Data Trawler - Survey Details

IN2015_C02    - is a Marine National Facility voyage

Period:- 2015-11-30 to 2015-12-22

From: Port Lincoln To: Fremantle

Region: Central and eastern Great Australian Bight (GAB), Ceduna Terrace

Ship :- Investigator (RV) [details]

Project:- Great Australian Bight Research Program [details]

Description:- RV Investigator Research Charter Voyage in2015_c02. Great Australian Bight (GAB) Deep water pelagic and benthic ecosystem study. Scientific Objectives: This voyage will characterise deep-water pelagic and benthic community structure and identify key ecological processes in the central and eastern GAB, and forms part of the GAB Research Program that aims to describe the key elements of the GAB marine ecosystem. This understanding of the structure and function of the ecosystem will be used to inform future integrated and sustainable ocean management and assessment/mitigation of potential future impacts. An overarching objective of the voyage is to contribute to developing models of ecosystem-level structure and function for the GAB The pelagic ecosystem structure in the eastern GAB, which is characterised by seasonal upwelling and a narrower continental slope, will be compared with the poorly sampled central GAB, where year-round downwelling is predicted and the shelf and slope are wider with the following GAB Research Program objectives; 1.Compare the eastern and central GAB continental margin zooplankton and micronekton communities in terms of their species composition, size range, biomass, nutrient source/trophic pathways and habitat. 2.Testing the hypothesis that the "microbial food web" is the dominant planktonic food web over the deep GAB continental margin, particularly in the central GAB where year-round downwelling is thought to be the prevailing cross-margin flow, and that the more efficient "classic food web" only dominates in the eastern GAB during periods of nutrient-rich upwelling. 3.Describing the community structure, dynamics, biodiversity and endemism of microbes (i.e., viruses and bacteria), plankton (i.e., phytoplankton, zooplankton, ichthyoplankton) and micronekton (including squids, small pelagic and mesopelagic fish and gelatinous organisms). Benthic characterisation is important because there are virtually no existing benthic biological data beyond continental shelf depths (<200 m); because conservation values attributed to Commonwealth Marine Reserves (CMR) spanning wide depth ranges are untested on the mid- and lower continental slope; and because oil and gas lease areas extend across the GAB Marine Park (GAB MP). Within the GAB Research Program, the Benthic Biodiversity project has the following objectives: 1.Quantify spatial patterns in the physical environment, and composition and abundance of benthic fauna in BP leases and adjacent continental slope areas of the Great Australian Bight (GAB) to provide baseline metrics relevant to monitoring the potential future impacts of oil and gas exploration on benthic communities. 2.Determine requirements (including identifying indicators and metrics), and identify suitable control sites, for future ecological monitoring in the GAB - especially to detect and quantify ecological impacts from oil and gas exploration on benthic communities of the GAB Marine Park. Extract from in2015_c02 voyage plan, please see plan for full details.

Metadata:-

GAB Research Program_ Project 3.1 – Benthic Biodiversity Characterisation_ Biological collections [details]

GAB Research Program_ Project 3.1 – Benthic Biodiversity Characterisation_ Sediment data [details]

RV Investigator Radon Data - Selected Voyages (2015 onwards) [details]

RV Investigator Sea Carbon Dioxide (CO2) Data - Selected Voyages (2014 onwards) [details]

RV Investigator Voyage IN2015_C02 ADCP Data [details]

RV Investigator Voyage IN2015_C02 CTD Data [details]

RV Investigator Voyage IN2015_C02 EK60 Echosounder [details]

RV Investigator Voyage IN2015_C02 EM122 Multibeam Echosounder Data [details]

RV Investigator Voyage IN2015_C02 EM710 MKII Multibeam Echosounder Data [details]

RV Investigator Voyage IN2015_C02 End of Voyage (EOV) Archive [details]

RV Investigator Voyage IN2015_C02 Gravity Data [details]

RV Investigator Voyage IN2015_C02 Hydrology HYD Data [details]

RV Investigator Voyage IN2015_C02 SBP120 Sub-bottom Profiler Data [details]

RV Investigator Voyage IN2015_C02 Underway UWY Data [details]

Participants:- Click on column header to sort

MNF Reports

• IN2015_C02 Voyage Plan - includes objectives, investigator details, proposed data collection, voyage track and equipment to be used.

• IN2015_C02 Scientific Highlights - report of the key outputs

• IN2015_C02 Voyage Summary - includes preliminary results, voyage narrative, types of data collected with C77/ROSCOP codes.

• View Survey map

Publications from data derived from this voyage

• Ahyong, S. T. (2019) Cyclodorripoida Records of the Australian Museum 71

• Baghurst, B., Lukatelich, R., Smith, D., Begg G., Lewis, R., and Smith, R..(2017), CSIRO: Findings from the Great Australian Bight Research Program–an integrated study of environmental, economic and social values. The APPEA Journal 57(2) 388-392. doi:10.1071/AJ16144

• Farrelly, C A., Ahyong, S T. (2019) Deepwater decapod, stomatopod and lophogastrid Crustacea from Eastern Australia and the Great Australian Bight collected in 2015–2017: preliminary identifications of 191 species. Museum Victoria Science Reports, 21, pp 1-97. doi:10.24199/j.mvsr.2019.21

• Hook, S E., Revill, A T., Mondon, J., Corbett, P., Armstrong, E K., Song, J., Tanner, J E., Stalvies, C., Ross, A S., Williams, A. (2018) 'Naturally occurring hydrocarbon content and baseline condition of deep-sea benthic fauna from the Great Australian Bight', Deep Sea Research Part II: Topical Studies in Oceanography 157-158 pp 106-120. doi:10.1016/j.dsr2.2018.08.005

• MacIntosh, H., Althaus, F., Williams, A., Tanner, J. E., Alderslade, P., Ahyong, S T., Bax, N., Criscione, F., Crowther, A L., Farrelly, C A. (2018) Invertebrate diversity in the deep Great Australian Bight (200–5000 m). Marine Biodiversity Records, 11. doi:10.1186/s41200-018-0158-x

• Ross, A., Williams, A., Talukder, A., Parr, J., Trefry, C., Kempton, R., Stalvies, C., Althaus, F., Kulpecz, A., Schaefer, C., and Rarey, P. (2017), Building the regional understanding of the deep-water geology and benthic ecology of the Great Australian Bight. The APPEA Journal 57(2) 798-805 doi:10.1071/AJ16212

• Ross, A., Williams, A., Talukder, A., Parr, J., Trefry, C., Kempton, R., Stalvies, C., Schinteie, R., Ezzy, A., Kulpecz, A., Schaefer, C., Rarey, P. (2018) Insights into the Great Australian Bight gained through marine geology and benthic ecology studies. AJ17240. APPEA 2018 Conference and Exhibition, 14-17th May, 2018, Adelaide, Australia.

• Sorokin, S J., Ekins, M G., Yang, Q., Cárdenas, P. (2019) A new deep-water Tethya (Porifera, Tethyida, Tethyidae) from the Great Australian Bight and an updated Tethyida phylogeny. European Journal of Taxonomy n. 529, June 2019. doi:10.5852/ejt.2019.529

• Tanner, J E., Althaus, F., Sorokin, S J., Williams, A. (2018) 'Benthic biogeographic patterns in the southern Australian deep sea: Do historical museum records accord with recent systematic, but spatially limited, survey data?' Ecology and Evolution 2018; 8: 11423– 11433. doi:10.1002/ece3.4565

• Williams, A., Althaus, F., MacIntosh, H., Loo, M., Gowlett-Holmes, K., Tanner, J E., Sorokin, S J., Green, M. (2018) Characterising the invertebrate megafaunal assemblages of a deep-sea (200–3000 m) frontier region for oil and gas exploration: the Great Australian Bight, Australia. Deep Sea Research Part II: Topical Studies in Oceanography, 157-158, pp 78-91. doi:10.1016/j.dsr2.2018.07.015

• Williams, A., Althaus, F., Pogonoski, J., Osterhage, D., Gomon, M., Graham, K., Appleyard, S A., Gledhill, D., Bray, D., McMillan, P. (2018) Composition, diversity and biogeographic affinities of the deep-sea (200–3000 m) fish assemblage in the Great Australian Bight, Australia. Deep Sea Research Part II: Topical Studies in Oceanography 157-158 pp 92-105. doi:10.1016/j.dsr2.2018.05.005

• Wiltshire, K H., Tanner, J E., Althaus, F, Sorokin, S J., Williams, A. (2018) 'Predicting environmental suitability for key benthic species in an ecologically and economically important deep-sea environment. Deep Sea Research Part II: Topical Studies in Oceanography', 157-158 pp 121-133. doi:10.1016/j.dsr2.2018.06.011

• van de Kamp, J., Hook, S E., Williams, A., Tanner, J E., Bodrossy, L. (2019) Baseline characterization of aerobic hydrocarbon degrading microbial communities in deep-sea sediments of the Great Australian Bight, Australia. Environmental Microbiology, 21: 1782-1797. doi:10.1111/1462-2920.14559

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Caveat: this event log was authored on the voyage using a standalone logging system called ELOG which has no linkages to any underway or GPS data feeds. For this reason, some positions are unknown and may be resolved using the logged time and the underway dataset for the voyage.

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