A laboratory apparatus has been developed and used to infer the sound speed and density contrasts of live zooplankton. The sound speed contrast is determined from acoustic measurements of travel time (time-of-flight) and from the resistivity measurements of volume fraction. The density can then be inferred by applying the phasecompensated distorted wave born approximation (DWBA) model based on ...

Recovery of new decapod specimens from middle and late Eocene rocks of Pakistan prompted reevaluation of the known decapod fauna of the region. Specimens come from the Sulaiman Range in Balochistan, North-West Frontier, and Punjab provinces, and range temporally from the middle Lutetian through the Bartonian and possibly early Priabonian global marine ages. Proxicarpilius planifrons, Portunus s...

Sub-tidal populations of decapod crustaceans from 5 distinct benthc habitats were sampled at the end of the main settlement season. Divers, using SCUBA equipment, estimated substrate characteristics and complexity, removed sediment samples, and collected quantitative samples of the resident communities using suction sampling at each of the sites. Adult and young-of-the-year (YOY) components of ...

The increasing market demand for decapods has led to a considerable interest in cultivating decapod species at larger scale. Following the development of hatchery technologies, most research focused on formulated feeds commercially farmed once they enter juvenile stages. use feed commercial scale is still early This probably because unique feeding behavior that possess: being robust, slow feede...

Decapod crustaceans are ecologically and economically important invertebrates but vulnerable to anthropogenic pressures climate change. Understanding their spatial ecology is essential for management conservation, with telemetry emerging as a useful tool quantify space-use movements. Here, we synthesized the use of study decapods among articles published from 1971 2019 (n = 102 studies), by tax...

Abstract Decapod crustaceans are a diverse group that exploits various types of habitats in Costa Rica, where they represent 8.1% the marine diversity country. This includes families containing species with strictly symbiotic behavior, e.g., Palaemonidae and Pinnotheridae. Despite high decapods importance symbionts ecosystems, very little research has been done regarding symbiosis Rica Central ...

The insulin-like androgenic gland hormone (IAG) found in decapod crustaceans is known to regulate sexual development in males. IAG is produced in the male-specific endocrine tissue, the androgenic gland (AG); however, IAG expression has been also observed in other tissues of decapod crustacean species including Callinectes sapidus and Scylla paramamosain. This study aimed to isolate the full-le...