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General
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| Name: |
Shannon Pechauer ( shannpeach ) Site: Marine Breeding Initiative (MBI) |
| Status: |
Approved |
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Species: |
Mithraculus sculptus
( Class:
A
, Points Awarded:
5
) 
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| Journal Thread: |
http://www.mbisite.org/Forums/tm.aspx?m=87886
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| Spawn Date: |
03/17/2014 |
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Time of Spawn: |
Unknown
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Tank Parameters
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Temperature: |
~80 ° F
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PH: |
Not measured
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Salinity: |
~1.024
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Size:
( Gallons) |
Breeder basket in 20 gallon tank (plumbed into a larger system)
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Dimensions: |
6" X
5.25" X
5"
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Lighting:
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Fluorescent strip light
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Lighting Shedule:
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6AM to 9PM
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Filtration:
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Live rock, live sand, protein skimmer, bioballs
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Brood Stock Data
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Size of Female: |
~1 inch carapace width
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Size of Male: |
~1 inch carapace width
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Age of Female: |
Unknown, wild caught
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Age of Male: |
Unknown, wild caught
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Time Together:
(how long have you had the pair before this event)
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~3 months. They were likely spawning before, but I wasn't paying close attention/have them in a place I could collect the eggs.
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Feeding
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Food: |
Pellets, live blackworms, frozen mash, mysis
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Feeding Schedule:
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At least 2 times a day
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Spawn Details
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Pre-Spawn Behavior: |
None noted. The crabs rarely interact that I have seen beyond fighting a bit about food (mostly just for show/claw waving)
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Spawning Behavior:
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Not witnessed
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Post Spawn Behavior:
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None. Each crab goes about its business.
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Egg Details
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Size: |
~1mm, slightly smaller
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Color: |
Unknown what color initially, they turn dark as they get closer to hatch
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Quantity: |
~100 (very rough estimate since the eggs are in a pouch)
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Description:
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I don't know what the eggs look like near the spawn since I haven't seen a female open her pouch around that time, but once they get closer to hatch the female leaves the pouch open more and the eggs are dark/silvery
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Location:
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Eggs are kept in a pouch under the female's abdomen
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Other Details:
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The spawn date used here is an estimate. Spawns are hidden in the egg pouch area and are rarely seen unless you catch the crab aerating the eggs or the spawn is huge. I estimated the spawn date to be ~2 weeks prior to the hatch date.
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