Environmental Engineering Reference
In-Depth Information
Table 6.3
Composition of rotifer species at station II
Family (14)
b
Table 6.4
Composition of rotifer species at station IV
Family (7)
a
Genera (19)
Genera (10)
Species (33)
Species (12)
Asplanchnidae
Asplanchna
A. brightwelli
a
Brachionidae
Anuraeopsis
A. fi ssa
Atrochidae
Cupelopagis
C. vorax
a
Brachionus
B. angularis
B. quadridentatus
Brachionidae
Anuraeopsis
A. coelata
A. fi ssa
Keratella
K. tropica
Brachionus
B. angularis
B. bidentatus
B. calycifl orus
B. caudatus
B. forfi cula
B. quadridentatus
Plationus
P. patulus
Colurellidae
Colurella
C. obtuse
Dicranophoridae
Dicranophorus
D. australiensis
Filiniidae
Filinia
F. longiseta
Lecanidae
Lecane
L. bulla
L. inermis
Keratella
K. procurva
K. tropica
Synchaetidae
Polyarthra
Sp.1
Trichocercidae
Trichocerca
T. braziliensis
Plationus
P. patulus
a
Total number in parenthesis
Colurellidae
Colurella
C. obtuse
Lepadella
L. patella
Table 6.5
Composition of rotifer species at station V
Family (5)
a
Dicranophoridae
Dicranophorous
D. australiensis
Euchlanidae
Euchlanis
E. meneta
Genera (6)
Species (10)
Filiniidae
Filinia
F. longiseta
F. opoliensis
Brachionidae
Brachionus
B. angularis
B. quadridentatus
Flosculariidae
Lacinularia
Sp.1
Keratella
K. tropica
Hexarthridae
Hexarthra
H. mira
Colurellidae
Lepadella
L. acuminate
L. patella
Lecanidae
Lecane
L. arcula
L. bulla
L. inermis
L. leontina
L. luna
L. papuana
L. quadridentata
Dicranophoridae
Dicranophorus
D. australiensis
Filiniidae
Filinia
F. longiseta
Lecanidae
Lecane
L. bulla
L. inermis
L. pyriformis
a
Total number in parenthesis
Mytilinidae
Mytilina
M. ventralis
Notommatidae
Cephalodella
C. misgurnus
Scaridium
S. longicaudum
levels of species sharing and family sharing occur
between regions that are geographically close
together and the smallest levels between regions
that are far apart. In other words, whether one
uses the numbers of shared species or the Jaccard
index, the conclusions on the rotifer faunal simi-
larities are broadly similar (Table
6.7
).
Synchaetidae
Polyarthra
Sp.1
Philodinidae
Rotaria
R. neptunia
a
a
Indicates exclusive species
b
Total number in parenthesis
24 species with the adjoining station II and only
eight species with the remote station V. Similarly
station II shares 20 species with the next station
III but only eight with remote station V.
Unlike the raw fi gures of shared species
quoted above, the similarity indices take account
of the total number of species in the regions
concerned. The Jaccard index that is used here
incorporates total from both of the regions
compared. Nonetheless, the index presents a
broadly similar picture of faunal resemblance to
the shared species and points that the greatest
Species Diversity
Stations I, II, and III showed reasonably good
rotifer species diversity, whereas stations IV and
V had lower diversity of rotifers. On the whole,
however, the post-monsoon season had the high-
est diversity of rotifers as indicated by the
Shannon-Weiner and Margalef indices (Table
6.8
)
Search WWH ::
Custom Search