Aaron Lim

ORCID: 0000-0003-0451-9347
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Research Areas
  • Coral and Marine Ecosystems Studies
  • Underwater Acoustics Research
  • Marine animal studies overview
  • Maritime and Coastal Archaeology
  • Ichthyology and Marine Biology
  • Marine and fisheries research
  • Marine and coastal plant biology
  • Marine Biology and Ecology Research
  • Geology and Paleoclimatology Research
  • Underwater Vehicles and Communication Systems
  • 3D Surveying and Cultural Heritage
  • Cephalopods and Marine Biology
  • Remote Sensing and LiDAR Applications
  • Marine and environmental studies
  • Augmented Reality Applications
  • Geographic Information Systems Studies
  • Microplastics and Plastic Pollution
  • Aquaculture disease management and microbiota
  • Hydrology and Sediment Transport Processes
  • Geological formations and processes
  • Marine Sponges and Natural Products
  • Cryospheric studies and observations
  • Railway Systems and Energy Efficiency
  • Microbial Community Ecology and Physiology
  • Methane Hydrates and Related Phenomena

University College Cork
2013-2024

Dankook University
2023

Abstract Strong currents are a key component of benthic habitats by supplying food and nutrients to filter-feeding organisms such as cold-water corals. Although field measurements show that coral exist in areas elevated bottom currents, flume studies corals feed more effectively at lower flow speeds. This research aims explore this disconnect situ utilising high spatial resolution ROV photogrammetric data coupled with temporal acoustic doppler current profile seven study sites within the...

10.1038/s41598-020-76446-y article EN cc-by Scientific Reports 2020-11-10

In this study we applied for the first time Fully Convolutional Neural Networks (FCNNs) to a marine bathymetric dataset derive morphological classes over entire Irish continental shelf. FCNNs are set of algorithms within Deep Learning that produce pixel-wise classifications in order create semantically segmented maps. While they have been extensively utilised on imagery ecological mapping, their application elevation data is still limited, especially geomorphology realm. We employed...

10.3389/fmars.2023.1228867 article EN cc-by Frontiers in Marine Science 2023-07-20

This study explores microplastic and cellulosic microparticle occurrences in the NE Atlantic, focusing on Porcupine Bank Canyon Seabight. Water samples from depths ranging between 605 2126 m Lophelia pertusa coral 950 depth were analysed. Microparticles detected deep-water habitats, with concentrations varying 2.33 to 9.67 particles L

10.1016/j.marpolbul.2024.116741 article EN cc-by Marine Pollution Bulletin 2024-07-31

Cold-water coral (CWC) mounds are biogenic, long-lived morphostructures composed primarily by scleractinian CWC's and hemipelagic sediments that form complex deep-sea microhabitats found globally but specifically along the European-Atlantic margin. In this work, high-resolution mapping was applied to identify individual organismal distribution zonation across a CWC Piddington Mound within Porcupine Seabight, Ireland Margin. Marine Object-Based Image Analysis (MOBIA) different machine...

10.1038/s41598-018-37725-x article EN cc-by Scientific Reports 2019-01-31

The Confined Morphologies Mapping (CoMMa) Toolbox, a novel ArcGIS Pro python toolbox expressly created for semi-automated seabed morphological mapping, is presented here. includes selection of tools the pre-processing, delineation and description confined features on digital elevation model (DEM) that are either negative or positive. CoMMa Toolbox addresses need flexible multi-faceted solution applicable to different mapping problems, also encapsulating re-interpreting existing...

10.1016/j.geomorph.2024.109227 article EN cc-by Geomorphology 2024-04-30

Geological, biological, morphological, and hydrochemical data are presented for the newly discovered Moytirra vent field at 45 o N. This is only high temperature hydrothermal known between Azores Iceland, in North Atlantic located on a slow to ultraslow‐spreading mid‐ocean ridge uniquely situated 300 m fault scarp of eastern axial wall, 3.5 km from volcanic crest. Furthermore, is, unusually tectonically controlled vents systems, basalt hosted perched midway up median valley wall presumably...

10.1002/ggge.20243 article EN Geochemistry Geophysics Geosystems 2013-08-12

Cold-water coral (CWC) reefs are complex structural habitats that considered biodiversity “hotspots” in deep-sea environments and subject to several climate anthropogenic threats. As three-dimensional habitats, there is a need for robust accessible technologies enable more accurate reef assessments. Photogrammetry derived from remotely operated vehicle video data an effective non-destructive method creates high-resolution reconstructions of CWC habitats. Here, three classification workflows...

10.3389/fmars.2021.640713 article EN cc-by Frontiers in Marine Science 2021-03-22

Cold-water coral (CWC) habitats are considered important centers of biodiversity in the deep sea, acting as spawning grounds and feeding area for many fish invertebrates. Given their occurrence remote parts planet, research on CWC has largely been derived from remotely-sensed marine spatial data. However, with ever-developing data acquisition processing methods non-ubiquitous nature infrastructure, studies completed isolation resulting large inconsistencies. Here, we present a concise review...

10.3390/geosciences11010009 article EN cc-by Geosciences 2020-12-26

Benthic fauna form spatial patterns which are the result of both biotic and abiotic processes, can be quantified with a range landscape ecology descriptors. Fine- to medium-scale (<1–10 m) have seldom been in deep-sea habitats, but provide fundamental ecological insights into species’ niches interactions. Cold-water coral reefs formed by Desmophyllum pertusum (syn. Lophelia pertusa ) Madrepora oculata traditionally mapped surveyed multibeam echosounders video transects, limit ability...

10.3389/fmars.2021.556313 article EN cc-by Frontiers in Marine Science 2021-03-23

National mapping programs (e.g., INFOMAR and MAREANO) global efforts (Seabed 2030) acquire large volumes of multibeam echosounder data to map areas the seafloor. Developing an objective, automated repeatable approach extract meaningful information from such vast quantities is now essential. Many or semi-automated approaches have been defined achieve this goal. However, resulted in classification schemes that are isolated bespoke, therefore it necessary form a standardised method. Sediment...

10.3390/rs13122317 article EN cc-by Remote Sensing 2021-06-13

Submarine canyons support high biomass communities as they act conduits where sediments, nutrients and organic matter from continental shelves, or carried along by slope currents, are transported into the abyssal zone. The upper Porcupine Bank Canyon (uPBC), located on Irish margin isolated terrigenous inputs, reveals a complex terrain substrate variation that affect distribution of benthic fauna. Here, ROV-based video, Conductivity-Temperature-Depth (CTD), current velocity profiles,...

10.3389/fmars.2020.571820 article EN cc-by Frontiers in Marine Science 2020-10-06

The characterisation of particle shape is an important analysis in the field sedimentary geology. At finer scales, it key for understanding sediment transport while at coarser such as boulders, vital coastal protection. However, accurate restricted by application 2D imaging 3D objects or expensive and time-consuming methods X-ray tomography laser scanning. This research outlines a low-cost, easy-to-use methodology employing structure-from-motion (SfM) photogrammetry. A smartphone device was...

10.3390/geosciences13070190 article EN cc-by Geosciences 2023-06-22

The “Little MonSta” benthic lander array consists of 8 ROV-deployable (remotely operated vehicle) instrumented platforms for monitoring physical and chemical oceanographic properties particle sampling developed as part the MMMonKey_Pro program (mapping, modeling, key processes controls in cold-water coral habitats submarine canyons). Little MonStas offer flexible solutions to meet need monitor marine environments during a historically unprecedented time climate-driven oceanic change, develop...

10.3390/s21103355 article EN cc-by Sensors 2021-05-12

Cold-water corals (CWCs) have come under threat from anthropogenic activities such as fishing despite their ecological significance biodiversity hotspots and are being protected in Europe the EU Habitats Directive with some designated Special Areas of Conservation (SACs). This study maps distribution sources marine litter CWC habitats two SACs on Irish margin. Data were collected remotely operated vehicle SACs. The density, abundance composition assessed, differences observed between sites....

10.1016/j.marpolbul.2022.113764 article EN cc-by Marine Pollution Bulletin 2022-05-25

Structure-from-Motion (SfM) photogrammetry is a time and cost-effective method for high-resolution 3D mapping of cold-water corals (CWC) reefs deep-water environments. The accurate classification analysis marine habitats in provide valuable information the development management strategies large areas at various spatial temporal scales. Given amount data derived from SfM sources such as Remotely-Operated Vehicles (ROV), there an increasing need to advance towards automatic semiautomatic...

10.3389/fenvs.2022.1044706 article EN cc-by Frontiers in Environmental Science 2022-12-13

The Irish Shelf Seabed Geomorphological Map (ISSGM) (v2023) presented here, is the first high-resolution geomorphological map of entire continental shelf. This large-scale mapping exercise took advantage vast INFOMAR multibeam echosounder dataset, and used a protocol semi-automated techniques to accurately rapidly extract seabed features. All previous efforts existing literature on shallow shelf geomorphology have also been collated integrated in map, critically evaluating interpretations....

10.1080/17445647.2023.2283192 article EN cc-by Journal of Maps 2023-11-18
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