Browsing Marine Science by Date Published
Now showing items 1-20 of 156
-
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 ... -
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 ... -
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 ... -
Physical processes in a time-dependent salt wedge estuary with a region of repeated sharp curvature
This thesis presents a comprehensive study of physical processes in the Taieri River of the South Island, New Zealand, a poorly studied time-dependent salt wedge estuary with a region of repeated sharp curvature. A series ... -
Heterotrophic Bacterial Biofilms of Macroalgae
Macroalgae form a diverse and ubiquitous group of photosynthetic organisms that play a key role in the structuring and function of marine communities. Through the fixation of carbon, macroalgae contribute a sizeable ... -
Population biology, expansion and harvestability of the invasive Undaria pinnatifida in southern New Zealand
In the marine environment, 84% of eco-regions have been subject to biological invasions. These invasions can be ecologically costly through displacing native species, shifting community structure, altering food webs, and ... -
Effects of coralline algal diffusion boundary layers on growth of newly settled sea urchins: implications for ocean acidification conditions
Macroalgae are able to modify their local environment via biological processes, thereby creating a diffusive boundary layer (DBL) where the chemical and physical environment differs from the overlying bulk seawater. In ... -
Growth, development, and aging methods of the midget octopus, Octopus huttoni
This is the first study to be completed on the growth, developmental rates, and aging methods in the midget octopus, Octopus huttoni. Understanding life histories and population dynamics are important for fisheries management. ... -
Assessing citizen science in the marine environment
Citizen science, where the general public is engaged with and participates in a scientific project, is increasingly being recognised as an effective tool for science education, developing knowledge and science skills, ... -
The ecophysiology of coralline algae in southern New Zealand
Coralline algae (Rhodophyta) are an important indicator of global environmental change in coastal ecosystem due to their global distribution and sensitivity to changing ocean climate. In temperate latitudes, coralline algae ... -
Population demographics of sevengill sharks (Notorynchus cepedianus) in Paterson Inlet, Stewart Island.
The broadnose sevengill shark (Notorynchus cepedianus) is an abundant large marine predator found around coastal New Zealand. Data on the ecology of the species are severely limited and anthropogenic impacts are unquantified. ...