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Ligia Guerrero Vallejo
''Ligia'' is a genus of isopods, commonly known as rock lice or sea slaters. Most ''Ligia'' species live in tidal zone cliffs and rocky shore, rocky beaches, but there are several fully terrestrial species which occur in high-humidity environments. Ecology Coastal ''Ligia'' species exhibit a mixture of terrestrial and marine characteristics, drying out easily, needing moist air and proximity to water to retain water. While they have gills and can exchange gas under water, they only do so when escaping terrestrial predators or being dislodged by wave action. They do not move swiftly in the water and are open to marine predation. They are well adapted to rocky surfaces and avoid sand, which opens them to terrestrial predation and desiccation. Taxonomy It has been suggested that ''Ligia'' is more closely to marine isopods than it is to true woodlice. Species Species separation is at times difficult because of sexual dimorphism. For example, males usually have longer and wide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ligia Oceanica
''Ligia oceanica'', the sea slater, common sea slater, or sea roach, is a littoral zone woodlouse, living on rocky seashores of the European North Sea and Atlantic coastlines. ''L. oceanica'' is oval, twice as long as broad, and may reach up to in length, making it one of the largest Oniscidae, oniscid isopods. Its colour may vary from grey to olive (color), olive green, and it has large compound eyes and long antenna (biology), antennae, two-thirds as long as its body. ''L. oceanica'' is found in temperate, temperate waters from Norway to the Mediterranean Sea, and from Cape Cod north to Maine. It is a common species, occurring wherever the substrate of the littoral zone is rocky, and is especially common in crevices and rock pools and under stones. It is a nocturnal animal, nocturnal omnivore, eating many kinds of seaweed, diatoms, and detritus, with a particular fondness for bladder wrack (''Fucus vesiculosus''). ''L. oceanica'' individuals live for 2–3 years and usual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
