Horsehair crab: Difference between revisions

The embryonic development of the species can be divided into nine stages, each defined by cleavage and formation of distinct appendages. To incubate the eggs after spawning, females attach them to their [[Decapod anatomy|pleopods]].<ref>{{Cite journal|title=Sex pheromones of the hair crab ''Erimacrus isenbeckii''. Part 1: Isolation and structures of novel ceramides|journal = Tetrahedron|volume = 56|issue = 51|pages = 9895–9899|last=Asai|first=Naoki|date=11 October 2000|doi = 10.1016/S0040-4020(00)00959-5}}</ref> Based on many surveys conducted during the spawning and hatching seasons, the incubation period of the species is estimated to be over a year, with the embryonic growth rate mainly being controlled by the temperature of the water.<ref name="Nagao 1999">{{Cite journal|title=Embryonic development of the hair crab ''Erimacrus Isenbeckii''|journal = Journal of Crustacean Biology|volume = 19|issue = 1|pages = 77–83|last=Nagao|first=Jiro|date=February 1999|jstor = 1549549|doi = 10.2307/1549549 |doi-access=free}}</ref> Young hatch between March and May and remain as [[zooplankton]] until they reach the bottom of the sea by July.<ref name="Azuma 39–48"/> The hatching process occurs during the spring [[phytoplankton]] bloom in the Sea of Okhotsk.<ref>{{Cite web|url=http://www.marinespecies.org/aphia.php?p=taxdetails&id=440405#attributes|title=WoRMS - World Register of Marine Species - Erimacrus isenbeckii (J. F. Brandt, 1848)|website=www.marinespecies.org|access-date=2019-04-13}}</ref><ref>{{Cite journal|title=Early larval stages of the hair crab ''Erimacrus isenbeckii'' (Brandt) (Brachyura: Atelecyclidae), with special reference to its hatching process|journal = Journal of Crustacean Biology|volume = 13|issue = 3|pages = 511–522|last=Sasaki|first=Jun|year=1993|jstor = 1548791|doi = 10.2307/1548791|doi-access = free}}</ref> The [[Crustacean larva|zoea]] of this species can be mistaken for the two other species in the same family, but ''E. isenbeckii'' zoea lack carapace spines and have shorter lateral spines on the fork of the telson.<ref name=":3">{{Cite journal|title=Early zoeal stages of edible crab ''Erimacrus isenbeckii'' (Brandt, 1848) (Crustacea: Decapoda: Brachyura: Cheiragonidae) and a comparison with other cheiragonid zoeae|journal = Animal Cells and Systems|volume = 14|issue = 4|pages = 323–331|last=Lee|first=Chu|date=10 December 2010|doi=10.1080/19768354.2010.528207}}</ref>