Contract No. CV/2012/05
Fauna Translocation Plan - Stage 3
& 4
Dr. Mark Shea
（Version 1; 12 January, 2018）
1 Objective
1.1
To comply with
the EP [EP No.
EP-388/2010; Section 3.11 (c), under Part C, Permit Conditions], i.e., “A trial
shall be conducted in the beginning of the rock removal work so as to further
fine-tune the ‘fauna translocation method’ if necessary. Trials for
rock removal were performed on 21st September and 4th October 2017.
1.2
To relocate the target fauna
species as specified in EP and contract particular specification (PS). The main target species included 3 fish species specified in the EP, i.e., Two-spot Goby (Psammogobius biocellatus), Tropical Sand
Goby (Favonigobius reichei), Grass Puffer (Takifugu
niphobles), as well as starfish,
sea urchins, sea cucumbers within the intertidal zone of the Site. Nine
other fish species that are specified in the PS will also be included in the
translocation exercise, including: Brown
frillin goby (Bathygobius fuscus),
Fork tongue goby (Glossogobius giuris),
Estuarine goby (Mugilogobius abei),
Barcheek goby (Rhinogobius giurinus),
Shimofuri goby (Tridentiger bifasciatus),
Saddle grunt (Pomadasys maculatus),
Spotted scat (Scatophagus argus),
Japanese sillago (Sillago japonica)
and Jarbua terapon (Terapon jarbua);
and to release the collected target species at the reception site of Ting Kok
East Tai Po.
2
Scope of Fauna
Translocation
l Setting up Fencing
Structure
l Fauna Collection
within Project Site at Lung Mei, Tai Po
l Fauna Releasing at
Reception Site of Ting Kok East, Tai Po
3
Method
Setting up Fencing
Structure
3.1
Objective of setting up fencing is to prevent the target
marine fauna re-enter the cleared area
after performing
fauna translocation. The fencing structure should
tolerate tidal changes and hydraulic force. Major components of the fencing
structure with its functions are listed below:
l Metal
posts inserted into the seabed for supporting the fish net;
l Fish
net mesh size 2mm x 2mm: to avoid any incidental movement of any organisms
in and out of the fenced area;
l Sand
bags with sand or alternative filling material: provision of weight
for sinking bottom side of fish net to seabed;
Rock Removal Trial
3.2
Refer to Section 3.2 of Fauna Translocation Plan – Stage 2
Version 3 dated 27 December 2017
Stages of Marine
Fauna Translocation Exercise
3.3
There are altogether 4 Stages in the entire marine fauna translocation
exercise as shown in Figure 2. Each stage of work includes the collection and
release of the target marine faunas together with the associated works in
setting up the fencing system to enclose the translocation area. This document
specifies the arrangement and methodology for the Stage 3
& 4 translocation works.
Set up Fencing
System
3.4
Metal posts will be inserted into the
seabed for supporting the fish net. Fish nets connected to the metal posts and
sand bags with sand or alternative filling material will be placed at the
bottom of the fish net to provide weight for sinking the fish net to seabed. The detail of
fencing system is shown in Figure 1.
The extent of the fencing system is indicated in Figures 3a, 3b and
Figures 3c, 3d for stage 3 and stage 4 fauna translocation respectively.
Fauna Collection
3.5
to 3.12 Refer to
Section 3.5 to 3.12 of Fauna Translocation Plan – Stage 2 Version 3 dated 27
December 2017
3.13 A grid will be considered as “cleared” upon completion of
the inspection, checking and capture of target marine fauna and final checking
by the qualified fish specialist to confirm no
trapping of target species in the area.
3.14
Refer to Section 3.14 of Fauna Translocation Plan –
Stage 2 Version 3 dated 27 December 2017.
Fauna Releasing at
Reception Site of Ting Kok East
3.15
to 3.18 Refer to Section 3.15 to 3.18 of Fauna Translocation Plan – Stage 2
Version 3 dated
27
December 2017.
3.19 Plant and works will
be used in the entire marine faunas translocation exercise include:
a.
Fish
net setting up
-
One
to two labourers
b.
Rock
removal
-
One
fish specialist
-
One
to two labourers
c.
Fauna
capture
- 3 fish container(s) with portable air
pump (aerated water tanks) and sea water
- Hand nets, spates, nylon nets
- One fish specialist as supervisor
- One to three ecologist/assistant ecologist/ecology technicians/workers
d.
Fauna
transportation from Lung Mei to reception site at Ting Kok East
-
One
vehicle
-
One
fish specialist
-
One
worker
4
Fauna Translocation
Programme
4.1 The stage 3 and 4 of
marine fauna translocation includes the installation of fencing system and translocation
within a day. The works will be
completed in January 2018. The
actual translocation schedule shall be recorded in the monthly EM&A report.
5
Seahorses
Found During Fauna Translocation and Seahorse Translocation
5.1 Refer to Section 5.1 of Fauna Translocation Plan – Stage 2 Version 3
dated 27 December 2017.
Figure 1: Details of fencing structure.
Figure 2: Diagram shown stages of fauna translocation
at Lung Mei, Tai Po.
Figure 3a: Stage 3 fauna translocation area with
fencing system at low tide
Figure 3b: Stage 3 fauna translocation area with
fencing system at high tide
Figure 3c:
Stage 4 fauna translocation area with fencing system at low tide
Figure 3d: Stage 4 fauna translocation area with
fencing system at high tide