantify how movement...
Marine animals equipped with biological and physical electronic sensors have produced long-term data streams on key marine environmental variables, hydrography, animal behavior ecology. These are an essential component of the Global Ocean Observing System (GOOS). The Animal Borne Sensors (AniBOS) network aims to coordinate collection delivery streams, providing a complementary capability other GOOS networks that monitor Essential Variables (EOVs), climate variables (ECVs) biodiversity...
Fish moving between different thermal environments experience heat exchange via conduction through the body wall and convection from blood flow across gills. We report a strategy of preventing convective loss at gills during excursions into deep, cold water by tropical scalloped hammerhead shark (Sphryna lewini). Adult sharks dive rapidly repeatedly warm (~26°C) surface waters to depths exceeding 800 meters with temperatures as low 5°C. Biologgers attached adult show that muscle were...
We used behavioural conditioning to demonstrate that sharks can detect changes in the geomagnetic field. Captive were conditioned by pairing activation of an artificial magnetic field with presentation food over a target. Conditioned subsequently converged on target when was activated but no reward presented thereby demonstrating they able sense altered This strong response provides robust assay could be determine how fields and measure detection thresholds.