Browsing by Supervisor "Pilditch, Conrad A."
Now showing items 21-39 of 39
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Investigating groundwater derived nutrient fluxes within Tauranga harbour, New Zealand
(The University of Waikato, 2021)Submarine groundwater discharge (SGD) is one of the key pathways that connects land and ocean, delivering freshwater, nutrients, carbon, metals, and other chemical constituents to coastal waters. In New Zealand, local Māori ... -
Measurements and modelling of eutrophication processes in Lake Rotoiti, New Zealand
(University of Waikato, 2010)Deterioration of water quality is a common problem for aquatic systems globally, which is accelerated by factors such as urban settlement, farming, forestry and recreation. Spatial variability of water quality in these ... -
Measuring and modelling estuarine macroalgae blooms and water column nutrients
(University of Waikato, 2016)This thesis examines the dynamics of estuarine macroalgae blooms of the genus Ulva and the environmental factors controlling them, using process-based mathematical models as well as observation data from Tauranga Harbour ... -
Nutrient dynamics in shallow tidally-dominated estuaries
(University of Waikato, 2011)Te Puna and Waikareao estuaries are shallow tidally-dominated estuaries in Tauranga Harbour located on the Bay of Plenty Coast, New Zealand. Tauranga Harbour is the site of a large commercial port surrounded by urban ... -
Production and decay of mangrove (Avicennia marina subsp. australasica) detritus and its effects on coastal benthic communities
(University of Waikato, 2012)Temperate mangrove forests have been poorly studied compared to their tropical counterparts, because they constitute just 1.4% of the global mangrove forest area. Research from tropical mangrove forests suggests they are ... -
Response and resilience of estuarine benthic ecosystems to anthropogenic pressures
(The University of Waikato, 2020)Human activities are altering coastal environments at local and global scales with largely unknown consequences. Catchment land-use changes increase the rates of delivery of fine sediments and nutrients to estuaries, ... -
Sediment Dispersion at the New Auckland Marine Disposal Ground, Northeast New Zealand
(University of Waikato, 2012)A controversial history of near shore dredged material disposal east of Auckland, New Zealand, starting in the mid-1980s, resulted in the use of a temporary deep water site that did not satisfy the requirements of the ... -
Small-scale spatial patterns of Austrovenus stutchburyi in natural and translocated beds
(The University of Waikato, 2020)Ecosystems are patterned and patchy as a result of spatial and temporal variation in the abundance and distribution of essential resources, as well as due to geological and ecological processes. Large-scale patterns are ... -
Spatial variation in functional group diversity in a sandflat benthic community: implications for ecosystem resilience
(University of Waikato, 2013)The resilience of macrobenthic communities to environmental stress depends upon the vulnerability, adaptability and connectivity of species. Recent studies suggest that the function(s) species perform may be more influential ... -
The Effects of Benthic Organisms on Intertidal Sediment Erodibility
(University of Waikato, 2015)On intertidal sandflats, the dispersal of juvenile organisms can rely on bedload transport, a critical process during small-scale disturbance recovery. The erosion of surface sediments is also vital to benthic-pelagic ... -
The effects of common carp on zooplankton communities using morphological and molecular techniques
(The University of Waikato, 2018)Understanding the factors causing a decline of water quality is important to ecologists, but particularly challenging given the complexity of natural systems. New Zealand’s freshwater ecosystems are under threat from ... -
The effects of ocean acidification on microbial nutrient cycling and productivity in coastal marine sediments
(The University of Waikato, 2022)Ocean Acidification (OA), commonly referred to as the “other CO₂ problem,” illustrates the current rise in atmospheric carbon dioxide (CO₂) levels, precipitated in large by human-related activity (e.g., fossil fuel combustion ... -
The effects of terrigenous sediment on the behaviour of Macomona liliana (Bivalvia) in permeable sediments: Implications for porewater exchange
(University of Waikato, 2013)Catastrophic sedimentation events create one off disturbances that can cause mass mortality events in receiving estuaries. In contrast, the deposition of small amounts of terrigenous sediment (TS) is on-going and likely ... -
The Effects of Turbidity on Suspension Feeding Bivalves
(The University of Waikato, 1999)This thesis aimed to describe the relationship between suspended sediment concentration stimulating the turbidity caused by natural events or human activities, and the feeding behaviour and energetics of scallops (Pecten ... -
The Fate and Effects of Contaminants in Estuarine Environments
(University of Waikato, 2017)Estuaries are sensitive environments regarding their response to anthropogenic events. The accumulation of toxic trace elements, such as Cd and Pb, has detrimental consequences on benthic community composition and function ... -
The impact of macrophyte mats on biodiversity and ecosystem functioning of benthic communities
(The University of Waikato, 2018)Macroalgal blooms, such as Ulva spp., are a common disturbance to estuarine benthic fauna worldwide. As large quantities of macroalgae break free from growing substrates, drifting mats are formed that eventually deposit ... -
The influence of interacting stressors on soft sediment ecosystem function
(The University of Waikato, 2021)Soft sediment intertidal habitats provide valuable ecosystem services to millions of people worldwide yet are under intense anthropogenic pressure. In particular, the intensification of land derived sediment and nutrient ... -
Transport and retention of benthic marine invertebrates in the Southern Tauranga Basin
(The University of Waikato, 2018)Dispersal is the process in which individuals are transferred between populations, and is essential for population sustainability and longevity. In estuarine soft sediment communities, dispersal often occurs as the interaction ... -
Variation in benthic primary production during tidal emersion within different intertidal habitats
(The University of Waikato, 2019)Intertidal habitats provide a wealth of ecosystem services including fuelling oceanic food webs and processing nutrients however, understanding the response of these habitats to emersion has been largely overlooked. ...
