Browsing Marine Science by Date Published
Now showing items 1-20 of 171
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Habitat use of the bottlenose dolphins (Tursiops truncatus) of Fiordland: Where, why and the implications for management
Understanding the distribution of a species gives important clues about its ecology, and can provide key information and guidance for conservation management. The bottlenose dolphins (Tursiops truncatus) of Fiordland, New ... -
Aspects of Reproduction in a Post-Bonamia exitiosa Epidemic Ostrea chilensis Fishery, Foveaux Strait, Southern New Zealand
The flat oyster, Ostrea chilensis, is an important cultural and commercial species in New Zealand fishing and aquaculture industries. However, natural populations and commercial operations are threatened by haplosporidian ... -
Effects of ocean acidification on the larval settlement and metamorphosis of marine invertebrates
Future Ocean acidification (OA) has the potential to negatively affect marine ecosystems and the organisms they support, with the early life-history stages particularly sensitive to reduced seawater pH and carbonate ... -
The influence of bivalve size on ecosystem functioning in intertidal estuaries with multiple stressors
Estuarine ecosystems, as critical transition zones between land, freshwater and the sea, are hotspots for biogeochemical cycling and productivity. Most of the biogeochemical processes occur in estuarine sediments where ... -
Investigating Rāhui as a Customary Fisheries Management Tool
Marine fisheries resources sustain the social and cultural wellbeing of communities. Almost one third of the world’s fisheries are overfished. The decline or collapse of a fishery not only has significant biological effects ... -
Regional differences driving organic matter and trace metal signatures reflected in temperate reef bivalve communities on the South Island, New Zealand.
Increases in anthropogenic activity along coastal zones has led to an influx of terrestrial particulate matter containing high levels of nutrients and contaminants to coastal ecosystems. In order to manage these detrimental ... -
Aerial photogrammetry and size structure analysis of sperm whales (Physeter macrocephalus) at Kaikōura, New Zealand
Length measurement is a fundamental metric in the study of animals, and an important challenge in cetacean science. Whales are among the most difficult animals to measure alive, and a variety of techniques have been applied ... -
Tidal energy theory and turbine array design in constricted channels
This thesis extends existing tidal energy theory to include the effects of channel constriction - previous general theoretical works have been limited to unconstricted rectangular channel geometries. This work uses a ... -
The response of estuarine bivalve Austrovenus stutchburyi to hypoxic multiple-stressor environments
Eutrophication-induced hypoxia is amongst the most widespread anthropogenically deleterious environmental issue occurring globally in coastal marine environments. Along with habitat loss, overfishing and harmful algal ... -
Trophic structure through the history of exploitation in New Zealand fish communities
Marine ecosystems have been under a considerable amount of stress due to human activities, especially after industrialization. The abundance and ecological interactions of exploited fishes are influenced by fishing ... -
Meta-ecosystem approach to ecotones. Methods and applications
Ecotones are landscape features that intervene between adjoining ecosystems. They have attracted attention for their potential role in regulating the exchanges between communities, and thus their potential influence on ... -
Size, Shape, Scope and Strength of skeletons, Evechinus chloroticus, New Zealand
Ocean acidification will affect calcifying organisms as calcium carbonate saturation levels decrease due to climate change. Echinoids are important components of the coastal ecosystem and use magnesium in their skeletal ... -
Transgenerational plasticity and acclimation of tropical sea urchins to ocean warming and acidification
Anthropogenic CO2 emissions are causing the oceans to simultaneously warm and become increasingly acidic, with rates of change that are putting evolutionary pressure on many marine organisms. As a result, both short-term ... -
Tracking flow and fate of organic matter and contaminants within native food webs surrounding finfish aquaculture
The development of aquaculture to provide a source of protein has the potential to alleviate pressure on wild fish stocks, allowing marine systems to regenerate while providing livelihood to millions of people. Given the ... -
A Last Glacial Maximum to Present Paleoenvironmental Investigation of Port Pegasus, Stewart Island, New Zealand
Almost all modern-day estuaries evolved during the Holocene and contain sedimentary sequences that preserve the evolution of these coastal environments. Incised-valley fill sequences in estuaries often contain facies that ... -
Using photo-ID data to investigate population parameters and social structure of sperm whales visiting Kaikōura
In order to effectively manage and protect populations, it is crucial that long-term trends in abundance and population structure are understood. Kaikōura is one of the few places worldwide where sperm whales can be found ... -
The relative importance of pelagic and benthic primary production for Austrovenus stutchburyi in Blueskin Bay in the South Island, New Zealand
Bivalves are commercially and ecologically important in estuarine ecosystem. Austrovenus stutchburyi is a dominant bivalve species in the Blueskin Bay inlet, New Zealand, and has been considered as culturally, commercially ... -
Foraging ecology of sperm whales at Kaikōura
The submarine canyon of Kaikōura, New Zealand, is a foraging ground for male sperm whales (Physeter macrocephalus). The abundance of whales feeding in this area during summer has almost halved over the last three decades, ... -
Drivers of temperate reef fish community structure and food web architecture
An understanding of the drivers that influence community structure and functioning is essential to predict and manage the impacts of human induced stressors on the marine environment. The current thesis aimed to resolve ... -
The ecology and conservation of hotspots for Hector’s dolphin
Many species of marine top-predator have ‘hotspots’ in their distribution. Hotspots can be defined as areas within the distribution of a population that are used disproportionately more than other locations. Usually ...