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P:\SouthernPorts\1208_PortAlbanyMaintDredging\001_OriginalScope\Reports\ReportFolder_EnvironmentalMonitoring\AlbanyPorts2015MaintDredging_EnvMon_1208_Rev0_20150729.docm
Maintenance Dredging 2015 Environmental Monitoring Report
Prepared for
Southern Ports Authority
Prepared by
BMT Oceanica Pty Ltd
July 2015
Report No. 1208_001/1_Rev0
Client: Southern Ports Authority
Document history
Distribution
Revision Author Recipients Organisation No. copies
& format Date
A J. Anderson L. Twomey BMT Oceanica 1 x docm 21/07/2015
B J. Anderson L. Twomey BMT Oceanica 1 x docm 22/07/2015
C J. Anderson R. Hillman BMT Oceanica 1 x docm 23/07/2015
D J. Anderson R. Goetze Southern Ports Authority 1 x pdf 23/07/2015
0 J. Anderson R. Goetze Southern Ports Authority 1 x pdf 29/07/2015
Review
Revision Reviewer Intent Date
A L. Twomey Technical review 21/07/2015
B L. Twomey Editorial review 22/07/2015
C R. Hillman Administrative review 23/07/2015
D R. Goetze Client review 24/07/2015
Quality Assurance
BMT Oceanica Pty Ltd has prepared this report in accordance with our Health Safety Environment
Quality Management System, certified to ISO 9001: 2008.
Status
This report is 'Draft' until approved for final release, as indicated below by inclusion of signatures from: (i) the author
and (ii) a Director of BMT Oceanica Pty Ltd or their authorised delegate. A Draft report may be issued for review with
intent to generate a 'Final' version, but must not be used for any other purpose.
Approved for final release:
Author Director (or delegate) Date: 29/07/15 Date: 29/07/15
Disclaimer
This report has been prepared on behalf of and for the exclusive use of Southern Ports Authority, and is subject to and
issued in accordance with the agreed terms and scope between Southern Ports Authority and BMT Oceanica Pty Ltd.
BMT Oceanica Pty Ltd accepts no liability or responsibility for it in respect of any use of or reliance upon this report by
any third party.
Copying this report without prior written consent of Southern Ports Authority or BMT Oceanica Pty Ltd is not permitted.
© Copyright 2015 BMT Oceanica Pty Ltd
BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report i
Contents
Acronyms ................................................................................................................................... iii
Executive Summary ................................................................................................................... v
1. Introduction ....................................................................................................................... 1
1.1 Environmental approvals ...................................................................................... 1
1.2 Potential environmental impacts .......................................................................... 3
1.3 Purpose of document ............................................................................................ 3
1.4 Objectives .............................................................................................................. 3
2. Methods ............................................................................................................................. 4
2.1 Turbidity plumes .................................................................................................... 4
2.1.1 Secchi disc monitoring .................................................................................. 4
2.1.2 Visual record of turbidity plumes ................................................................... 4
2.1.3 Seagrass epiphyte monitoring ...................................................................... 4
2.2 Marine fauna ........................................................................................................... 5
2.2.1 Trained observers ......................................................................................... 5
2.3 Introduced marine species .................................................................................... 5
3. Results ............................................................................................................................... 7
3.1 Turbidity monitoring .............................................................................................. 7
3.1.1 Remote imagery units ................................................................................... 8
3.1.2 Seagrass epiphyte monitoring ...................................................................... 8
3.1.3 Marine fauna ................................................................................................ 8
4. Summary and discussion ............................................................................................... 10
5. References ....................................................................................................................... 11
ii BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report
List of Figures
Figure 1.1 Albany Port harbour basin, entrance channel and disposal area ........................... 2
Figure 2.1 Turbidity and seagrass monitoring sites for the 2015 maintenance dredging
campaign .............................................................................................................. 6
List of Tables
Table 2.1 Secchi disc depth and seagrass epiphyte loading monitoring sites ....................... 5
Table 3.1 Dates of completed environmental monitoring during dredging campaign ............. 7
Table 3.2 Water clarity monitoring (secchi disc depth) as part of the 2015 maintenance
dredging campaign ................................................................................................ 7
Table 3.3 Seagrass epiphyte loading monitoring as part of the 2015 maintenance
dredging campaign ................................................................................................ 8
Table 3.4 Observations of marine mammals during dredging operations .............................. 9
List of Appendices
Appendix A Remote imagery photo examples
Appendix B Seagrass epiphyte loading photo examples
Appendix C Marine mammal observation logs
BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report iii
Acronyms
APA Albany Port Authority, now part of SPA
AQIS Australian Quarantine Inspection Service
CS Control Site
DoE Commonwealth Department of the Environment
DoF Western Australian Department of Fisheries
DoW Western Australian Department of Water
EIA Environmental impact assessment
EPA Environmental Protection Authority
EPBC Environment Protection and Biodiversity Conservation
IMS Introduced Marine Species
IS Inner Site
LoR Limit of reporting
MMO Marine mammal observer
OEPA Western Australian Office of the Environmental Protection Authority
OS Outer Site
QA/QC Quality assurance and quality control
SAP Sampling and Analysis Plan
SPA Southern Ports Authority
WA Western Australia
BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report v
Executive Summary
Southern Ports Authority commissioned maintenance dredging within the Port of Albany in
June 2015 to remove high spots in the entrance channel and harbour basin to reinstate the
declared navigation depths.
BMT Oceanica undertook environmental monitoring during the maintenance dredging program to
fulfil the environmental commitments made by the Southern Ports Authority.
The monitoring program included the following components:
1. Monitoring of the dredging turbidity plumes through:
i. Measuring water clarity with a Secchi disc
ii. Capturing a visual record of turbidity plumes within the harbour basin to record the
distribution of plume movement over time to assist with planning for future dredging
campaigns
iii. Visually assessing any change on epiphyte loading in seagrass meadows.
2. Mitigation of potential vessel impact with whales and other protected marine fauna by
completing marine mammal observer training of the maintenance dredging vessels crew for
cetacean impact avoidance measures
3. Reducing the potential for introduced marine species from dredging operations by consulting
with Western Australian Department of Fisheries (DoF) on appropriate steps to risk assess
potential pest vectors
4. Reporting on Secchi disc depth (i.e. water clarity) and seagrass epiphyte loading monitoring
results (this report).
All of the environmental commitments outlined in the EIA (BMT Oceanica 2014) were satisfied by
the Albany Port 2015 maintenance dredging environmental monitoring, which included:
There were no exceedances of turbidity. Monitoring of water clarity through secchi disc depth
measurements found short lived decreases in water clarity and these were limited to harbour
and near the harbour entrance sites (IS1-4 and OS1).
Minor differences occurred in seagrass epiphyte loading at sites CS1 (decreased) and OS7
and OS8 (increased), while sites OS5 and OS6 had no change.
Three remote imagery units were deployed for a period of up to 28 days, which resulted in
collection of over 3,000 photos of the maintenance dredging operation. The information may
be useful to inform decision making for future dredging campaigns.
The potential impacts to marine fauna from vessels were managed through comprehensive
marine mammal observation training. A total of 53 Humpback whale adults and nine calves
were observed by the dredge vessel crew during the dredging operations. Approximately
seven hours of shutdown time was required for impact avoidance procedures, but no impacts
to marine mammal were recorded.
The risk of IMS incursion was determined to be low by Department of Fisheries due to the
recent dry docking of the dredge vessel and associated support vessels.
BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report 1
1. Introduction
The Port of Albany is located on the southern coast of Western Australia with infrastructure in
Princess Royal Harbour and King George Sound (Figure 1.1). Southern Ports Authority (SPA)
was required to undertake maintenance dredging to remove high spots within the Port of Albany
entrance channel and harbour basin, to reinstate the declared navigation depths.
Dredging commenced on 31 May at 1400 and works were completed on 15 June 2015.
Additional sweep bar works continued until 19 June 2015. Dredging works were completed with
a Trailer Suction Hopper Dredge, the River Bee, operated by WA Dredging. Southern Ports
Authority was authorised to dispose of 82,400 m3 of dredged material to an offshore disposal
area (G7 Figure 1.1), in accordance with sea dumping permit SD2014/2902. The total volume
dredged during the campaign was calculated to be 52,482 m3, which was significantly less than
the amount approved.
1.1 Environmental approvals
Environmental approvals for the 2015 maintenance dredging works consisted of:
EPBC referral
Licence to Dredge and Reclaim
Sea Dumping permit
The maintenance dredging works were not considered to be a controlled action and EPBC
approval was provided by Department of Environment (DoE) on 17 July 2014 (EPBC 2014/7246).
An application for a Licence to Dredge and Reclaim was submitted to Western Australia (WA)
Department of Water on 17 June 2014. The works were directly referred to the OEPA and the
outcome was ‘Not Assessed – Public Advice Given (Dated 8 Sept 2014). The Western Australia
Department of Water issued a Licence to Dredge and Reclaim on 14 November 2015.
Sea Dumping permit (No. SD2014/2902) was granted by DoE on 2 December 2014 for up to
82,400 m3 of dredging materials for disposed at site (G7) in King George Sound (Figure 1.1).
Potential environmental impacts were assessed in the Albany Port Authority Maintenance
Dredging Program Environmental Impacts Assessment (EIA) report (BMT Oceanica 2014a).
These potential impacts were assessed based on data presented in the Albany Port Authority
Maintenance Dredging Program Sediment Sampling and Analysis Implementation report
(BMT Oceanica 2014b).
2 BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report
Figure 1.1 Albany Port harbour basin, entrance channel and disposal area
BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report 3
1.2 Potential environmental impacts
A number of key potential impacts for the 2015 maintenance dredging campaign were identified
in the EIA which included:
turbidity
mobilisation of contaminants and nutrients
hydrocarbon spills
noise
vessel movements
threatened or migratory species
introduced marine species
waste management
impacts to other users
exposure to contaminants.
The potential impacts were risk assessed and management actions were developed to mitigate
the risks. The risk assessment identified three environmental issues for monitoring during the
dredging campaign, including:
turbidity
migratory species (marine mammals)
introduced marine species.
1.3 Purpose of document
This document presents the results of the environmental monitoring requirements of the Albany
Port Authority Maintenance Dredging Program Environmental Impacts Assessment report.
1.4 Objectives
Requirements of the Albany Port Authority Maintenance Dredging Program Environmental
Impacts Assessment (BMT Oceanica 2014a) were:
1. Monitoring of the dredging turbidity plumes through:
i. Measuring water clarity with a secchi disc
ii. Capturing a visual record of turbidity plumes within the harbour basin to record the
distribution of plume movement over time to assist with planning for future dredging
campaigns
iii. Visually assessing any change on epiphyte loading in seagrass meadows.
2. Mitigating potential of vessel to impact with whales and other protected marine fauna by
completing marine mammal observer training for vessel crew for cetacean impact avoidance
measures
3. Reducing the potential for introduced marine species from dredging operations by consulting
with Western Australian Department of Fisheries (DoF) on appropriate steps to risk assess
potential pest vectors
4. Reporting on secchi disc depth (i.e. water clarity) and seagrass epiphyte loading monitoring
results (this report).
4 BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report
2. Methods
2.1 Turbidity plumes
Turbidity of the dredging plumes were monitored with the following methods:
1. Measurement of water clarity with a secchi disc
2. Capture of a visual record of turbidity plumes within the harbour basin using remote imagery
units to record the distribution of plume movement over time to assist with planning for future
dredging campaigns
3. Visual assessment of any change on epiphyte loading in seagrass meadows.
2.1.1 Secchi disc monitoring
Dredging was completed within two weeks and turbidity was monitored in case there was an
unexpected extension of the dredging program. Turbidity was monitored using Secchi depth as a
proxy for water quality (i.e. water clarity) at five ‘inner sites’, eight ‘outer sites’ and one ‘control
site’ (Table 2.1 and Figure 2.1). Monitoring was undertaken by recording the Secchi depth, which
was conducted by lowering the Secchi disc through the water column and estimating the depth
that the white and black quarters of the Secchi disc were still distinguishable. Secchi depths
were monitored pre-dredging and after dredging for contextual information. During dredging a
staged trigger and action approach was employed, as follows:
1. Secchi disc monitoring was carried out twice weekly at all sites during dredging
2. If the Secchi depth at one or more of the outer sites was below 4 m (8 m for sites OS7 and
OS8) while the Secchi depth at site CS1 remained above 4 m, monitoring increase to daily
3. If Secchi depths remained below 4 m (8 m for sites OS7 and OS8) at one or more outer sites
on three consecutive days while site CS1 remained above 4 m then dredging will cease until
Secchi depths were greater than 4 m at all outer sites (8 m for sites OS7 and OS8).
2.1.2 Visual record of turbidity plumes
A visual record of turbidity plumes was recorded within the harbour basin using two remote
imagery units (i.e. time lapse cameras). Harbour camera 1 faced east and collected images of
the entrance channel. Harbour camera 2 faced southwest and collected images of the inner
harbour basin area. An additional time lapse camera was mounted on the stern of the dredge
vessel to collect further information on the turbidity plumes during the campaign. Images were
taken every 15 minutes from sunrise to sunset each day.
2.1.3 Seagrass epiphyte monitoring
Seagrass epiphyte loading was monitored to document any potential effect of nutrient release on
epiphyte growth. Photographs of the seagrass meadows were taken in ten randomly placed
20 x 20 cm quadrats, one week prior to, once during, and one week after dredging at the control
sites and each of the outer sites with seagrass (CS1, OS5, OS6, OS7 and OS8) (Table 2.1 and
Figure 2.1). Epiphyte cover was visually assessed from photographs and qualitatively classified
as low, medium or high density by a local seagrass expert.
BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report 5
Table 2.1 Secchi disc depth and seagrass epiphyte loading monitoring sites
Site Description Type Location (GDA94 UTM 50)
Easting Northing
IS1 Inner Site Secchi disc 581189 6122602
IS2 Inner Site Secchi disc 581810 6122071
IS3 Inner Site Secchi disc 582488 6121452
IS4 Inner Site Secchi disc 582893 6121888
IS5 Inner Site Secchi disc 584587 6122043
OS1 Outer Site Secchi disc 581322 6122247
OS2 Outer Site Secchi disc 580438 6121720
OS3 Outer Site Secchi disc 581536 6120946
OS4 Outer Site Secchi disc 582724 6121301
OS5 Outer Site Secchi disc
Seagrass epiphyte 583113 6121558
OS6 Outer Site Secchi disc
Seagrass epiphyte 583117 6121903
OS7 Outer Site Secchi disc
Seagrass epiphyte 584336 6121669
OS8 Outer Site Secchi disc
Seagrass epiphyte 584374 6121495
CS1 Control Site Secchi disc
Seagrass epiphyte 580479 6122764
2.2 Marine fauna
Risks to marine fauna from vessel impacts were managed by mitigating potential of vessel to
impact with whales and other protected marine fauna by the vessel crew completing marine
mammal observer training for cetacean impact avoidance measures.
2.2.1 Trained observers
The River Bee vessel crew attended a one day marine mammal observer (MMO) course on
27 May 2015. This course was taught by Rochelle Desmond of BMT Oceanica who has
extensive experience in marine mammal observation work. The course included regulatory and
operational aspects of interactions with marine fauna at sea. Learning aids were provided and
included a training manual and marine fauna field guide. Training also included examples of:
vessel pre-start checklists, observation recording forms, MMO summary sheets, reporting chain,
and auditing procedures.
2.3 Introduced marine species
Risks of marine pest introductions were managed by reducing the potential for introduced marine
species (IMS), from dredging operations; by consulting with DoF on appropriate steps to risk
assess potential pest vectors. Due to the recent dry dock history (May 2015) of the River Bee, an
IMS low risk approval application was submitted to the Marine Biosecurity branch of DoF on
20 May 2015. Further to this, additional IMS low risk approval applications were submitted for the
dredging support vessels (Flinders Bay, Total Assist and Total Response) on 25 May 2015. DoF
approved the designation of low risk for the vessels on 27 May 2015 and no further actions were
required for IMS relating to the vessels hulls.
6 BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report
Figure 2.1 Turbidity and seagrass monitoring sites for the 2015 maintenance dredging
campaign
BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report 7
3. Results
Field survey monitoring of secchi depths and seagrass epiphytes was completed by Bastyan &
Associates. Survey dates for each secchi depth and seagrass epiphyte monitoring event are
listed in Table 3.1.
Table 3.1 Dates of completed environmental monitoring during dredging campaign
Date Campaign stage Monitoring action Sites
25 May 2015 Pre-dredging Secchi disc All
Seagrass epiphytes CS1, OS5, OS6, OS7 and OS8
4 June 2015 Week 1 dredging Secchi disc All
7 June 2015 Week 1 dredging Secchi disc All
8 June 2015 Week 1 dredging Seagrass epiphytes CS1, OS5, OS6, OS7 and OS8
10 June 2015 Week 2 dredging Secchi disc All
12 June 2015 Week 2 dredging Secchi disc All
24 June 2015 Post dredging Secchi disc All
Seagrass epiphytes CS1, OS5, OS6, OS7 and OS8
Remote imagery units were installed on port infrastructure within the inner harbour and on the
dredge vessel on 27 May 2015. Units were removed from the dredge vessel on 22 June and
from the harbour infrastructure on 25 June 2015.
3.1 Turbidity monitoring
Water clarity was monitored once prior to dredging, four times during dredging and once after
dredging as part of the environmental monitoring of the dredging campaign (Table 3.2). No
additional monitoring was required as minimal visual depth triggers were never reached or
exceeded. Site OS2 was recorded as >3.9 m on 4 June, but this measurement represented the
secchi disc on the seabed and thus visibility had not been reduced.
Table 3.2 Water clarity monitoring (secchi disc depth) as part of the 2015 maintenance
dredging campaign
Site Description
Minimum
depth
trigger (m)
Secchi disc depth (m)
25 May 4 June 7 June 10 June 12 June 24 June
IS1 Inner Site 4 >11.8 9.0 4.7 7.9 10.0 5.5
IS2 Inner Site 4 >10.5 >10 4.5 7.5 10.0 9.5
IS3 Inner Site 4 >10.8 9.5 9.5 7.0 9.1 9.7
IS4 Inner Site 4 >11.5 10.0 10.5 7.2 9.8 9.2
IS5 Inner Site 4 >11.2 9.8 >10.8 >11.0 >11.3 >11.0
OS1 Outer Site 4 >7.3 >7.5 4.5 6.5 >7.5 >7.5
OS2 Outer Site 4 >4.0 >3.9 >4.1 >4.1 >4.2 >4.1
OS3 Outer Site 4 >6.0 >5.7 >5.6 >6.0 >6.3 >5.7
OS4 Outer Site 4 >6.2 >6.0 >6.0 >5.8 >6.4 >5.8
OS5 Outer Site 4 >5.6 >5.4 >5.4 >5.4 >5.9 >5.8
OS6 Outer Site 4 >6.2 >5.6 >5.6 >5.6 >6.4 >6.1
OS7 Outer Site 8 >12.4 >12.2 >12.4 >12.5 >12.8 >12.1
OS8 Outer Site 8 >13.0 >13.2 >13.0 >12.6 >13.2 12.3
CS1 Control Site >4 >4.2 4.1 4.0 4.5 4.7 4.5
Note:
1. Data with > indicates secchi disc was visible on seabed
8 BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report
3.1.1 Remote imagery units
The remote imagery units captured more than 3,000 photos throughout the dredging campaign.
Although photo quality varied due to weather conditions, refraction from sea surface and
limitations of available light, hundreds of photos were collected. The photos have provided
valuable information on plume distribution and dispersion within the harbour basin, which may be
useful to inform decisions for future dredging campaigns. The images revealed surface plumes
of sediments with proximity to dredging and disposal. In general, the photos revealed relatively
small turbidity plumes which were short lived, particularly in the entrance channel. The harbour
turbidity plumes were a darker colour and appeared to remain slightly longer. Example photos
are found in (Appendix A).
3.1.2 Seagrass epiphyte monitoring
Seagrass epiphyte monitoring was completed three times as part of the dredging campaign
(Table 3.3). Some slight differences in seagrass epiphyte loading were noted amongst surveys.
Representative photos of sites during each survey are provided in Appendix B. Changes include
a decrease of epiphytes at the control site during the post dredging survey, and a slight increase
in epiphytes at OS7 and OS8. No noticeable change occurred at sites OS5 and OS6.
Table 3.3 Seagrass epiphyte loading monitoring as part of the 2015 maintenance
dredging campaign
Site Description Depth (m) Seagrass epiphyte loading (density)
25 May 8 June 24 June
CS1 Control Site 4.0 High High Medium
OS5 Outer Site 5.5 Low Low Low
OS6 Outer Site 6.0 Low Low Low
OS7 Outer Site 12.5 Low Low Medium
OS8 Outer Site 12.5 Low Low Medium
3.1.3 Marine fauna
Marine mammal observations were completed by the River Bee vessel crew during hours of
dredging operations (see Appendix C for logs). Marine mammal observers continually monitored
for marine mammals during dredging operations and marine mammal sightings were recorded on
an hourly basis. Additionally, a minimum of five minutes of visual observation for marine
mammals was completed prior to operations daily start up and a 20 minute observation period
(with the aid of binoculars) prior to the commencement of dumping activities. A total of 53
Humpback whale adults, nine Humpback calves and two seals were observed by the vessel crew
during dredging operations (Table 3.4). Although most marine mammals were not within the
300 m operations exclusion zone, approximately seven hours of shut down time was required
during the campaign as part of the cetacean impact avoidance stop work and continuation
procedures.
BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report 9
Table 3.4 Observations of marine mammals during dredging operations
Date Humpback whale adult Humpback whale calves Other mammal Required shutdown
time (hr)
31 May 2015 - - - 0
1 June 2015 - - - 0
2 June 2015 - - - 0
3 June 2015 - - 2 seals 0
4 June 2015 5 - - 1
5 June 2015 - - - 0
6 June 2015 - - - 0
7 June 2015 - - - 0
8 June 2015 - - - 0
9 June 2015 - - - 0
10 June 2015 28 5 - 6
11 June 2015 14 2 - 0
12 June 2015 - - - 0
13 June 2015 2 1 - 0
14 June 2015 4 1 - 0
15 June 2015 - - - 0
Total 53 9 2 7
10 BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report
4. Summary and discussion
All of the environmental commitments outlined in the EIA (BMT Oceanica 2014) were satisfied by
the Albany Port 2015 maintenance dredging environmental monitoring. The key results included:
There were no exceedances of turbidity. Monitoring of water clarity through secchi disc depth
measurements and seagrass epiphyte loading resulted in no exceedances. Secchi disc
depth measurements found short lived decreases in water clarity and these were limited to
the harbour and near the harbour entrance sites (IS1-4 and OS1). Slight differences occurred
in seagrass epiphyte loading at sites CS1 (decreased) and OS7 and OS8 (increased) but no
change was noted at sites OS5 and OS6.
Three remote imagery units were deployed for a period of up to 28 days, which resulted in
collection of over 3,000 photos of the maintenance dredging operation. The information may
be useful to inform decision making for future dredging campaigns.
The risk of IMS incursion was determined to be low by Department of Fisheries due to the
recent dry docking of the dredge vessel and associated support vessels.
The potential impacts to marine fauna from vessels were managed through comprehensive
marine mammal observation training supplied by BMT Oceanica. A total of 53 Humpback
whale adults and nine calves were observed during the dredging operations. Approximately
seven hours of shutdown time was required due to impact avoidance procedures, but no
impacts to marine mammals were recorded.
BMT Oceanica: Southern Ports Authority: Maintenance Dredging 2015 Environmental Monitoring Report 11
5. References
BMT Oceanica (2014a) Albany Port Authority Maintenance Dredging Program: Environmental
Impact Assessment. Prepared for Albany Port Authority by BMT Oceanica Pty Ltd, Report
No. 812_01_002/2_Rev1, Perth, Western Australia, August 2014
BMT Oceanica (2014b) Albany Port Authority Maintenance Dredging Program – Sediment
Sampling and Analysis Implementation. Prepared for Albany Port Authority by BMT
Oceanica Pty Ltd, Report No. 812_01_002/1_Rev0, Perth, Western Australia, May 2014
Recommended