NORTHERN ZONE

This article appears in Volume V14, Page 270 of the Encyclopedia Britannica.

Encyclopedia Britannica - Main :: NEW-NUM

NORTHERN ZONE .The boundaries of the northern zone coincide in the main with the northern limit of the equatorial zone; but they overlap the latter at different points. This happens in Syria, as well as

east

EAST
EAST, ALFRED (1849- )

of it, where the mixed faunae of the Jordan and the rivers of

Mesopotamia

MESOPOTAMIA (Mevoaora)

demand the inclusion of this territory in the northern zone as well as in the equatorial; in the

island

ISLAND (O.E. ieg =isle, +land')

of Formosa, where a Salmonid and several Japanese Cyprinids flourish; and in Central America, where a Lepidosteus, a Cyprinid (Sclerognathus meridionalis), and an Amiurus (A. meridionalis) represent the North American fauna in the midst of a host of tropical forms.
There is no

separate

SEPARATE

arctic zone for freshwater fishes; ichthyic life becomes

extinct

EXTINCT

towards the pole wherever the fresh water remains frozen throughout the year, or thaws for a few weeks only; and the few fishes which extend into high latitudes belong to types in no wise differing from those of the more temperate

south

SOUTH
SOUTH, ROBERT (1634–1716)

. The highest

latitude

LATITUDE (Lat. latitudo, latus, broad)

at which fishes have been obtained is 82 N. lat., whence specimens of

char

CHAR (Salvelinus)

(Salmo

arcturus

ARCTURUS

and Salmo naresii) have been brought back.
The Palaearctic or Europaeo-Asiatic Region.The western and southern boundaries of this region coincide with those of the northern zone. Bering Strait and the Kamchatka Sea have been conventionally taken as the boundary in the north, but the fishes of both coasts, so far as they are known, are not sufficiently distinct to be referred to two different regions. The Japanese islands exhibit a decided Palaearctic fish fauna with a slight influx of tropical forms in the

south

SOUTH
SOUTH, ROBERT (1634–1716)

. In the

east

EAST
EAST, ALFRED (1849- )

, as well as in the west, the distinction between the Europaeo-Asiatic and the North American regions disappears almost entirely as we advance farther towards the north. Finally, the Europaeo-Asiatic fauna mingles with

African

AFRICAN

and Indian forms in Syria, Persia and Afghanistan.
The boundaries of the North American or Nearctic region have been sufficiently indicated. The main features and the distribution of this fauna are identical with those of the preceding region.

End of Article: NORTHERN ZONE

If you wish, you can link directly to this article.

<a href="http://jcsm.org/StudyCenter/Encyclopedia/NEW_NUM/NORTHERN_ZONE.html">
NORTHERN ZONE
</a>

(Previous)
NORTHERN DIVISION

(Next)
NORTHFIELD

JCSM was founded in 1997 and exists to help the community and bring people into a life-changing and productive relationship with Jesus Christ. JCSM offers over 200,000 free web pages, including its weekly inspirational emails that were sent continuously for over a decade.

Jesus Christ Saves Ministries
P.O. Box 9297
San Diego, CA 92169
1-888-887-0417 or Email

Sponsored Advertisements

Online First Aid and CPR Certification . DHA Solutions . PB Happy Hour Specials . Improvising Made Easy For Guitar and Bass . The Skeptic's Annotated Bible: Corrected and Explained . Home Equity Loans . First Aid and CPR Online . San Diego Music Lessons . 10,000 Wise Quotes and Spiritual Sayings . Blow Up Your Site (For Free!) . San Diego DUI Lawyers . Jason Gastrich . Jordan Faith Gastrich . Divorce Secrets Revealed . Post Your Ad Link Free . San Diego Soccer Training . JCSM . Download Sermons . Custom Religious Banners, Build A Sign . Christian Singles Dating . Christian T-Shirts . Healing Christian Prayer . Bumper Authority . Personalized Blogs and Email . San Diego Haircuts . The Do the Math Diet . Stop Twitter Spam . Christian Conservative Work at Home Network . The Website of the Lord