In This study it has been uses a network for monitoring the pollution with organochlorine pesticides in There marine stations at Lattakia coast: Fishing port, AfamiaCoast, High Institute Of Marine Research Coastusing Cages contained species of musse
lswitch are filter feeders Brachidontes varibilis. Samples had been collected from Lattakia coast.
The results showed a great efficiency of the made network for monitoring the organic pollution in marine environment. It has been recorded a concentration of DDTs is accumulated lower than 2ng/g , Endosulfane and HCB is lower than 1 ng/g too. The results showed that the HCH compounds is dominant in all stations.organochlorine pesticides is accumulated mostly in the biota of station Fishing port, Afamia Coast
Concentrations of eight chlorinated pesticides: namely, gamma HCH, Heptachlor,
heptachlore epoxide, aldrin, dieldrin, 4,4-DDE, 4,4-DDD, and 4,4-DDT were studied in
some mollusks species Monodonta turbinata, Brachidontes variabilis , Patella caerule
a,
Trochus erithraeus, Strombus persicus and in sediments taken from five different
locations: Assin estuary, Jobar estuary, Banias Thermal Electricity Station, Albasia, and
Mirkiya River estuary. Sampling was performed at six different times during the period
2006-2007.
Results indicated that Assin estuary contained the highest level of contamination
followed by Jobar estuary and Mirkiya estuary where sampled mollusks species contained
various concentrations of all of the studied pesticides. At Banias Thermal Electricity
Station samples showed contamination with heptachlore and heptachlore epoxide only,
whereas the concentration of pesticides at Albasia location, much lower than the other
locations.
Six water stations were chosen along the lower reach section of AlKebir ALShimaly
river and some of it's tributaries, differing in their biotic and abiotic features. Water and
animal samples were collected bimonthly during spring, summer & autumn a
nd monthly
during winter during the period 25/8/2013 – 26/8/2014.
Seventeen species of freshwater molluscs were identified in all stations, fifteen
belonging to Gastropoda (6 of Prosobranchia & 9 of Pulmonata) and 2 belonging to
Bivalvia, one of it (Corbicula fluminea) was recorded for the first time in Syrian Arab
Republic.
We focused on in this study on the station ( Mafraq Quesmeen) that we studied it's
chemical and physical properties of the water and we identified 11 mollusc species and the
most frequency of it was Melanopsis praemorsa and it's frequency rate was 46.48% and it
was the most constant in all continuous samples and it was 100%
قمنا في هذه الدراسة، و من خلال عينات من الرخويات، جمعت من القطاعات المختلفة لمحافظة ريف
دمشق، بالتعرف على مجمعات أنواع الرخويات الأرضية المنتشرة فيها و قد سجلنا وجود ثمانية أنواع
تنتمي إلى فصائل أربع:
اثنان ينتميان إلى فصيلة Enidae و نوع ينتمي إلى
فصيلة Leucochroeidés و أربعة أنواع تنتمي إلى فصيلة
Helicidae و نوع ينتمي إلى فصيلة Helicellidae.