Property:Definition
From Coastal Wiki
This is a property of type Text. It links to pages that use the form MstConcept.
B
Organisms that live in 'I' or 'J' shaped burrows open at only one end where water is drawn through or diffuses out of the sediment e.g. ''Arenicola marina'' (adapted from Kristensen ''et al.'', 2012). +
Build up or accumulation of sediment. +
Maerl; twig-like unattached (free-living) calcareous red algae, often a mixture of species and including species which form a spiky cover on loose small stones - 'hedgehog stones'. +
A measurement of the size of the organism. Note - the measurement used to express body size varies within taxonomic groups. For example, some disciplines measure diameter, others carapace length, total body length or wing span. Also body size can vary with gender and life stage. +
Maximum recorded linear body length (in millimetres) excluding appendages. +
Species that have been intercepted at borders as a result of detection procedures. +
The second the two free-swimming larval forms in the asteroids, characterized by the appearance of three adhesive arms at the anterior end (Ruppert & Barnes, 1994; Stachowitsch, 1992). +
0.5-<30 psu +
Both gametes are expelled (spawned) from the confines of the adult body or tissues, into the external fluid medium (water/air) +
Eggs retained by adult, usually in specialised cavity/appendage where the eggs develop to larval or juvenile stage +
Feeding on parts of plants (e.g. shoots, leaves, twigs) or parts of other organisms (e.g. siphon nipping by fish). (Lincoln ''et al.'', 1998). +
The buccal cavity lacks obvious differentiation of the wall and it is not eversible. Some species if buccal cavity present at all, is only a transient larval structure and becomes completely occluded. +
A form of asexual multiplication in which a new individual begins life as an outgrowth from the body of the parent. It may then separate to lead an independent existence or remain connected or otherwise associated to form a colonial organism (Barnes ''et al.'', 1993). +
Balloon or sac-like (Prescott, 1969). +
An organism that constructs permanent or semi-permanent burrows through physical excavation or chemical action. +
Occupies or shares space in burrow constructed by other organisms. +
An organism that moves through the substratum by burrowing or tunneling (e.g. earthworms, polychaetes). +
Use of a length of byssus thread (e.g. micro-molluscs, juvenile molluscs) or mucus (e.g ''Nemertesia'' planulae) to be carried by water flow +
