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    Academic Journals

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• Coccidian Parasite in Sea Cucumber (Apostichopus japonicus) Ovaries

  Authors:Tatsuya Unuma, Noriko Tsuda, Yuichi Sakai, Takashi Kamaishi, Sayumi Sawaguchi, Naoki Itoh, et al.From:The Biological Bulletin (Vol. 238, Issue 1) Peer-Reviewed

  Feb. 20205,631 words Report 1280LWe investigated an unknown ellipsoidal body that is sometimes found in the ovaries of the sea cucumber Apostichopus japonicus. Its external morphology, comprising an ellipsoidal dark central body (about 150 [micro]m in...

• Tropical Octopus Abdopus aculeatus Can Learn to Recognize Real and Virtual Symbolic Objects

  Authors:Sumire Kawashima, Kaishu Takei, Saki Yoshikawa, Haruhiko Yasumuro, and Yuzuru IkedaFrom:The Biological Bulletin (Vol. 238, Issue 1) Peer-Reviewed

  Feb. 202010,067 words Report 1300LWe used three consecutive operant conditioning tasks to determine whether the tropical octopus Abdopus aculeatus is able to learn to recognize a symbolic object, in either real or virtual forms. In Experiment 1, we...

• Electrophysiological and Motor Responses to Chemosensory Stimuli in Isolated Cephalopod Arms

  Authors:Kaitlyn E. Fouke and Heather J. RhodesFrom:The Biological Bulletin (Vol. 238, Issue 1) Peer-Reviewed

  Feb. 20207,596 words Report 1260LWhile there is behavioral and anatomical evidence that coleoid cephalopods use their arms to "taste" substances in the environment, the neurophysiology of chemosensation has been largely unexamined. The range and...

• Particle Selection in Suspension-Feeding Bivalves: Does One Model Fit All?

  Authors:Julie Jones, Bassem Allam, and Emmanuelle Pales EspinosaFrom:The Biological Bulletin (Vol. 238, Issue 1) Peer-Reviewed

  Feb. 20207,697 words Report 1330LSuspension-feeding bivalves are known to discriminate among a complex mixture of particles present in their environments. The exact mechanism that allows bivalves to ingest some particles and reject others as...

• Ontogeny of Cheliped Laterality and Mechanisms of Reversal of Handedness in the Durophagous Gazami Crab, Portunus trituberculatus

  Authors:Nobufumi Masunari, Kazuki Sekine, Bong Jung Kang, Yoshitake Takada, Masatsugu Hatakeyama, and Masayuki SaigusaFrom:The Biological Bulletin (Vol. 238, Issue 1) Peer-Reviewed

  Feb. 202012,004 words Report 1190LThe paired claws in Gazami crabs, Portunus trituberculatus, are bilaterally asymmetrical, and asymmetry is remarkable on the distal two segments of the first pereiopod, that is, the dactylus and propodus. Shells are...

• Changes in Food Selection through Ontogeny in Crassostrea gigas Larvae

  Authors:Maria Rosa and Dianna K. PadillaFrom:The Biological Bulletin (Vol. 238, Issue 1) Peer-Reviewed

  Feb. 20205,568 words Report 1240LBivalves are some of the most important suspension feeders in aquatic systems. Much research has been conducted on the feeding mechanisms of adult molluscan suspension feeders, but less is known about the feeding...