Sweden and the international research community recently faced yet another research misconduct scandal. It was about a Science paper by Oona Lönnstedt and Peter Eklöv, which in 2016 made worldwide headlines with its findings that young fish larvae (or fry), namely Eurasian perch, would eat up plastic pollution like teenagers eat fast food. It soon turned out the research was apparently never performed as described, the original data was missing (allegedly stored only on a laptop, which was then stolen from a car), the results likely made up. The Lönnstedt & Eklöv 2016 paper received an editorial expression of concern in December 2016 and was eventually retracted on May 26th 2017 following misconduct findings by the Swedish Central Ethics Review Board (CEPN), while the two Swedish whistleblowers Josefin Sundin and Fredrik Jutfelt, initially themselves stiffly criticised by the University of Uppsala, were finally exonerated (see panel verdict here and here, further documents here and here). I also make available here the original report by the whistleblowers to the University of Uppsala and CEPN, detailing their “Key points highlighting scientific misconduct by Lönnstedt and Eklöv”. For further reference, read Martin Enserink’s reporting for Science here, here and here.
However, there was more to that Science paper than fraudulent science. Even if the results were not made up, their objective scientific value would still be very questionable, because it had very little connection to the reality of the plastic pollution in the oceans and the fish feeding behavior. The uniformly small, freshly industrially synthesized plastic balls which were fed to the fishes were not really representative of the actual plastic particles polluting our seas. But even those arbitrary chosen particles were not likely to have been eaten by the fishes voluntarily. If the fishes ever did swallow those, it was probably because they were simply made to, being at the point of death by starvation, something which rarely ever happens to actual plankton-feeding fishes in the sea. Of course one cannot expect peer reviewers to spot misconduct and data manipulation, but objectively assessing scientific methodology, result and conclusions of a manuscript is actually what the peer review is all about. One does wonder why the “highly qualified, dedicated” reviewers at Science failed to notice all these obvious scientific shortcomings, and instead decided that Lönnstedt & Eklöv work belonged indeed to “the very best in scientific research”. Was it because the socially and ecologically relevant conclusions sounded so important and welcome, that one simply had to blindly ignore the poor science behind them?