摘要:
A larvae counter comprising a first container for receiving water, eggs of insects and/or larvae, a second container in fluid communication with the first container for receiving water and larvae from the first container, and a larvae counting module in fluid communication with the second container for receiving water and larvae from the second container and counting the larvae.
摘要:
A fish rearing tank comprising the features of: a) an egg-shaped shell (1) with a generally vertical long axis and gradually narrowing shape towards its tip volume portion; b) said shell (1) forming a generally rigid tank; c) said shell (1) being closed; d) said shell (1) having one or more water inlets (11); e) said shell (1) having one or more water outlets (16, 29); said egg-shaped tank (1) for holding a water volume in its major lower volume portion and enclosing air in its minor, upper tip volume portion (4). Further disclosed is a method of rearing fish providing such an egg-shaped shell (1) and conducting bottom to top or ?reverse?-circulation of water through said egg-shaped shell (1) while maintaining its air-filled volume in said tip (4).
摘要:
A device for counting animal traffic in an aquatic animal passage system includes chutes positioned across the aquatic animal passage system and a sensor positioned to sense an animal moving through or in the aquatic animal passage system. The chutes and the aquatic animal passage system are formed with precast concrete segments and may include a protective liner or coating coupled to their outer surface to protect animals from contacting the outer surface of the precast concrete segments. The sensors may be integrated with the precast concrete segments forming the chutes. Smart concrete segments may be employed as transducers to create an electric field in the chutes, with impedance sensors coupled to the transducers being responsive to changes to the electric field in the chutes caused by passing animals.
摘要:
The system for uniquely identifying subjects from a target population operates to acquire, process and analyze images to create data which contains indicia sufficient to uniquely identify an individual in a population of interest. This system implements an automated, image-based process that captures data indicative of a selected set of external characteristics for subjects that are members of a target population of a predetermined species.
摘要:
A containment pen for finfish aquaculture, comprising a supporting structure, a net attached to the supporting structure and defining a containment volume for containing finfish, wherein the net comprises a plurality of removable net panels, wherein each of the removable net panels comprises a discrete piece of flexible netting attached along its perimeter to one or more substantially rigid members, and wherein the removable net panels are configured to be removable from the containment pen with the piece of flexible netting remaining attached to the substantially rigid members.
摘要:
A selective breeding method of a new strain of Crassostrea gigas with orange left and right shells, comprising the following steps: selecting individuals of C. gigas with purple left shell and black mantle as the male broodstocks and individuals of C. gigas with black left shell and black mantle as the female broodstocks from cultured populations to generate a F1 family by applying single-pair mating strategy; selecting individuals with black purple left and right shells and black mantle from the F1 family as broodstocks to generate F2 families through family selection; selecting individuals with black purple left and right shells and black mantle from the F2 families as broodstocks to generate F3 families through family selection; selecting individuals with orange left and right shells from the F3 families as broodstocks to propagate to generate a new strain of C. gigas with the stably inherited trait of orange left and right shells. The new color trait of C. gigas improves the additional value of oyster products. It has been proven that there is a promising market for this new strain of C. gigas.
摘要翻译:一种具有橙色左右壳的新型Crassostrea gigas菌株的选择育种方法,包括以下步骤:选择具有紫色左壳和黑幔的C.gigas的个体作为雄性亲体和具有黑色左壳的C.gigas的个体 和黑色地幔作为养殖种群的雌性亲体,通过应用单对交配策略产生F1家族; 从F1家族选择黑紫色左右壳和黑色地幔的个体作为亲体,通过家庭选择产生F2家族; 选择F2紫色左右壳和黑色地衣的个体作为亲体,通过家庭选择产生F3家族; 选择具有来自F3家族的橙色左右壳的个体作为亲体传播以产生具有橙色左右壳的稳定遗传特征的C.gigas的新菌株。 C. gigas的新颜色特征提高了牡蛎产品的附加价值。 已经证明,这种新的C.gigas菌株有一个有希望的市场。
摘要:
The present invention relates a method and device for tracking movements of marine animals or objects in large bodies of water and across significant distances. The method and device can track an acoustic transmitter attached to an animal or object beneath the ocean surface by employing an unmanned surface vessel equipped with a hydrophone array and GPS receiver.
摘要:
An imaging plate includes a plurality of wells individually accommodating little fishes, and the little fishes inside the wells are imaged from bottom portions of the wells. In order to adjust imaging posture or imaging positions of the little fishes inside the wells, an imaging little fish management device includes a water unit which supplies and discharges water into and from each well of the imaging plate. The water inside each well flows through a discharge hole provided laterally at a lowermost portion of each well. The water unit is also used to breed the little fishes of the wells of the imaging plate.
摘要:
A water changing and cleaning system and device for bowl, aquarium or pond kept pet fish is disclosed. You can pour the fish directly from a bowl into this invention, (capacity is unlimited due to flow through design). Device comprises a container within a container, the inner container features a gill port, running horizontally and flush with the bottom of the container, water flows through the inner container and rises in the space between the two containers, until it overflows from the provided outlet on the outer container, carrying unwanted matter with it. Using a source of clean water to flush through the device, once a satisfactory level of cleanliness is observed the inner container is removed and the fish is returned to its cleaned Bowl. The fish was never out of water during the process. Device can be used to capture fish, so no nets required.
摘要:
Device for destroying parasites on fish, such as salmon lice on salmon in fish farms, comprising a camera (4) communicating with a controlling unit (51) which in turn communicates with a light source (5) adapted to fire pulses of point shaped light which is harmful for the parasite in question. The controlling unit (51) controls a system for optical recognition within a defined coordinate system and is arranged to detect points and to update in real time coordinates that exhibits contrast differences typical for parasites on a fish surface and to trigger a light pulse from the light source (5) when the coordinates for at detected point coincides with the coordinates for the aiming point of the light source.