Hydrated Lime A Background Hydrated lime is used in both the oyster aquaculture industries for predators and fouling organisms the culture of shellfish. Foulin that are controlled with the use of starfish, tunicates, bryozoans and the PEI shellfish industry, hydra mixed with seawater to create a s an approximate concentration of the equivalent of 40 g of hydrated mL of seawater. The li suspension is highly alkaline w approximately 12.7. Use in the Mussel Industry Hydrated lime suspension is appl an immersion treatment or by spra crop and gear. For the immers mussel seed collectors are imme lime solution for approximately 3 large troughs that are attached to mussel boats (see Figure 1). Figure 1. Mussel seed collectors with hydrated lime solution. Application by the Shellfish In e mussel and r controlling that impact ng organisms lime include hydroids. In ated lime is suspension at 4%. This is d lime in 960 ime/seawater with a pH of lied as either aying it onto sion method, mersed in the 30 seconds in o the side of being treated The spray method is utiliz grow-out mussel socks and standard industry method use of Styela clava fouling (see suspension is lightly sprayed they are lifted from the wate are typically only treated growing season, beginning in Figure 2. Lime spray system be clubbed tunicate, S. clava, foulin Use in the Oyster Industry The PEI oyster industry ut lime suspension to treat predators; such as bryozoans and starfish on oyster coll immersion technique. Col treated shortly after oyster (typically July) and repeat tr applied, if required, to reduce are also dipped in a lime and prior to the movement to water to minimize the risk o transfer of an aquatic invasiv AIN 24.2014 ndustry zed primarily on d is currently the ed for the control e Figure 2). The d on the socks as er. Mussel socks once during the n August. eing used to control ng on mussel socks. tilizes a hydrated for pests and s, algae, tunicates lectors using the llectors are often larvae have set reatments may be e fouling. Oysters 30% salt solution another body of f an unintentional ve species.
2
Embed
AIN Hydrated Lime Application by the Shellfish Industry FINAL...Hydrated Lime Application Background Hydrated lime is used in both the mussel and oyster aquaculture industries for
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Hydrated Lime Application
Background
Hydrated lime is used in both the mussel and
oyster aquaculture industries for controlling
predators and fouling organisms that impact
the culture of shellfish. Fouling organisms
that are controlled with the use of lime include
starfish, tunicates, bryozoans and
the PEI shellfish industry, hydrated lime is
mixed with seawater to create a suspension at
an approximate concentration of 4%. This is
the equivalent of 40 g of hydrated lime in 960
mL of seawater. The lime/seawater
suspension is highly alkaline with a pH of
approximately 12.7.
Use in the Mussel Industry
Hydrated lime suspension is applied as either
an immersion treatment or by spraying it onto
crop and gear. For the immersion method,
mussel seed collectors are immersed
lime solution for approximately 30 seconds
large troughs that are attached to the side of
mussel boats (see Figure 1).
Figure 1. Mussel seed collectors being treated
with hydrated lime solution.
Hydrated Lime Application by the Shellfish Industry
is used in both the mussel and
oyster aquaculture industries for controlling
predators and fouling organisms that impact
Fouling organisms
that are controlled with the use of lime include
hydroids. In
industry, hydrated lime is
mixed with seawater to create a suspension at
an approximate concentration of 4%. This is
0 g of hydrated lime in 960
of seawater. The lime/seawater
with a pH of
ydrated lime suspension is applied as either
an immersion treatment or by spraying it onto
crop and gear. For the immersion method,
are immersed in the
lime solution for approximately 30 seconds in
d to the side of
eed collectors being treated
The spray method is utilized primarily on
grow-out mussel socks and is currently the
standard industry method used for the control
of Styela clava fouling (see Figure 2)
suspension is lightly sprayed on the socks as
they are lifted from the water
are typically only treated once during the
growing season, beginning in August.
Figure 2. Lime spray system being used to control
clubbed tunicate, S. clava, fouling on mussel socks.