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,
Upper West Side increasingly referred to as Lincoln Square by realtors who acknowledge a different tone and ambiance than that typically associated with the Upper West Side. This is a reversion to the neighborhood's historical name. The long high bluff above useful sandy coves along the North River was little used or traversed by the Lenape people. A combination of the stream valleys, such as that in which 96th Street runs, and wetlands to the northeast and east, may have protected a portion of the Upper West Side from the Lenape's controlled burns; lack of periodic ground fires results in a denser understory