Figure 10.17
Mangrove roots. Mangroves have broad stilt-like roots that stand above low tide, provide support for the plants in loose sediments, and allow the plants to exchange gases with the atmosphere. Here, a juvenile lemon shark (Negaprion brevirostris) is swimming among mangrove roots in the Bimini Islands of the Bahamas.(© Brian J. Skerry/National Geographic/Getty Images)