A5078717654- Coral and Marine Ecosystems Studies
- Ocean Acidification Effects and Responses
- Marine and fisheries research
- Fish Ecology and Management Studies
- Physiological and biochemical adaptations
- Microplastics and Plastic Pollution
- Animal Behavior and Reproduction
- Marine animal studies overview
- Marine Bivalve and Aquaculture Studies
- Marine Biology and Environmental Chemistry
- Ichthyology and Marine Biology
- Hemispheric Asymmetry in Neuroscience
- Recycling and Waste Management Techniques
- Aquaculture Nutrition and Growth
- Amphibian and Reptile Biology
- Parasite Biology and Host Interactions
- Wildlife Ecology and Conservation
- Marine and coastal plant biology
- Animal Vocal Communication and Behavior
- Species Distribution and Climate Change
- Marine Ecology and Invasive Species
- Geological and Geophysical Studies
- Zebrafish Biomedical Research Applications
- Fish biology, ecology, and behavior
- Paleontology and Evolutionary Biology
University of Otago
2018-2025
Norwegian Institute of Marine Research
2017-2023
ARC Centre of Excellence for Coral Reef Studies
2014-2020
James Cook University
2011-2020
Australian Research Council
2018-2020
Elevated carbon dioxide (CO(2)) has recently been shown to affect chemosensory and auditory behaviour, activity levels of larval reef fishes, increasing their risk predation. However, the mechanisms underlying these changes are unknown. Behavioural lateralization is an expression brain functional asymmetries, thus provides a unique test hypothesis that elevated CO(2) affects function in fishes. We tested effect near-future concentrations (880 µatm) on behavioural fish, Neopomacentrus...
Recent studies demonstrate that the elevated temperatures predicted to occur by end of century can affect physiological performance and behaviour larval juvenile fishes; however, little is known effect these on ecological processes, such as predator–prey interactions. Here, we show exposure significantly affected interactions a pair common reef fish, planktivorous damselfish ( Pomacentrus wardi ) piscivorous dottyback Pseudochromis fuscus ). When predators exposed interacted with prey in...
Rising CO2 levels in the oceans are predicted to have serious consequences for many marine taxa. Recent studies suggest that non-genetic parental effects may reduce impact of high on growth, survival and routine metabolic rate fishes, but whether environment mitigates behavioural sensory impairment associated with remains unknown. Here, we tested acute elevated escape responses juvenile fish such were altered by exposure parents increased (transgenerational acclimation). Elevated negatively...
Recent research has shown that exposure to elevated carbon dioxide (CO2) affects how fishes perceive their environment, affecting behavioral and cognitive processes leading increased prey mortality. However, it is unclear if mortality results from changes in the dynamics of predator-prey interactions or due increasing activity levels. Here we demonstrate ocean pCO2 projected occur by 2100 significantly effects a pair common reef fish: planktivorous damselfish Pomacentrus amboinensis...
Molecular responses of fishes to a heatwave are species specific and do not concur with measures oxygen uptake in captivity.
Ocean warming and acidification are set to reshuffle life on Earth alter ecological processes that underpin the biodiversity, health, productivity, resilience of ecosystems. Fishes contribute significantly marine, estuarine, freshwater species diversity functioning marine ecosystems, not immune climate change impacts. Whilst considerable effort has been placed studying effects fishes, much emphasis their (eco)physiology at organismal level. affected by through impacts various levels...
Ocean warming and acidification are serious threats to marine life. While each stressor alone has been studied in detail, their combined effects on the outcome of ecological interactions poorly understood. We measured predation rates predator selectivity two closely related species damselfish exposed a predatory dottyback. found temperature CO2 interacted synergistically overall rate, but antagonistically selectivity. Notably, elevated or reversed selectivity, interaction between stressors...
Climate change can have a pronounced impact on the physiology and behaviour of fishes. Notably, many climate stressors, such as global warming, hypoxia ocean acidification (OA), been shown to alter kinematics predator-prey interactions in fishes, with potential effects at ecological levels. Here, we review main each these stressors fish escape responses using an integrative approach that encompasses behavioural kinematic variables. Elevated temperature was affect components response,...
Abstract Ocean warming and acidification are serious threats to marine life; however, their individual combined effects on large pelagic predatory fishes poorly understood. We determined the of projected future temperature carbon dioxide ( CO 2 ) levels survival, growth, morphological development swimming performance early life stages a circumglobal fish, yellowtail kingfish Seriola lalandi . Eggs, larvae juveniles were reared in cross‐factored treatments (21 25°C) p (500 985 μatm) from...
Human noise pollution has increased markedly since the start of industrialization and there is international concern about how this may impact wildlife. Here we determined whether real motorboat affected behavior, space use escape response a juvenile damselfish (Pomacentrus wardi) in wild, explored fish respond effectively to chemical visual threats presence two common types noise. Noise from 30 hp 2-stroke outboard motors reduced boldness activity on habitat patches compared ambient...
Coral reefs are degrading globally due to increased environmental stressors including warming and elevated levels of pollutants. These affect not only habitat-forming organisms, such as corals, but they may also directly the organisms that inhabit these ecosystems. Here, we explore how dual threat habitat degradation microplastic exposure behaviour survival coral reef fish in field. Fish were caught prior settlement pulse-fed polystyrene microplastics six times over 4 days, then placed field...
Microorganisms quickly colonise microplastics entering the ocean, forming a biofilm that, if ingested, is consumed with microplastics. Past research often neglects to expose fish biofouled microplastics, opting only for clean despite low likelihood that will encounter Here, we investigate physiological impacts of polyethylene microplastic (300–335 μm) exposure in juvenile fish. Intermittent flow respirometry, antioxidant enzyme activity, and lipid peroxidation were investigated after exposed...
Recent studies have shown that elevated CO2 can affect the behaviour of larval and juvenile fishes. In particular, behavioural lateralization, an expression brain functional asymmetries, is affected by in both coral reef temperate However, potentially interacting effects rising temperatures on lateralization are unknown. Here, we tested combined effect near-future elevated-CO2 concentrations (930 µatm) temperature variation a marine damselfish, Pomacentrus wardi. Individuals exposed to one...
Many vertebrates are known to show behavioural lateralization, whereby they differentially use one side of their body or either bilateral organs limbs. Behavioural lateralization often manifests in a turning bias fishes, with some individuals showing left and others right bias. Such biases could be the source considerable conflict fish schools given that there may social pressure conform group maintain effective evasion. Here, we predation is major determinant degree both relative absolute...
Abstract An increasing number of studies have examined the effects elevated carbon dioxide (CO2) and ocean acidification on marine fish, yet little is known about large pelagic fish. We tested CO2 early life history development behaviour yellowtail kingfish, Seriola lalandi. Eggs larvae were reared in current day control (450 µatm) two treatments for a total 6 d, from 12 h post-fertilization until 3 d post-hatching (dph). Elevated matched projections open by year 2100 under RCP 8.5 (880 µatm...
Abstract Mortality through predation is often selective, particularly at life‐history bottlenecks. While many studies have looked the importance for survival of specific prey characteristics in isolation, few a broad array attributes and how they relate to realistic context. Our study measures 18 morphological, performance behavioural traits juvenile damselfish that been hypothesized as important survival, examines field immediately after settlement. These included size, relative false...
Ocean acidification and warming, driven by anthropogenic CO 2 emissions, are considered to be among the greatest threats facing marine organisms. While each stressor in isolation has been studied extensively, there less focus on their combined effects, which could impact key ecological processes. We tested independent effects of short-term exposure elevated temperature predator–prey interactions a common pair coral reef fishes ( Pomacentrus wardi its predator, Pseudochromis fuscus ). found...
Abstract The reproductive success of marine ectotherms is especially vulnerable in warming oceans due to alterations adult physiology, as well embryonic and larval survival prospects. These vital responses may, however, differ considerably across the species' geographical distribution. Here we investigated life history, focusing on ecology, three spatially distant populations (stocks) Atlantic cod ( Gadus morhua , Gadidae) (50–80° N), Irish/Celtic Seas‐English Channel Complex, North Barents...
Abstract Prey individuals with complex life-histories often cannot predict the type of risk environment to which they will be exposed at each their life stages. Because level investment in defences should match local conditions, we that these have ability modulate expression an integrated defensive phenotype, but this switch occur key life-history transitions. We manipulated background juvenile damselfish for four days following settlement (a transition) or 10 post-settlement and measured a...
Summary Behavioural lateralization – the preferential use of one side body or either bilateral organs limbs has been well documented in many species, a number contexts. While benefits reported are numerous, existing latent variability degree within and across populations, species taxa indicates that costs may modulate its expression. Few studies have changes at individual level, response to long‐term environmental conditions, but not short‐term conditions. Predation is highly variable both...
Abstract Habitat degradation not only disrupts habitat‐forming species, but alters the sensory landscape within which most species must balance behavioural activities against predation risk. Rapidly developing a cautious phenotype, condition known as neophobia, is advantageous when entering novel risky habitat. Many aquatic organisms rely on damage‐released conspecific cues (i.e. alarm cues) an indicator of impending danger and use them to assess general risk develop neophobia. This study...
Evidence suggests that petroleum-derived polymers can impact marine organisms however, little is understood about whether biopolymers affect the behaviour and physiology of teleost fish. The aim this research was to examine potential effects microplastics from a polymer, (polyethylene, PE), biopolymer, (edible food coating EFC) on escape performance, routine swimming, aerobic metabolism Forsterygion capito (the mottled triplefin). PE exposure negatively affected fish through longer latencies...