Original source · versioned page text
2019-11-28 SM Agenda - Item 1 - Attachment 1 - Draft Noosa River Plan
Text sections have not been matched to the original PDF pages. Use the original document to check page numbers.
Plans and drawings
This document appears to be plans or drawings. Its page text below holds only the words printed on the drawings, without the drawings themselves, so it may be jumbled or hard to follow. To see the plans as drawn, choose Original above or download the file (both need you to log in).
Log in to see the plans as drawn��������������� ere also smaller in The likely cause of sediment in the riv�������� Barriers to fish passage • Comprehensiv����� veys and assessment of
2018, with many samples only containing a few within the upper catchment, especially areas such as known and new barriers.
individuals. This large decline triggered a resampling Kin Kin Creek where riparian habitat is not as complete The Noosa River is recognised as important habitat
regime in November 2018 which coincided with spring as in other areas of the catchment. Sediment would for commercially and recrea�������� an��� ���������� t iden��������� s using
recruitment of many benthic species with invertebrate take many years t�� w thr������ erent lakes species such as sea mullet, tailor, trevally, g���� criteria based on c�������� th, stream class and
larv��������������� �ort (i.e. the number systems before it gets to the Noosa estuary and dart, br���� �������� , and is a stronghold habitat quality.
of samples at each loca��� as increased three-fold. ����� oposed in the River Plan to address these refuge for threatened species such as the Honey Blue-
Twenty-nine of these barriers were further
issues will likely take many years to sho����� ant eye, Oxleyan Pygmy Perch and Estuary Ray.
November’s sampling resulted in more species found, inves�ated using detailed site data and a rapid
improvements. There is also likely some localised
however many occurred as single individuals (or rare Fish require passage throughout the river system as appraisal and assessment, followed by a cost-bene��
impacts from rural roads, stock accessing waterways,
species) despite the increased sampling e�ort. With part of their life cycles for the purposes of breeding analysis of remedia�����V tructure. Twelve (12)
and poor erosion and sediment control for development
DRAFT
the individual or rare species excluded, the 2018 and spawning, feeding, juvenile migra���� edator barriers scored the highest, indica������� ant
�������� t to the river.
sampling regime iden�������� verall decline in avoidance, and territorial behaviour. lev�������� e outcomes and cost-bene��
benthic fauna in the Noosa River compared to the 1998 The regular resuspension of sediment is poten��� e��� eness through remedia��������� s
sampling (Skilleter et al, 2018). caused by sever������� Man-made structures such as weirs, culverts, include a weir in Kin Kin Creek, a damming structure
causeways, bridges and dams can f������� in Cranks Creek and 10 culverts located throughout
The benthic study has iden������ stan������ • Some of the lakes are now so shallow that general complete barrier����������� vement. This the catchment’s freshwater tributaries.
in the abundance and diversity of benthic fauna in the wind and wav������ oss the lakes constantly can be through an actual physical blockage of the
river bed compared to 20 years ago. Further assessment resuspends sediment in the water column. waterway or through altera������� tur��� w Pr��� e modelling scenarios iden�
y that further to
about the impacts from a rang����������� c������������ s include weed and sediment exis��� essures from popula��� owth and coastal
• �������������� ����� ecrea��
on the benthos needs to occur, to build knowledge chokes, or chemical barrier����������� developmen������� �����������W ed
would result in localised, regular resuspension.
and understanding of these dynamics. This in turn will ���� a���� aterways. by changed pa�erns of rainf����� w events,
inform ecosystem-based management of the Noosa • Commer����������������������� increasing water temperatur������� at tr�����
estuary and support sustainability of Noosa’������ beam trawls, would resuspend sediment within In 2017 Council commissioned an assessment of and changes in stock dis�����
the river system and prevent seagrass and benthic barriers t������ e throughout the Noosa River
The authors of the study suggest that the primary fauna from re-establishing. system to iden�y sites for remedia��� o restore The loss of longitudinal and lateral c�������
cause for the decline in benthic fauna is the amount of aqua��
�����
. This was achieved through: waterways imposed by instream barriers is considered
The River Plan proposes a rang������� o deal with a widespread contributor to the r������� ersity,
sediment in the river and its regular resuspension. The
the issues iden������������ eport. • Retrieval of data from State agencies and Council abundance and dis���������������� ��
report suggests that this may be exacerbated by the lack
����� , preven�������� t escaping, given the of known man-made structures within waterways fauna. A growing body of evidence supports the need
amoun����������� er las����� such as weirs, culverts and bridges. f������������� aking a systema���ogram
of barrier remedia���
Culvert barrier to fish passage
20 21
= es
~—
ow cies
—_
——
<< SS ——$_——_——- = == aS a
Sa SS
—— $e =
ee ee
ere also smaller in The likely cause of sediment in the riv Comprehensiv vey#land assessment of
2018, with many samples only containing a few within the upper catchment, especially areas such as known and new barriers.
individuals. This large decline triggered a resampling Kin Kin Creek where riparian habitat is not as complete The Noosa River is recognised as important habitat
regime in November 2018 which coincided with spring as in other areas of the catchment. Sediment would for commercially and recrea an ? ? t ideal s using
criteria based onc th, stream class and
recruitment of many benthic species with invertebrate take many years t wethr erefit lakes species such as sea mullet, tailor, trevally, g
habitat quality.
larv ort (i.e2ithe number systems before it gets to the Noosa estuary and dart, br , aid is a stronghold
of samples at each loca a@increased three-fold. oposed in the River Plan to address these refuge for threatened species such as the Honey Blue-
Twenty-nine of these barriers were further
issues will likely take many years to sho ant eye, Oxleyan Pygmy Perch and Estuary Ray.
inves aked using detailed site data and a rapid
November’s sampling resulted in more species found, improvements. There is also likely some localised
however many occurred as single individuals (or rare impacts from rural roads, stock accessing waterways, Fish require passage throughout the river system as appraisal and assessment, followed by a cost-bene
analysis of remedia tru@ture. Twelve (12)
species) despite the increased sampling e ort. With and poor erosion and sediment control for development part of their life cycles for the purposes of breeding
the individual or rare species excluded, the 2018 t to the river. and spawning, feeding, juvenile migra edator barriers scored the highest, indica ant ?
lev e out@omes and cost-bene
sampling regime iden verall decline in avoidance, and territorial behaviour.
benthic fauna in the Noosa River compared to the 1998 The regular resuspension of sediment is poten ? e efless through remedia S ?
sampling (Skilleter et al, 2018). caused by sever Man-made structures such as weirs, culverts, include a weir in Kin Kin Creek, a damming structure
causeways, bridges and dams can f in Cranks Creek and 10 culverts located throughout
The benthic study has iden stan Some of the lakes are now so shallow that general complete barrier vemeift. This the catchment’s freshwater tributaries.
in the abundance and diversity of benthic fauna in the wind and wav oss the lakes constantly can be through an actual physical blockage of the
river bed compared to 20 years ago. Further assessment resuspends sediment in the water column. waterway or through altera tur Ww Pr e Bhodelling scenarios iden y Bhat further to
about the impacts from a rang ecrea ? C s include weed and sediment exis es8lures from popula oveth and coastal
on the benthos needs to occur, to build knowledge would result in localised, regular resuspension. chokes, or chemical barrier ? developmen ? ed ?
and understanding of these dynamics. This in turn will a atérways. by changed pa _ erns of rainf w events,
inform ecosystem-based management of the Noosa Commer increasing water temperatur at tr
estuary and support sustainability of Noosa’ beam trawls, would resuspend sediment within In 2017 Council commissioned an assessment of and changes in stock dis
the river system and prevent seagrass and benthic barriers t e thittoughout the Noosa River
The authors of the study suggest that the primary fauna from re-establishing. system to iden y&lites for remedia o restore The loss of longitudinal and lateral c ?
cause for the decline in benthic fauna is the amount of The River Plan proposes a rang o deal with aqua ? . THis was achieved through: waterways imposed by instream barriers is considered
a widespread contributor to the r ersify,
sediment in the river and its regular resuspension. The
report suggests that this may be exacerbated by the lack the issues iden eport. Retrieval of data from State agencies and Council abundance and dis
of known man-made structures within waterways fauna. A growing body of evidence supports the need
, pfaéven t escaping, given the
amoun er las ? such as weirs, culverts and bridges. f aking a systema ogram
of barrier remedia
re —
ee ie | i
a
=
tf
ey am, i ah Ri
ete ‘ sleetieg ee
aa ee =
ha ray i
eal
Ss
—~# SF re, = = —
=" a Es
ales oe
Pe
-
io 2 iF. ee agg
7,
=e
— oe
ae
i]
=
fal
“= )
a i
="? Culvert barrier to fish passage
€ SSOONCTONSTSee the original
The page text is free to read. Viewing or downloading an original file needs an account.
Log in to see the originalLog in to download the original file
Large file: the download may take up to a minute.
Searchable page text hides email addresses. Original files are unchanged and may show email addresses.