Shellfish Aquaculture Course

Lesson 1 • Feeding Biology and Nutrition

Explains filter-feeding mechanisms and nutritional requirements of farmed mollusks. It connects feeding biology to site selection and productivity planning.

Lesson 2 • Environmental Tolerances and Stress Responses

Defines salinity, temperature, and pH ranges for key species. It prepares students to interpret environmental data and anticipate stress-related losses.

Lesson 3 • Anatomy and Physiology Essentials

Examines internal and external structures of bivalves and gastropods. It links anatomical knowledge to health assessment and husbandry practices.

Lesson 4 • Mollusk Taxonomy and Classification

Covers the major classes of mollusks and their distinguishing features. It establishes the taxonomic framework used throughout the course.

Lesson 1 • Hydrodynamics and Water Flow Analysis

Covers tidal patterns, current velocity, and water exchange rates critical to farm productivity. It connects flow dynamics to stocking density and gear placement decisions.

Lesson 2 • Seabed and Substrate Evaluation

Examines sediment type, organic load, and bottom stability for bottom culture suitability. It guides gear anchoring and lease boundary decisions.

Lesson 3 • Regulatory and Permitting Frameworks

Introduces coastal use permits, water quality classifications, and environmental impact requirements. It prepares students to navigate approval processes before farm establishment.

Lesson 4 • Water Quality Parameters

Teaches measurement and interpretation of salinity, temperature, dissolved oxygen, and turbidity. It establishes baseline quality benchmarks for species-specific site suitability.

Lesson 1 • Broodstock Selection and Conditioning

Covers criteria for selecting healthy broodstock and conditioning protocols to synchronise spawning. It establishes genetic and health baselines for seed quality.

Lesson 2 • Larval Rearing Systems

Explains tank design, water exchange, and feeding regimes for D-veliger through pediveliger stages. It builds competency in daily larval management and record-keeping.

Lesson 3 • Spawning Induction Techniques

Describes thermal, chemical, and strip-spawning methods used to trigger gamete release. It connects induction method choice to species biology and hatchery scale.

Lesson 4 • Microalgae Culture for Hatcheries

Covers algae species selection, culture maintenance, and contamination control for hatchery feed production. It ensures a reliable in-house food supply for larval and nursery stages.

Lesson 1 • Transition to Field Deployment

Prepares students to harden juveniles and plan the timing of field transfer. It connects nursery performance data to gear selection and stocking decisions in the field.

Lesson 2 • Stocking Density and Growth Optimisation

Teaches density-dependent growth relationships and methods to set optimal stocking rates. It links density management to feed availability and juvenile condition indices.

Lesson 3 • Upweller and Downweller System Design

Explains flow-through nursery system configurations and their suitability for different production scales. It connects system design to water quality maintenance and feeding efficiency.

Lesson 4 • Juvenile Health Monitoring

Introduces visual and microscopic health assessment methods for nursery-stage animals. It establishes early detection practices that reduce mortality before field transfer.

Lesson 1 • Stocking, Thinning, and Rotation

Teaches stocking rate calculations, thinning schedules, and rotational use of grow-out areas. It optimises space use and prevents density-dependent growth suppression.

Lesson 2 • Bottom Culture Methods

Covers broadcast seeding, relay culture, and predator exclusion on natural and prepared substrates. It establishes the lowest-cost grow-out option and its site requirements.

Lesson 3 • Off-Bottom and Suspended Culture

Explains longline, rack-and-bag, and lantern net systems for suspended grow-out. It connects gear choice to tidal exposure, wave energy, and species requirements.

Lesson 4 • Gear Maintenance and Longevity

Covers inspection schedules, repair techniques, and storage practices to extend gear service life. It reduces capital replacement costs and prevents catastrophic gear failure.

Lesson 1 • Biosecurity Planning and Implementation

Covers movement controls, disinfection protocols, and quarantine procedures to prevent pathogen introduction. It establishes farm-level biosecurity as the primary disease prevention tool.

Lesson 2 • Diagnostic Methods and Sampling

Teaches histology, PCR, and culture-based diagnostic techniques applicable on-farm and in labs. It connects accurate diagnosis to appropriate treatment and reporting obligations.

Lesson 3 • Predator and Pest Management

Addresses control strategies for starfish, crabs, drilling snails, and bird predators. It integrates physical and behavioural deterrents into routine farm operations.

Lesson 4 • Harmful Algal Bloom Response

Explains biotoxin accumulation, monitoring programmes, and harvest closure protocols during algal bloom events. It prepares students to protect product safety and minimise economic losses.

Lesson 1 • Harvest Timing and Market Size Standards

Covers size grading criteria, condition index targets, and seasonal timing for optimal product quality. It links biological readiness to market demand and pricing cycles.

Lesson 2 • Harvesting Methods and Equipment

Describes hand harvesting, mechanical dredging, and hydraulic harvesting equipment for different culture systems. It connects method selection to product quality and labour efficiency.

Lesson 3 • Food Safety and Traceability Systems

Introduces shellfish sanitation programme requirements, lot tagging, and chain-of-custody documentation. It ensures students can meet regulatory traceability obligations from harvest to buyer.

Lesson 4 • Cold-Chain Management and Storage

Covers icing, refrigerated storage, and temperature monitoring to maintain live shellfish quality. It connects cold-chain integrity to shelf life, food safety compliance, and buyer requirements.

Lesson 1 • Marketing and Sales Channels

Examines direct-to-consumer, wholesale, and restaurant sales channels and their margin implications. It prepares students to position their product and negotiate with buyers.

Lesson 2 • Production Planning and Record Systems

Teaches production scheduling, inventory tracking, and data management for continuous improvement. It links accurate records to regulatory compliance and business decision-making.

Lesson 3 • Risk Management and Business Resilience

Identifies production, market, and climate risks and introduces mitigation strategies including insurance. It prepares students to build adaptive capacity into their farm business model.

Lesson 4 • Environmental Sustainability Practices

Covers ecosystem services provided by bivalves, carrying capacity management, and habitat stewardship. It positions sustainable practices as both ethical obligations and market advantages.