acorn barnacle


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Related to acorn barnacle: Balanus balanoides

acorn barnacle

n.
Any of various barnacles having a conical shell that is directly attached to rocks or other hard surfaces.

[From the resemblance of the barnacle in its shell to an acorn in its cupule .]

acorn barnacle

or

acorn shell

n
(Animals) any of various barnacles, such as Balanus balanoides, that live attached to rocks and have a volcano-shaped shell from the top of which protrude feathery food-catching appendages (cirri)
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.acorn barnacle - barnacle that attaches to rocks especially in intertidal zonesacorn barnacle - barnacle that attaches to rocks especially in intertidal zones
barnacle, cirriped, cirripede - marine crustaceans with feathery food-catching appendages; free-swimming as larvae; as adults form a hard shell and live attached to submerged surfaces
Balanus, genus Balanus - type genus of the family Balanidae
Translations
balane
References in periodicals archive ?
As shown in Table 4, some of the classes such as hydrozoan, acorn barnacle, algae, finger sponge, and Christmas tree worm produced a result of less than 70%, which as mentioned above was set as the benchmark for what is acceptable.
Amphibalanusamphitrite (previously named Balanusamphitrite,(Clare and Hoeg, 2008) is a major marine biofouling invertebrate distributed in tropical and warm temperate worldwide waters (Clare and Alred 2009), it is belong to balanidae family, and the common names is striped barnacle or purple acorn barnacle, morphological characteristics are a medium-sized, parietal tubes in single row, without transverse septa, exterior of shell with longitudinal striations, shell conical, white and distinctly marked with thick, composed of 6 parietes.
The acorn barnacle (5) glues itself to a rock with its own strong glue.
The parasitic forms can be as small as a fraction of an inch in length, while the shell of the acorn barnacle Balanus psittacus reaches a height of about 8--10 inches.
Chthamalus anisopoma is a mid-intertidal acorn barnacle distributed throughout the Gulf of California (Brusca 1980).
Specifically we examine the hypothesis that bays with low flushing rates, and presumably long residence times and restricted dispersal of larvae, promote local adaptation of acorn barnacle populations to the thermal stresses of estuarine habitats relative to bays with short residence times.
Effects of crowding and wave exposure on cirrus morphology of the acorn barnacle. Semibalanus balanoides.
KEY WORDS: acorn barnacle, aquaculture, southern Chile, cash flow, economic indicators
Observations made during May-September 1994 suggested that the acorn barnacle, Semibalanus batanoides, extended above the Ascophyllum nodosum zone at northern sites, but at southern sites it was present only under the algal canopy.
Among the pickings: acorn barnacle, ribbed limpet, purple shore crab, black turban snail, leather chiton, green anemone, red sea cucumber, feather boa, even the nudibranch.