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Maerl Beds
Maerl (also rhodolith) is a collective name for non-geniculate Coralline algae, coralline red algae with a certain growth habit. Maerl grows at a rate of c. 1 mm per year. It accumulates as unattached particles and forms extensive beds in suitable sublittoral sites.Vize, S.; Blake, C.; Hinojosa, G. and Maggs, C.A. 2003. The distribution and composition of maerl beds in Northern Ireland. ''PMNHS Newsletter'' No.13 p.26 The term maerl originally refers to the branched growth form of Lemoine (1910) and ''rhodolith'' is a sedimentological or genetic term for both the nodular and branched growth forms (Basso et al., 2015). Description In Europe maerl beds occur throughout the Mediterranean, along most of the Atlantic coast from Portugal to Norway, and in the English Channel, Irish Sea and North Sea. The distribution of maerl is dependent on water movement, light and salinity concentration.Wilson, S., Blake, C., Berges, J.A., and Maggs, C.A. (2004) "Environmental tolerances of fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARRAN SEASCENES 013
Arran may refer to: Places * Isle of Arran, Scotland * Aran Islands, County Galway, Ireland * Arranmore, County Donegal, Ireland, also known in English as Aran Island * Arran (Caucasus), or Caucasian Albania, a historical region * Arran, Saskatchewan, Canada * Arran, Syria, a village in Aleppo Governorate, Syria * Arran–Elderslie, Ontario, Canada People Given name * Prince Arran, semi-legendary founder of Caucasian Albania *Arran Brindle (born 1981), English female cricketer *Arran Brown (born 1985), South African cyclist *Arran Fernandez (born 1995), British mathematician *Arran Gare (born 1948), Australian philosopher *Arran Hoffmann (1902–1990), German sports shooter *Arran Lee-Barrett (born 1984), English footballer *Arran Pene (born 1967), New Zealand rugby player *Arran Steele (born 1975), English cricketer *Arran Stephens (born 1944), Canadian entrepreneur, author and philanthropist Surname *Len Arran (born 1961), English composer of film scores Other names *Earl of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coral Fragments, Coral Beach, Carraroe
Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group" is a colony of very many genetically identical polyps. Each polyp is a sac-like animal typically only a few millimeters in diameter and a few centimeters in height. A set of tentacles surround a central mouth opening. Each polyp excretes an exoskeleton near the base. Over many generations, the colony thus creates a skeleton characteristic of the species which can measure up to several meters in size. Individual colonies grow by asexual reproduction of polyps. Corals also breed sexually by spawning: polyps of the same species release gametes simultaneously overnight, often around a full moon. Fertilized eggs form planulae, a mobile early form of the coral polyp which, when matu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
