32 results about "Marine algaes" patented technology

The invention relates to an artificial algal reef which can avoid being damaged by sea urchin. The invention is characterized in that; the reef is formed by several accumulated reef discs into cylinder or square structure, while the section of circumference is in saw shape, and the upper part of reed is concave-convex face. The invention has the advantages in the prevention of sea urchin, to protect the algal, with simple structure, low cost and easy production, while it can add glass slag on the face to apply the growth of algal.

The invention discloses a multifunctional artificial algal reef, and aims at providing a multifunctional artificial algal reef with which sediment accumulation on main reef surface can be effectively prevented, algal reef surface sediment can be effectively removed, and the influence of the sediment to algae attachment and growth can be avoided. The artificial algal reef comprises a main reef and a plurality of sub reefs arranged on the top surface of the main reef. The top surface of the main reef is a spherical surface protruding upwards. The sub reefs are connected to the main reef through connection columns. Spaces are provided between the sub reefs and the top surface of the main reef. Threads preventing conch and sea urchin climbing are arranged on the connection columns and between the sub reefs and the top surface of the main reef. The invention also discloses a multifunctional artificial algal reef manufacturing method with which algae young sporophyte attachment efficiency under natural conditions can be improved.

The invention discloses a sedimentation type artificial reef structure which aims for settling defects of single function, easy blockage after use for a certain time period, and incapability of promoting gathering living of a fish swarm in an existing artificial reef. The sedimentation type artificial reef structure comprises an alga culturing substrate and a reef substrate. A pull rope is connected between the alga culturing substrate and the reef substrate. The alga culturing substrate is connected with impact balls which are used for being impacted with the reef substrate. The reef substrate is provided with high-pressure gas for flushing a fish sheltering chamber. The impact balls trigger a rebound mechanism. The rebound mechanism cuts an air cover to open. The high-pressure gas is discharged for flushing the fish sheltering chamber, thereby preventing blockage of the fish sheltering chamber. The sedimentation type artificial reef structure can provide a place for inhibition, breeding, baiting and sheltering of fish swarms and furthermore can be used for culturing alga, thereby realizing high economic benefit. The fish sheltering chamber in the reef substrate are not easily blocked after coming into service.

The invention discloses a suspended artificial algal reef device and aims at providing a suspended artificial algal reef device having not high requirement for seawater transparency in a sea area and capable of effectively solving the problem that a floating algal reef floats with sea surface waves and easily damages algae growing on the algal reef and the whole algal reef is damaged in severe weathers such as typhoon. The suspended artificial algal reef device comprises a counter weight anchor suspended on an algal reef body in water, a trigger floating frame floating on the water surface and located above the algal reef body and a sedimentation triggering device, wherein the algal reef body is connected with the counter weight anchor through a connecting rope and comprises an algal reef frame body, a buoyancy device arranged on the algal reef frame body and a first vertical guiding sleeve, and a vertical guide rod matched with the first vertical guiding sleeve is arranged on the trigger floating frame.

The invention relates to a seedling-raising way for algae, in particular to a seedling-raising method for gracilaria algae. The method comprises the following steps: disinfecting cleaned mature gracilaria algae with sodium hypochlorite for 3-5 minutes, flushing the disinfected gracilaria algae with boiled fresh water, and putting the flushed gracilaria algae into boiled seawater for serving as breeding algae in later use; drying the breeding algae in the shade, stimulating, releasing spores, growing a disk-shaped body, performing suspension cultivation after scraping the disk-shaped body, performing enlarged cultivation, inducing the formation of vertical branches, and performing gradual cultivation to prompt growth of seedlings. By adopting the seedling-raising method, the entire spore seedling-raising process is implemented in a relatively small and controllable three-dimensional space, the seedling-raising amount is large, the survival rate is up to 90-100 percent, seedlings grow rapidly, the emergence rate is high, and gracilaria seedlings which are uniform in size and are 5 centimeters in length can be cultivated within 30-60 days.

The invention discloses an artificial fish reef in a steel-frame structure and aims to overcome the defects that an existing artificial fish reef is single in shape and function and low in economical benefit, is easy to block if being used in sea for a period of time, is adverse to gathered life of a fish school, and the artificial fish reef under the sea is relatively poor in stability and easy to swing to affect life of the fish school. The artificial fish reef in the steel-frame structure disclosed by the invention comprises an algae culture matrix and a fish reef matrix, wherein the lower end of the fish reef matrix is fixedly connected with a steel rack and the algae culture matrix is connected with an impact ball for impacting the fish reef matrix; high pressure gas for flushing a fish sheltering cavity is arranged on the fish reef matrix; the impact ball triggers a resilient mechanism to cut a gas cover, so that high pressure gas escapes to flush the fish sheltering cavity so as to prevent the fish sheltering cavity from being blocked. The artificial fish reef not only can provide a place for the fish school to inhabit, reproduce and shelter enemies, but also can be used for cultivating algae, so that the artificial fish reef is high in economical benefit. The artificial fish reef put in use is good in stability, and the fish sheltering cavity in the fish reef matrix is hardly blocked.

The invention discloses a suspended algae growing device and aims to provide the suspended algae growing device. According to the suspended algae growing device, the suspension depth of an algal reef can be controlled and the algal reel is enabled to multiply on the middle layer, an upper-middle layer and the lower-middle layer of a water area; in addition, algae attached to the algal reef are damaged caused by vertical violent floating of the suspended algal reef due to heavier sea wave fluctuation can be effectively avoided. The suspended algae growing device comprises a buoyancy device and an algal reef support body suspended below the buoyancy device through a connecting rope; the algal reef support body comprises a downward-recessed hemispheric support frame and a plurality of algae attaching base blocks arranged on the downward-recessed hemispheric support frame; a rope passing through hole is formed in each algae attaching base block; besides, a mounting rope is arranged in each rope passing through hole in each algae attaching base block; each algae attaching base block is fixed on the downward-recessed hemispheric support frame through each mounting rope.