... ), along with two foundation prey species (mussels, Mytilus californianus ; barnacles, Balanus glandula ), inhabiting rocky, wave-swept shores. Each prey species is known to secrete either a 29.6 kDa (named ‘KEYSTONEin’) or a 199.6 kDa (named ‘MULTIFUNCin’) glycoprotein as a contact-chemical cue. Here...

...Kiyotaka Matsumura; Pei-Yuan Qian Gregarious settlement, an essential behavior for many barnacle species that can only reproduce by mating with a nearby barnacle, has long been thought to rely on larval ability to recognize chemical signals from conspecifics during settlement. However, the cyprid...

... barnacles has received much attention over the years; however, the permanent adhesive of the cyprid – the colonisation stage of barnacles – is a material about which very little is presently known. We applied confocal laser-scanning microscopy to the measurement of contact angles between the permanent...

...Yu Zhang; Li-Sheng He; Gen Zhang; Ying Xu; On-On Lee; Kiyotaka Matsumura; Pei-Yuan Qian SUMMARY The barnacle Balanus amphitrite is among the most dominant fouling species on intertidal rocky shores in tropical and subtropical areas and is thus a target organism in antifouling research. After being...

...Ben H. Maskrey; Graham W. Taylor; Andrew F. Rowley SUMMARY Post-copulatory behaviour in barnacles involves a violent rocking movement of the opercular valves, which is thought to contribute to the expulsion of oocytes through the oviduct into the mantle cavity where they are fertilised. We...

... and various PGA 2 and PGE 2 esters. A significant number of reports of PG identification in invertebrates have relied upon methods such as enzyme immunoassay that do not have the necessary specificity to ensure the validity of the identification. For example, in the barnacle Balanus amphitrite , although...

...Keiju Okano; Katsuhiko Shimizu; Cyril Glenn Satuito; Nobuhiro Fusetani ABSTRACT Cementation to substrata during permanent attachment concludes the planktonic larval phase in many sessile marine invertebrates, including barnacles. However, the neural control and the mechanism of cement secretion...

.... Radioimmunoassay did not clearly show whether cyclic AMP levels changed following exposure of cyprids to a pulse of crude barnacle extract. However, exposure to forskolin significantly increased the cyclic AMP titre of cyprids. We conclude that compounds that alter intracellular cyclic AMP levels alter normal...

...G. F. Gwilliam; A. E. Stuart ABSTRACT Barnacles respond to decreases in light intensity (shadows). Previous evidence indicates that the first stages of the visual pathway within the supraoesophageal ganglion comprise a limited number of neurones: a single pair of second-order neurones (I-cells...

...H. Iwamoto; A. Muraoka; A. Goto; H. Sugi ABSTRACT Fibres from adductor scutorum muscle of a barnacle Tetraclita squamosa were made to contract isometrically by electrical stimulation, and the change in the ability to shorten actively during the mechanical responses was examined by suddenly allowing...

... & Zotterman, 1941 ; Diamond, 1955 ), mechanoreceptors in the skin ( Brown & Gray, 1948 ) and pain receptors ( Skouby, 1951 ). The experiments to be described here demonstrate that ACh depolarizes the median photoreceptor of the giant barnacle, and test the possibility that the photoreceptor receives...