Page 1 of 1 - About 4 Essays
  • Hemigraspus Sanguineatus

    Trophic Cascade: Effect of Hemigraspus sanguineus on Intertidal Food Chain Abstract Hemigraspus sanguineus (Asian crabs), an invasive species, are found in multitude on east coast and more precisely along the long island sound. The end goal of this experiment is to see what long term effect of having this invasive crab could have on other organisms in the tides, more specifically littorina littorea (periwinkle snails). This would be achieved by studying the interaction between Asian crabs, periwinkle snail, fucus and ulva. Introduction Hemigraspus sanguineus by large possesses the subtidal and intertidal rough shoreline, with a checked inclination for cobble shorelines. It has additionally been known to live on man-made structures, for example, seawalls and manufactured reefs, and can endure an extensive variety of water salinities and temperatures. H. sanguineus is a very astute omnivore that has been known to feast upon green growth, adolescent fish, snails, barnacles, and worms. Littorina littorea or commonly known as Periwinkles, are a substantial group of gastropod mollusks found on the shore. The edible snail is maybe the best-known types of this family, as it has been gathered and eaten for quite a long time as far as human history records (Emmerson 2013). The flat periwinkle grazes on detritus and microorganisms. It also feeds on green seaweeds such as sea lettuce (Ulva spp) and species of Enteromorpha (Clinchy 2016). Fucus distichus is a bounteous and prevailing…

    Words: 508 - Pages: 3
  • Coral Reef Types

    The book, Coral Reefs, by Simon Rose, presents that categories of coral reefs, what coral reefs are home to, and the dangers that they may face. Coral reefs are made up of coral polyps that attach and multiply to a limestone skeleton called a calicle. Coral reefs are categorized in three ways, which is by their type. 1. Fringed reef, 2. Barrier reef, 3. Atolls. The fringed reef either borderers the shore near a lagoon, or it will be directly attached, next is the barrier reef. The barrier reef,…

    Words: 755 - Pages: 4
  • Why Is Coral Bleaching Important

    The corals that make reefs around the world may look like one giant organism but they’re actually some of the most diverse ecosystems on the planet, with many small features working together to support a variety of marine life. They are typically found in warm, shallow waters of tropical environments, especially in the Pacific Ocean. Thousands of jellyfish-like animals called polyps, connect together to form colonies. These colonies host algae, that provide corals with food, as well as their…

    Words: 945 - Pages: 4
  • The Camariid Period: The Ordovician Period

    weather the south was cold and dry, and the majority of the area was covered in ice caps. The northern area dealt with immense heat and moist and arid conditions. Also the swamp forests from the Carboniferous period were being replaced by gymnosperms plants. Also reptiles have developed a bit more and had thicker skin and other animals were developing and adapting to their climate. At the end of the period there was a sudden loss of life and it greatly impacted earth. 7. How was the Triassic…

    Words: 983 - Pages: 4
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