QUE SIGNIFIE ELECTROFISHING EN ANGLAIS
Electrophishing
L'électrophishing utilise l'électricité pour étourdir les poissons avant d'être capturés. L'électrophishing est une méthode commune d'enquête scientifique utilisée pour échantillonner les populations de poissons afin de déterminer l'abondance, la densité et la composition des espèces. Lorsqu'il est correctement exécuté, l'électrostache n'entraîne aucun dommage permanent pour les poissons, qui retournent à leur état naturel en seulement deux minutes après avoir été étourdi. L'électrophishing s'appuie sur deux électrodes qui fournissent du courant dans l'eau pour étourdir les poissons. Une différence de haute tension entraîne l'écoulement d'un courant de l'anode à la cathode, lorsqu'un poisson rencontre un gradient de potentiel suffisamment important sur ce chemin, il devient affecté par l'électricité. Habituellement, le courant continu pulsé est appliqué, ce qui provoque une galvanotaxis dans le poisson. Galvanotaxis est une convulsion musculaire incontrôlée qui entraîne la natation des poissons vers l'anode. Au moins deux personnes sont requises pour un équipage électrique efficace: une pour faire fonctionner l'anode, et l'autre pour attraper le poisson étourdi avec un filet.
définition de electrofishing dans le dictionnaire anglais
La définition de l'électropêche dans le dictionnaire est la pratique consistant à attraper du poisson en l'étourdissant avec du courant électrique ou en l'attirant par l'utilisation de l'électricité.
MOTS EN ANGLAIS EN RAPPORT AVEC «ELECTROFISHING»
electrofishing ·
homemade ·
voltage ·
boat ·
backpack ·
equipment ·
sale ·
safety ·
electrofishing ·
uses ·
electricity ·
stun ·
fish ·
before ·
they ·
caught ·
common ·
scientific ·
survey ·
method ·
used ·
sample ·
populations ·
determine ·
abundance ·
density ·
species ·
composition ·
when ·
performed ·
spend ·
time ·
florida ·
freshwater ·
systems ·
have ·
seen ·
boats ·
action ·
biologists ·
these ·
vessels ·
gather ·
smith ·
root ·
fisheries ·
technology ·
model ·
standard ·
flat ·
bottomed ·
aluminum ·
designed ·
light ·
medium ·
duty ·
operations ·
shallow ·
halltech ·
aquatic ·
finally ·
affordable ·
solution ·
meets ·
exceeds ·
aspects ·
guidelines ·
battery ·
electrical ·
circuits ·
with ·
view ·
10 LIVRES EN ANGLAIS EN RAPPORT AVEC «ELECTROFISHING»
Découvrez l'usage de
electrofishing dans la sélection bibliographique suivante. Des livres en rapport avec
electrofishing et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Comparison of Two
Electrofishing Gears (backpack and ...
To lessen this reduced catchability, electrofishing methods that capture more
individuals on the first pass are most desirable (Peterson 2004). Multiple pass
electrofishing is used as an attempt to reduce the influence of sampling biases (
Zippin ...
2
Assessing the Sustainability and Biological Integrity of ...
Number of species Lower mainstream Electrofishing <14 14-27 >27 Upper
mainstream Electrofishing <14 14-27 >27 Melton Hill Electrofishing <13 13-24 >
24 2. Number of Lepomid sun fish species Lower mainstream Electrofishing <2 2-
4 >4 ...
3
100 Weird Ways to Catch a Fish
ELECTROFISHING A shocking practice Touch a short-circuited wire, and you
know the power of electricity to incapacitate. Run current through a fish, and it too
will be stunned. But electrofishing is a specialized practice, usually performed by
...
4
Ecological Census Techniques: A Handbook
During electrofishing, anodes are often hand held, while the cathode (a multi-
strand copper wire or even a metallic plate) trails behind the boat or operator.
The charge is usually kept on during fishing. The key to electrofishing is always to
be ...
William J. Sutherland,
2006
5
Assessment of fish habitat, water quality, and selected ...
Chena River flow Range of Date (2001) Species (common name) Vicinity Method
Total total length (ft3/s) REACH 7 (mm) July 10 2,245 N11 and N12 (Danby Street
bridge) Electrofishing Alaska blackfish 25 14-145 (same sample as reach 6) ...
6
Monitoring Vertebrate Populations
Table 7.1 Summary of Studies Comparing Different Gears in Different Habitats
Gears compared Habitat Preferred gear Source Electrofishing, seines
Electrofishing. seines Electrofishing. drop net. pop net Electrofishing. visual
counts from ...
William L. Thompson, Gary C. White, Charles Gowan,
1998
7
The Everglades, Florida Bay, and Coral Reefs of the Florida ...
Routine electrofishing at a subset of the study sites was begun in 1997. We
visited the study sites five times per year during February, April, July, October,
and December. These months coincide with important transitional phases of
Everglades ...
In electrofishing, the direct influence of electric current in the water on the fish is
exploited. The simplest electrofishing situation involves use of direct current (DC)
and proceeds as follows. If an anode and a cathode are held some distance ...
Frederich W. Tesch, John Thorpe, Ray J. White,
2008
9
Sensory Processing in Aquatic Environments
Electrofishing may be having a deleterious impact on platypus in Australia. Forty
thousand electroreceptive pores in the platypus bill lower its electrical impedance
and make it vulnerable to the intense current generated by the electrofishing ...
Shaun P. Collin, N.Justin Marshall,
2003
10
Crayfish in Europe as Alien Species
Crayfish are often caught during electrofishing exercises to study fish populations
, but the method has also been used specifically for catching crayfish. Huner (
1988) reported that special boats with a bow-mounted trawl and a pulsed, direct ...
Francesca Gherardi, David M. Holdich,
1999
10 ACTUALITÉS CONTENANT LE TERME «ELECTROFISHING»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
electrofishing est employé dans le contexte des actualités suivantes.
Newest aquatic invader: goldfish
Such removals usually rely on nets or electrofishing, which stimulates the muscular system of fish and compels them to swim toward the source ... «Daily Inter Lake, juil 15»
Week of July 2
Black Bullhead -- Excellent: A very large number of bullheads are being seen while crews are electrofishing on Lost Island. These large ... «Dickinson County News, juil 15»
Saving Colorado's State Fish
Nehring is electrofishing: sending a current through the water to attract and stun the fish, making them easier to catch. Nehring hopes to find a ... «NET Website, juil 15»
Researchers seek water test for invasive species detection
... and other concerned members of the public, followed by many hours of netting, angling and electrofishing by state biologists, says Kinnison. «Phys.Org, juil 15»
Small fishermen lending a hand
It's time the government eliminated trawlers, push nets and electrofishing from the Gulf of Thailand. "We are convinced if we end these fishing ... «Bangkok Post, juil 15»
Largemouth Bass Excellent is Saturday Morning Fishing Report
An electrofishing survey was conducted on 5-29-15. Bluegill up to 9.5 inches and largemouth bass up to 15 inches were collected. Several ... «KIOW, juil 15»
July 2nd Iowa DNR Fishing Report
Black Bullhead – Excellent: A very large number of bullheads are being seen while crews are electrofishing on Lost Island. These large ... «KIWARadio.com, juil 15»
Report sheds new light on Wixom Lake fish population
Last year the lake was surveyed again, using a variety of nets and electrofishing, collecting 5,275 fish of 27 species and one hybrid. «Midland Daily News, juil 15»
Lure of the lake: It's summertime, and the fishing is electric
When their bass electrofishing is done, the men find a spot on the shore of Dutch Second Creek and begin the task of documenting their catch, ... «Salisbury Post, juil 15»
Wisconsin regulators work to balance big bass with lots of them
Electrofishing data also confirmed an increase in relative abundance for both adult and juvenile largemouth bass, according to the study ... «Great Lakes Echo, juin 15»