First confirmed complete incubation of a flapper skate (Dipturus intermedius) egg in captivity
Abstract
An egg of the Critically Endangered flapper skate Dipturus intermedius was successfully incubated to hatching in captivity, in what is believed to be a first for the species. Water conditions (temperature, salinity, flow rate) were recorded, with mean water temperatures ranging from a monthly mean of 8.3±1.2 to 13.2±0.3oC and salinity from a monthly mean of 30.5±1.2 to 36.6±2.3 ppt. Hatching occurred after 534 days, suggesting that flapper skate eggs take approximately 5700 growing degree-days to incubate to hatching. The egg's prolonged embryonic development raises concerns about flapper skate eggs' vulnerability to anthropogenic disturbance.
Citation
Benjamins , S , Cole , G , Naylor , A , Thorburn , J A & Dodd , J 2021 , ' First confirmed complete incubation of a flapper skate ( Dipturus intermedius ) egg in captivity ' , Journal of Fish Biology , vol. Early View , 14816 . https://doi.org/10.1111/jfb.14816
Publication
Journal of Fish Biology
Status
Peer reviewed
ISSN
0022-1112Type
Journal article
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