A5063877129- Physiological and biochemical adaptations
- Ocean Acidification Effects and Responses
- Aquaculture Nutrition and Growth
- Fish Ecology and Management Studies
- Fish biology, ecology, and behavior
- Coral and Marine Ecosystems Studies
- Remote Sensing and LiDAR Applications
- Bat Biology and Ecology Studies
- Systemic Lupus Erythematosus Research
- Retinal and Optic Conditions
- Fish Biology and Ecology Studies
- High Altitude and Hypoxia
- Avian ecology and behavior
- Drug-Induced Ocular Toxicity
- Water Quality Monitoring Technologies
- Amphibian and Reptile Biology
- Animal Behavior and Reproduction
Antarctica New Zealand
2025
University of Canterbury
2007-2017
Plant & Food Research
2011-2017
University of Glasgow
2005
Abstract Monitoring of sentinel species provides insight into the ecosystems in which they live. In Southern Ocean, penguins are one such indicator species, where only a limited number colonies have been monitored extensively for decades around Antarctica. As Ocean warms and commercial fishing continues, need expansion population monitoring has become paramount. Using Adélie ( Pygoscelis adeliae ) as model we reviewed methods to estimate colony size including ground aerial (occupied...
The Antarctic notothenioid Pagothenia borchgrevinki was collected from the stenothermal waters of McMurdo Sound in summers 2004, 2005 and 2006. Acclimation ability at 4° C tested healthy P. individuals infected with x‐cell gill disease. All fish successfully acclimated to C, establishing compensatory changes resting oxygen consumption rate ( R rest ) critical swimming speed U crit during a 1 month acclimation period, which were maintained longer, 6 period. In contrast, disease unable...
Abstract Previous work has shown that male Mannophryne trinitatis (Dendrobatidae) carry their larvae on backs for up to 4 days in search of a predator‐free pool which deposit them. The experiments reported here investigated whether costs the or adults limit transport duration. We simulated durations 0, 4, 8, and 12 larvae, but found no deterioration terms ability grow metamorphosis; indeed, 12‐day grew better than all others. After 8 transport, had used yolk reserves begun lose dry weight....
8 Chapter One Introduction 9 Two General experimental methods 36 Three The effect of warm acclimation on the 43 oxygen consumption Pagothenia
Visual acuity of the commercially important sparid Pagrus auratus was tested using optomotor response. Juvenile fish were categorized by size as group 1 (50 g), 2 (100 3 (150 4 (300 5 (500 g) and 6 (800 g). Group demonstrated excellent visual (minimum separable angle, M(SA), 1°), which improved compared with smaller groups (groups 2, 2°). In larger groups, however, a reduction in observed 4, 4°). displayed positive responses long wavelength light (red) but reduced short wavelengths (blue)....
The sensory physiology and behaviour of many fish species are strongly affected by light. This short study demonstrates that in the Australasian snapper (Chrysophrys auratus) absolute light intensity governs visual acuity also guides preference behaviour, with choosing to ‘rest where they see best’. Use optomotor response test at four intensities (0.01, 0.05, 1 3 μmol s−1 m2), showed (measured as directional bias) was best a 0.05 m2 (84.9% bias), but weakened highest lowest (41.1 35.3%)....