101 results about "Invasive species" patented technology

Ballast water treatment apparatus and methods for preventing foreign aquatic invasive species form entering marine ecological zones by translocation in ship's ballast water. The apparatus includes a housing, a filter member, and UV water treatment chambers. Methods include use of a ship's fire hydrant system or ballast water discharge port for moving ballast water from the ship's ballast tanks into the apparatus for filtration and treatment. In-port service vessels and barges as well as dock-side service vehicles are equipped with the various treatment and filtration apparatus to provided in-port or dock-side ballast water treatment services. Related methods are also provided.

Ballast water treatment apparatus and methods for preventing foreign aquatic invasive species form entering marine ecological zones by translocation in ship's ballast water. The apparatus includes a housing, a filter member, and UV water treatment chambers. Methods include use of a ship's fire hydrant system for moving ballast water from the ship's ballast tanks into the apparatus for filtration and treatment. In-port service vessels and dock-side service vehicles are equipped with the treatment and filtration apparatus to provided in-port or dock-side ballast water treatment services. Related methods are also provided.

The invention relates to a control method of spartina alterniflora, belonging to the technical field of ecological engineering. Spartina alterniflora is artificially introduced in China in the 1980s, and plays a positive role for damping waves, protecting slopes, promoting deposition and reclaiming lands on Chinese coastline, however, as an alien invasive species recognized internationally, the population characters of powerful breeding and rapid extending ability of the spartina alterniflora bring a series of negative effects to the natural wetlands ecosystem of Chinese coastal tidal land and the regional biodiversity; and control of the spartina alterniflora is already a universal problem. The prior single physical, biological or chemical control method has the disadvantages of low efficiency, high environmental pollution risk, low ecological safety, high cost and unobvious control effect. The invention overcomes the disadvantages of the prior preventing and controlling techniques, and utilizes the comprehensive control method of cradling and water level regulating, eradicates the invasive species and controls the growth and rapid extension of the invasive species through restraining the growth of spartina alterniflora, plays an active restoring role to the ecological system destroyed in large areas, and provides an efficient path for preventing spartina alterniflora from spreading extensively in coastal areas.

The present invention belongs to the field of ecological engineering technology, and provides a method for controlling breeding potential of adventitious species huhuami waterweed. Said method can overcome all the defects or existent control methods and can obtain the optimization and unification of economic benefits, ecological benefits and social benefits.

The invention relates to a DNA molecular marker method for identification of the alien invasive species Spartina alterniflora population. The method includes: conducting high-throughput transcriptome sequencing and screening to obtain a target gene, carrying out a PCR reaction, subjecting the PCR product to sequencing so as to obtain a plurality of single nucleotide polymorphism (SNP) sites, then letting all effective SNP sites compose a haplotype for molecular markers, thus achieving genetic typing. According to the method provided in the invention, rich polymorphism information can be obtained in one experiment. SNP markers have genetic stability, can be used for samples of different sources, and are suitable for high-throughput automated analysis.

A composition for treating waters, e.g. ballast water or injection water for oil recovery, to kill in-situ aquatic invasive species comprises at least one biocide capable of killing both animal and plant micro-organisms. The at least one biocide preferably comprises Brilliant Green, Gentian Violet, and/or erythrosine, and a wetting agent or detergent-like compound such as CTAB or CTAC. The invention also relates to a system for treating ballast water in situ comprising means for injecting a composition for treating ballast water; means for measuring the flow rate or amount of ballast water to be treated; means for controlling the dosing of the composition; and means for storing or receiving the composition. The invention also relates to a method of detecting viable aquatic organisms in ballast water in situ comprising detecting metabolism in viable micro-organisms in ballast water and, therefore, measuring the efficacy of any treatment.

The present invention provides Maternal Sterility Constructs (MSC) and methods of producing sterile progeny lacking germ cells. Female animals carrying the MSC transgene will give rise to a sterile generation, as the MSC specifically eliminates Progenitor Germ Cells (PGCs) of her progeny. These females are called lineage ending females. Male animals carrying the MSC transgene, however, give rise to fertile progeny (assuming the male is not derived from an MSC-transgenic female). Thus, MSC transgenic males can be used to propagate the transgenic line. The invention can be advantageously applied to eliminate pest or invasive species, or to provide effective population control and improve culture performance of farmed species, such as fish and shellfish.

The present invention relates to the use of a primarily nitrogen containing blanketing agent from the air separation unit of a Gas To Liquids, Heavy Hydrocarbon Conversion, or Methanol Synthesis Facility on transport vessels. The primarily nitrogen containing blanketing agent is used to reduce corrosion, reduce product biodegradation and oxidation, control invasive species, and prevent fires and explosions by reducing oxygen content. Accordingly, the present invention relates to integrated processes for producing hydrocarbonaceous products and using a primarily nitrogen containing blanketing agent supplied from the process in shipping the products.

The present invention belongs to the field of ecological engineering technology, and is ecological engineering method of controlling Spartina alterniflora, which, as one kind of exotic species, has the positive effects of protecting shoreline and promoting siltation to create land while possessing negative effects of affecting biodiversity and aquatic culture. The ecological engineering method of controlling Spartina alterniflora is superior to available mechanical eliminating method, herbicide method and biological method, and has no ecological risk, developed biological control and great economic benefit.

The invention relates to a biological combination control technical method of alga growth in eutrophic water bodies; the method is also applicable to water works and water source plants for controlling alga in source water. Chub and hyriopsis cumingii are bred in the eutrophic water bodies by the method; density of the chub in the eutrophic water bodies is 45 to 95 g/m<3>, and weight per chub is 90 to 300g; density of the hyriopsis cumingii in the eutrophic water bodies is 40 to 70 g/m<3>, and weight per hyriopsis cumingii is 50 to 450g. Compared with the existing alga control method, the invention has the advantages of low cost, simple operation, lasting effect, having no secondary pollution and no ecological risks caused by invasive species. Meanwhile, some nutritive salts are taken out of the water bodies by harvesting chubs and hyriopsis cumingiies, and certain economic benefits can be produced.

A system for elimination of unwanted species from contaminated ship ballast water. The apparatus comprises an electrolytic cell containing at least one pair of electrodes, electric alternating current, and parallel perforated electrodes, for providing an effective and safe method to render ballast water or other conductive bodies of water free of aquatic invasive species and/or unwanted biologics.

The invention relates to the technical field of biology, and particularly provides a method for improving Haematococcus pluvialis to produce astaxanthin by using alkali pretreatment technology. The method includes the steps: firstly, adjusting PH (potential of hydrogen) value of the Haematococcus pluvialis subjected to nutrient culture to a range from 10.0 to 12.0 by adding high-concentration alkali liquor; removing supernate by standing and depositing after continuous stirring; inoculating the concentrate to an induction medium; inducing the astaxanthin under the conditions of high light, high temperature, high salinity and the like. The method is simple to perform; on one hand, Haematococcus pluvialis nutrient cell concentration time can be shortened, with loss rate reduced; on the other hand, the environmental tolerance and inducing activity of nutrient cells can be improved by the aid of a high-alkalinity environment; besides, invasive species in algal solution can be inhibited, the disease and pest damage resistance in the production process is improved, and the yield of astaxanthin is increased.

The invention discloses a multiple specific primer pair for assisting in identification and detection of alien invasive species of Pomacea canaliculata and Pomacea maculata and further discloses application of the multiple specific primer pair, aiming to overcome the difficulty in identifying and distinguishing Pomacea canaliculata and Pomacea maculata according to morphological characteristics because Pomacea canaliculata and Pomacea maculata are relative species with similar morphology. The specific primer pair is composed of DNA sequences expressed by a sequence 1, a sequence 2 and a sequence 3 of a sequence table. The specific primer pair can be applied to help to identity the alien invasive species of Pomacea canaliculata and Pomacea maculata molecularly without being affected by individual growth states or sample integrity, and has the advantages of high economic efficiency, convenience, accuracy and high sensitivity. The specific primer pair and the application thereof can be applied to plant protection departments and quarantine department in a wide scope and solves the problem about identification of the alien invasive species of Pomacea canaliculata and Pomacea maculata in China, which troubles the plant protection and quarantine departments for a long time.

The invention provides methods for controlling invasive plants, comprising treating one or more populations of invasive plant species with a composition comprising an effective amount of nucleic acids, wherein the nucleic acids have been produced using gene silencing techniques to target specific plant species, and specific aspects of plant development. In the methods of the invention, the compositions applied to the plants adversely affect only the targeted invasive plants, as compared to any non-invasive plants living in the same environmental setting. Further provided are methods for restoring native plant flora to an environment, by treating a natural environment using the methods provided herein to reduce or eliminate a species of invasive plant in an environment, then reintroducing a native plant species to the environment, such that the native plant population is reestablished in an environment and the invasive species is eliminated or reduced.

The invention discloses a process for constructing a river channel ecological system of a hard revetment by the aid of cofferdams and floating beds. The process include steps of performing hydrological investigation to measure water velocities, water depths and tidal slopes, constructing a plurality of parallel cofferdams along the direction perpendicular to water flows on the sides of the hard revetment according to measured data, fixing the cofferdams by the aid of wood piles, forming ecological restoration zones among the cofferdams, arranging the floating beds on water surfaces among the cofferdams and arranging fungus membrane curtains on offshore sides of the floating beds; planting pioneer species of submerged plants in the ecological restoration zones and performing initial restoration on the ecological restoration zones; planting a plurality of extension species of submerged plants in the ecological restoration zones; performing biological diversity extension, and then regularly removing invasive species when the extension species advantageously grow in the ecological restoration zones. The process has the advantages that the water ecological system of the hard revetment can be quickly and effectively restored by the process, the cost is low, and the process is favorable for large-area popularization.

The present invention discloses a method for removing sporobolus alterniflorus. The method for removing the sporobolus alterniflorus requires the following devices and apparatuses including a mower, arotary cultivator, a ditching and soil covering machine, an agricultural film covering machine, a mulching film perforating machine and a tree support fixer, and requires the following materials including black degradable shading films, mature plants and seedlings of avicennia marina, paulownia fortunei, rhizophora stylosa, kandelia candel and bruguiera gymnorrhiza, and several meretrix lyrata, glauconome chinensis, nassariidae and cassidula nucleus. The method for removing the sporobolus alterniflorus adopts a method of treating the sporobolus alterniflorus and then burying the treated sporobolus alterniflorus firstly and then putting the rhizophoraceae mature plants and seedlings and accompanying marine animals, completely removes the sporobolus alterniflorus, while does not affect themarine ecosystem and surrounding environment, at the same time is free of danger of introducing foreign invasive species, can establish a complete mangrove forest ecosystem and is conductive to ecological restoration of coastal beaches and shoals.

The invention provides an ecological system controlling method, and particularly relates to a method of determining pasture-hybridized chinese pennisetum and/or jerusalem artichoke through screening to control cenchrus paciflorus. The pasture-hybridized chinese pennisetum and/or the jerusalem artichoke are/is used for controlling the cenchrus paciflorus, by means of reasonably collocating hybridized chinese pennisetum and/or the jerusalem artichoke, scientific seeding and management are matched, the growth advantages of the hybridized chinese pennisetum and/or the jerusalem artichoke are used for contending against the cenchrus paciflorus, the intrusion behavior of the cenchrus paciflorus is restrained continuously and effectively, and a guarantee is provided for controlling the alien invasive species cenchrus paciflorus.