Total mercury (THg) and methylmercury (MeHg) concentrations were investigated in two different species from the Izmir Bay. The levels of THg and MeHg in fish tissue, ranging from 4.4 to 221.4 μg THg kg and 3.8-194.8 μg MeHg kg (wet wt.), varied according to sampling point and season. The results indicate that none of the fish analysed was ≥ 0.500 μg g for THg and ≥ 0.300 μg g for MeHg and nor d...

1. Fifteen years of census data from a population of the red harvester ant (Pogonomyrmex barbatus), 5 years of census data from populations of Aphaenogaster cockerelli and Myrmecocystus mimicus at the same site, and longterm precipitation data from a nearby weather station were used to examine how nearest interspecific neighbours, climate, and life history influence P. barbatus colony mortality...

The ants Aphaenogaster cockerellz and Pogonomyrmex barbatus compete for seed resources in the Chihuahuan desert. Previous work showed that intraspecific competition in P barbatus is more intense between near neighbors with overlapping foraging ranges and depends on colony age. Just before reaching reproductive maturity (3-4 y), colonies are more aggressive and persistent in intraspecific compet...

Although goatfishes (Mullidae Rafinesque, 1815) are among the most important commercial fishes in Turkey, no research has been found investigating characteristics and spatial patterns of goatfish fishery. Here, we assessed fishery Turkey based on microdata set Turkish National Fishery Statistics gathered by Statistical Institute (TÜİK) between 2014 2017. In this context, investigated variation ...