Abstract Background It is known that aquaculture may produce negative environmental effects on marine ecosystems. Southern Chile one of the most important salmon and mussel-producing areas in world. Here we assess ecological status benthic communities near farming centers Caucahue Channel, Chiloe, which has been used intensely for mussel production 30 years. Methods The macrofauna, sediments wa...

The chirality associated with broken time reversal symmetry in magnetically doped topological insulators has important implications to the quantum transport phenomena. Here we report anomalous Hall effect studies Mn- and Cr-doped Bi$_2$Te$_3$ varied thickness doping content. By tracing of loops, find that Mn-type clockwise is strengthened by reduction film thickness, which opposite Cr-type coun...

One important quality measure of a scientific journal is its scope, not just the scientific coverage, but also the geographical impact. In fact, the primary classification system, used to evaluate and grade scientific journals' quality in Brazil, known as Qualis CAPES, when classifying a journal attributes a quality grade A, B or C, and also adds an indication of the journal ́s geographical impa...

The introduction of the European Water Framework Directive has increased interest in benthic foraminifera as a biomonitoring tool. This prompted need to standardise methods used analyse foraminifera, including which sediment fraction analyse. In some regions produce small (< 125 µm) adult tests, and current study assessed effect analysing > 63 µm or on determining Ecological Quality Status (Eco...

Benthic macroinvertebrates are helpful bio-indicators providing better understanding of modified and perturbed aquatic ecosystems. This study seeks to determine the ecological status diversity macroinvertebrate community in relation environmental variables western Nigerian offshore waters within Gulf Guinea. Macroinvertebrate samples were collected from five (5) sampling stations using a Van-ve...