- Common name
- Apocyclops copepod
- Scientific name
- Apocyclops panamensis
- Category
- Live food and microfauna
- Group
- Copepod cultures
- Environment
- Dedicated brackish-to-marine culture vessel
- Origin
- Species described from Panama; the provenance and culture history of each commercial strain should be recorded
- Care level
- Intermediate
- Adult size
- Unknown — life stages are microscopic and dependable adult length was not found in the selected sources
- Expected lifespan
- Individual lifespan unknown; a culture can be maintained continuously while water quality, food and backups remain stable
- Minimum housing
- 5–20 L food-safe dedicated culture vessel with gentle aeration; maintain at least one physically separate backup culture
- Temperature
- 24–30 °C practical culture range; published experiments also tested 32 °C, but strain response varies
- pH
- Unknown — maintain a stable, aerated pH appropriate to the prepared brackish or marine medium and avoid rapid change
- Hardness / minerals
- Not usefully expressed as freshwater GH. Use prepared artificial seawater or verified brackish medium with stable alkalinity and salinity
- Salinity
- 20–28 ppt is a practical starting range; published studies found different best results at 20 ppt and 28 ppt under different conditions, so verify the actual strain
- Lighting
- Low to moderate 12-hour light cycle where live microalgae are maintained; avoid overheating
- Placement / zone
- Stable dedicated culture shelf away from sprays, medications, household chemicals and display-tank equipment
- Filtration
- Do not use an unguarded conventional filter. Gentle aeration, controlled harvest and measured water replacement are the primary controls; any sponge or screen must retain nauplii and avoid stripping the microalgal food supply.
- Aeration
- Provide gentle continuous aeration that keeps oxygen and salinity uniform without violent shear, excessive evaporation or foam loss. Increase exchange as feed and density rise.
- Maintenance
- Check temperature, salinity, odour, food colour and life stages daily; feed measured clean microalgae, harvest a minority, replace matched medium, clean vessels on a rotation and maintain a physically separate backup with separate tools.
Identity and search names
Species-level culture profile for Apocyclops panamensis. Record strain source and salinity; confirm culture purity because commercial “Apocyclops” may contain other copepods or mixed zooplankton.
Search names: Panama copepod, Apocyclops viduus, Cyclopoid copepod culture
Environment and housing
5–20 L food-safe dedicated culture vessel with gentle aeration; maintain at least one physically separate backup culture
Social structure: Mixed-stage breeding culture containing egg-bearing females, nauplii, copepodites and adults. Do not harvest away the reproductive core.
Feeding and nutrition
Feeding ecology: Live microalgae such as Isochrysis, Tetraselmis and mixed Isochrysis/Nannochloropsis diets; feed to culture demand without persistent fouling
Feeding routine: Feed clean live microalgae in small measured additions, restoring food before complete depletion but avoiding persistent dark colour, odour or bacterial clouding.
Breeding, reproduction or spread
Retain egg-bearing females and all stages, harvest a minority through calibrated screens, and stagger separate cultures so one crash does not end production.
Detailed care and app-ready planning
- Identity scope
- Species-level culture profile for Apocyclops panamensis. Record strain source and salinity; confirm culture purity because commercial “Apocyclops” may contain other copepods or mixed zooplankton.
- Adult size and space
- Microscopic life stages require a 5–20 L food-safe vessel sized by oxygen, feed and harvest target rather than body length. Maintain at least one physically separate backup culture.
- Social structure
- Mixed-stage breeding culture containing egg-bearing females, nauplii, copepodites and adults. Do not harvest away the reproductive core.
- Swimming zone or placement
- Entire culture water column and vessel surfaces. Keep all zones gently mixed and free of unguarded drains, strong suction and stagnant corners.
- Feeding ecology
- Suspension and particle feeding on suitable microalgae and microbial particles; nutritional quality changes with algal diet, salinity and life stage.
- Feeding plan
- Feed clean live microalgae in small measured additions, restoring food before complete depletion but avoiding persistent dark colour, odour or bacterial clouding.
- Water stability
- Hold temperature and salinity steady, provide gentle aeration and prevent ammonia accumulation. Sudden salinity transfer can change survival and nutritional composition.
- Habitat structure
- Clean lidded culture vessel, artificial seawater or verified brackish medium, gentle airline, harvest screens and no shared wet equipment.
- Compatibility plan
- Culture alone. Rotifers, ciliates, hydra, worms, other copepods, predators and display-tank water are contaminants unless deliberately studied in a separate system.
- Breeding or reproduction plan
- Retain egg-bearing females and all stages, harvest a minority through calibrated screens, and stagger separate cultures so one crash does not end production.
- Quarantine
- Treat every purchased starter as a separate culture until identity and contamination are checked. Do not add vendor water directly to established cultures.
- Welfare checks
- Check swimming activity, egg-bearing females, nauplii recruitment, medium odour, bacterial clouding, surface film and sudden stage loss.
- Biosecurity and release
- Keep every culture organism, egg, nauplius, culture water and wet tool contained. Sterilise or securely kill unwanted cultures and verify current Australian import and state requirements before acquisition, movement or sale.
- Main risk
- Single-vessel dependence, overfeeding and unnoticed contamination.
- Adult projected load
- Project load from total copepod density, microalgal feed, faeces, dead stages and bacterial growth. A dense microscopic culture can exhaust oxygen or accumulate ammonia before the water looks crowded.
- Filtration
- Do not use an unguarded conventional filter. Gentle aeration, controlled harvest and measured water replacement are the primary controls; any sponge or screen must retain nauplii and avoid stripping the microalgal food supply.
- Aeration
- Provide gentle continuous aeration that keeps oxygen and salinity uniform without violent shear, excessive evaporation or foam loss. Increase exchange as feed and density rise.
- Maintenance
- Check temperature, salinity, odour, food colour and life stages daily; feed measured clean microalgae, harvest a minority, replace matched medium, clean vessels on a rotation and maintain a physically separate backup with separate tools.
- Overridable warnings
- Non-overridable: do not rely on one vessel, mix unidentified cultures, share wet tools, or release culture water. A knowledgeable user may alter salinity, feed species or vessel size only through documented strain response with stable oxygen and reproduction.
- Identity
- Accepted species Apocyclops panamensis; Apocyclops viduus is listed as a synonym. Confirm culture purity microscopically because trade “Apocyclops” may contain other copepods or mixed zooplankton.
- Culture Vessel
- Use a clean 5–20 L food-safe vessel with gentle aeration, a loose contamination cover and no strong mechanical filtration. Label strain, salinity, date and feed.
- Culture Feed
- Feed clean live microalgae. Published work supports Tetraselmis chuii and shows strong performance with Isochrysis galbana alone or mixed with Nannochloropsis. Add only enough to maintain food without persistent bacterial clouding.
- Harvest
- Harvest a minority through calibrated plankton sieves and return clean medium as needed. Select mesh by the life stage required and never remove most reproductive adults from the only culture.
- Backup
- Maintain at least one separate vessel with separate pipettes, airline and harvest sieves. Stagger starts so both cultures are not the same age.
- Water Medium
- Prepare artificial seawater or verified brackish water consistently. Start around 20–28 ppt, then retain the salinity at which the documented strain reproduces reliably.
- Contamination
- Inspect under magnification for ciliates, rotifers, hydra, worms, other copepods, fungal growth and bacterial blooms. Never share wet tools with aquaria or other cultures.
- Use
- Feed appropriately sized nauplii and copepodites to marine and brackish larvae or small planktivores. Rinse through clean matching-salinity water before feeding when culture water is nutrient-rich.
- Reproduction
- Egg-carrying females produce nauplii that pass through copepodite stages to adults. Development rate varies strongly with temperature, salinity, density and diet.
- Culture Density
- No universal home-culture density is safe. Research trials began at thousands of nauplii per litre; monitor oxygen, food colour and stage structure instead of chasing maximum density.
- Biosecurity and release
- Keep culture organisms and culture water contained. Sterilise or securely dispose of unwanted cultures and never pour live culture water into drains, ponds, dams or waterways.
Compatibility, welfare and risk
Compatibility: Culture alone. Rotifers, other copepods, ciliates, hydra, predators and display-tank water can contaminate or replace the culture.
Welfare: Maintain active swimming, egg-bearing females, regular nauplius recruitment, clean odour and stable stage structure. A bacterial cloud, surface film or sudden loss of one life stage requires immediate correction.
Main warning: Do not rely on one vessel or one salinity recipe. Strain response varies, and overfeeding or cross-contamination can erase the culture quickly.
Biosecurity and release
Keep every culture organism, egg, nauplius, culture water and wet tool contained. Sterilise or securely kill unwanted cultures and verify current Australian import and state requirements before acquisition, movement or sale.