Cheсklist of gastropod molluscs in mangroves of Khanh Hoa province, Vietnam
Author
Zvonareva, Sofya
Author
Kantor, Yuri
text
Zootaxa
2016
4162
3
401
437
journal article
38211
10.11646/zootaxa.4162.3.1
bc54479e-1a51-4fea-861e-757a5a391348
1175-5326
254973
DDBC36A0-5305-45FD-9C79-170C53B72DA9
Pirenella cingulata
(
Gmelin, 1791
)
Figs 5
G–J
Murex cingulatus
Gmelin, 1791
: 3561
.
Cerithideopsilla cingulata
:
Poppe 2008a
: 286
–287, pl. 88 figs 1, 3.
Cerithidea
(
Cerithideopsilla
)
cingulata
:
Okutani 2000
: 132
–133, pl. 66, fig. 4;
Reid
et al
. 2008
: 688
, fig. 2F.
Cerithidea cingulata
:
Thach 2005
: 48
;
Zvonareva
et al
. 2015
: 8
, fig. 3(9).
Pirenella incisa
:
Reid & Ozawa 2016
: 41
–48, figs 1, 2L–N, 4A, 14, 15A (full synonymy).
Material
examined.
Nha Phu Bay
,
Dam Bay
, mangrove plantation and natural mangroves, about over
500 specimens
.
Abundance.
Common.
Measurements.
Up to
35 mm
(
Vohra 1970
).
Ecological notes.
Development with planktonic phase of 10 to 12 days (
Ozawa
et al
. 2015
).
One of the most common and abundant species on estuarine shores, open mud and sand flats, and muddy inland creeks, which are often adjacent to mangroves. Reported to occur at low density in area of sparse mangroves and small plants, while it is not found in the shade of dense canopy. Sediment dweller without an obligate mangrove association. Appears to be an opportunistic and fast-growing species. It tends to avoid clean and well drained sand but occurs in big aggregations on wet areas, especially along runnels, drainage canals, ditches and channels on the beach (
Vohra 1970
;
Reid & Ozawa 2016
). Considered a pest in brackish water milkfish ponds where the lack of competitors and predators results in ecological release and population explosion. Very tolerant to hypoxia and adverse conditions, 1.5 to 50 ‰ salinity tolerance (
Vohra 1970
).
Obligate deposit feeder, food source reported to be macroalgae, bacteria and diatoms (
Kamimura & Tsuchiya 2004
).
In studied sites it was found on mud and sand banks of mangrove streams in upper and mid-intertidal zones in mangrove plantation and in natural mangroves, sometimes in extremely high densities.
Relation to mangroves.
Eurybiotic.
Distribution in
Vietnam
.
From northern-east coast to southern delta (
Thach 2005
;
Reid & Ozawa 2016
).
General distribution.
India
to SE Asia, W
Indonesia
(
Reid & Ozawa 2016
).