Mooring Recovery System (MRS)
The MRS (Mooring recovery system) consists of a single spherical buoy that fits over the receiver and provides the buoyancy to let it rise efficiently to the surface once the release mechanism is triggered. The buoy is made of a rugged polyethylene shell filled with synthetic foam tailored to the required depth. The foam backing ensures the float will never puncture and lose its positive buoyancy, implode, or crumble from the sustained pressure. It will neither soak over time nor carry pressure to the surface. It has a bright yellow color to make it easy to spot at sea. The buoy is designed to flip 180° at the surface for better visibility and to keep the transducer submerged for acoustic ranging.
Key Advantages
Complete clean-up after receiver deployment
Use the rope to winch up the mooring and clean up after deployment, recovering all components
Sleek profile that minimizes current drag
The single, spherical buoy over the tubular rope drum secures a minimum of current drag minimizing possible entanglement points.
Reduce the chance of entanglements
The lowered risk of entanglement comes in handy when operating in areas where fishers deploy nets, loose kelp, and other debris carried over the bottom by a current.
Environmentally friendly solution for acoustic tracking
You get the data you need without leaving equipment down below. Additionally, you can reuse the equipment in future deployments.
Mooring Recovery System (MRS) options
We have several options available for your application
Standard MRS setup
The max recommended depth is 100 m with max recommended rope length at 150 m. The rope type is Dyneema 4 mm
Low profile canister MRS
The max recommended depth is 30 m with max recommended rope length at 50 m. The rope type is Dyneema 4 mm
Buoyancy buoy only
“What if I want to deploy my TBRs deeper than 100 m?” We recommend using only a buoy for depths larger than 100 m due to the risk of rope entanglement. Use only the buoy to slip over the receiver for ascending assistance. The perfectly fitted and failsafe buoyancy ensures that the receivers are kept in position during deployment. Easy to spot on the surface and minimal rigging necessary. Max depth options are 100 m and 250 m. Other depth options are available on request.
Safe recovery
The MRS allows the user to safely call up the TBR 800 Release without fear of pulling away from the current. The rope secures it to the mooring while on the surface, and the rope can then be used to winch up the mooring, clean up after deployment, and recover all components. The single, spherical buoy over the tubular rope drum secures a minimum of current drag and minimizes possible entanglement points. The lowered risk of entanglement comes in handy when operating in areas where fishers deploy nets, loose kelp, and other debris carried over the bottom by a current. Two versions of the rope drum are available. The large unit has 150 m of rope capacity, and the smaller unit has a current drag profile and up to 50 m rope capacity.
Specifications
| Specification | Value | Remark |
|---|---|---|
| Rope capacity | 50 m | 150 m | Low-profile rope canister | Standard rope canister |
| Max operational depth | 100 m or 250 m | 35 m | 100 m | Buoy (contact us for other options) | Low-profile rope canister | Standard rope canister |
| Weight | 6.15 kg | 3.65 kg | 5.15 kg | Buoy (100 m) | Low-profile rope canister | Standard rope canister |
| Length | 340 mm | 192 mm | 292 mm | Buoy (100m) | Low-profile rope canister | Standard rope canister |
| Diameter | 340 mm | 291 mm | 291 mm | Buoy (100 m) | Low-profile rope canister | Standard rope canister |
| Receiver cylinder diameter | 90 mm | Buoy |
How it works
The TBR 800 Release is attached to a centre stem in the canister, and the stem, release mechanism, and buoy ensures a tight seal for the rope inside the canister. When release is triggered it will push the release off the stem and allow the buoy to lift to the surface
Follow quick guide
Follow the quick guides in the Downloads section below to prepare the TBR 800 Release and MRS for deployment
Aquatic Animal Tracking
Energy
Frequently used together
Place the TBR 800 Release in the MRS, deploy, and at a later time trigger the release mechanism with the DeckBox Field Kit through the LiveView software.
TBR 800 Release
TBR 800 Release is a robust, low-power digital acoustic receiver operating at 63–77 kHz. Used with Thelma Biotel transmitters, it supports customizable code sets. It features an acoustic release module that can be triggered when paired with the DeckBox
DeckBox Field Kit
The DeckBox is a versatile topside kit for manual logging of acoustic transmitters, retrieving TBR 800 Release units, and performing status checks on deployed equipment. With its rugged, waterproof tablet and our free LiveView software, you get flexible, real-time control and monitoring right in the field.
LiveView
LiveView is the Live tracking and data visualization software delivered by Thelma Biotel. It provides live streaming of acoustic data to your computer or with the Deckbox field kit. LiveView is used as a visual reference when starting and stopping transmitters, for active tracking, communicating with deployed TBR family receivers, and calling up acoustic releases.
Downloads
MRS Quick guide
TBR 800 Release Quickquide
MRS Datasheet
TBR 800 Release Datasheet
Get in touch
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