Scott D. Nodder
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View article: Quantifying indigenous kelp contributions to New Zealand’s deep-sea carbon sinks
Quantifying indigenous kelp contributions to New Zealand’s deep-sea carbon sinks Open
Anthropogenic activities have caused an increase in greenhouse gas emissions, leading to the alarming rate of global temperature increase and associated climate change impacts. Due to these challenges, nature-based solutions for capturing …
View article: Development and validation of five native Aotearoa New Zealand genera-specific large brown macroalgal eDNA ddPCR assays
Development and validation of five native Aotearoa New Zealand genera-specific large brown macroalgal eDNA ddPCR assays Open
Environmental DNA is a rapidly growing methodology for ecological studies, leading to an increase in innovative techniques, such as the droplet-digital PCR (ddPCR), that can quantify and target DNA at a high rate of sensitivity for eDNA st…
View article: Aotearoa New Zealand’s marine carbon cycle in a changing climate – Current understanding and future directions
Aotearoa New Zealand’s marine carbon cycle in a changing climate – Current understanding and future directions Open
The marine system plays a critical role in the global climate cycle, as a major control of atmospheric carbon dioxide (CO2). Marine primary production (photosynthesis) and remineralisation of organic carbon (respiration, degradation) deter…
View article: Export dynamics of protists across the southern subtropical frontal zone reveal taxon-specific patterns
Export dynamics of protists across the southern subtropical frontal zone reveal taxon-specific patterns Open
Gravitational particle sinking is the main mechanism for carbon export in the biological carbon pump. However, the export dynamics of the particle-associated protist community are not fully understood. We used 18S rRNA gene metabarcoding t…
View article: Earthquake-triggered submarine canyon flushing transfers young terrestrial and marine organic carbon into the deep sea
Earthquake-triggered submarine canyon flushing transfers young terrestrial and marine organic carbon into the deep sea Open
Submarine canyons transfer substantial amounts of sediment and organic carbon (OC) into the deep ocean, nourishing deep-sea ecosystems and contributing to the global carbon cycle through OC burial and sequestration. Tracking lateral OC tra…
View article: Probabilistic ecological risk assessment for deep‐sea mining: A Bayesian network for Chatham Rise, Pacific Ocean
Probabilistic ecological risk assessment for deep‐sea mining: A Bayesian network for Chatham Rise, Pacific Ocean Open
Increasing interest in seabed resource use in the ocean is introducing new pressures on deep‐sea environments, the ecological impacts of which need to be evaluated carefully. The complexity of these ecosystems and the lack of comprehensive…
View article: Environmental implications of future offshore renewable energy development in Aotearoa New Zealand
Environmental implications of future offshore renewable energy development in Aotearoa New Zealand Open
Global climate mitigation efforts seeking to reduce greenhouse gas emissions require more renewable energy generation and utilisation. In Aotearoa New Zealand there are initiatives underway to develop offshore wind, or in the future, array…
View article: Recovery of deep-sea meiofauna community in Kaikōura Canyon following an earthquake-triggered turbidity flow
Recovery of deep-sea meiofauna community in Kaikōura Canyon following an earthquake-triggered turbidity flow Open
Turbidity flows can transport massive amounts of sediment across large distances with dramatic, long-lasting impacts on deep-sea benthic communities. The 2016 M w 7.8 Kaikōura Earthquake triggered a canyon-flushing event in Kaikōura Canyon…
View article: Experimental seabed disturbance effects on Chatham Rise deep-sea meiofaunal communities, Southwest Pacific
Experimental seabed disturbance effects on Chatham Rise deep-sea meiofaunal communities, Southwest Pacific Open
Growing global demand for deep-sea resources may lead to increased pressure on benthic ecosystems. Here we examined changes in meiofaunal communities following an in situ physical disturbance experiment. A significant change in meiofaunal …
View article: Bioturbation and faunal-mediated ecosystem functioning in a deep-sea benthic community recovering from a severe seabed disturbance
Bioturbation and faunal-mediated ecosystem functioning in a deep-sea benthic community recovering from a severe seabed disturbance Open
Kaikōura Canyon, offshore Aotearoa/New Zealand, is a hotspot for deep-sea benthic biology with globally high faunal abundance. The Mw7.8 Kaikōura earthquake in 2016 triggered a severe disturbance that reshaped the canyon, evacuating an est…
View article: Probabilistic ecological risk assessment for deep-sea mining: a Bayesian Network for Chatham Rise, SW Pacific Ocean
Probabilistic ecological risk assessment for deep-sea mining: a Bayesian Network for Chatham Rise, SW Pacific Ocean Open
Increasing interest in seabed resource use in the ocean is introducing new pressures on deep-sea environments, the ecological impacts of which need to be evaluated carefully. The complexity of these ecosystems and the dearth of comprehensi…
View article: Deep-sea macrofauna community recovery in Kaikōura canyon following an earthquake-triggered turbidity flow
Deep-sea macrofauna community recovery in Kaikōura canyon following an earthquake-triggered turbidity flow Open
Sediment density flows can transport massive amounts of sediment across large distances and can have dramatic, long-lasting impacts on deep-sea benthic communities. A canyon-flushing event in Kaikōura Canyon, New Zealand, triggered by the …
View article: Decoupled growth and grazing rates of diatoms and green algae drive increased phytoplankton productivity on <scp>HNLC</scp> sub‐<scp>Antarctic</scp> plateaux
Decoupled growth and grazing rates of diatoms and green algae drive increased phytoplankton productivity on <span>HNLC</span> sub‐<span>Antarctic</span> plateaux Open
The combination of iron limitation and microzooplankton grazing controls phytoplankton productivity and taxonomic composition in high‐nutrient low‐chlorophyll (HNLC) regions. While increased productivity and diatom contribution triggered b…
View article: Reduction in size of the calcifying phytoplankton Calcidiscus leptoporus to environmental changes between the Holocene and modern Subantarctic Southern Ocean
Reduction in size of the calcifying phytoplankton Calcidiscus leptoporus to environmental changes between the Holocene and modern Subantarctic Southern Ocean Open
The Subantarctic Zone of the Southern Ocean plays a disproportionally large role on the Earth system. Model projections predict rapid environmental change in the coming decades, including ocean acidification, warming, and changes in nutrie…
View article: The role of wind and buoyancy forcing on mixed layer depths and productivity on the Chatham Rise from ocean glider and ship-based observations
The role of wind and buoyancy forcing on mixed layer depths and productivity on the Chatham Rise from ocean glider and ship-based observations Open
The Subtropical Front (STF) and associated biological productivity are topographically locked to the Chatham Rise. Year-to-year differences of upper ocean dynamics and associated responses of phytoplankton are valuable for understanding va…
View article: Kaikōura event bed facies data release
Kaikōura event bed facies data release Open
Data to accompany manuscript Testing turbidite conceptual models with the 2016 Mw7.8 Kaikōura earthquake co-seismic event bed, Aotearoa New Zealand Katherine L. Maier1*, Lorna J. Strachan2, Stephanie Tickle3, Alan Orpin1, Scott D. Nodder1,…
View article: Kaikōura event bed facies data release
Kaikōura event bed facies data release Open
Data to accompany manuscript Testing turbidite conceptual models with the 2016 Mw7.8 Kaikōura earthquake co-seismic event bed, Aotearoa New Zealand Katherine L. Maier1*, Lorna J. Strachan2, Stephanie Tickle3, Alan Orpin1, Scott D. Nodder1,…
View article: Deep-sea benthic megafauna hotspot shows indication of resilience to impact from massive turbidity flow
Deep-sea benthic megafauna hotspot shows indication of resilience to impact from massive turbidity flow Open
Sediment density flows are large scale disturbances that can have dramatic impacts on seafloor animal communities in the deep sea. Seafloor imagery collected in Kaikōura Canyon (New Zealand), before and after a sediment density flow event …
View article: Salp blooms increase carbon export 5-fold in the Southern Ocean
Salp blooms increase carbon export 5-fold in the Southern Ocean Open
The Southern Ocean (SO) contributes substantially to the global biological carbon pump (BCP). Salps in the SO, in particular Salpa thompsoni , are keystone grazers that produce large, fast-sinking fecal pellets with high export potential. …
View article: Influence of environmental variability and Emiliania huxleyi ecotypes on alkenone-derived temperature reconstructions in the subantarctic Southern Ocean
Influence of environmental variability and Emiliania huxleyi ecotypes on alkenone-derived temperature reconstructions in the subantarctic Southern Ocean Open
Long-chain unsaturated alkenones produced by haptophyte algae are widely used as paleotemperature indicators. The unsaturation relationship to temperature is linear at mid-latitudes, however, non-linear responses detected in subpolar regio…
View article: Planktonic protist diversity across contrasting Subtropical and Subantarctic waters of the southwest Pacific
Planktonic protist diversity across contrasting Subtropical and Subantarctic waters of the southwest Pacific Open
Planktonic protists are an essential component of marine pelagic ecosystems where they mediate important trophic and biogeochemical functions. Although these functions are largely influenced by their taxonomic affiliation, the composition …
View article: Isoscape Models of the Southern Ocean: Predicting Spatial and Temporal Variability in Carbon and Nitrogen Isotope Compositions of Particulate Organic Matter
Isoscape Models of the Southern Ocean: Predicting Spatial and Temporal Variability in Carbon and Nitrogen Isotope Compositions of Particulate Organic Matter Open
Polar marine ecosystems are particularly vulnerable to the effects of climate change. Warming temperatures, freshening seawater, and disruption to sea‐ice formation potentially all have cascading effects on food webs. New approaches are ne…
View article: Has (anthropogenic) climate change driven subantarctic Emiliania huxleyi populations beyond their natural state?
Has (anthropogenic) climate change driven subantarctic Emiliania huxleyi populations beyond their natural state? Open
<p>The global ocean acts as a climate regulator through the uptake of Earth&#8217;s excess heat and the absorption of about 30% of anthropogenic CO<sub>2</sub> emissions since 1750. &#160;Southern Ocean waters are…
View article: Latest Miocene (Kapitean/Messinian) glauconite and the central Chatham Rise greensand: an enigmatic, highly condensed, relict/palimpsest deposit on the modern seafloor - Supplementary File, Tables & Figures
Latest Miocene (Kapitean/Messinian) glauconite and the central Chatham Rise greensand: an enigmatic, highly condensed, relict/palimpsest deposit on the modern seafloor - Supplementary File, Tables & Figures Open
A unique 10-140 cm thick veneer of greensand and glauconite-rich deposits (10-80 wt% glauconite) presently sits atop central Chatham Rise (CR) in water depths of 200-500 m. The glauconite is dominated by chemically mature, polished ovoidal…