Map of the Black Sea

 

Biodiversity, Hydrology, Geography of the Black Sea           

Black Sea annual water balance
(average for 20th century,
data assembled by Sorokin, 2002)

Main data on the Black Sea
geography and hydrology

Black Sea biodiversity -
number of species

Freshwater supply by rivers

369 km3

Maximal depth

2212 m

Marine mammals

3

Atmospheric precipitation

224 km3

Longest distance from one to another shore

1200 km

Fish species

~180

Seawater inflow from Marmara Sea by Lower Bosporus Current

176 km3

Coastline length

4340 km

Benthic invertebrates

~1500

Black Sea water outflow via Bosporus

340 km3

Volume of the Black Sea

550 000 km3

Macroalgae

~300

Evaporation

395 km3

Surface of the Black Sea

423 000 km2

Phytoplankton species

~700

 

 

Surface of the drainage basin

2 300 000 km2

Zooplankton species

(holoplankton)

~150

 

 

Picnocline depth

50-150m

   

 

 

Surface layer salinity

17‰

   

 Black Sea home page

Salinity beneath the picnocline

20-30‰

Changes of the Black Sea Ecosystem
   

Temperature beneath the thermocline

9oC

   
   

Anoxic zone upper limit

140-200m

   
   

Living Black Sea 2001-2005

   

 

Rambler's Top100