Breeding Journal DataSheet
This first post should be updated regularly to include new information as events take place or changes are made to your system
General Species: Octopus chierchiae
Social Structure: Non monogamous pairs that only come together for mating
Size of Individuals: Males 18mm, females 25mm
Age of Individuals: unknown
Date added to Tank: 3/20/08
Broodstock Tank Details Size of Tank: Each animal was kept in a 12x12 inch cube plumbed into a larger system
Substrate Details: None, single barnacles added to cubes for octopus to use as dens
Filtration Details: Filter socks, protein skimmers, RDSB, GFO and GAC
Water Changes: 20% monthly
Water Temperature: 78
Lighting: None, ambient, sunlight
Lighting Cycle: None, except for the sun
Other Tank Inhabitants: none
Broodstock Feeding Details Food Types: Saltwater grass shirmp (Crangnon sp.), FW ghost shrimp, locally caught shore crabs (Species ?)
Feeding Schedule: One prey item daily or every other day
Spawning Details Date of First Spawn: Mating 4/20/08, and 5/5/08 to a different male, eggs discovered 5/20/08
Spawn Time of Day: 9pm (that is when the male and female were put in a breeding tank)
Dates of Consecutive Spawns: Eggs discovered 3 more times, approx 3 weeks after previous hatch.
Courtship Details: See video. Male approached female, roughly embraced her dorsally and inserted the hectocotolyzed arm into her mantle. Mating lasted for approx 4 minutes
Egg Size: 4-6mm
Egg Color: Clear/Creamy
Egg Count: approx 25
Hatch Details Hatch Date: 6/17/08
Hatch Time of Day: evening
# Days after Spawn: 28 days
Larvae Description: Bright orange, formed like adults except for color. Chromatophores begin to really develop within 10 days and orange color fades in the first 3 weeks.
Larval Tank Details Temperature: 78
Size of Larval Tank: Each hatchling was kept in its own jar or box that allowed water to flow through it. All containers kept in a water table.
Substrate Details: None
Other Tank Decor: Opaque or calcarious tube
Filtration Details: Filter socks, protein skimmers, RDSB, GFO and GAC
Lighting: ambient
Lighting Cycle: ambient
Water Changes: 20% monthly
Larval Feeding Details Food Types: Gammarus amphipods, live mysid
Feeding Schedule: 2 prey items per animal per day, both at same time.
Metamorphosis/Settlement Date of Settlement Start: 6/17/08
Days after Hatch: 0
Date of Settlement End: 6/30/08 (unclear as sto what settlement actually is in these animals. I am using the appearance of adult coloring as a "settlement" reference
Description of Fry: miniature version of adults, but orange in color
Grow-Out Tank Details Temperature: 78
Size of Grow-Out Tank: Small Jar or plastic container
Substrate Details: None/sand
Other Tank Decor: Opaque or calcarious tube
Filtration Details: Filter socks, protein skimmers, RDSB, GFO and GAC
Lighting: Ambient
Lighting Cycle: Ambient
Water Changes: 20% monthly
Size at Transfer: No transfer, kept in same container from after hatching
Age at Transfer: No transfer
Grow-Out Feeding Details Food Types: Mysids, wild collected crabs
Feeding Schedule: at least every other day
Additional Information Currently (June 12) breeding more of these and preparing to launch into the world of F2 Salinity in all tanks is kept at 33.5ppt or 1.024sg
Miscellaneous Information: http://www.tonmo.com/foru...p;highlight=chierchiae http://www.advancedaquarist.com/2010/9/inverts http://www.stickycricket....ttle/oc/oc_babies.html Rodaniche AF (1984) Iteroparity in the Lesser Pacific Striped Octopus,
Octopus chierchiae. (Jatta, 1889). Bull Mar Sci 35:99–104
You will be required to provide photographic evidence in this thread of each event submitted for the MBI Program.
If your thread does not contain these photos the MBI Committee will not be able to approve your reports.
<message edited by Thales on Monday, July 16, 2012 1:14 AM>