According to the temperature-size rule (TSR), ectotherms developing under cold conditions experience slower growth as juveniles but reach a larger size at maturity. Whether temperature alone causes this phenomenon is unknown, but oxygen limitation can play a role in the temperature-size relationship. Oxygen may become limited under warm conditions when the resulting higher metabolism creates a ...

The cleavage pattern of the black tiger shrimp Penaeus monodon was analyzed from the first division until gastrulation. Observations were based on microscopy combined with the use of fluorescent dyes, histological techniques, and computer based three-dimensional reconstructions. Early cleavage is holoblastic and follows a stereotypic pattern, which largely corresponds to what is known from othe...

In this study, the complete mitochondrial (mt) genome sequence of the South China deep-sea giant isopod Bathynomus sp. was determined, and this study is the first to explore in detail the mt genome of a deep-sea member of the order Isopoda. This species belongs to the genus Bathynomus, the members of which are saprophagous residents of the deep-sea benthic environment; based on their large size...

El conocimiento de la biodiversidad acuática ecosistemas lénticos es escaso en muchas regiones del mundo. Por ello, se consideró importante realizar evaluaciones preliminares fauna bentónica poca profundidad tres franjas subacuáticas muestreo entre los 0 a 10 m una zona rocosa área noreste lago Coatepeque, Salvador. Las familias más abundantes fueron Thiaridae (Gastropoda), Hyalellidae (Malacos...