OAR@UM Community:
/library/oar/handle/123456789/11476
2026-05-25T11:26:57ZInteractions between wild fauna and farmed tuna in Maltese coastal waters
/library/oar/handle/123456789/144933
Title: Interactions between wild fauna and farmed tuna in Maltese coastal waters
Abstract: Atlantic bluefin tuna (Thunnus thynnus) ranching is a major aquaculture activity in
Malta, yet interactions between tuna farms and wild fauna remain poorly documented. This
study addresses this gap by identifying which wild fauna aggregate around farm sites, the
drivers of these aggregations, and the resulting ecological and operational implications.
Nineteen semi-structured interviews were conducted with tuna farm personnel and
environmental monitors across four ranching sites, providing multi-year observations on
species presence, behavior, and interaction patterns. In total, 41 wild fauna species and 143
observations were recorded. Aggregation was primarily driven by uneaten baitfish, habitat
provisioning from cage structures, and proximity to migratory routes.
Findings indicate that tuna farms act as fish aggregating devices (FADs) that alter local
trophic dynamics. Consumption of uneaten baitfish can reduce organic loading and improve
the condition of aggregated fauna, offering localized ecological benefits. However, reliance on
baitfish also perpetuates pressure on wild forage fish stocks, and predictable food subsidies may
create ecological traps, behavioral dependency, and changes to natural movement patterns. This
study provides the first baseline assessment of these interactions in Malta and highlights the
need for long-term monitoring and adaptive management to balance aquaculture productivity
with ecosystem sustainability.
Description: MSc. (EMS)(Melit.)2026-01-01T00:00:00ZSustaining snow : historical trends and future climate impacts on snowmaking sustainability in Southeastern U.S. ski resorts
/library/oar/handle/123456789/144858
Title: Sustaining snow : historical trends and future climate impacts on snowmaking sustainability in Southeastern U.S. ski resorts
Abstract: Snowmaking has become an essential adaptation for ski resorts in the Southeast United
States, where marginal winter temperatures and low natural snowfall increasingly constrain
reliable operations. This study evaluates the feasibility and sustainability of snowmaking
under historical and projected climate conditions across six representative ski resorts: Wisp,
Snowshoe, Winterplace, Massanutten/Wintergreen, and Bryce, using NOAA hourly weather
records from 2005 to 2025. The analysis used Linear regression scenario modeling to
estimate 2040 snowmaking conditions under moderate and high warming scenarios. Results
show available snowmaking hours reducing by 0.31-5.11% per decade, with February
exhibiting the most substantial increase in both mean and cold hour wet-bulb temperatures
(≤28°F/-2.2°C) of the winter months (Feb-Mar). Precipitation totals and extremes show no
clear trends but remain operationally disruptive due to frequent and episodic heavy rain
events. Scenario modeling suggests slight increases in Wet-bulb temperatures and
proportional declines in cold hours by 2040. Interviews with snowmaking managers at Wisp,
Snowshoe, and Massanutten confirm that resorts are already experiencing later openings,
shorter cold spells, and growing reliance on high-capacity, automated snowmaking systems.
These findings indicate that even modest warming can disproportionately affect snowmaking
efficiency, resource demand, and operational stability in this ski region. The study concludes
that long-term viability will depend on strategic investment in snowmaking technology,
expanded water and energy infrastructure, and critical integration of on-site monitoring
through summit and base weather stations.
Description: MSc. (EMS)(Melit.)2026-01-01T00:00:00ZLand as community : an assessment of habitat fragmentation, development pressure, and wildlife impact along the southern border of Shenandoah National Park
/library/oar/handle/123456789/144857
Title: Land as community : an assessment of habitat fragmentation, development pressure, and wildlife impact along the southern border of Shenandoah National Park
Abstract: The fragmentation of large, protected areas is a growing concern in ecology, as
increased urban and infrastructural development isolates habitat patches and can lead to
increased human-wildlife conflict, especially along roadways. Research has shown that
fragmentation and loss of forest cover in protected areas is correlated with increased
infrastructural development, and that roadways have an outsized effect on surrounding
habitat and animal populations for their size, though there are gaps in this knowledge
relevant to specific protected areas and highly mobile animal species. I examined the area
around the Interstate 64 corridor that sits between the southern tip of Shenandoah National
Park and the Blue Ridge Parkway, utilizing land cover, topographic, and deer-vehicle crash
data to analyze the effect of infrastructure and urban development on the fragmentation of
white-tail deer habitat. Habitat fragmentation was shown to be more widespread south of the
highway corridor, where there is less protected land area, allowing for more dense
infrastructural development along the mountain ridges that comprise the bulk of the study
area. Additionally, I-64 was shown to be the greatest barrier to deer within the study area due
to its width and much higher traffic volume than surrounding county and state roads. Food
and water resources are scarce within the study area, likely leading to increased competition
in the autumn months, incentivizing animals to range further in search of nutritional
requirements – making the highway crossing a necessity to move between both protected
areas. Fragmentation analysis highlights the importance of holistic management of protected
areas, treating them as part of wider ecosystems rather than closed systems, as well as
providing insights for the creation of wildlife corridor implementation, which would help
reduce human-wildlife conflict within the study area.
Description: MSc. (EMS)(Melit.)2026-01-01T00:00:00ZAddressing front gardens as part of a GI strategy to increase biodiversity and reduce climate effects in Malta
/library/oar/handle/123456789/144856
Title: Addressing front gardens as part of a GI strategy to increase biodiversity and reduce climate effects in Malta
Abstract: Front gardens in Malta are limited in size and quantity, but increasing their frequency over the
island could increase biodiversity connectivity and decrease harsh climate effects such as
flooding and air pollution. Previous greening schemes involving front gardens have failed in
Malta and the number of front-gardens-to-single-family-homes in Malta is decreasing as
construction of apartment buildings is increasing. This study examined the feasibility of
implementing a front garden program in Malta like the front yard garden program, Fleet
Farming, in Orlando. The methods involved an extensive literature review and interviews with
members from the Fleet Farming program and stakeholders in Malta that have worked on
previous greening schemes. It was found that, while the Fleet Farming program would not be
able to be directly translated to the Maltese climate and culture, a similar program could be
implemented if proper adjustments are made, based mainly on the size of the garden plots. This
study is the foundation for future front garden greening schemes and suggests future research in
alternative growing methods for front gardens, such as raised beds, containers, and green roofs.
Studies on best locations would also be recommended to improve overall success rate of the
viability of gardens. This study highlights the importance of front gardens in Malta and aims to
support the development of a collaborative community program to increase the usage of front
gardens throughout the island.
Description: MSc. (EMS)(Melit.)2025-01-01T00:00:00Z