Ladoga
Baltic Fund for Nature

Assessment of the state of ecosystem components

Integrated assessment of the ecological state of biotopes and communities of the Ladoga region is based on the approaches developed under HELCOM aegis (Red List..., 1998). Explanations of abbreviations standing for different human impacts, and the estimation scale for the state of biotopes and communities are given in the Tables 8.2.1 and 8.2.2. (the state of ecosystem components was ranked according to the extent of spatial shrinking they have undergone, or to the loss of initial ecological properties). The evaluation of the modern ecological state of individual elements of the ecosystem in various zones of Lake Ladoga is shown in Table 8.2.3.

Table 8.2.1. Human impacts on the ecosystems and their designations
(Red List..., 1998; with abbreviations)

Human impact

Designation

Agriculture

A

Dredging, dumping

B

Coastal defense

D

Eutrophication

E

Fishing and hunting

F

Building activities for recreation purposes

H

Traffic and tourism

G

Mineral extraction

M

Pollution (non-eutrophication)

P

Forestry

T

Reclamation

W

Military activities

Y

Table 8.2.2. Scale for assessment of the ecological state of the nature complex components (Red List..., 1998; with amendments)

Ecological state of the system

Rating

Completely destroyed

1

Heavily threatened

2

Heavily endangered

3

Potentially endangered

4

Not endangered at present

5

Table 8.2.3 Major human impacts and ecological status of habitats and biological communities in the Lake Ladoga region

Object

Major Human Impacts

Ecological Status

Remarks

Lake Ladoga Proper

Waters

, , G

3-5

 

Bottom sediments

,

3-5

 

Plankton

,

4-5

 

Benthos

,

4-5

 

Fish

A, B, E, F, G, P, T

2-3

 

Birds

E, F,G, P

3-5

 

Seals

 

 

 

Water-Land Border Zone

Biotopes

A, B, G, M, P, H, Y, W

3-4

 

Aquatic vegetation

A, B, D, E, F, G, P

3-5

 

Birds and Mammals

A, E, F, G, P, W

2-4

 

Terrestrial ecosystems

Biotopes

 

 

 

Vegetation

A, F, H, G, T, W, Y

3-5

Northern shore - 4-5
Eastern shore - 4
Southern shore - 3-4
Western shore - 4-5

Amphibians and Reptiles

P, T, W, G

4-5

 

Birds

A, F, H, T, W

3-5

 

Mammals

A,F,T,W

2-5

 

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About project
  • Background
  • Purpose and Objectives
  • Project Personnel

  • Legislative basis
  • Legislation
  • Lake Ladoga drainage area as a management object

  • Environment
  • Geomorphology and landscapes
  • Climate
  • Waters, sediments and biota
  • Water - Land Border Zone
  • Terrestrial Ecosystems

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