Copepoda - Subgroup Harpacticoida: Canthocampus
Canthocampus, with nauplius to same scale(inset)
Zeiss GFL Microscope
Objective: Zeiss x10 plan
Ocular: Watsonx8 compensating
DG substage wheelstop
Sample from bowl of rainwater in garden
Camera: Canon Powershot S50
ISO 50, F4.9, 1/500 sec
Sample from wet moss in garden, November 2004
Copepoda - Subgroup Cyclopoida: Cyclops
Probably the most common Copepod. The following specimens mostly came from Warnham Nature Reserve
Large specimen from Warnham Pond
Zeiss GFL Microscope
Objective: Zeiss x10 plan achromat
Ocular: Watson x8 Compensating
DG Illumination with Zeiss DG Condenser
Flash
Camera: Canon Powershot S50, F4.9, ISO50
The above image clearly shows the single eye-spot that gives this creature its name. Cyclops is very common and is a very fast swimmer.
Polarised light can be used to show musculature (red)
Microscope: Zeiss Standard GFL
Ocular: Olympus P15
Objective: Zeiss 10/0.22 Plan achromat
Polarised light/retardation filter
Camera: Canon Powershot S50
ISO200, F5.0, Flash
Closer details of main muscles using Differential Interference Contrast (DIC)
Microscope: Zeiss Standard GFL
Ocular: Olympus P15
Objective: Leitz 40/0.7 NPL Fluotar ICT
Substage: Leitz ICT (DIC)
Camera: Canon Powershot S50
ISO100, F5, Flash
Unidentified Nauplius
Zeiss GFL Microscope
Objective: Zeiss x20 plan achromat
Ocular: Watson x8 compensating
Brightfield
ISO50, F8.0, 1/640 sec
Combination of three images using CombineZ4, manually retouched
Unidentified Nauplius
Zeiss Standard GFL Microscope
Objective: Leica EF L x20
Ocular: Watson x8 Compensating
COL
Camera: Canon Powershot S50
ISO 100, F 8.0, Flash
Sample from Warnha Millpond, 29 Aug 2005
Copepoda - Subgroup Calanoida: Diaptomus
Projectina Microscope
Objective: Watson x4 parachromat
Ocular: Wild x10 photo
DG illumination - substage condenser with top lens removed
Wheel stop
Specimen from Dipping Pond 1, 19-Feb-2004
Same specimen as above
Same specimen as above
Zeiss GFL Microscope
Objective: Zeiss plan 1.6 - 5 x
Ocular: Watson x8 compensating
Brightfield with flash
Sample from Warnham Millpond DP2, 05 Jun 2005
Partially anaesthetised with lidocaine