The ruffe also has a large, spiny dorsal fin likely distasteful to its predators.

The ruffe has the capacity to reproduce at an extremely high rate.

A Ruffe usually matures in two to three years, but a ruffe that lives in warmer waters has the ability to reproduce in the first year of life.

The introduction of the ruffe seems to be causing much damage and has become a big

The ruffe also has an excepional ability to detect water vibrations through organs called neuromasts.

The ruffe has the ability to overtake many other fish species, and consequently damage the Great Lakes ecosystems.

Not only has the ruffe become an inconvenience but, it is also the first invasive species to have been labeled a nuisance by the Non-indigenous Aquatic Nuisance Prevention and Control Program.

also the ruffe has a spiky fin

The population is threatened by deteriorating water quality and by the ruffe, a fish introduced to the lake in the 1980s and now eating the eggs and fry of gwyniad.

48 forms ( species and infraspecific taxa ) of fish have been encountered in the lake, including roach, carp bream, zander, European perch, ruffe, endemic variety of smelt, two varieties of Coregonus albula ( vendace ), eight varieties of Coregonus lavaretus, a number of other Salmonidae as well as, albeit rarely, endangered European sea sturgeon.

Therefore, having more ruffe in the water, leads to less food for other fish.

Life, for the Eurasian ruffe, starts as an egg, like other fish.

The chemical lampricide TFM kills ruffe, but leaves other fish untouched.

When injured, a ruffe will release this pheromone into the water to warn other ruffe to stay away.

Second, the pheromone is species specific, so it would only repel the ruffe, none of the other fish.

The ruffe is usually 4-6 inches ( 10 – 15 cm ) in length and will never exceed 10 inches ( 25 cm ), but is a very aggressive fish for its size.

The darters, perches, and their relatives are in this family: well-known species include the walleye, ruffe, and three species of perch.

** Donets ruffe, Gymnocephalus acerinus.

** Danube ruffe, Gymnocephalus baloni.

Of ruffe raffe roaring, with thwick thwack thurlery bouncing.

It also contains the endemic gwyniad, now listed as critically endagered by the IUCN due to the introduction of the invasive and non native ruffe.

They are dominated by the genera Gobio, Romanogobio, Squalius and Chondrostoma and contain such species as carp, Prussian carp, roach, bream, Silver Bream, pike, perch, ruffe, chalcalburnus, Sprattus, Mugil and others.

Its common names are ambiguous – " ruffe " may refer to any local member of its genus Gymnocephalus, which as a whole is natively endemic to Eurasia.

The most obvious features to recognize a ruffe are the ruffe's large, continuous dorsal fin and its slightly downturned mouth.

In Eurasia, the ruffe diet mainly consists of zoobenthos: chironomids, small aquatic bugs and larvae, which are all found in the Benthic zone of the water column.

The primary spawning season for the ruffe occurs from the middle of April through approximately June.

One week after the hatching, the young ruffe start to swim and feed actively, but they do not form schools at this age.

From here, the ruffe gradually mature until they are 2 – 3 years old, when they reach full maturity.

At full length, the adult ruffe is usually around 20 cm, but at a maximum of 29 cm.

Growth is usually occurs more when the ruffe is in clear, brackish waters.

Generally, female and male ruffe do not live longer than 7 to 11 years.

This trait both aids the ruffe in finding food and gives the rudge an edge in avoiding predators.

Boatel has a similar meaning to yachtel.

Westinghouse has a similar system, with two classifications representing various levels of competence on the strictly technical side: consulting engineer or scientist, as the case may be, and advisory engineer or scientist.

There is one exception to the above statement as has been pointed out, and that is that fluids can relax by flowing into fields of lower rates of shear, so the statement should be modified by stating that the mechanics are similar.

The Attorney General of the United States, in considering the power of the Secretary to issue similar regulations under the Wagner-Peyser Act relating to the interstate recruitment of farm workers, has rendered an opinion sustaining his authority.

Within each chapter an effort has been made to group together those crystals with similar structures.

The Vedic Rudra has some similar functions with Apollo.

Once a predator has sampled one of these, it is likely to remember the colouration next time it encounters a similar animal.

In Western countries, a bead frame similar to the Russian abacus but with straight wires and a vertical frame has been common ( see image ).

While the Ural – Altaic hypothesis can still be found in encyclopedias, atlases, and similar general references, it has not had any adherents in the linguistics community for decades.

Anatolia's diverse topography and climate has fostered a similar diversity of plant and animal communities.

Actinium has similar chemical properties as lanthanum and other lanthanides, and therefore these elements are difficult to separate when extracting from uranium ores.

Malzahar, a character from League of Legends, has a similar back story and Arabian theme that seems to be a direct reference to Alhazred, not to mention the obvious correlation between the two names.

The trump picture of Corwin is executed in a subtly different style-and has features very similar to Roger Zelazny's.

# An adiabat looks similar to an isotherm, except that during an expansion, an adiabat loses more pressure than an isotherm, so it has a steeper inclination ( more vertical ).

Japan celebrates a similarly themed Greenery Day, held on May 4. Although it has a similar theme to Arbor Day, its roots lay in celebration of the birthday of Emperor Hirohito.

The American Psychiatric Association has recommended sustained treatment in conjunction with AA's program, or similar community resources, for chronic alcoholics unresponsive to brief treatment.

) Hilton also claims a Roman Catholic monarch would therefore be unable to be crowned by the Archbishop of Canterbury and points to the examples of European states that have similar religious provisions for their monarchs: Denmark, Norway, and Sweden, whose constitutions compel their monarchs to be Lutherans, the Netherlands, the constitution of which insists its monarchs be members of the Protestant House of Orange, and Belgium, which has a constitution that provides for the succession to be through Roman Catholic houses.

Although systems similar to AARP existed in other systems, Banyan VINES for instance, nothing like NBP has existed until recently.

Tibetan astrology also shares many of these components but has also been strongly influenced by Chinese culture and acknowledges a circle of animal signs similar to that of the Chinese zodiac ( see below ).

He says that the object described by the Lemba has attributes similar to the Ark.

For example, armoured personnel carriers were generally replaced by infantry fighting vehicles in a very similar role, but the latter has some capabilities lacking in the former.

The desire to create air portable armoured vehicles that can still take on conventional MBTs has usually resulted ATGM armed light vehicles or in protected / armoured / mobile gun system style vehicles in which a lack of armour protection being in part offset by the provision of a first look / first hit / first kill capability through the mating of a powerful gun to superior targeting electronics, a concept similar in operation to that of the US tank destroyers of WWII.

While the use of paracetamol, aspirin, ibuprofen, naproxen and other NSAIDS concurrently with weak to mid-range opiates ( up to about the hydrocodone level ) has been said to show beneficial synergistic effects by combatting pain at multiple sites of action, several combination analgesic products have been shown to have few efficacy benefits when compared to similar doses of their individual components.

The ablative case in Sanskrit is the fifth case ( panchami ) in the grammar, and has similar function to that of Latin.

Ajaccio has a small manufacturing economy of cigars, macaroni, and similar products, and carries on shipbuilding, sardine-fishing and coral-fishing.