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  • US20130073239A1 US13/238 964 US201113238964A US2013073239A1 US 20130073239 A1 US20130073239 A1 US 20130073239A1 US 201113238964 A US201113238964 A US 201113238964A US 2013073239 A1 US2013073239 A1 US 2013073239A1 Authority US United States Prior art keywords electric mobile monitor water electrofishing Prior art date 2011-09-21 Legal status The legal status...

  • It is very possible It works off the size of the fish Since Catfish are generally larger and bottom dwellers the drag line stay on the bottom and since to Voltage is low the small fish aren t effected by the small amount of current due to their size the larger catfish however absorb more current stunning them temporarily bringing them to the surface how ever since this is a pulse of...

  • Aug 26 2003 0183 32 The electrofishing box that you can purchase converts the electricity from AC coming from the generator to DC I think this process is called rectification big pond you would know better than me My understanding is that rectifier gives the DC current a pulsing effect around 60 times per second...

  • Basic Electrofishing Systems Figure 2 diagrams the basic layout of an electrofishing system In battery operated units the battery produces continuous 12-volt DC power If the electrofishing unit served only to interrupt the power a peak pulse of 12 volts would be produced but this is not enough power to stun fish...

  • Sep 24 2013 0183 32 Figure 4 Schematic diagram of electrofishing for Ensis spp Figure 17 Breen et al 2011 In situ Recovery Once the electrodes were switched off the diver placed quadrat frames 1 m 2 base n = 2 where the electrodes had been active within minutes of switching off the electricity time between electrodes turned off and quadrats placed...

  • High Voltage Generator-Electrofishing Play Video CAUTON High Voltage If you are a novice amateur in electronics and this is one of your first projects better don t begin with this project CAUTON This article is free assembly of circuits placed on the Internet mostly gather...

  • Jan 25 2010 0183 32 I have watched a few programs on tv that specificaly use a petrol generator on a boat all I am asking is what lenth should the and - electodes be in order to make my setup work I have looked for devices in my country but can t find any and I really don t have the funds to have a...

  • the electrofishing theory text and diagrams presented here has been obtained from this source Many thanks also to Galloway Fisheries Trust the Environment Agency and Fisheries Research Services Freshwater Laboratory for providing photographs for the training course...

  • The flow diagram in Figure 2 and associated text in this section provide a step-by-step decision making guide you can choose between input devices GPS laser range finder or finger The second button allows you to edit the drawn polygon Both electrofishing methods are applicable and effective in rivers of a depth up to 2 m Figure 4...

  • The 18 electrofishing boat can be used with either a standard straight electrode array sampler type A or with a Figure Diagram of the net pole/eleCtrOde apparatus used with the Sportyak-genetator and long-line device is stationary and the Capture of fish is dependent on...

  • Device is switched by inserting a password which protects from unauthorised use there is another password which after inserting the electrofisher does not give high voltage- only display panel is on- this function is necessary for some countries where electrofishing is forbidden Overload and polarity protection Industrial internal outlook...

  • May 19 2011 0183 32 FIG 1 is a prior art diagram of the use of a mobile electrofisher Now referring to FIG 3 which depicts an improved mobile electrofishing device The improved mobile electrofishing device that conductivity 330 temperature 340 and electric field probles 350...

  • wiring diagrams for stone crushing plants schematic diagram of crusher plant ZME is a leading global manufacturer of crushing stone crushing plant machinery diagram stone crusher plant diagrams rijschoolhapnl dust cover for screening and crushing plant Stone Crusher Machine Price We all know that Malaysia is a big country that demands for...

  • ELECTROFISHING WITH SAMUS725M - This web site is designed to present a fishing tool for electrofishing - the modern electrofisher - SAMUS725M It is named differently in various countries electrofishing rod electricshocker fishing converter fishing generator electric fishing-rod etc Using electrofishers I catch from a dozen or so of...

  • We have been asking a lot of questions and doing a lot of listening Finally an affordable solution for Electrofishing The HT-2000 meets and exceeds all aspects of the Electrofishing Guidelin Battery and electrical circuits are contained in a hermetically sealed rugged case integrated on our non-conductive and comfortable pack frame...

  • US3043041A US738686A US73868658A US3043041A US 3043041 A US3043041 A US 3043041A US 738686 A US738686 A US 738686A US 73868658 A US73868658 A US 73868658A US 3043041 A US3043041 A US 3043041A Authority US United States Prior art keywords circuit capacitor fishing voltage impulse Prior art date 1957-08-01 Legal status The legal status is an assumption and is not a...

  • Feb 01 2016 0183 32 The auto-transformer was fitted with an RCD Residual Current Device and a remote kill switch to control the output A Dinse type connector positive locking was used to connect the transformer to the welding cables and at the opposite end to the underwater electrod Schematic diagram of electrofishing for Ensis spp Not to scale...

  • Simple Electric Shock Device Ask Question Asked 9 years 11 months ago Active 4 years 6 months ago Viewed 29k times 11 3 \ \begingroup\ Can anyone tell me how to make a simple electric shocking device like a electric pen or hand buzzer style I ve seen people use piezoelectric elements from lighters is that correct but I would like...

  • A fish shocker was once a relatively popular way to harvest large numbers of fish from streams rivers ponds and lak Fishermen often used the magnetos from hand-crank telephones to provide the electrical power for the shocker scooping up all the fish they...

  • In this device the eggs are lifited from the bottom and collected in a net gauze chamber by salt water pumped into the system Figure 32 Eggs of Coregonus lavaretus have been collected by a SCUBA diver with a pipette Bagenal unpublished from a sandy bottom and...

  • Hire someone with considerable experience with electrofishing Contact your local home extension service the fish and wildlife commission in your area or call a local university and ask to talk to someone in the biology department -- you can ask for a recommendation from a graduate student who has experience and access to the university s equipment and who may be willing to work inexpensively...

  • Electrofishing is a management tool used to analyze the quantity and type of fish in a pond lake or river The water is shocked by an electric current which temporarily paralyzes the fish allowing them to be counted However electrofishing should not be performed without at least one experienced personnel and should not be performed in...

  • Device is intended to stun bottom feeders allowing them to float the surface for tagging identifying and relocating Scale fish can also be stunned but it is more effective on bottom fish Unit operates from your boat s 12 volt battery or can be used with a rechargeable battery of 20 to 30 amp hours capacity Simple to use unit contains front...

  • I have been making the ultimate fishing device in the USA for about 14 years The catfish stunner is simply an electrical pulse generator/ catfish caller that makes catfish swim to the surface so you can catch them It sends a pulse of electricity through the water into the catfish The catfish become confused so they just swim...

  • ELECTROFISHER SAMUS725M - professional fishing device for electrofishing This web site is designed to present a fishing tool for electrofishing - the modern electrofisher - SAMUS725M It is named differently in various countries electrofishing rod electricshocker fishing converter fishing generator electric fishing-rod etc...

  • Nov 2 2018 - How to make fish shock Electric machine High Voltage by using 3A transformer With B688 x12 or How to make fish shock Electric machine Here Diagram For How to...

  • Sep 17 2019 0183 32 device which is required to be operational at all tim The device must provide details of both vessel position recorded every 10 seconds and also when the specified electrofishing gear is being used ie fine scale information on individual fishing locations...

  • Electrofishing is a common sampling technique used by fisheries biologists to sample fish populations In the simplest sense electrofishing is the technology of capturing fish by producing an electric field in water of sufficient intensity to cause strong neurological responses Vibert 1967a The use of electrofishing as a sampling...

  • Page 2 STEERING PARAMETERS of SAMUS-725G Consumed current in the amperes Quantity of used ampere-hours from battery Time of electrofishing Indicator of battery unloading Blackout of display panel in case of night fishing optional Device is switched by inserting a password which protects from unauthorised use there is another password which...

  • Aug 17 2013 0183 32 A typical sampling of fish from electrofishing Electrofishing in its most basic sense is the use of a special boat designed to create an underwater arc of electricity generated on board by a gas powered generator to gently stun fish in a random fashion so they can be collected counted identified weighed measured and released unharmed back into their environment...

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