b.organisms in or near water
DESCRIPTION
B.Organisms in or near Water. Aquatic flora. Lithrum salicaria. Lysimachia punctata. Lemna minor. Mentha aquatica. Reptiles-Terrapins. Mauremys caspica. Mauremys caspica. Trachemys scripta elegans. - PowerPoint PPT PresentationTRANSCRIPT
B.Organisms in or near Water
Aquatic flora
Lithrum salicaria Lysimachia punctata
Mentha aquatica
Lemna minor
Reptiles-TerrapinsMauremys caspica
Mauremys caspica
We have spotted the native Mauremys caspica terrapin (family Geoemydidae) and the alien species of the red-eared terrapin (Trachemys scripta elegans family Emydidae).
Trachemys scripta elegans
Reptiles-SnakesThe grass snake (Natrix natrix), sometimes called the ringed snake or water snake is a European non-venomous snake. It is often found near water and feeds almost exclusively on amphibians.
Birds - Waterfowl
The GreyHeron (Ardea cinerea), is a wading bird ofthe heron family
Ardeidae,native throughouttemperate Europe
and Asia We have seen lots of ducks and the (Anatidae family)
Anser anser Anas platyrynchos
Arthropods
Potamo potamios
Daphia sp.
Kingdom Monera (Bacteria)
We found bacteria from our water samples growing on our petri dish growth medium (agar).
Protists - Green algae
Diatoms
Insect larvae – Genus : Chironomids
Chironomidae family are mosquito-like insects that inhabit nearly every stream or creek. They are the most widely dispersed aquatic insect genera. In many lakes and slower streams huge populations of these insects make them the most prolific food source for fish. Chironomidae are important as indicator organisms, i.e., the presence, absence, or quantities of various species in a body of water can indicate whether pollutants are present. Large numbers of pollution-tolerant chironomids are often indicative of poor water quality (characterized by low dissolved oxygen and high nutrient concentrations). These species have a substance similar to haemoglobin in their blood which allows them to survive in places where the oxygen has become depleted.