...Akira Sakurai; Jerrel L. Wilkens SUMMARY In the crustacean neurogenic heart, the cardiac ganglion (CG) acts as a peripherally located central pattern generator (CPG) by producing rhythmic motor output that initiates the heartbeat. In the isopod Ligia , the CG consists of six electrically coupled...

...Monica Hagedorn; Andreas Ziegler SUMMARY In terrestrial isopods, large amounts of Ca 2+ are transported across anterior sternal epithelial cells during moult-related deposition and resorption of CaCO 3 deposits. Because of its toxicity and function as a second messenger, resting cytosolic Ca 2...

...Masazumi Iwasaki; Ayako Ohata; Yoshinori Okada; Hideo Sekiguchi; Akiyoshi Niida SUMMARY The relationship between segmental mobility and the organisation of thoracic stretch receptors was examined in the deep-sea isopod Bathynomus doederleini , which shows a developed adaptive behaviour during...

...N. Justin Marshall; Carol Diebel ABSTRACT Deep-sea isopods of the family Munnopsidae exhibit four modes of swimming: forward striding, slow backward pedalling, fast backward pedalling and escape, the first two of which use asymmetric phases of leg movement. Instead of moving the left and right...

...Jonathan C. Wright; Michael J. O’Donnell; Johanna Reichert ABSTRACT The effects of ammonia loading in the terrestrial isopod Porcellio scaber were studied by exposing animals to atmospheres of high . Isopods show a remarkable tolerance of elevated ambient , with an LD50 of 89 Pa for a 7-day...

... preadaptions favouring evolution of vapour absorption in the Oniscidea are discussed. 14 11 1991 © 1992 by Company of Biologists 1992 isopod pleoventral chamber (PV) pleon fluid osmolality ion concentration water vapour absorption Porcellio scaber A capacity for water vapour...

.... Sandeman ), pp. 399 – 468 . New York, London : Academic Press . Holley , A. and Delaleu , J. C. ( 1972 ). Electrophysiology of the heart of an isopod crustacean: Porcellio dilatatus . I. General properties . J. exp. Biol . 57 , 589 – 608 . 10.1242/jeb.57.3.589 Kuffler...

... to the respiratory function of the pleopods. A brief description of the external anatomy of Idotea will facilitate description of its swimming kinematics. In common with other valviferan isopods, those in the genus Idotea have uropods modified to form trap-door-like ‘operculae’. When closed...