In addition to ubiquitous forms, the Adrar of Mauretania has a number of rare tropicopolitan species, which occur here in relative abundance. In the Moroccan Atlas mountains, West-African forms meet boreo-alpine forms. A population of Hexarthra from Atar, Mauretania, was intermediate between thefen
Some peculiar features of the hydrochemical regime and the fauna of mesohaline waters
โ Scribed by V. V. Khlebovich
- Publisher
- Springer-Verlag
- Year
- 1968
- Tongue
- English
- Weight
- 276 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0025-3162
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โฆ Synopsis
The information available reveals pronounced changes in the ion ratio when marine and fresh waters are mi~ed. The critical salinity has been shown to be about 50/00 in the Kara, White, Baltic, Azov, Black and, probably, Caspian Seas, and British Columbia. Corresponding results were obtained in experimental railings of White Sea waters with a variety of fresh waters. A close connection is suggested between mi~ed water hydrochemistry and the existence of an eco-physiological barrier. This barrier divides, at salinities of 5 to 80/00, the two basic types of aquatic animals into marine and freshwater repre~entativee.
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