You are here

Filter feeder responses to dredging

Description: 

Defining thresholds and indicators of filter feeder responses to dredging-related pressures

Other Details: 

Dredging Science Program: Theme 6
Location: Pilbara and Kimberley
Project Leader: Muhammad Azmi Abdul Wahab, AIMS
Telephone: 6369 4043
Email: m.abdulwahab@aims.gov.au

FINAL REPORTS

Effects_of_Dredging_on_Filter_Feeders_Review_WAMSI_DSN_Report_6.1_Schönberg_2016_FINAL

Sponge Biogeography of WA_a review_WAMSI DSN Project 6.2 Fomont et al 2017

Comparisons of benthic filter feeder communities before_after large scale dredging program_WAMSI DSN Project 6.3_Abdul Wahab et al 2017

Photo catalogue of marine benthic diversity off Onslow (Pilbara Region of WA)_WAMSI DSN Project 6.3.1_Abdul Wahab et al

Effects of dredging related stressors on sponges_WAMSI DSN Project 6.4_Pineda et al 2017_FINAL

SUMMARY:

Coastal Western Australia (WA) has unique communities of dense and diverse filter feeders that are comparatively understudied and are not found anywhere else in the world. They provide immense bioservices within their habitats, including bentho-pelagic coupling, nutrient cycling, purification of vast water masses, 3-dimensional habitats, and support for a multitude of other important organisms. These communities are often dominated by sponges, a difficult taxonomic group that in WA contains many endemic or undescribed species.

Extensive dredging projects pose an environmental risk to local filter feeder communities through turbidity and light reduction, impediments to filtration organs and smothering by sedimentation. The present project aims to investigate the nature and thresholds of such risks.

The approach will be 4-pronged:

6.1 A review of available knowledge on sediment effects on sponges.

6.2 A synthesis of NWA sponge biogeographies.

6.3 Field surveys by underwater video and SCUBA at Chevron’s Wheatstone Project describing local filter feeding communities before and after exposure to dredging pressures, allowing insights into which growth forms, common taxa and feeding strategies will be most affected, thus informing, but also in part validating proposed aquarium work.

6.4 Controlled aquarium experiments testing pressure: response effects and thresholds of stressor combinations (turbidity, sedimentation, temperature) on different growth forms). Response values will include monitoring of smothering (e.g. surface lesions), shading (effects on symbionts), clogging of feeding apparatus (e.g. pumping activity, histology), increased expression of stress genes and shifts in feeding strategies (photo- vs. heterotrophy).

Through fieldwork in addition to laboratory experiments we will provide critical insights into local filter feeder communities and their responses to dredging pressures. Identifying relative impacts by different types of pressures in combination with thresholds and guidelines will assist stakeholders and managers alike in reducing risks and severity of impacts from dredging developments.

RESEARCH ARTICLES

Strehlow BW, Pineda M, Duckworth A, Kendrick GA, Renton M, Abdul Wahab MA, Webster NS, Clode PL. (2017) Sediment tolerance mechanisms identified in sponges using advanced imaging techniques. PeerJ 5:e3904 doi: 10.7717/peerj.3904

Abdul Wahab M.A, Fromont J, Gomez O, Fisher R, Jones R. (2017) Comparisons of benthic filter feeder communities before and after a large-scale capital dredging program Marine Pollution Bulletin doi.org/10.1016/j.marpolbul.2017.06.041

Pineda MC, Strehlow B, Sternel M, Duckworth A, Jones R, Webster N.S. (2017) Effect of suspended sediments on the sponge holobiont with implications for dredging management. Scientific Reports. doi:10.1038/s41598-017-05243-x

Pineda MC, Strehlow B, Sternel M, Duckworth A, den Haan J, Jones R, Webster N.S. (2017) Effects of sediment smothering on the sponge holobiont with implications for dredging management Scientific Reports 7, Article number: 5156 doi:10.1038/s41598-017-05243-x

Pineda MC, Strehlow B, Kamp J, Duckworth A, Jones R, Webster N.S. (2017) Effects of combined dredging-related stressors on sponges: a laboratory approach using realistic scenarios Scientific Reports doi:10.1038/s41598-017-05251-x

Pineda MC, Strehlow​ B.W., Duckworth A, Doyle J, Jones R, Webster N.S. Effects of light attenuation on the sponge holobiont- implications for dredging management Scientific Reports (2016) doi:10.1038/srep39038

Strehlow​ B.W., Jorgensen D, Webster N.S., Pineda MC, Duckworth A. Using a thermistor flowmeter with attached video camera for monitoring sponge excurrent speed and oscular behaviour PeerJ (2016) Dec DOI: 10.7717/peerj.2761

Fromont J, Abdul Wahab M.A, Gomez O, Ekins M,  Grol M, Norman Ashby Hooper J. (2016) Patterns of Sponge Biodiversity in the Pilbara, Northwestern Australia Diversity 2016, 8(4), 21; doi: 10.3390/d8040021

Lafratta A, Fromont J, Speare P, Schönberg C (Feb 2016) Coral bleaching in turbid waters of north-western Australia Marine and Freshwater Research doi.org/10.1071/MF15314

C.H.L. Schönberg (Sept 2015) Happy relationships between marine sponges and sediments – a review and some observations from Australia Journal of the Marine Biological Association of the United Kingdom DOI: http://dx.doi.org/10.1017/S0025315415001411

M.C. Pineda, A Duckworth, N Webster (Jan 2015) Appearance matters: sedimentation effects on different sponge morphologies Journal of the Marine Biological Association of the United Kingdom DOI: http://dx.doi.org/10.1017/S0025315414001787

C.H.L. Schönberg (Dec 2014) Self-cleaning surfaces in sponges Marine Biodiversity DOI: 10.1007/s12526-014-0302-8
 

PRESENTATIONS

Abdul Wahab M.A  et al. Sponges of the Pilbara – a biodiversity hotspot. 2017 WAMSI Research Conference (audio) (Presentation slides) Video 1: Sponges dominate filter feeder communities in the Pilbara Video 2: Sponge Gardens of Ningaloo Reef

Pineda MC, Strehlow B, Duckworth A, Jones R (2017) Pressure-response relationships of sponges to dredge pressures – a laboratory approach. 10th World Sponge Conference. Sponges & their Environment ABSTRACT

Strehlow B, Pineda MC,  Duckworth A, Clode P, Webster N (2017) Sub-lethal stress responses of sponges to dredging pressures. 10th World Sponge Conference. Sponges & their Environment. ABSTRACT

Abdul Wahab M.A., Fromont J, Gomez O, Fisher R, Jones R (2017) Effects of dredging on benthic filter feeding communities. 10th World Sponge Conference. Ecosystems & Environment. ABSTRACT

Abdul Wahab MA, den Haan J, Doyle J, Duckworth A, Fisher R, Fromont J, Gomez O, Grol M, Hooper JNA, Jones R, Jorgensen D, Kamp J, Pineda MC, Schönberg C, Strehlow B, Strenel M, Webster N (2017) Defining thresholds and indicators of sponge response to dredging – Synthesis of knowledge and considerations for management. 2017 WAMSI Research Conference, Perth, Western Australia.

Abdul Wahab MA, Fromont J, Gomez O, Fisher R, Jones R (2017) Comparisons of benthic filter feeder communities before and after a large-scale capital dredging program. 2017 WAMSI Research Conference, Perth, Western Australia.

Abdul Wahab MA, Fromont J, Gomez O, Ekins M, Grol M, Hooper JNA (2017) Sponges of the Pilbara – a biodiversity hotspot. 2017 WAMSI Research Conference, Perth, Western Australia.

Webster N, Schönberg C, Fromont J, Gomez O, Duckworth A, Abdul Wahab MA, Strehlow B, Clode P, Speare P, Ekins M, Hooper J, Büttner EE, Siebler F, Pineda MC (2015) Theme 6 Overview, Defining thresholds of filter feeder response to dredge pressures. 2015 WAMSI Research Conference Perth.

Abdul Wahab MA, Gomez O, Speare P, Büttner EE,  Siebler F,  Fromont J,  Schönberg C (2015) Observations from pre-dredging surveys of filter feeders at Onslow, Western Australia.  2015 WAMSI Research Conference Perth.

Fromont J, Schönberg CHL, Speare P, Gomez O, Büttner E, Siebler F (2013) Sponges in a dust cloud: dredging-related pressures in NW Australia. 9th World Sponge Conference Fremantle Nov 2013

Strehlow B, Pineda MC, Clode P, Duckworth A, Kendrick G, Renton M, Webster N (2015) Understanding the effects of dredging on sponges. 2015 AIMS@JCU Student Seminar Day, Townsville, Queensland.

Strehlow B, Pineda MC, Clode P, Duckworth A, Kendrick G, Renton M, Webster N (2015) The secret lives of sponges. Three minute presentation for the AIMS Open Day 2015, Townsville, Queensland.

Strehlow B, Pineda MC, Clode P, Duckworth A, Kendrick G, Renton M, Webster N (2015) Identifying, characterising and quantifying the effects of dredging on sponges. Australian Coral Reef Society Conference, Daydream Island, Queensland.

Strehlow B, Clode P, Duckworth A, Kendricks G, Pineda MC, Renton M, Webster N (2015) Identifying, characterising and quantifying the effects of dredging on sponges (Porifera). 2015 WAMSI Research Conference Perth.

Pineda MC, Webster N, Duckworth A, Strehlow B (2015) Deriving pressure-response relationships of sponges to dredge pressures – a laboratory approach. 2015 WAMSI Research Conference Perth.

Pineda MC, Strehlow B, Duckworth A, Webster N (2014) Appearance matters: The effects of simulated dredging-related pressures on different sponge species and morphologies (oral) 2nd International Symposium on Sponge Microbiology, Baltimore (United States) Oct 2014

Pineda MC, Strehlow B, Duckworth A, Webster N (2014) Sponge responses to dredging-related pressures (oral) XVIII Iberian Marine Biology Symposium, Gijon (Spain) Sept 2014

Duckworth A, Jorgensen D, Schönberg CHL, Webster N, Negri A (2013) Environmental impacts on sponge pumping measured using a micro-thermistor (speed talk) 9th World Sponge Conference Fremantle (Australia) Nov 2013
 

POSTERS

Fromont J, Abdul Wahab M.A., Gomez O, Ekins Merrick, Goverdina Geerruida Grol M, Hooper J.N.A. (2017) North-western Australia: a sponge biodiversity hotspot. 10th World Sponge Conference ABSTRACT

Strehlow BW, Jorgensen D, Pineda MC, Webster N,  Duckworth A. 2016. Heart-less pulses: measuring sponge pumping rates. 13th International Coral Reef Symposium, Honolulu (USA); and AIMS@JCU Student Seminar Day, Townsville, Queensland (Australia).

Strehlow B, Pineda MC, Clode P, Duckworth A, Kendrick G, Renton M, Webster N (2014) Where does the sediment go? Visualising sediments in sponges using micro-computed tomography (micro-CT) scanning. 2014 AIMS@JCU Student Seminar Day.

Pineda MC, Duckworth A, Webster N (2013) Preliminary assessment of sponge responses to dredging-related pressures (poster). http://f1000.com/posters/browse/summary/1094662 9th World Sponge Conference Fremantle (Australia) Nov 2013