Plastics Hinder Marine Life Reproduction
Chemicals found in plastics may be impacting “shrimp-like” marine creatures from reproducing, according to a University of Portsmouth report published in the journal Environmental Pollution. Toxic plastic additives changed the mating behaviors of critters called amphipod Echinogammarus marinus, the study concluded. The study tested four widely used chemicals found in plastics, including triphenyl phosphate, N-butyl benzenesulfonamide, DEHP and DBP – both types of phthalates that are regulated and not allowed to be used in products in Europe.
The researchers selected the four additives because of the potential danger they pose to human health. The creatures are known to pair up and lock together for two days while mating. Pairs of them were exposed to each chemical, and researchers monitored their behavior over four days, measuring the time it took for the creatures to mate. They found that, at best, it took much longer for the creatures to re-pair, and, at worst, they didn’t re-pair at all. “We must understand more about these chemicals and how they affect behavior,” said Bidemi Green-Ojo, lead author and researcher in environmental toxicology at the University of Portsmouth. “Many types of behavior - such as feeding, fight or flight mode, and reproduction - are essential in an animal's life, and any abnormal behavior may reduce the chances of survival. We are urging environment agencies around the world to take more notice of behavioral data because sometimes the data tells us things that normal toxicity tests don’t. Studies like this give a different perspective on potential damage caused by a specific pollutant.”