Meiofauna

1
Meiofauna
2
Meiofauna Interstitial Fauna
3
Meiofauna Interstitial Fauna
4
Environmental Characteristics - Grain Size
Decreasing water flow
No meiofauna
Maximum diversity
Dominated by non-burrowers
Dominated by burrowers
0.5 mm
0.375 mm
0.25 mm
0.125 mm
0.5 µm
Grain Size
5
Environmental Characteristics - Temperature
A i r
AIR
Substrate
2 cm
10 cm
70 cm
Midnight Noon Midnight
6
Environmental Characteristics - Salinity
Runoff from land
Salinity
Fresh Salt
Effects of fresh water confined to upper layers
7
Meiofauna Distributions -result of all the
physical factors
of Fauna
10 cm
Ostracods
Nematodes
Copepods
8
Meiofaunal organisms
1. Protoza - Ciliophora
9
Meiofaunal organisms
2. Turbellaria
10
Meiofaunal organisms
3. Nematodes
11
Meiofaunal organisms
4. Platyhelminthes
12
Meiofaunal organisms
5. Minor Phyla - Gastrotrichia
Turbanella
13
Meiofaunal organisms
5. Minor Phyla - Tardigradia
14
Meiofaunal organisms
5. Minor Phyla - Kinorhyncha
15
Meiofaunal organisms
5. Minor Phyla - Rotifera
16
Meiofaunal organisms
6. Annelida - Polychaeta
Eusyllis
17
Meiofaunal organisms
7. Crustacea - Ostracoda
18
Meiofaunal organisms
7. Crustacea - Copepoda
19
Meiofauna - Seasonal Succession Denmark
Turbellaria
Abundance
Nematodes
J F M A M
J J A S
O N D