AQUACULTURE
JEE246 Introduction to Maritime
Science, Engineering and Technology
Topics
Ship Mission Requirements
•Introduction
Purpose of the vessel
•Onshore
•Intended performance
•Coastal
envelope
•Offshore
•Initial investment
•Innovations
•Operational costs
Plays increasingly important role in global food
production with now more than 50% of edible
seafood come from aquaculture.
Fish is last hunter-gather activity to move to
farming.
Aquaculture
Aquiculture is fastest growing segment of farming
where, over last 30 years, production has grown
on average 8.4% per year.
It is known more colloquially as “fish farming”,
but this name may mask the wide variety of
plants and animal species farmed.
The term “semi-controlled” is necessary as any
activity undertaken outside is subject to
uncontrolled influences.
Aquaculture
The definition of aquaculture is the reproduction
and growth of aquatic plants and animals in a
controlled or semi-controlled environment.
Mariculture refers to aquaculture conducted in
salt water: Prawns; Salmon; Oysters; Muscles;
Algae; Kelp and so on…
Aquaculture is most commonly associated with
food production, but it is important to recognise
that this is only part of the story.
Aquaculture
A water lily farm on the Margaret river is probably
not what springs to mind but aquaculture can take
many forms.
Ponds are purpose constructed and may form a
substantial part of the local landscape but having
large volume of product (economy of scale).
Need civil engineering design, technological
systems (airation, feeding), process systems
(waist managements) and water.
Ponds
Wide range of systems that require engineering
design, with fish grown in ponds, cages,
raceways, and recirculating systems.
Needs large volumes of water that would typically
need supplying by gravity.
Suitable geographical locations limited, and strict
wastewater management is required.
Raceways
Raceways are long narrow channels with
constantly flowing water.
Examples of recirculating aquaculture systems
include a home aquarium, large Sealife aquaria or
commercial farming or research facilities.
Popularity is growing for hydroponic systems that
can produce fish and vegetables with limited
space in say an urban environment.
Recirculating
Recirculating aquaculture systems use pumps and
filters to continuously clean and recirculate the
water.
Engineering challenges encompass design of
complex systems.
Cages and large offshore installations require
expertise of matitime engineering.
Business
Many steps in the process, beyond just the cage
or pond, from science to business management
and entrepreneurialism.
Open-Pen Cages
Anchoring or piles
Net
Waist
Products
Open-Pen Cages
Floats
Mussel Ropes
Anchoring or piles
Mussel ropes
Mussel Ropes
Floats
Offshore Cages
Maintenance
Submersible
Innovation
Topics
Ship Mission Requirements
•Introduction
Purpose of the vessel
•Onshore
•Intended performance
•Mariculture
envelope
•Offshore
•Initial investment
•Inovations
•Operational costs
AQUACULTURE
JEE246 Introduction to Maritime
Science, Engineering and Technology