Highest high tide Supralittoral Lowest high tide High tide zone (backshore Highest low tide Middle tide zone Ghost shrimp Beach hopper Lowest low tide Low tide zone Ghost crab Bristle worm Sublittoral zone Clam Sand crab Lugwomm Sand dollar Sand star Heart urchin Ice cream Sea cucumber cone worm Horseshoe crab Intertidal zonation of the sediment-covered shore
Shanghai Jiao Tong University Intertidal zonation of the sediment-covered shore
上泽充通大学 Shanghai Jiao Tong University Rocky shore Rock louse (Ligia) Spray zone Periwinkle (Littorina) Highest high tide Limpet(Acmaea) Buckshot barnacle (Chthamalus),(Balanus High tide zone Periwinkle (Littorina) Chiton Limpet(Acmaea) (Nuttalina) Lowest high tide Mussel(Mytilus)(Modiolus) Chitons and limpets Middle tide zone Hermit crab(Pagurus) Goose barnacles (Pollicipes) Sea star Acorn barnacles Highest low tide (Asterias-Pisaster) BBalanue Many species of animals and Low tide zone plants Sea anemone 小 Lowest low tide (Authopleura)
Shanghai Jiao Tong University Rocky shore
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Shanghai Jiao Tong University
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Shanghai Jiao Tong University 厦大白城海滩
上游充通大￥ Shanghai Jiao Tong University Distribution of species on Earth The land has more species Land species 1,750,000 World species because it has greater (86%) environmental variability than Marine species (14%) the ocean Most ocean species are Benthic (98%) benthic because of greater Pelagic environmental variability 250,000 (2%) Marine species compared to pelagic environments Figure 12-6
Shanghai Jiao Tong UniversityDistribution of species on Earth The land has more species because it has greater environmental variability than the ocean Most ocean species are benthic because of greater environmental variability compared to pelagic environments Figure 12-6