CN107197836B

CN107197836B - Plankton collecting device

Info

Publication number: CN107197836B
Application number: CN201610149369.8A
Authority: CN
Inventors: 黄壹圣
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-16
Filing date: 2016-03-16
Publication date: 2020-09-25
Anticipated expiration: 2036-03-16
Also published as: CN107197836A

Abstract

The invention relates to plankton collection equipment, which comprises a dragging pipe, a plurality of guide columns, a driver and a catching device, wherein the dragging pipe is provided with a plurality of guide columns; wherein: the towing pipes are arranged into a closed loop along the bank by the hollow towing pipes; the guide columns are respectively provided with pulleys through vertical shaft shafts and are respectively arranged on a plurality of corners on the shore, and each pulley floats out of the water surface through the buoy support to guide the towing pipe to slide; the driver comprises a motor for driving at least one pair of driving wheels and driving the dragging pipe to orbit by friction force; the fishing device comprises a curved bar and a trawl, wherein one end of the curved bar can penetrate between the two driving wheels and is fixedly connected to the towing pipe, and the other end of the curved bar tows the funnel-shaped trawl. Accordingly, the towing pipe drags the towing net to detour along the shore, and plankton in water can be fished into the net at the passing position.

Description

Plankton collecting device

Technical Field

The invention relates to plankton collecting equipment, in particular to plankton collecting equipment which is dragged by a floating rail to feed a feeding cylinder and a trawl to bypass along the periphery of a culture pond so as to automatically feed and catch plankton.

Background

As a result of rapid global warming and over-fishing, species such as coastal fishes, shrimps, shellfishes and the like in Taiwan disappear in large quantity, and the fish source is exhausted. Taiwan all-around-the-sea has unique natural resources suitable for fish, shrimp and shellfish cultivation, and the development of aquaculture becomes the best way for resource regeneration, and the trend of replacing ocean fishery with aquaculture fishery is developed. Wherein the aquaculture fishery comprises fresh water aquaculture pond aquaculture, salt water aquaculture pond aquaculture, and economic fish species such as Oreochromis niloticus, Aneuropaea, Anguillar Japonica, Epinephelus rockcod, Pagrus major, shrimp, and shellfish.

In order to increase unit benefit, traditional aquaculture is usually bred in a high-density stocking mode, in the breeding process from fish fries to adult fishes, due to the fact that growth speeds are different and the sizes are different, breeding manufacturers generally screen and divide ponds by stages in order to avoid the situation that the survival rate of the fish fries is reduced due to poor meat and strong eating or the food competition of big fish and small fish, and the fish fries are respectively bred in different breeding ponds according to the sizes of the fish bodies, so that the survival rate of the fish fries can be improved, and feeding management, water quality control, disease control and the like are facilitated. It can be understood that the fry is small in size and is screened and separated from the pool, so that a great deal of manpower and working hours are required to be invested to carry out each operation one by one, and the efficiency is low.

For example, taiwan patent No. I424811 discloses a programmable aquaculture feeding system with feed recycling, which can automatically or manually set feeding times and time in a program-controlled manner, automatically recycle uneaten feed residues, avoid water pollution, and estimate the eating status and breeding efficiency of actual fish by recycling the residues.

For another example, taiwan patent No. I494057 discloses a labor-saving method and system for collecting fertilized eggs and plankton of aquatic organisms, wherein the method comprises: hanging and exposing one end of a conical net body with meshes capable of intercepting fertilized eggs or young organisms of aquatic organisms to a water flow field; communicating a water inlet arranged at one end of the net body with water flowing into the water flow field; taking out the net body and hanging the net body on the frame, and taking down the container arranged at the other end of the net body and taking out the content of the container. The net body hanging end is provided with a water inlet, the other end of the net body hanging end is provided with a collecting port, the collecting port is connected with and communicated with the container, the hanging mode is that the net body hanging end is connected with one end of a rope, and the other end of the rope upwards extends to penetrate through the fixed pulley.

Disclosure of Invention

The invention mainly aims to provide plankton collecting equipment, which can drag a trawl to pass around the periphery of a culture pond through a floating rail, and can catch plankton in water into the trawl when passing.

Another object of the present invention is to provide a plankton collecting apparatus, which can automatically feed plankton through the feeding tube dragged by the floating rail to pass around the periphery of the cultivation pond.

Still another object of the present invention is to provide a plankton collecting apparatus, wherein flexible bird repelling rods are disposed at a plurality of predetermined points of the floating rail to bypass the periphery of the cultivation pond, so as to automatically repel the shoreside birds, prevent the birds from pecking plankton such as the cultivated fry or shrimp fry, and prevent the birds from contamination with germs.

To achieve the above and other objects, a plankton collecting apparatus according to the present invention mainly comprises a dragging pipe, a plurality of guiding columns, a driver, and a catching device. Wherein: the towing pipe comprises a hollow towing pipe, a closed circulation loop is arranged along the bank of the culture pond, and the towing pipe is arranged on the water surface in a floating mode. The guide columns are respectively arranged on the corners of the culture pond, each guide column comprises a vertical shaft, a floating drum and a pulley, the lower end of the vertical shaft is fixedly arranged on the base of the culture pond, the upper end of the vertical shaft extends out of the water surface, the floating drum and the pulley are arranged on the vertical shaft in a penetrating mode one by one, the pulley is supported by the floating drum to float on the water surface, and the pulley is provided with a guide groove for guiding the dragging pipe to slide. The driver comprises a motor, a speed reducing mechanism, a transmission shaft and a driving wheel set, wherein the output power of the motor is transmitted to the transmission shaft and drives the driving wheel set after being reduced by the speed reducing mechanism, and the driving wheel set drives the dragging pipe to bypass through friction force. The fishing device comprises a first curved rod and a funnel-shaped trawl, wherein one end of the first curved rod is pivotally and fixedly connected to the towing pipe through a joint piece, and the trawl is towed by the other end of the first curved rod.

Furthermore, the driving wheel set comprises a pair of left and right driving wheels, which have sliding grooves corresponding to the outer diameter of the dragging pipe and rub against each other to push against the outer surface of the dragging pipe. A gap is maintained between the left driving wheel and the right driving wheel of the driving wheel set for the first curved rod to pass through.

More preferably, the pipe drawing device further comprises a plurality of driven wheel sets and the driven wheel set, wherein each driven wheel set comprises a pair of left and right driven wheels and is respectively arranged at the left and right sides of the drawing pipe to assist in propelling the drawing pipe. And a gap is maintained between the left driven wheel and the right driven wheel of each driven wheel set for the first curved rod to pass through.

In addition, the device also comprises an extension rod, one end of the extension rod is connected with the first curved rod of the fishing device, the other end of the extension rod extends towards the center direction of the culture pond, the funnel-shaped trawl is dragged between the two ends of the extension rod, and the tail end of the trawl is connected with a collecting basket; and the fishing device also comprises a second curved rod which is arranged in front of the fishing device, one end of the second curved rod is pivotally and fixedly connected to the towing pipe through a joint piece, the other end of the second curved rod is connected with a buoy, a tether is connected with the buoy, and the other end of the extension rod is towed by the free end of the tether, so that the two ends of the extension rod are uniformly stressed.

Preferably, the device also comprises a pair of flexible vanes which are arranged in front of the second curved rod, are axially connected to the towing pipe through a freely rotatable rotating shaft and can rotate along with the propelling of the towing pipe by the resistance of water so as to drive plankton swimming back to the shore of the culture pond.

Preferably, the bird repelling device further comprises a plurality of flexible bird repelling rods arranged on a plurality of predetermined points of the towing pipe, one end of each bird repelling rod comprises an upright section which can penetrate through the space between the driving wheel sets of the driver and is fixedly connected to the towing pipe, and the other end of each bird repelling rod forms a crank arm which extends in a bending way towards the upper side of the culture pond bank.

In addition, the invention can also comprise a feeding device which comprises a third crank rod, a feeding cylinder, a buoy, a feeding screw and a paddle wheel. One end of the third curved bar is pivotally and fixedly connected to the dragging pipe through a joint part; the feeding cylinder is hollow, two ends of the feeding cylinder are closed, the first end of the feeding cylinder is supported at the other end of the third curved rod in a suspending way, a feeding hole is arranged on the top surface of the first end of the feeding cylinder, and a discharging hole is arranged on the upper part of the axial side surface.

The buoy is arranged at the second end of the feeding cylinder, so that the buoy is suspended on the water surface; the feeding screw rod is axially pivoted at the center in the feeding cylinder, can convey bait to the direction of the second end of the feeding cylinder when the feeding screw rod rotates, and comprises an extension end extending out of the outer side of the second end of the feeding cylinder; the paddle wheel is fixedly connected to the extending end of the feeding screw rod, and the paddle wheel comprises a plurality of paddles which can be pushed by the resistance of water to rotate along with the pushing of the feeding cylinder so as to drive the feeding screw rod to rotate.

Preferably, the discharge port is formed in a long and narrow way along the axial direction of the feeding cylinder, the upper edge of the discharge port comprises a protruding brim, and the lower edge of the discharge port extends inwards to form a guide plate; and the feed inlet of the feeding cylinder comprises a rain cover to prevent water from invading to damp the interior.

Preferably, the feeding device further comprises a fourth curved rod arranged in front of the feeding barrel, one end of the fourth curved rod is pivotally and fixedly connected to the towing pipe through a joint member, the other end of the fourth curved rod is connected with a buoy, a tether is connected to the buoy, and the free end of the tether tows the second end of the feeding barrel, so that the two ends of the feeding barrel are uniformly stressed.

Accordingly, the driver drives the towing pipe to move around along the periphery in the culture pond, plankton in water can be fished into the net by towing the part where the fishing device passes through by the towing pipe, and meanwhile, the birds on the shore are automatically driven by the bird driving rods on the towing pipe, so that the birds are prevented from pecking fish fries and avoiding the pollution of germs caused by the birds; or the feeding device is dragged by the dragging tube to achieve the purpose of feeding and material spreading automation.

Drawings

FIG. 1 is a schematic plan view of the plankton collection apparatus of the present invention;

FIG. 2 is an enlarged plan view of the drive of the plankton collection apparatus of FIG. 1, showing the drive driving the trailing tube;

FIG. 2a is an enlarged fragmentary view of the circled portion of FIG. 2 showing the pivotable joint member;

FIG. 3 is an enlarged longitudinal cross-sectional view of the drive of the plankton collection apparatus of FIG. 1 showing the towing tube towing the harvesting device;

FIG. 4 is an enlarged cross-sectional view taken along line 4-4 of FIG. 1, showing the guide post guiding the towing tube to slide;

FIG. 5 is an enlarged fragmentary view of the drive of FIG. 3 showing the curved bar of the fishing apparatus passing through a pair of drive wheels;

FIG. 6 is an enlarged sectional view taken along line 6-6 of FIG. 1, showing a schematic view of the automatic feeding apparatus;

fig. 7 is an enlarged cross-sectional view taken along line 7-7 of fig. 6, showing the filling apparatus and the automatic dispensing.

Detailed Description

The technical features of the present invention will be further described with reference to the following examples, which are merely representative of preferred embodiments and are not intended to limit the scope of the invention, which is best understood by reference to the accompanying drawings and detailed description below.

First, it is explained that the young fish of fresh water and seawater plankton are generally planktonic, and the young fish of fresh water and seawater is not exceptional, and has the habit of swimming back on shoal or shoreside. Fig. 1, 2a, 3-7 illustrate the preferred embodiment of the plankton collection apparatus that the present inventors have developed to provide for this practice, which can be automatically harvested and fed.

Fig. 1 is a schematic plan view of a plankton collection apparatus 1 according to an embodiment of the present invention. As shown in the figures, the towing device T mainly comprises a towing tube 10, a plurality of guiding studs 20 and a driver 30; the towing pipe 10 is a hollow flexible pipe with a predetermined diameter, and is made of, for example, a plasticized material or a recycled material, and has buoyancy to float on the water surface, and the towing pipe 10 is arranged along the peripheral edge of the shore of the culture pond 2, and two ends of the towing pipe are connected to each other to form a closed return pipe.

A plurality of guiding columns 20 disposed at a plurality of predetermined points and corners of the edge of the culture pond 2, each guiding column 20 including a vertical shaft 21, a float 22 and a pulley 23 (as shown in fig. 4), the lower end of the vertical shaft 21 being fixed to the bottom of the culture pond 2, the upper end extending out of the water surface, the float 22 being disposed on the vertical shaft 21, the pulley 23 having a central hole disposed on the vertical shaft 21 and being freely rotatable above the float 22, the pulley 23 being floated on the water surface by the buoyancy of the float 22. Furthermore, the pulley 23 has a guide groove 231 corresponding to the towing pipe 10 for guiding the towing pipe 10 to slide.

The driver 30 includes a motor 31, a speed reduction mechanism 32, a transmission shaft 33, a transmission case 34, a gear set 35, and a driving gear set 36, and the output power of the motor 31 is reduced by the speed reduction mechanism 32 and then transmitted to the transmission case 34 through the transmission shaft 33. The transmission case 34 is a waterproof case-type structure, for example, includes a driving gear set 35 and a plurality of driven gear sets 35', and is linked with the transmission shaft 33, which is known in the art and will not be further described.

Referring to fig. 2 and 3, the transmission box 34 is fixed to the shore of the culture pond 2, at least a portion of which extends above the water surface, the driving gear set 35 coaxially supports the driving gear set 36, and the plurality of driven gear sets 35 'coaxially support the plurality of driven gear sets 36'; the driving wheel set 36 and the plurality of driven wheel sets 36' are disposed above the transmission case 34.

The driving wheel set 36 comprises a pair of left and right driving wheels having sliding grooves 361 corresponding to the outer diameter of the towing pipe 10, and the left and right driving wheels rub against the outer surface of the towing pipe 10 to push. Each of the driven wheel sets 36 'includes a pair of left and right driven wheels, which have chutes 361' corresponding to the outer diameters of the towing pipe 10 and are respectively disposed on the left and right sides of the towing pipe 10 to assist in propelling the towing pipe 10. Further, a predetermined gap is maintained between the left and right driving wheels of the driving wheel set 36 and between the left and right driven wheels of each driven wheel set 36'.

A fishing device 40, comprising a first curved bar c1, an extension bar 41, and a trawl 43, wherein the first curved bar c1 is a n-shaped structure formed by a plurality of zigzag sections, one end of which comprises a vertical section and is pivoted to the towing pipe 10 through a joint member J (as shown in fig. 2 a), and the other end of which comprises a horizontal section; one end of the extension rod 41 is connected to the horizontal section, the other end is a free end, extends towards the center direction of the culture pond 2, and the free end is at least provided with a buoy 42 to float the extension rod 41 out of the water surface; one end of the trawl 43 includes an expanded opening, the upper end of the opening is hung on the extension rod 41 via a tether, the lower end is hung to the water surface, and the trawl gradually decreases from the opening in a funnel shape toward the other end, and the end is connected with a collection basket 44.

As also shown in fig. 5, it can be understood that the diameter of the first curved rod c1 should be slightly smaller than the set clearance of the driving wheel set 36 and the driven wheel set 36 ', so that when the towing pipe 10 tows the fishing device 40 to go around, the first curved rod c1 can pass between the left and right driving wheels of the driving wheel set 36 and the left and right driven wheels of the driven wheel set 36'. Moreover, the first curved lever c1 passes through the pivotable joint member J, and the vertical section of the first curved lever c1 can be automatically centered when passing through the set gaps of the driving wheel set 36 and the driven wheel set 36'. Furthermore, the trawl 43 and the collecting basket 44 of the fishing device 40 can be changed according to the size of the plankton cultured in the culture pond 2.

Preferably, a second curved lever c2 is further included, which is arranged in front of the fishing device 40, the second curved lever c2 is in a u-shaped structure like the first curved lever c1, one end of which includes a vertical section pivotally connected to the towing pipe 10 via a joint member J, the other end of which is connected with a buoy 45, and a tether 451 connected from the buoy 45, the free end of the tether 451 towing the other end of the extension rod 41, so as to evenly force both ends of the extension rod 41 (as shown in fig. 1).

Preferably, a pair of flexible vanes 461 is provided in front of the second curved lever c2, the flexible vanes 461 being axially connected to the trailing tube 10 via a freely rotatable shaft 46, axially collapsible when passing through the set gap of the driving wheel set 36 and the driven wheel set 36'; the pair of flexible blades 461 can rotate along with the propulsion of the towing pipe 10 by the resistance of water to drive the plankton swimming back to the shore of the culture pond and slightly moving away from the shore, so that the following trawl net 43 can catch the plankton in the water into the net (as shown in fig. 1 and 2).

Preferably, a plurality of flexible bird repelling rods 48 are further included, which are respectively disposed on a plurality of predetermined points of the towing pipe 10, one end of each bird repelling rod 48 includes an upright section, which can be fixedly connected to the towing pipe 10 through the set gaps of the driving wheel set 36 and the driven wheel set 36' of the driver 30, and the other end forms a curved arm extending in a direction of the shore of the cultivation pond. The dragging pipe 10 is capable of moving around the periphery of the culture pond, thereby automatically driving birds standing on the shore to prevent the birds from pecking plankton in water and avoiding the pollution of germs caused by the birds.

Referring to fig. 6 and 7, the present invention may further comprise a feeding device 50, wherein the fishing device 40 can be detached from the towing pipe 10 during non-harvesting season or time period, and the feeding device 50 can be replaced to achieve the purpose of feeding and material spreading automation. The feeding device 50 comprises a third curved bar c3, a feeding barrel 51, a float 52, a feeding screw 53 and a paddle wheel 54, wherein the third curved bar c3 is n-shaped like the first curved bar c1, one end of the third curved bar c3 is pivoted and fixed to the towing pipe 10 through a joint member J, and the other end is a free end extending towards the center of the culture pond 2.

As shown in the drawings, the first end of the feeding cylinder 51 is supported in a floating manner on the horizontal section of the third curved bar c3, the feeding cylinder 51 is hollow and closed at two ends, a feeding port 511, such as a funnel shape, is provided on the top surface of the first end, and a discharging port 512 is provided on the upper portion of the axial side surface of the feeding cylinder 51; the float 52 is arranged at the second end of the feeding cylinder 51, so that the float floats on the water surface; the feeding screw 53 is axially pivoted at the center of the feeding cylinder 51, when the feeding screw 53 rotates, the bait can be conveyed from the first end to the second end, and the feeding screw 53 comprises an extending end extending out of the outer side of the second end of the feeding cylinder 51; the paddle wheel 54 is fixed to the extending end of the feeding screw 53, and the paddle wheel 54 includes a plurality of paddles that rotate with the water resistance as the feeding barrel 51 advances and drives the feeding screw 53 to rotate.

Furthermore, at the set point of the advancing stroke of the feeding cylinder 51, a working platform 60 is extended from the shore to the water surface, and a filler cylinder 61, such as a funnel shape, is arranged, so that the feeding cylinder 51 can be supplemented with filler above the feed opening 511 of the feeding cylinder 51 (as shown in fig. 7).

Preferably, the discharge port 512 is elongated along the axial direction of the feeding cylinder 51, the upper edge of the discharge port 512 includes a protruding cap to prevent water from entering the feeding cylinder 51 to damp the interior, and a guide plate extends inward from the lower edge of the discharge port 512, along which bait can be discharged when the feeding screw 53 rotates to stir the bait. Preferably, a rain cover 511a is further included to cover the outside of the inlet 511 of the feeding cylinder 51 to prevent the entry of rain water and the moisture therein.

Preferably, the apparatus further comprises a fourth crank disposed in front of the feeding barrel 51, the fourth crank is in an inverted-U-shaped configuration like the first crank c1, and one end of the fourth crank comprises a vertical section pivotally connected to the towing pipe 10 via a joint member J; a buoy 55 is connected to the other end, and a tether is connected to the buoy, and the free end of the tether drags the second end of the feeding barrel 51, so that the two ends of the feeding barrel 51 are uniformly stressed (as shown in fig. 1).

In conclusion, by applying the plankton collecting device, the catching device can be dragged to bypass along the periphery of the culture pond through the dragging pipe optionally in the season and time period of separate ponds or harvesting, and plankton in water can be caught into the nets one by one at the passing positions; meanwhile, birds standing on the shore can be automatically driven through the bird driving rod on the towing pipe, so that the birds can be prevented from pecking the fish fry and the pollution of germs caused by the birds can be avoided. Or the feeding device can be replaced in the non-harvesting season or time period, and the feeding device is dragged to move around along the periphery of the culture pond by the dragging pipe so as to automatically scatter materials and feed; moreover, the driver can also be controlled by the controller to set the time and times of operation every day so as to achieve the purpose of feeding and sprinkling automatically. In addition, the present invention can design one or more sets of drivers according to the requirement of the area size of the culture pond.

Although the preferred embodiment of the plankton collecting apparatus of the present invention has been described by way of example only with the towing device disposed on the periphery of the cultivation pond, it is not limited to the disclosed embodiment, and the towing device disposed on the periphery of the cultivation pond may not depart from the spirit and scope of the present invention; in other words, many variations will occur to those skilled in the art without departing from the scope of the invention, which is defined in the appended claims.

Description of the symbols

1 Plankton collecting device

10 trailing tube

2 culture pond

20 guide post

21 vertical shaft

23 Pulley

231 guide groove

30 driver

31 electric motor

32 speed reducing mechanism

33 drive shaft

34 transmission case

35 drive gear set

35' driven gear set

36 driving wheel set

36' driven wheel set

361. 361' chute

40 fishing device

41 extension rod

42 buoy

43 trawl net

44 collecting basket

45 float bowl

46 rotating shaft

461 vane

48 bird repelling rod

50 feeding device

51 feeding cylinder

511 feed inlet

511a rain cover

512 discharging port

52 buoy

53 feeding screw

54 paddle wheel

55 float bowl

60 working platform

61 Filler barrel

c1 first crank

c2 second crank

c3 third crank

c4 fourth crank

J-joint component

T towing device.

Claims

1. A plankton collection apparatus, comprising:

the towing device is arranged around the culture pond; and

the catching device is connected to the set position of the dragging device;

wherein, the dragging device drives the catching device to move in the culture pond along the periphery of the culture pond, and the catching device collects plankton;

the towing device comprises a towing pipe, a plurality of guide columns and a driver; the dragging pipe is arranged around the periphery of the culture pond to form a closed circulation loop, and the fishing device is connected to the dragging pipe at the set position; the guide posts are respectively arranged along the periphery of the culture pond and are used for receiving the dragging pipe; the driver comprises a motor, a speed reducing mechanism and a driving wheel set, wherein the output power of the motor drives the driving wheel set after being reduced by the speed reducing mechanism, and the driving wheel set drives the dragging pipe to move under the guidance of the plurality of guide columns;

the driving wheel set comprises a pair of left and right driving wheels which are coupled to the speed reducing mechanism, and the towing pipe is clamped between the left and right driving wheels; the driver also comprises a plurality of driven wheel sets, each driven wheel set comprises a pair of left and right driven wheels, and the towing pipe clamp is arranged between the left and right driven wheels.

2. The plankton collecting apparatus according to claim 1, wherein the catching device comprises a first curved bar, an extension bar and a funnel-shaped trawl, one end of the first curved bar is pivoted to the trawl pipe through a joint member, and the other end is fixedly connected with the extension bar; the funnel-shaped trawl net is arranged on the extension rod.

3. The plankton collection apparatus of claim 2 wherein the catching device further comprises a second curved bar having one end pivotally connected to the towing pipe via a joint member and located in front of the first curved bar, and the other end provided with a buoy and connected to a tether having a free end connected to the extension bar.

4. The plankton collection apparatus of claim 1 further comprising a flexible vane pivotally connected to the draft tube and located forward of the harvesting device; the flexible vane is dragged by the dragging pipe to advance and rotate by the pool water of the culture pond.

5. The plankton collection apparatus of claim 1 further comprising a plurality of flexible bird repelling rods assembled to the towing pipe and extending and protruding toward the exterior of the culture pond.

6. The plankton collection apparatus of claim 1 further comprising a feeding device comprising a feed cylinder, a feed screw, and a paddle wheel; one end of the feeding cylinder is connected to the towing device and floats on the water surface of the culture pond, and bait is filled in the feeding cylinder and a material release port is formed in the feeding cylinder; the feeding screw rod is axially pivoted in the feeding cylinder and comprises an extending end which extends out of the outer side of the feeding cylinder; the paddle wheel is fixedly connected to the extending end of the feeding screw rod, and the paddle wheel is dragged by the dragging pipe and rotates under the action of pond water of the culture pond to rotate the feeding screw rod, so that the bait is pushed to be released from the material release port.

7. The plankton collecting apparatus according to claim 6, wherein the discharge opening is elongated along the axial direction of the feeding cylinder, the upper edge of the discharge opening comprises a protruding brim, and the lower edge of the discharge opening extends inward to form a guide plate.

8. The plankton collection apparatus of claim 6 further comprising a stuffing cylinder disposed above the culture pond; the top of the feeding cylinder is provided with a feeding hole; when the feeding cylinder moves below the filling cylinder and the feed inlet corresponds to the filling cylinder, the filling cylinder supplements bait to the feeding cylinder.