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Project details
| Title: | Submesoscale processes – billows and eddies – along the productive shelf by the East Australian Current |
| Id: | 2536 |
| Investigator(s): | Iain Suthers
University of New South Wales - School of Biological, Earth and Environmental Sciences [details] |
| Description: | scientific objectives: 1.Examine the entrainment shelf water and the amount of eddy uplift driven in relation to the strength of the adjacent EAC, coastal wind, the coastal counter-current, and slope canyons; and to quantify oceanographic behaviour of frontal eddies including their movement; 2.Compare the zooplankton size structure and the bioacoustic biomass between coastal waters, frontal eddies and the adjacent EAC or Tasman Sea; 3.Similarly compare the phytoplankton (prokaryotic and eukaryotic) biomass, diversity of pigments and other molecular markers and biogeochemical functions across coastal, EAC and frontal eddy water masses, 4.Similarly compare the zooplankton size structure and species diversity, the larval fish size distribution and the bioacoustic biomass; 5.The abundance, condition and genetic traits of other zooplankton (lobster phyllosoma). |
| Years: | 2015 |
Publications
Dataset
- Iain Suthers (2022) IMOS - Larval Fish Sub-Facility - Database of Marine Larval Fish Assemblages in Australian temperate and subtropical waters (1983 - ongoing) External link to reference
- data sourced from following voyages IN2015_V03
IPT Resource
- Distribution of Palinuridae and Scyllaridae phyllosoma larvae within the East Australian Current: a climate change hot spot, RV Investigator voyage IN2015_V03, Tasman Sea (2015) (Darwin Core Archive) External link to reference
- data sourced from following voyages IN2015_V03
- Marine Microbes from RV Investigator voyage IN2015_V03, Australia (2015) (Darwin Core Archive) External link to reference
- data sourced from following voyages IN2015_V03
Journal Article
- Hawes, Steven,Miskiewicz, Tony,Garcia, Valquiria,Figueira, Will (2020) Size and stage-dependent vertical migration patterns in reef-associated fish larvae off the eastern coast of Australia. Deep Sea Research Part I: Oceanographic Research Papers 164 pp103362-. 10.1016/j.dsr.2020.103362
- data sourced from following voyages IN2015_V03
- Hinchliffe, Charles,Smith, James A.,Everett, Jason D.,Falster, Daniel S.,Lara-Lopez, Ana,Miskiewicz, Anthony G.,Richardson, Anthony J.,Schilling, Hayden T.,Suthers, Iain M. (2021) Modelling the distribution of larval fish in a western boundary current using a multi-voyage database. Reviews in Fish Biology and Fisheries 31 pp399-415. 10.1007/s11160-021-09647-x
- data sourced from following voyages IN2015_V03 SS2010_V08 SS200704 SS200411 SS200408
- Kwong, Lian E.,Henschke, Natasha,Pakhomov, Evgeny A.,Everett, Jason D.,Suthers, Iain M. (2020) Mesozooplankton and Micronekton Active Carbon Transport in Contrasting Eddies. Frontiers in Marine Science 6 pp-. 10.3389/fmars.2019.00825
- data sourced from following voyages IN2017_V04 IN2015_V03
- Laiolo, Leonardo,McInnes, Allison S.,Matear, Richard,Doblin, Martina A. (2016) Key Drivers of Seasonal Plankton Dynamics in Cyclonic and Anticyclonic Eddies off East Australia. Frontiers in Marine Science 3 pp-. 10.3389/fmars.2016.00155
- data sourced from following voyages IN2015_V03
- Larsson, ME,Laczka, OF,Suthers, IM,Ajani, PA,Doblin, MA (2018) Hitchhiking in the East Australian Current: rafting as a dispersal mechanism for harmful epibenthic dinoflagellates. Marine Ecology Progress Series 596 pp49-60. 10.3354/meps12579
- data sourced from following voyages IN2015_V03
- McInnes, Allison Skinner,Laczka, Olivier F.,Baker, Kirralee G.,Larsson, Michaela E.,Robinson, Charlotte M.,Clark, Jennifer S.,Laiolo, Leonardo,Alvarez, Marco,Laverock, Bonnie,Kremer, Colin T. (2019) Live cell analysis at sea reveals divergent thermal performance between photosynthetic ocean microbial eukaryote populations. The ISME Journal 13 pp1374-1378. 10.1038/s41396-019-0355-6
- data sourced from following voyages IN2015_V03
- Roughan, M., S. R. Keating, A. Schaeffer, P. Cetina Heredia, C. Rocha, D. Griffin, R. Robertson, and I. M. Suthers (2017), A tale of two eddies: The biophysical characteristics of two contrasting cyclonic eddies in the East Australian Current System, J. Geophys. Res. Oceans, 122, 2494–2518. 10.1002/2016JC012241
- data sourced from following voyages IN2015_V03
- Schilling, Hayden T.,Hinchliffe, Charles,Gillson, Jonathan P.,Miskiewicz, Anthony G.,Suthers, Iain M. (2022) Coastal winds and larval fish abundance indicate a recruitment mechanism for southeast Australian estuarine fisheries. Fisheries Oceanography 31 pp40-55. 10.1111/fog.12561
- data sourced from following voyages IN2015_V03
- Smith, J., Miskiewicz, A., Beckley, L., Everett, J., Garcia, V., Gray, C., Holliday, D., Jordan, A., Keane, J., Lara-Lopez, A., Leis, J., Matis, P., Muhling, B., Neira, F., Richardson, A., Smith, K., Swadling, K., Syahailatua, A., Taylor, M., van Ruth, P., Ward, T., Suthers, I. (2018) A database of marine larval fish assemblages in Australian temperate and subtropical waters, Scientific Data, 5, 16 Oct 2018, pages 180207 10.1038/sdata.2018.207
- data sourced from following voyages SS200704 SS200411 SS200408 IN2015_V03 SS2010_V08
- Suthers, Iain M.,Schaeffer, Amandine,Archer, Matthew,Roughan, Moninya,Griffin, David A.,Chapman, Christopher C.,Sloyan, Bernadette M.,Everett, Jason D. (2023) Frontal eddies provide an oceanographic triad for favorable larval fish habitat. Limnology and Oceanography pp-. 10.1002/lno.12326
- data sourced from following voyages IN2015_V03
- Valquiria Garcia, Hayden T. Schilling, Derrick O. Cruz, Steven M. Hawes, Jason D. Everett, Moninya Roughan, Anthony G. Miskiewicz, Evgeny A. Pakhomov, Andrew Jeffs, Iain M. Suthers (2022) Entrainment and development of larval fish assemblages in two contrasting cold core eddies of the East Australian Current system. Mar Ecol Prog Ser. Vol 658 1-18. 10.3354/meps13982
- data sourced from following voyages IN2015_V03
Scientific Highlight
- IN2015_V03 Science Highlights Download file
- data sourced from following voyages IN2015_V03
Voyage Summary
- IN2015_V03 Voyage Summary Download file
- data sourced from following voyages IN2015_V03
Data
- Distribution of Palinuridae and Scyllaridae phyllosoma larvae within the East Australian Current: a climate change hot spot, RV Investigator voyage IN2015_V03, Tasman Sea (2015) [IPT: in2015_v03_phyllosoma] - at OBIS
- Marine Microbes from RV Investigator voyage IN2015_V03, Australia (2015) [IPT: bioplatforms_mm_in2015_v03] - at OBIS
Metadata.
Use [details] link to view survey details (map, reports, metadata etc) including links to download data.
- RV Investigator Voyage IN2015_V03 Surface Velocity Program (SVP) Drifter Data [link]
- RV Investigator Voyage IN2015_V03 EZ-Net Zooplankton and Micronekton Samples [link]
List of surveys that this project was on.
Use [details] link to view survey details (map, reports, metadata etc) including links to download data.
| Survey | Investigator | Description |
|---|---|---|
| IN2015_V03 [details] |
I. Suthers (UNSW-SIMS) | Frontal eddies or "billows" are ubiquitous, small cyclonic eddies <100 km in diameter, and regularly characterise the continental side of all ocean boundary currents. They occur approximately weekly, and last up to 3 weeks which is sufficient for the early life history of fish. The physics and biology of these ubiquitous eddies are not understood. They are not resolved by present-day surface altimetry, but are evident along the East Australian Current (EAC) in SST or in real-time surface currents from the Coffs Harbour HF Radar (30.5°S). We will determine if uplift within the eddy nurtures plankton in comparison to the inner shelf water; and in comparison to similar eddies offshore around the EAC retroflection. We expect entrainment of adjacent shelf water is preconditioned to sustain larval fish, compared to entrainment of Tasman Sea water. We expect the condition and size distribution (survival) of larval fish will be greater in frontal eddies than in source water on the shelf or in the EAC. Frontal eddies may be a general mechanism for recruitment to coastal fisheries, such as for the Kuroshio Current, Gulf Stream, Agulhas Current. We will continue our long-term observations of phytoplankton, salps, krill, larval fish assemblages and eddy behaviour in this important region. We will investigate 2 to 3 frontal eddies on 2 separate occasions in the following possible locations: * the EAC separation zone south of North Stradbroke Island (27.6°S); or * south of Cape Byron (28.6°S); * south of Smoky Cape (30.9°S), * under the Coffs Harbour HF radar (30°S) * south of Seal Rocks/Sugarloaf Point (32.4°S) and off Port Stephens (32.7°S) or Sydney (34°S). Our scientific objectives are to: 1. Examine the entrainment shelf water and the amount of eddy uplift driven in relation to the strength of the adjacent EAC, coastal wind, the coastal counter-current, and slope canyons; and to quantify oceanographic behaviour of frontal eddies including their movement; 2. Compare the zooplankton size structure and the bioacoustic biomass between coastal waters, frontal eddies and the adjacent EAC or Tasman Sea; 3. Similarly compare the phytoplankton (prokaryotic and eukaryotic) biomass, diversity of pigments and other molecular markers and biogeochemical functions across coastal, EAC and frontal eddy water masses, 4. Similarly compare the zooplankton size structure and species diversity, the larval fish size distribution and the bioacoustic biomass; 5. The abundance, condition and genetic traits of other zooplankton (lobster phyllosoma). |