Sex in troubled waters: Widespread agricultural contaminant disrupts reproductive behaviour in fish

An Androgenic Agricultural Contaminant Impairs Female Reproductive Behaviour in a Freshwater Fish

Endocrine disrupting chemicals (EDCs) are a large group of environmental pollutants that can interfere with the endocrine system function of organisms at very low levels. One compound of great concern is trenbolone, which is widely used as a growth promoter in the cattle industry in many parts of the world. The aim of this study was to test how short-term (21-day) exposure to an environmentally...

Troubled fishing in Pacific waters

The Pacific island countries persist with tuna fishing policies that are significantly inferior to what appear to be the economically and environmentally sensible courses to follow. Economists have been offering advice over a fairly long period about better policy options without having any discernable favourable impact. This lack of success might be due, as Gordon Tullock once said, to the fac...

Oil on troubled waters.

either by changing the ice sheet's basal thermal regime or by introducing water into the path of the ice stream through periodic drainage events. If this proves to be the case, it would substantially change our understanding of the effect of subglacial lakes on ice-sheet stability. It indicates that basal hydrology needs to be accounted for in numerical models of ice-sheet motion because it has...

A bridge over troubled waters.

Lung transplantation (LTx) remains the only therapeutic strategy for the treatment of end-stage respiratory failure in selected patients [1,2]. However, clinical scenario of LTx is rapidly changing. Two aspects still characterize LTx in comparison with the transplant of other solid organs. First, only a limited number of lung grafts is considered suitable for transplant within the donors’ pool....

Aquaculture Navigates Through Troubled Waters