Age determination in fish fish. Johannes Reibisch, working for the Commission of Scientific Investigation of German Seas at Kiel, attempted to use Hoffbauer’s techniques to age plaice ("Plueronectes platessa") but found it difficult to accurately discern annuli. He decided to study a different structure and in 1899 he published the first procedures using otoliths as an aging structure. A fellow scientist also with the German Commission at Kiel, Friedriche Heincke, also frustrated with difficult scale annuli, further studied other structures to age fish. He discovered annuli in the vertebrae, opercula, and pectoral girdle and published his findings in Heicke 1905. The works of Hoffbauer,
Which Side Which Side Podcast is a member of the following syndicates, networks & affiliates: Which Side Media Collective, Channel Zero Network, Vegan Feed, Core of Destruction Radio, and the Authority Smashing Network. Which Side Which Side Podcast is a political podcast hosted by animal rights activist and Grand Jury resister Jordan Halliday and Jeremy Parkin. It features various guests with discussions involving animal rights, earth rights, atheism, anarchism, and many other topics. Which Side has been releasing episodes every week on iTunes and Stitcher since November 2012. The podcast takes its name from the folk song Which Side Are You On?.