Clean, stable, gently-flowing seawater for cultivating Zostera seagrass, macroalgae, shellfish and other marine species — engineered water quality, light-coupled flow, temperature and nutrient control for research and restoration facilities.
Seagrass restoration and marine-species cultivation are among the most water-quality-sensitive activities a coastal facility can host. Seagrass (Zostera marina and relatives) is light-limited, so even modest turbidity suppresses growth; it needs stable salinity and temperature, the right nutrient balance, and gentle, non-scouring flow that mimics a sheltered seabed. Reynolds & Bauhm designs the seawater life-support behind these programmes: a low-turbidity filtered supply, precise temperature and salinity control, controllable nutrient dosing or stripping, and gentle distribution to tanks, raceways or mesocosms — flow-through or recirculating to suit the science and the discharge consent.
Seagrass is light-driven. We filter to consistently low turbidity (often <1–2 NTU) so photosynthetically active radiation reaches the leaves, and design tank depth and flow to avoid re-suspending fines.
Titanium heat-exchange and salinity make-up hold conditions within tight, repeatable bands — essential for valid experiments and for matching the donor-site environment in restoration work.
Controlled dosing of nutrients or DIC — or stripping of excess — lets researchers set the growth regime, with monitoring tied into the facility SCADA.
Nutrient DosingGentle aeration or oxygenation and pH/DIC management keep day-night gas swings within the species’ tolerance without scouring sediment or fragile shoots.
Aquaculture AerationHeader-tank gravity distribution gives surge-free, evenly-balanced flow to each tank, mimicking a sheltered seabed and protecting seedlings and settling larvae.
UV (and optional ozone) disinfection plus fine filtration keep pathogens, competing algae and unwanted larvae out — critical for restoration stock destined for release.
Starting points — tuned to the species and the research protocol.
| Parameter | Typical range | Driver |
|---|---|---|
| Turbidity | < 1–2 NTU | Light penetration for photosynthesis |
| Temperature | Set-point ± 0.5 °C | Growth rate & experiment validity |
| Salinity | Site-matched, ± 1 PSU | Osmotic stability |
| Tank turnover | 1–4 exchanges/hour | Gas & metabolite control without scour |
| Filtration | 10–25 µm + UV | Clarity & biosecurity |
| Flow regime | Laminar, low shear | Protect shoots, seedlings, larvae |
Share your species, tank schedule and target conditions — we’ll design the seawater supply, filtration, temperature, nutrient and flow control to hold exactly the environment your programme needs.
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