Dolphins are well known for their complex social and foraging behaviours. Direct underwater observations of wild dolphin feeding behaviour however are rare. At mass spawning aggregations of giant cuttlefish (Sepia apama) in the Upper Spencer Gulf in South Australia, a wild female Indo-Pacific bottlenose dolphin (Tursiops aduncus) was observed and recorded repeatedly catching, killing and prepar...

This study was aimed to investigate the potential use of pre-treated cuttlebone powder (CBP) as an alternative calcium source by evaluating physicochemical properties CBP with distilled water (CBP1), 1% acetic acid (CBP2), and 2% sodium hydroxide (NaOH) solutions (CBP3). Proximate analysis revealed ash major component all samples. The presence phenols, flavonoids, alkaloids, glycosides were det...

– The cuttlefish’s inner shell, better known under the name “cuttlebone”, is a complex structure that has been studied by scientists since nearly two centuries. indeed, this shell which is involved in tissue support and buoyancy regulation unites useful properties such as high mechanical resistance, porosity and permeability. Moreover, this ostensibly straight shell is unique in extant and know...

Ocean acidification and associated changes in seawater carbonate chemistry negatively influence calcification processes and depress metabolism in many calcifying marine invertebrates. We present data on the cephalopod mollusc Sepia officinalis, an invertebrate that is capable of not only maintaining calcification, but also growth rates and metabolism when exposed to elevated partial pressures o...

This study presents the copyrolysis of three biomasses (date pits, cow manure, and coffee waste) explores potential utilizing natural waste catalysts—seashell (SS) cuttlebone (CB)—to improve kinetics thermodynamics process. Mixing feeds led to positive synergistic effects, particularly at a heating rate 10 K/min or higher. By employing model-free kinetic methods, estimated activation energy (Ea...