Lindsay Collins

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WAMSI NORTH WEST MARINE SCIENCE SYMPOSIUM

21 February 2013

WA Maritime MUSEUM

CURTIN’S NORTHWEST MARINE RESEARCH

CMST, Remote Sensing, Department of Applied Geology,

Agriculture and Environment Departments/Centres

CENTRE FOR

MARINE SCIENCE AND

TECHNOLOGY (CMST)

• WA IMOS (Integrated Marine

Observing System): collect ocean noise data sets to link with various physical, biological, man-made and climate driven processes

• Dolphin acoustics in the northwest (WAMSI II project: joint project with Murdoch)

• Acoustic assessment of habitat and abundance in the Northern Demersal

Scalefish Fishery

• Sydney/Kormoran Project: To create an immersive, virtual museum experience using deep sea imagine of the story of two ships that sank each other in 1941 (collaboration with UWA)

WWW.CMST.CURTIN.EDU.AU

An acoustic assessment of habitat and abundance in the Northern

Demersal Scalefish Fishery – FRDC Project 2011/022

Collaborators: CMST, Curtin; Kimberley Wildcatch, Licensee; Department of Fisheries, WA

Methods:

Attach a multifrequency (18, 38,

120 and 200 kHz) scientific, splitbeam sonar system to a commercial vessel and collect acoustic backscatter during routine operations.

Objectives:

1. Characterise seafloor habitat associated with high fish abundance and fishing effort distribution;

2. Identify possible locations of significant biomass outside current areas of commercial effort;

3. Determine relative demersal fish biomass and investigate changes through time.

To date:

1. >15,000 km of acoustic data collected.

2. Video ground-truth data on habitat and fish.

3. Observed spatial relationships for acoustic habitats and in-water biomass.

WAMSI II Project 1.2.4 Distribution, abundance and genetic connectivity of

Australian snubfin and humpback dolphins across the Kimberley

Murdoch University, Australian National University & Curtin University joint project

Aims

• Carry out concurrent passive acoustic and visual observations of dolphins

• Correlate acoustic and visual detection rates and behaviour

• Integrate both acoustic and visual data to validate species presence and correlate with relative abundance

• Investigate geographic variation of humpback and snubfin vocalisations.

Locations

Roebuck Bay, Cygnet Bay and Beagle Bay

Begins

April 2013

Courtesy of Deborah Thiele

Montara Oil Spill, Timor Sea

Aug – Oct 2009

Scientific Studies

Fish health assessed by biochemical measurements in various organs

Ecotoxicology Group, Curtin University

Four fish samplings conducted:

Nov 2009-Nov 2011

(total 90 days at sea)

Results show trend towards recovery by

2011

Full Report available on SEWPaC website http://www.environment.gov.au/coasts/oilspil l/scientific-monitoring.html#four

Environmental costs of

PFW discharge from offshore facilities

fish health

- growth

- bioaccumulation

- geographical extent of impact

- 2013 onwards

Ecotoxicology Group, Curtin University

http://geology.curtin.edu.au/

WAMSI II Project 1.3.1

Growth history of Coral reefs of the Kimberley region

Description of macrotidal reefs:

• Remote sensing and ground truth

• Seismic mapping

• Holocene sea level curve and climate history

– reef building communities

– chronology and growth patterns

– History of sea level: oceanographic and biological evolution; substrate/reef growth interactions

http://geology.curtin.edu.au/

WAMSI II Project 1.3.1

Growth history of Coral reefs of the Kimberley region

Description of macrotidal reefs:

• Remote sensing and ground truth regional geomorphology growth patterns and substrates of inshore reefs

© A. Sandes. Montgomery Reef

http://geology.curtin.edu.au/

WAMSI II Project 1.3.1

Growth history of Coral reefs of the Kimberley region

Description of macrotidal reefs:

• Remote sensing and ground truth

• Seismic mapping

Collins et al., 2010

http://geology.curtin.edu.au/

WAMSI II Project 1.3.1

Growth history of Coral reefs of the Kimberley region

Description of macrotidal reefs:

• Remote sensing and ground truth

• Seismic mapping

• Holocene sea level curve and climate history

Holocene highstand at 6ka

(+0.7/2.5m, Nakada & Lambeck, 1989 )

Present SL

Stable

Holocene

Highstand

Transgression

LGM Lowstand

Twiggs & Collins,

2010

http://geology.curtin.edu.au/

WAMSI II Project 1.3.1

Drowning History

• Kimberley wide database of reefs: classification based on Hopley et al (2007).

• Types of morphology differ distinctly from eastern

Australian reefs

Juvenile

Montgomery Reef

Mature

Senile

Contacts

• CMST: Chandra Salgado Kent

C.Salgado@cmst.curtin.edu.au

• Curtin University, Department Environment and

Agriculture: Monique Gagnon

M.Gagnon@curtin.edu.au

• Curtin University, Department of Applied

Geology: Lindsay Collins L.Collins@curtin.edu.au

• Curtin University, Remote Sensing and Satellite

Research Group: Peter Fearns

P.Fearns@exchange.curtin.edu.au

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