Agriculture
Middle school science adventures
Treating peanut allergy bit by bit
Growing Healthier Tomato Plants
Amphibians
Tree Frogs
Newts
Frogs and Toads
Animals
Firefly Delight
Glimpses of a Legendary Woodpecker
Life on the Down Low
Behavior
Video Game Violence
Meet your mysterious relative
From dipping to fishing
Birds
Vultures
Peafowl
Cardinals
Chemistry and Materials
Lighting goes digital
When frog gender flips
The solar system's biggest junkyard
Computers
Play for Science
New twists for phantom limbs
Toxic Dirt + Avian Flu = Science Fair Success
Dinosaurs and Fossils
Early Birds Ready to Rumble
Meet the new dinos
Dino Babies
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Earth
Earth Rocks On
Drilling Deep for Fuel
Petrified Lightning
Environment
The Birds are Falling
Power of the Wind
A Change in Leaf Color
Finding the Past
Words of the Distant Past
A Long Trek to Asia
A Plankhouse Past
Fish
Sharks
Whale Sharks
Swordfish
Food and Nutrition
How Super Are Superfruits?
Chocolate Rules
Building a Food Pyramid
GSAT English Rules
Who vs. That vs. Which
Whoever vs. Whomever
Pronouns
GSAT Exam Preparation Jamaica
Ministry of Education Announces 82 GSAT Scholarships for 2010
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
GSAT Scholarship
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
GSAT Exam Preparation
42,000 students will sit for the GSAT Exam in two weeks
GSAT Mathematics
Setting a Prime Number Record
10 Common Mistakes When Preparing for the GSAT Math Test
How to Slice a Cake Fairly
Human Body
Electricity's Spark of Life
A Long Haul
Kids now getting 'adult' disease
Invertebrates
Invertebrates
Flatworms
Corals
Mammals
Opposum
Chipmunks
Wolves
Parents
The Surprising Meaning and Benefits of Nursery Rhymes
How children learn
What Not to Say to Emerging Readers
Physics
Powering Ball Lightning
Black Hole Journey
IceCube Science
Plants
White fuzzy mold not as friendly as it looks
A Change in Leaf Color
Assembling the Tree of Life
Reptiles
Tortoises
Geckos
Chameleons
Space and Astronomy
Asteroid Moons
Phantom Energy and the Big Rip
A Planet from the Early Universe
Technology and Engineering
Toy Challenge
A Micro-Dose of Your Own Medicine
Squeezing Oil from Old Wells
The Parts of Speech
Problems with Prepositions
What is a Preposition?
Countable and Uncountable Nouns
Transportation
Reach for the Sky
Are Propellers Fin-ished?
Morphing a Wing to Save Fuel
Weather
The solar system's biggest junkyard
Recipe for a Hurricane
A Change in Climate
Add your Article

Sturgeons

Sturgeon (Acipenser) is a genus of freshwater fish, which includes twenty known species from European, Asiatic and North American rivers. They spend a large part of the year in the sea, but periodically migrate to large rivers to deposit their spawn or for unknown reasons. Only a few species of sturgeon are confined to fresh water. No species occur in the tropics or in the southern hemisphere. Sturgeons generally range in size from 8 to 11 feet (2.5 to 3.5 m) in length, and some species grow to a much larger size. Sturgeon are bottom-feeders. They stir up the soft bottom of the sea with their projecting wedge shaped snout, and use their sensitive barbels detect shells, crustaceans and small fish to eat. Since they don't have teeth, they are unable to seize larger prey. Early in summer, sturgeon migrate to rivers and freshwater lakes in large shoals for breeding purposes. The ova are very small and very numerous! One female is said to have produced about three million in one season. The ova of some species have been observed to hatch very shortly after fertilization. The growth of the young is very rapid, but we do not know how long the fry remain in fresh water before their first migration to the sea. After the young sturgeon have matured, their growth slows substantially, but will continue for many years. Frederick the Great placed a number of them in the Garder See Lake in Pomerania about 1780; some of these were found alive in 1866. Professor von Baer also claims that he has directly observed that the Hausen (Acipenser huso) can live up to 100 years. Caviar: In places where sturgeon is harvested in large quantities, like the rivers of southern Russia and on the great lakes of North America, their flesh is dried, smoked or salted. The ovaries, which are very large, are prepared for caviar through beatings with switches, and then pressed through sieves, so that the eggs can be collected in a tub. Sturgeon Trivia: Some people believe that sturgeon scales are hard enough to repel bullets. Isinglass, a form of gelatine from sturgeon fish bladders, is used as processing aids in the "fining" or filtration process of wine making. In the plot of Gordon Korman's MacDonald Hall books (especially in the third book, Beware the Fish) there are many references to this kind of fish: the headmaster of the school is called Mr. Sturgeon, and is nicknamed The Fish.

Sturgeons
Sturgeons








Designed and Powered by HBJamaica.com™