BIOTIC Species Information for Lithophyllum incrustans
Researched byDr Keith Hiscock Data supplied byMarLIN
Refereed byDr Yvonne Chamberlain
Reproduction/Life History
Reproductive typeGonochoristic
Developmental mechanismSpores (sexual / asexual)
Reproductive SeasonOctober to April Reproductive LocationInsufficient information
Reproductive frequencyBiannual episodic Regeneration potential No
Life span21-50 years Age at reproductive maturity2-3 years
Generation timeInsufficient information FecunditySee additional information
Egg/propagule sizeInsufficient information Fertilization typeInsufficient information
Larval/Juvenile dispersal potential>10km Larval settlement periodInsufficient information
Duration of larval stageInsufficient information   
Reproduction Preferences Additional InformationGametangial and tetrasporangial plants occur commonly on some shores in Devon and Cornwall but are rare in the north. The 'Time of first and last gamete' refers to the time when reproductive types occur however, some conceptacles are present throughout the year. (Irvine & Chamberlain 1994.) Assuming one layer of conceptacles is produced each year, plants up to 30 years old are reported (Edyvean pers. comm.. in Irvine & Chamberlain 1994). Reproductive types occur from October to April but tail-off into summer. It has been calculated that 1 mm x 1mm of reproductive thallus produces 17.5 million bispores per year with average settlement of only 55 sporelings/year (Edyvean & Ford 1984)
Reproduction References Irvine & Chamberlain, 1994, Edyvean & Ford, 1984, Edyvean & Ford, 1987,
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