Glossary:Adductor: Typically, one of a pair of muscles that close the valves of a bivalved shell.
Aperture: An opening or gap.
Brooding: To care for eggs either inside or outside the female body, during at least the early stages of development.
Bursa: A pouch-like structure. Bursa commonly refers to a female reproductive chamber for the reception and temporary storage of sperm received at copulation.
Byssal threads;Byssus: A tough protein secretion produced by a gland in the bivalve foot and commonly in the form of threads used for attachment.
Cryptofaunal: Cryptofaunal is used here as the underside of rocks.
Deposit feeding: Feeding upon detritus that has settled to the bottom of marine and freshwater environments.
Detritus: Fragments of plant or animal remains.
Diductor: Typically, ligaments that open the valves of a bivalved shell.
Epifaunal: Epifaunal is used here as on the top side of rocks.
Hemocoel: A voluminous, blood-filled cavity, occupying most or all of the body.
Infaunal: In the sediment. In Argyle, the sediment consists of varying amounts of shell hash, small pebbles, sand, mud, clay.
Operculum: A lid or covering to a chamber-like structure.
Pelagic: Living, floating, or swimming in the water column.
Phylum, Phyla (pl.):
Plankton: Organisms suspended in the water column.
Sabellid: Phylum Annelida, Family Sabellidae. A family of annelid (segmented) worms that can be distinguished in the field by having maroon or red-colored tentacles and living in a tube that is never calcareous.
Semisessile: Organisms attached to a surface for the majority of their adult life, but have a behavior which enables organism to move and reattach elsewhere: sea anemones crawl: mussels dissolve their byssal threads, crawl and reattach byssal threads elsewhere.
Serpulid: Phylum Annelida, Family Serpulidae. A family of annelid (segmented) worms that can be distinguished in the field by living in calcareous tub with a retractable tentacular structure. Under the microscope, one radiole of the tentacular crown is modified as an operculum.
Sessile: Organisms attached to a substrate for their entire adult life.
Substrate: A solid surface. The substrate at Argyle includes: smooth smallrocks, large rough rocks, sand, anoxic mud, other mud, dead clam and barnacle shells, and live oyster and barnacle shells.
Suspension feeding: Feeding on particles (plankton and detritus) suspended in the water.
Thalweg: Line which follows the deepest part of a stream.
Trochophore: Type of larva found in molluscs, annelids, and other groups in which the larval body is ringed by a girdle of cilia, the prototroch.
Veliger: Molluscan planktotrophic larva that supersedes the trochophore, and in which the shell, foot, velum and other structures make their appearance.
Penulitimate larval stage of many decapod crustaceans. Precedes the