Agriculture
Middle school science adventures
Watching out for vultures
Got Milk? How?
Amphibians
Salamanders
Newts
Salamanders and Newts
Animals
Helping the Cause of Macaws
Odor-Chasing Penguins
Lucky Survival for Black Cats
Behavior
Making light of sleep
The chemistry of sleeplessness
A brain-boosting video game
Birds
Vultures
Blue Jays
Roadrunners
Chemistry and Materials
Fog Buster
The newest superheavy in town
The chemistry of sleeplessness
Computers
Hitting the redo button on evolution
Graphene's superstrength
Two monkeys see a more colorful world
Dinosaurs and Fossils
Winged Insects May Go Way Back
A Big, Weird Dino
An Ancient Spider's Web
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
Earth
Greener Diet
A Volcano's Deadly Ash
Drilling Deep for Fuel
Environment
When Fungi and Algae Marry
Shrinking Fish
Power of the Wind
Finding the Past
Your inner Neandertal
Preserving Ancient Warrior Paint
Fakes in the museum
Fish
Barracudas
Flounder
Skates
Food and Nutrition
Chew for Health
Recipe for Health
The Color of Health
GSAT English Rules
Pronouns
Who vs. That vs. Which
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
Mastering The GSAT Exam
Results of GSAT are in schools this week
GSAT Exams Jamaica Scholarships
GSAT Exam Preparation
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
GSAT Mathematics
Detecting True Art
Play for Science
Deep-space dancers
Human Body
Running with Sneaker Science
The tell-tale bacteria
Football Scrapes and Nasty Infections
Invertebrates
Crustaceans
Crabs
Invertebrates
Mammals
Wombats
Yaks
Cats
Parents
Children and Media
Raise a Lifelong Reader by Reading Aloud
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
The Particle Zoo
Black Hole Journey
Speedy stars
Plants
Plants Travel Wind Highways
Farms sprout in cities
Seeds of the Future
Reptiles
Snakes
Garter Snakes
Chameleons
Space and Astronomy
A Dead Star's Dusty Ring
A Great Ball of Fire
Solving a Sedna Mystery
Technology and Engineering
Crime Lab
Toy Challenge
Drawing Energy out of Wastewater
The Parts of Speech
What is a Verb?
Pronouns
What is a Noun
Transportation
Middle school science adventures
Robots on a Rocky Road
Tinkering With the Basic Bike
Weather
Where rivers run uphill
Watering the Air
Warmest Year on Record
Add your Article

Perches

Perch are a group of freshwater fish belonging to the family Percidae. Perch have "rough" or ctenoid scales. When looking through a microscope, the scales look like plates with growth rings and spikes on their top edges. The external appearance of the perch is simple enough. The dorsal side of the fish consists of an upper maxilla and lower mandible for the mouth, a pair of nostrils, and two lidless eyes. On the posterior sides are the operculum, which are used to protect the gills. Also there is the lateral line system, which is sensitive to vibrations in the water. Perch have a pair of pectoral and pelvic fins. On the anterior end of the fish, there are two dorsal fins. The first one is spiny and the second is soft. There is also an anal fin, which is also considered spiny, and a caudal fin. Also there is a cloacal opening right behind the anal fin. All perciform fish share the perch's general morphology. Most authorities recognize three species of perch: The European perch (Perca fluviatilis) is found in Europe and Asia. It is usually dark green with red fins. The European perch has been successfully introduced in New Zealand and Australia where it is known as the redfin perch or English perch. The Balkhash perch (Perca schrenkii) is found in Kazakhstan, (in Lake Balkhash and Lake Alakol), Uzbekistan, and China. It is very similar to the European perch, and grows to a comparable size. The Yellow perch (Perca flavescens), smaller and paler than the European perch, is found in the United States and Canada.

Perches
Perches








Designed and Powered by HBJamaica.com™