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Aquaculture fish pen with mortality trap

A capture device and fence technology, applied in fishing, fish farming, climate change adaptation, etc., can solve problems such as adverse effects on the ecosystem in the seabed area, accumulation on the seabed, and waste sinking under the fish cages.

Inactive Publication Date: 2018-12-21
INNOVASEA SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of offshore aquaculture systems is that waste from fish farms sinks below the fish cages and collects on the seabed, adversely affecting the ecosystem of the seabed area

Method used

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  • Aquaculture fish pen with mortality trap
  • Aquaculture fish pen with mortality trap
  • Aquaculture fish pen with mortality trap

Examples

Experimental program
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Embodiment Construction

[0031] When fish in commercial open water fish pens die (or become debilitated by disease), the dead fish (referred to in the art as "dead matter") will initially not float and sink to the bottom of the fish pen. After a short time, due to the gases generated therein, the dead matter will become neutrally buoyant and then float up, causing the dead matter to rise through the fish pen. Dead matter will therefore remain in the fish pen for a long time. Dead matter in large fish pens is very difficult to identify, isolate and retrieve from the fish pen. In existing mariculture operations, the removal of dead matter by divers is a difficult task.

[0032]Quickly isolating dead matter is beneficial. By identifying and retrieving dead material more quickly, the cause of death can be determined in time and the correct measures can be implemented to prevent or reduce the loss of other fish. For example, if the dead matter is found to be caused by a pathogen for which protective tre...

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PUM

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Abstract

A mortality trap (150) for a spar buoy fish pen (100) is configured to receive and trap deceased fish, or morts (M), that sink from the fish pen. The mortality trap attaches to a lower portion of thespar buoy (110) to define a first passage (90). The sinking mort passes into an upper receiver portion (150U) of the mortality trap, and encounters a sloping transverse panel (154). Gravity causes themort to continue through a second passage (B) into a lower entrapment portion (150L), and further into a region underlying the transverse panel (154) preventing the mort from escaping if it becomes positively buoyant. The entrapment portion optionally includes a converging channel into a valved port, to permit extraction of morts. The mortality trap may be located on the distal end of the spar buoy, or at an intermediate location on the lower portion of the spar buoy.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Provisional Application No. 62 / 298964, filed February 23, 2016, which is hereby incorporated by reference in its entirety. Background technique [0003] Oceans and other natural pools have provided a rich and steady source of food for thousands of years. However, in recent years, overfishing, inefficient fishing practices, and environmental stressors have led to declines or declines in some fish stocks in many regions. At the same time, growing population, rising living standards, and growing awareness of the health benefits of seafood have increased the demand for fish and fish products. [0004] The development of the aquaculture industry in general (fish farming in particular) and the improvement of technology have progressed significantly to effectively address the worldwide demand for fish products at a lower cost. The development of fish farming also reduces the risks associate...

Claims

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Application Information

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IPC IPC(8): A01K61/60A01K61/95A01K63/10
CPCA01K61/95A01K61/60Y02A40/81A01K61/10A01K61/65A01K74/00
Inventor L·R·加斯D·凯利
Owner INNOVASEA SYST INC
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