BIOTIC Species Information for Pecten maximus
|Click here to view the MarLIN Key Information Review for Pecten maximus|
|Researched by||Charlotte Marshall & Emily Wilson||Data supplied by||MarLIN|
|Refereed by||Andy Beaumont|
||Feeding method||Active suspension feeder
|Typical food types||Seston including phytoplankton, especially single celled algae, particulate organic matter (POM), bacteria and other micro-organisms (Fegley et al., 1992; Reitan et al., 2002).||Habit||Free living|
|Bioturbator||Flexibility||None (< 10 degrees)|
|Height||Insufficient information||Growth Rate||See additional text|
|Adult dispersal potential||100-1000m||Dependency||Independent|
|General Biology Additional Information||
Pecten maximus normally lies recessed into slight hollows (recesses) in the seabed (Mason, 1983). Recessing is achieved through a series of powerful adductions (valve closures) where water is ejected from the mantle cavity and lifts the shell at an angle to the seabed so that subsequent water jets blow a hollow into the sediment (Brand, 1991).
Size and growth
Embedded among the bases of the sensory tentacles around the edge of the mantle are numerous tiny eyes (Mason, 1983). The eyes are a blue green colour no more than ca 1.5 mm in diameter. The eyes bear a superficial resemblance to the camera eyes of vertebrates and have a highly specialized retina (Wilkens, 1991). Light has both inhibitory and excitatory effects and scallops will swim, orient themselves or close their shell in response to shadows or movement (Wilkens, 1991).
|Biology References||Fish & Fish, 1996, Ansell et al., 1991, Mason, 1983, Minchin, 2003, Laing, 2002, Campbell et al., 2001, Thomas & Gruffydd, 1971, Mason, 1957, Bradshaw et al., 2001, Brand, 1991, Ansell et al., 1991, Fegley et al., 1992, Reitan et al., 2002, Shumway, 1991, Beaumont et al, 1985,|