C. Hewitt results 92
· Newest (Page 1/4, per page 25)
Author: C. Hewitt ×Clear All Filters
Search Results
Anaesthetic performance of AQUI-S and 2-phenoxyethanol in fish for field applicationsNARA Subscribed
Ethical handling of fish in ecological research requires anaesthetic methods that are effective, practical, and adaptable for a diversity of field conditions. Estuarine environments, in particular, present challenges due to their fluctuating water chemistry. To improve our understanding of anaesthetic performance for field conditions, we compared AQUI-S, a commonly used clove oil-based anaesthetic, and 2-phenoxyethanol, a cost...
The ocean plays an essential role in regulating Earth’s climate, influencing weather conditions, providing sustenance for large populations, moderating anthropogenic climate change, encompassing massive biodiversity, and sustaining the global economy. Human activities are changing the oceans, stressing ocean health, threatening the critical services the ocean provides to society, with significant consequences for human well-be...
Graphical Discrimination of New Zealand Honey from International Honey Using Elemental AnalysisNARA Subscribed
This study investigated the potential of utilising the elemental fingerprinting of honey to differentiate New Zealand (NZ) honey from that of international origin. Twenty elements were analysed by ICP-MS in 352 honeys from 34 various countries. Of these, 323 honeys (245 New Zealand honeys, 78 international) and two subsets of data (NZ and European origin, n = 306, and, NZ and Denmark/Germany, n = 280) were visualised using pri...
Root aphid (Aploneura lentisci) population size on perennial ryegrass is determined by drought and endophyte strainNARA Subscribed
Climate change is anticipated to lead to an increase in the occurrence and intensity of drought and fluctuations in insect cycles that will challenge modern pasture systems. Feeding by root aphids such as Aploneura lentisci Pass. can be a significant challenge to pastures. These below-ground living aphids are commonly found in New Zealand and Australia, feeding year-round on the roots of graminaceous plants such as perennial r...
Seasonal gain in body condition of foraging humpback whales along the Western Antarctic PeninsulaOA Marine
Most baleen whales are capital breeders that use stored energy acquired on foraging grounds to finance the costs of migration and reproduction on breeding grounds. Body condition reflects past foraging success and can act as a proxy for individual fitness. Hence, monitoring the seasonal gain in body condition of baleen whales while on the foraging grounds can inform how marine mammals support the costs of migration, growth, an...
The physical and chemical changes that accompany permafrost thaw directly influence the microbial communities that mediate the decomposition of formerly frozen organic matter, leading to uncertainty in permafrost–climate feedbacks. Although changes to microbial metabolism and community structure are documented following thaw, the generality of post‐thaw assembly patterns across permafrost soils of the world remains uncertain,...
Barriers to coastal planning and policy use of environmental research in Aotearoa-New ZealandOA Marine
Identifying barriers to the effective use of science in coastal management of Aotearoa-New Zealand is easy, due to the present lack of complicated governance and management structures, coupled with an emphasis on funding science that includes pathways to implementation. This opinion piece discusses four areas that still hinder effective use of science, all of which are likely to be problematic for other countries. We initially...