Freshwater ecosystem

FRESHWATER

HABITATS

Freshwater habitats is defined as having a low salt

concentration It is usually less than 1%.

Limnology It is the study of freshwater Habitats

Types of Freshwater Habitats• Lentic habitat - Calm freshwater habitat

or standing water refers to standing or relatively still water, from the Latin lentus, which means sluggish.II.

• Lotic Habitat -Washed or the running water refers to flowing water, from the Latin lotus, to wash

LENTIC HABITAT

LOTIC HABITAT

Freshwater habitats are:• Lakes• Ponds• Rivers

• Streams• Springs• Wetlands

-Marsh-Swamp-bogs

Fig. 1. Thermal Stratification

Fig. 2. Annual lake cycle

Four kinds of lake

1. Oligotrophic lake2. Eutrophic lake3. Mesotrophic lake4.Hypereutropic lake

Fig. 1. Oligotrophic lake

Fig. 2. Eutrophic lake

Fig. 3. Mesotrophic lake

Fig. 4. Hypereutrophic lake

REFERENCES

• http://www.ucmp.berkeley.edu/exhibits/biomes/freshwater.php

• Http://www.lifeinfreshwater.org.uk• http://environment.nationalgeographic.c

om/environment/habitats/freshwater-threats/

Submitted by:Ezperanza, Johndhel

S. Palencia, Sheena

Arenn A.