A National Reference Station infrastructure for Australia - Using telemetry and central processing to report multi-disciplinary data streams for monitoring marine ecosystem response to climate change

Lynch, Timothy P.; Roughan, Moninya; Mclaughlan, D.; Hughes, David A.; Cherry, Donald S.; Critchley, G.; Allen, Simon; Pender, Lindsay; Thompson, Peter A.; Richardson, Anthony J.; Coman, Frank; Steinberg, Craig; Terhell, D.; Seuront, Laurent; McLean, Colleen E.; Brinkman, Gary; Meyers, Gary

doi:10.1109/oceans.2008.5151856

Cited by 8 publications

(6 citation statements)

References 11 publications

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“…An important component of Australia's IMOS is the NRS network. The overall aim of the NRS network is to "provide the data to examine interactions between major coastal boundary currents and continental shelf ecosystems, especially in the context of climate change" (Lynch et al, 2008). We find that the existing nine NRSs provide a good representation of the interannual variability in up to 80% of the shelf region around Australia.…”

Section: Discussionmentioning

confidence: 97%

“…One of the goals of the NRS network is to "monitor major coastal boundary currents" around Australia (Lynch et al, 2008). To gain insight into the extent to which the nine existing NRSs meet this goal, we present combined maximum correlation maps for near-surface velocity from the model on both intraseasonal and interannual timescales in Fig.…”

Section: Correlation Fieldsmentioning

confidence: 99%

“…This indicates that a near-surface velocity observation from Table 1 Percentage of area with a combined correlation of greater than 0.6 or 0.8, for the NRS and the NRS plus the IMOS moorings (in parentheses), based on estimates from the OFAM model. a single mooring at this location (say, the upper-most velocity from the ADCP) is not suitable for monitoring the variability associated with the EAC (recall that the original "aim of the NRS network is to provide the data to examine interactions between major coastal boundary currents and continental shelf ecosystems", Lynch et al (2008)). A velocity observation at the North Stradbroke NRS only represents the variability at the observation site, and within a few tens of kilometres in the along-shore direction.…”

Section: Correlation Fieldsmentioning

confidence: 99%

“…The aim of the NRSs is to "provide the data to examine interactions between major coastal boundary currents and continental shelf ecosystems" (Lynch et al, 2008). This includes nine moorings in shallow water (20-100 m depth) around Australia that are labelled in Fig.…”

Section: Introductionmentioning

confidence: 99%

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Assessing the footprint of a regional ocean observing system

Oke

Sakov

2012

Journal of Marine Systems

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Section: Discussionmentioning

confidence: 97%

Section: Correlation Fieldsmentioning

confidence: 99%

Section: Correlation Fieldsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessing the footprint of a regional ocean observing system

Oke

Sakov

2012

Journal of Marine Systems

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“…Atmosphere from fresh samples taken directly from Niskin bottles, following standard protocols (Cowley et al, 1999). All metadata from the NRS time-series, including sea surface temperature, salinity, dissolved inorganic nutrients, zooplankton and phytoplankton counts and biomass, carbon and chlorophyll a concentrations were collected in accordance with the IMOS NRS sampling protocol (Lynch et al, 2008(Lynch et al, , 2014, are publicly available, and were extracted for this study from the IMOS Ocean Data portal (https://imos.aodn.org.au).…”

Section: Introductionmentioning

confidence: 99%

Microbial tropicalization driven by a strengthening western ocean boundary current

Messer

Ostrowski

Doblin

et al. 2020

Global Change Biology

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Western boundary currents (WBCs) redistribute heat and oligotrophic seawater from the tropics to temperate latitudes, with several displaying substantial climate change‐driven intensification over the last century. Strengthening WBCs have been implicated in the poleward range expansion of marine macroflora and fauna, however, the impacts on the structure and function of temperate microbial communities are largely unknown. Here we show that the major subtropical WBC of the South Pacific Ocean, the East Australian Current (EAC), transports microbial assemblages that maintain tropical and oligotrophic (k‐strategist) signatures, to seasonally displace more copiotrophic (r‐strategist) temperate microbial populations within temperate latitudes of the Tasman Sea. We identified specific characteristics of EAC microbial assemblages compared with non‐EAC assemblages, including strain transitions within the SAR11 clade, enrichment of Prochlorococcus, predicted smaller genome sizes and shifts in the importance of several functional genes, including those associated with cyanobacterial photosynthesis, secondary metabolism and fatty acid and lipid transport. At a temperate time‐series site in the Tasman Sea, we observed significant reductions in standing stocks of total carbon and chlorophyll a, and a shift towards smaller phytoplankton and carnivorous copepods, associated with the seasonal impact of the EAC microbial assemblage. In light of the substantial shifts in microbial assemblage structure and function associated with the EAC, we conclude that climate‐driven expansions of WBCs will expand the range of tropical oligotrophic microbes, and potentially profoundly impact the trophic status of temperate waters.

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