The aim of this study was to investigate the effects fish cage culture on Macrobenthic in southern Caspian Sea. Samples were collected two offshore farms with four floating polyethylene cages a production 60 tons for 5 months 2015. Sampling performed macrobenthos, physicochemical, and sediment January, March, May, August at depths shade, 50, 100, 1000 m three geographical directions (east, west...

The study of gene diversity in interspecies contributes to our understanding the environmental adaptation, evolutionary history, origin, and stability biodiversity. Crabs are main component macrobenthos community; therefore, how crabs adapt different environments can be a guide understand maintain community diversity. Previous studies on adaptation have focused differences morphology, organ str...

Introduction The purpose of many ecological studies is to identify interactions between faunistic ecosystem components by means of laboratory and field experiments. It has often been shown that abiotic and biotic factors such as competition, disturbance and predation influence the composition and dynamics of macrobenthos communities (REISE, 1977; COMMITO and AMBROSE, 1985; AMBROSE, 1986; BEUKEM...

Human impact on marine benthic communities has traditionally been assessed using visible morphological traits and has focused on the macrobenthos, whereas the ecologically important organisms of the meio- and microbenthos have received less attention. DNA metabarcoding offers an alternative to this approach and enables a larger fraction of the biodiversity in marine sediments to be monitored in...

The course of environmental conditions and shelf macrobenthic communities off Central Chile ( 361S) during the strong 1997–98 El Niño (EN) event is compared with a subsequent and basically ‘‘normal’’ period (2002–2003). Changes in macrofaunal community, feeding mode structure, and biomass size spectra are contrasted over time with changes in oceanographic and sediment settings, in order to asse...

DNA-based monitoring methods are potentially faster and cheaper compared to traditional morphological benthic identification. DNA metabarcoding involves various methodological choices which can introduce bias leading a different outcome in biodiversity patterns. Therefore, it is important harmonize protocols allow comparison across studies this requires good understanding of the effect on diver...