Fig. 1From: Trophic niche partitioning of littoral fish species from the rocky intertidal of Helgoland, GermanyMap of study area around the island Helgoland (Germany) showing positions of sampling catches taken for biochemical analyses between 2009 and 2011 within a sampling radius of approx. 2 km. *Location of sampling sites is represented by stars: 1Dune harbour, 2North-east harbour, 3Pier of institute, 4South harbour, 5West pierBack to article page