Water pollution could be causing infertility among shrimp-like creatures off the south coast of England, scientists have found. Prof Alex Ford said shrimps were "the canary in the mine", highlighting male infertility in other creatures. A decade ago little shrimp with very low sperm counts were observed in the Langstone Harbour Site of Special Scientific Interest. The scientists continued to monitor the shrimps, many of whom were in untreated water as the area is susceptible to storm water surges. The findings, published in Aquatic Toxicology, show they could be exposed to contaminants from sewage, old landfill sites and chemicals such as those in anti-fouling paints.
Warning over Langstone Harbour shrimps' low sperm count
Sperm Forensics - Touch Me, I'm Karen Taylor - British Comedy Guide
The app, called Expedition White Shark, includes numerous features that let users learn more about these amazing animals, including the ability for users to track satellite-tagged great whites. The app displays a map with live tracking data for the sharks tagged with real-time tracking devices, so that users can follow these sharks at the same time as the research scientists! The app also includes a game that lets you learn about the life history of great white sharks by controlling a virtual baby great white. Users explore the marine environment near Southern California while eating fish and avoiding threats like gillnets and pollution. The app is available on iTunes for iPhone and iPad For more information see expeditionwhiteshark. When I recently heard rumors that a sperm whale calf had washed ashore on the shores of Montauk, and that this calf had a massive shark bite on it, I became very interested. Chris Fischer and the National Geographic Channel made that expedition possible and some of the events are portrayed on two episodes of Expedition Great White.
The CSI-style tool will let you identify body fluids around your home and office. Black lights or UV lights are used by crime scene investigators to identify body fluids - including semen, sweat, saliva and urine. Semen happens to glow the brightest because of its particular mix of chemicals. This is because bodily fluids fluoresce - that means they absorb ultraviolet light and re-emit it as visible light. To create the semen-detecting tool, you need to take your phone and cover the flash with a small piece of sticky tape.
A booklet and CD were provided, aimed at stage 5, year 10 students and aligned with syllabus outcomes. Students were asked to define terms, construct a hypothesis, count live and dead sperm from images, fill in missing data, draw graphs and draw conclusions. The CD contained a copy of the competition plus additional information including details of careers in Agriculture. Microscope slides of sheep sperm were also provided as a class resource with a practical exercise to follow. Teachers said they will adopt the competition as an ongoing class exercise.