5 results about "Saury" patented technology

The invention discloses 36 pairs of polymorphic primers and 84 pairs of SNP molecular markers used for amplifying the swallow aculeatus, and an application of the polymorphic primers in genetic diversity analysis of the swallow aculeatus, and particularly discloses an application of the polymorphic primers in the genetic diversity analysis of the swallow aculeatus and application of the polymorphic primers in the genetic diversity analysis of the swallow aculeatus, the number of the polymorphic primers is 36, and the number of the swallow aculeatus SNP molecular markers used for amplifying the 36 pairs of the primers is 84. According to the invention, the SNP molecular markers with abundant polymorphism are established on the swallow-wing fish in batches for the first time, 36 pairs of polymorphic primers are screened out, and an efficient analysis technical tool is provided for research on genetic diversity, family identification, population genetic structure, genetic breeding, enhancement and release and the like of the swallow-wing fish; the method for developing the SNP marker is simple, convenient, rapid and efficient, and manpower and cost are saved.

The invention belongs to the technical field of intelligent fishery and fishing, and discloses a saury fishing boat dynamic path planning method considering fishing point changes. Comprising the following steps: acquiring marine physical and biogeochemical data and a historical fishing data set, performing data cleaning, spatial alignment and normalization processing on the data, establishing a relation model between a fishing probability and a marine environment factor, constructing a dynamic fishing boat path planning problem model, and solving and outputting an optimal path. According to the method, accurate and green fishing of saury fishery is facilitated, the economic benefits and environmental sustainability of ocean fishery are improved, and powerful technical support is provided for high-quality development of modern fishery.

The utility model discloses a kind of needlefish stringing mould, including mutually buckled upper die and lower die, the upper die includes multiple fish body positioning parts and a fish head positioning part, multiple fish body positioning parts and fish head positioning part are arranged along the same linear direction interval, the lower die includes fish body positioning groove, fish head positioning groove and fish tail positioning groove, fish body positioning groove, fish head positioning groove and fish tail positioning groove are arranged along the same linear direction and mutually through, fish head positioning groove and fish tail positioning groove are arranged in the two sides of fish body positioning groove, the position of fish body positioning part corresponds with fish body positioning groove, the position of fish head positioning part corresponds with fish head positioning groove. The utility model is positioned to needlefish by mutually matched upper die and lower die, fish body does not displace when stringing, thus can ensure that stick accurately is worn into fish body, and the case where fish body is worn off or penetrated does not appear, and then improve stringing efficiency and the security of stringing.

The application discloses a kind of fast and efficient light trapping ocean bluefin horse mackerel fish gathering system and its using method, by designing light control scheme, the method for optimizing big light pole fish gathering lamp lens angle reduces the phenomenon that bluefin horse mackerel runs net when net is lifted, bluefin horse mackerel ship is divided into 3 regions, and long light pole and several lens angle changes LED fish gathering lamp are arranged at netting position;When fishing operation is carried out, all LED fish gathering lamps are opened for a period of time to complete fish gathering, and then LED fish gathering lamps on the bow, stern small light pole are sequentially closed from the middle of the left shipboard of fish taking part by control room switch according to closing order, and bluefin horse mackerel is gradually attracted to the position of big light pole above the net according to the closing order;At this time, several rows of fish gathering lamps on the big light pole are sequentially closed to the outermost side of the light pole.The application prevents fish school from swimming outward and appearing the phenomenon that net is run during net lifting process, improves the fish gathering effect and fishing efficiency of bluefin horse mackerel light fishing from details, and greatly improves the fishing yield and single fishing economic benefit.

The present invention discloses a method for finely determining the state of vessels catching Pacific saury in the North Pacific by multi-threshold hybrid determination. The state of each vessel position is judged through a combination of VMS data, operation time, and marine environment. By multi-threshold hybrid determination of the vessel state of saury vessels, the vessel state can be more finely distinguished. The VMS data includes speed, course difference, and position difference; the operation time is the local time in the North Pacific; the marine environment is wind and wave data. Due to the adoption of the above technical solution, compared with the prior art, the present invention has the following advantages and positive effects: The present invention determines the vessel state of saury vessels by multi-threshold hybrid determination. Since the trajectory of saury vessels changes greatly during fishing operations, different from other fishing vessels, by mixing and determining with multiple thresholds, the vessel state can be more finely distinguished.