Property:Definition
From Coastal Wiki
This is a property of type Text. It links to pages that use the form MstConcept.
C
Special feeding cell of sponges +
Swimming is effected by beating of cilia and or flagella; includes the fused cilia of Ctenophores. +
The subzone of the rocky sublittoral below that dominated by algae (the infralittoral), and dominated by animals. No lower limit is defined, but species composition changes below about 40m to 80m depth, depending on depth of the seasonal thermocline. This subzone can be subdivided into the upper circalittoral where foliose algae are present and the lower circalittoral where they are not (see Hiscock, 1985). The term is also used by Glémarec (1973) to refer to two étages of the sediment benthos below the infralittoral: a "coastal circalittoral category with a eurythermal environment of weak seasonal amplitude (less than 10°C) varying slowly" and a "circalittoral category of the open sea with a stenothermal environment" (Hiscock, 1996). +
Typically occurs below 50-70 metres away from the influence of wave action. Aphotic with animal communities in stable or stenothermal and stenohaline conditions. Open sea (Connor et al., 1997). +
1) Sediment particles less than 0.004 mm in size (Wentworth, 1922). 2) A soft very fine-grained sedimentary rock composed primarily of clay-sized particles (Hiscock, 1996). +
Number of eggs laid at one time - in organisms that may lay eggs in one or more batches. +
1) Particle size 0.5 - 4 mm (Hiscock, 1996) +
Sediments composed of gravel and sand; inc. gravel, gravelly sand and sandy gravel (Long, 2006) +
Organisms that come together in large colonies (100 plus individuals) - often in the same area from season to season - usually for breeding purposes +
Symbiosis (q.v.) in which one species derives benefit from a common food supply, whilst the other species is not adversely affected (Lincoln ''et al.'', 1998). +
A species which is found in relatively moderate to high densities (accounts for non-discrete nature of abundance terms/parameters described here). +
Early larval stage in siphonophores, composed of a floating colony with disc-shaped float, and consists of a hollow sphere with aboral thickening (Stachowitsch, 1992). +
Common in OSPAR Regions II, III, IV +
Cone with a half sphere (Olenina ''et al.'', 2006). +
Where the species preys on native fauna or grazes on native flora. +
