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Aquaculture / Smart Fish Farm — Knowledge Base Index

Complete research foundation for the OpenEnv Hackathon environment Domain: Autonomous Fish Farm Management Compiled: April 1, 2026


Documents

# File Lines Description
01 01-BIOLOGY-AND-SCIENCE.md 1,140 PhD-level aquaculture biology: growth models (SGR, TGC, von Bertalanffy), water chemistry (DO, ammonia, nitrogen cycle, pH), feeding science (FCR, feeding rates), disease pathology (12+ diseases with triggers), behavioral welfare indicators, species-specific data (salmon, tilapia, shrimp, catfish, trout), RAS design, biofloc technology. Includes all equations, thresholds, and units.
02 02-REAL-WORLD-OPERATIONS.md 918 How commercial fish farms ACTUALLY operate: daily routines, sensor systems and refresh rates, automated feeding tech, DO management (aerators, paddlewheels), economics (cost structures, margins by species/country), mass mortality events and causes, Norwegian/Scottish salmon operations, infrastructure specs, regulations, harvest processes. Real industry numbers and operational reality.
03 03-MATHEMATICAL-MODELS.md 1,444 Control systems and mathematical models: bioenergetic growth ODEs, DO mass balance equations, TAN production models, disease SIR/SEIR equations, population dynamics, bioeconomic optimization, PID/MPC/Bang-Bang control, MDP formulations, stochastic models, multi-objective Pareto, DEB theory, thermal models, agent-based simulation. Ready-to-implement state/action/reward specs for OpenEnv.
04 04-RL-AND-AI-RESEARCH.md 350+ Every RL paper applied to aquaculture: Q-learning (KAUST 2021), DDPG series (6 papers, 2025), RAG-LLM+DQN hybrid, disease prediction RL, existing environments and tools (gym_fishing, FishMet, Fish Gym), reward functions tried, computer vision systems, autonomous robotics, AQUA-7B LLM, state-of-art gaps. 40 citations with full URLs.
05 ../ENVIRONMENT_RESEARCH.md 450+ Broader domain research: OpenEnv ecosystem status, all existing environments, SF hackathon winners, other hackathon winners, hardest benchmarks for frontier models, domain gap analysis, physical reality-based ideas evaluation, task-rich autonomous systems deep dive.

Total Knowledge Base: ~4,300+ lines across 5 documents


Quick Reference: Key Numbers for Environment Design

Water Quality Thresholds (Nile Tilapia — our primary species)

Parameter Optimal Acceptable Stress Lethal
Temperature 27-32°C 22-34°C <20°C or >36°C <11°C or >42°C
Dissolved O₂ >5 mg/L 3-5 mg/L 1-3 mg/L <1 mg/L
pH 6.5-8.5 6.0-9.0 <5.5 or >9.5 <4 or >11
NH₃ (unionized) <0.02 mg/L 0.02-0.05 0.05-0.3 >2.0 mg/L
Nitrite <0.1 mg/L 0.1-0.5 0.5-1.0 >5.0 mg/L

Growth Model

dW/dt = [Ψ(f,T,DO) × v(UIA) × W^0.67] - [k(T) × W^0.81]
SGR = 2.93 %/day at 32°C (tilapia)
FCR = 1.5-2.0 (tilapia)

Key RL Result (Baseline to Beat)

Q-learning achieved 79% less feed and zero mortality vs Bang-Bang control (Chahid et al. 2021)

Gap We're Filling

No Gymnasium/OpenEnv-compatible aquaculture farming RL environment exists. This is the #1 identified gap in the entire aquaculture AI research landscape.


Decision: Environment Configuration

  • Species: Nile Tilapia (Oreochromis niloticus) — best-studied, fastest growth, most RL data
  • System: Recirculating Aquaculture System (RAS) — most controllable, most sensors, most relevant for AI
  • Scale: Single-tank → multi-tank progression across tasks
  • Time step: 1 hour (balances biological dynamics with decision frequency)
  • Episode length: Variable by task (1 day for feeding → full season for harvest timing)