persian gulf is known as one of the main areas of oil exploration and production, and in the meanwhile, this causes some problems for the contained water ecosystem by pollution. in this concern, one of the ways to face this problem is the use of oysters as biological treatment. sacostrea cucullata is one of endemic oyster species to persian gulf that is known as one of the important filterers. ...

A Minchinia sp. (Haplosporidia: Haplosporidiidae) parasite was identified infecting rock oysters and morphologically described by Hine and Thorne (2002) using light microscopy and transmission electron microscopy (TEM). The parasite was associated with up to 80% mortality in the host species and it is suspected that the parasite would be a major impediment to the development of a tropical rock ...

En este trabajo se describe una bioconstrucción de Saccostrea cuccullata Born que aflora en materiales del Plioceno Superior de) SO España (Puerto Real, Cádiz). Las ostras, preservadas in situ, crecieron un ambiente salobre laguna costera o bahía interdistributaria relacionada con delta. La es elongada según dirección E-O debido a la existencia paleocorriente predominante dirigida hacia el E. E...

We tested the hypothesis that ultrasound in controlling cyanobacteria and algal blooms is “environmental friendly” by exposing the non-target zooplankton grazer Daphnia magna to ultrasound produced by commercially available ultrasound transducers. In populations of 15 Daphnia (~2 mm body size) exposed in 800 mL of water to ultrasound supplied at 20 kHz, 28 kHz, 36 kHz or 44 kHz, all animals wer...

BACKGROUND Oysters have important ecological functions in their natural environment, acting as global carbon sinks and improving water quality by removing excess nutrients from the water column. During their life-time oysters are exposed to a variety of pathogens that can cause severe mortality in a range of oyster species. Environmental stressors encountered in their habitat can increase the s...

This study tested the effects of low salinity on phenoloxidase activity in Sydney rock oysters (Saccostrea glomerata). Phenoloxidase is a key component of the immune system in S. glomerata. Previously, we have shown that decreased phenoloxidase activity is associated with susceptibility to fatal QX disease. In the current study, laboratory-based experiments were used to identify factors that co...