|
As part of an on-going project to formally document the presence of
Pomacea paludosa (Say,
1829) [Florida Applesnail]
in northeast Florida, a visit was made to a small drainage ditch
(Bennett Branch) in a residential area of southeastern Duval County on
10/20/2005.
The ditch in question flows north to south under Bowden Road via a
concrete box culvert just east of the intersection of Bowden Road and
Southpoint Parkway. In addition to the normal water flow of the ditch,
it also drains two medium sized retention ponds located immediately to
the north of Bowden Road. Ultimately, the ditch flows into the Pottsburg
Creek Watershed.
Upon arrival in the area,
I found a minimal number of Pomacea paludosa eggs
on the box culvert just north of Bowden Road. The ditch
was then investigated upstream, along with the two retention ponds, but
no further evidence of Pomacea was seen.
Across the road, the southern end of the
box culvert was also found
found to have additional
Pomacea eggs and some egg clutches were also seen on nearby vegetation.
Ultimately a single live Pomacea was seen crawling in the
shallow water.
While there is
obviously a breeding population in the ditch, the minimal number of egg
clutches seen combined with the visually apparent very poor water
quality, suggests that the resident Pomacea population is quite
small. The Duval County Enviromental Quality Division earlier this year
sampled the water just downstream (Salisbury Road) from where the live
Pomacea was found. Their tests showed a reading of 3,000 fecal
coliform bacteria colonies per 100 milliliters of water. A reading of
over 800 is considered a definite health risk. |
|
Aquatic Species
- Pisidium casertanum (Poli, 1791) Ubiquitous Peaclam
- Sphaerium occidentale (J. Lewis, 1856) Herrington
Peaclam
- Campeloma floridense (Call, 1886) Purple-throat
Campeloma
- Fossaria cubensis (Pfeiffer, 1839) Carib Fossaria
- Pomacea paludosa (Say,
1829) Florida Applesnail
- Physella heterostropha
(Say, 1817) Pewter Physa
- Gyraulus parvus (Say, 1817) Ash Gyro
- Menetus dilatatus avus (Pilsbry, 1905) Keeled
Bugle Sprite
- Menetus floridensis (F. C. Baker, 1945) Penny
Sprite
- Planorbella trivolvis (Say, 1817) Marsh Rams-horn
First
Northeast Florida Record
- Hebetancylus excentricus (Morelet, 1851) Excentric
Ancylid
- Melanoides tuberculata (Müller, 1774) Red-rim
Melania Exotic Species
- Utterbackia
imbecillis (Say, 1829) Paper Pondshell
Exotic Species
(11/23/2016)
- Corbicula
fluminea (Müller, 1774) Asian Clam
Exotic Species (11/23/2016)
Terrestrial Species
- Gastrocopta pellucida
(Pfeiffer, 1841) Slim
Snaggletooth
- Gastrocopta rupicola (Say, 1821) Tapered
Snaggletooth
- Gastrocopta servilis (Gould, 1843) Wandering Snag
- Gastrocopta tappaniana (C.B. Adams, 1841) White
Snaggletooth
- Pupisoma dioscoricola (C.B. Adams, 1845) Yam
Babybody
- Pupisoma mcneilli (Clapp, 1918) Gulf Babybody
- Pupoides modicus (Gould, 1848) Island Dagger
- Vertigo milium (Gould, 1840) Blade Vertigo
- Vertigo oralis Sterki, 1898 Palmetto Vertigo
- Vertigo ovata Say, 1822 Ovate Vertigo
-
Succinea campestris Say, 1818 Crinkled Ambersnail ?
- Succinea unicolor Tryon, 1866 Squatty Ambersnail
- Oxyloma effusum (Pfeiffer, 1853) Coastal Plain
Ambersnail
- Philomycus carolinianus (Bosc, 1802) Carolina
Mantleslug
- Lucilla
cf. singleyana (Pilsbry, 1889) cf.
Smooth Coil
- Hawaiia minuscula (A. Binney, 1841) Minute Gem
- Ventridens cerinoideus (Anthony, 1865) Wax Dome
- Ventridens demissus (A. Binney, 1843) Perforate
Dome
- Zonitoides arboreus
(Say, 1817) Quick Gloss
- Dryachloa dauca Thompson and Lee, 1981 Carrot
Glass
-
Euconulus trochulus (Reinhart, 1883)
Silk Hive [lost in
processing]
- Polygyra cereolus (Mühlfeld, 1816) Southern
Flatcoil
- Polygyra septemvolva Say, 1818 Florida Flatcoil
- Allopeas gracile (Hutton, 1834) Graceful Awlsnail
Exotic Species
- Opeas pyrgula Schmacker
and Boettger, 1891 Sharp
Awlsnail Exotic Species
- Huttonella bicolor (Hutton, 1834) Two-tone Gullela
Exotic Species
- Bradybaena similaris (Férussac, 1821) Asian
Trampsnail Exotic Species
|
