Intertidal zone

The Homarus americanus also known as the true lobster, the northern lobster, and the Maine lobster play a imperative role in the ecosystem. They are a ample source of food for America and all around the world because fishermen harvest such preponderant amounts lobster. Sometimes they are over fished so places such as the European Union, Canada, the U.S, and New Zealand are starting the manage the amount of lobsters harvested so that fishermen do not deplete the source. The reason they are so…

As a result of global warming, there is not a corner of the worlds’ oceans left unaffected by anthropogenic disturbances. The heating of Earth’s surface occurs through a life supporting process known as the greenhouse effect. This is a natural process where heat from solar radiation passing through the atmosphere is absorbed by gases and radiated back to the surface (Bradford A 2014). However, human activities, such as deforestation, industrial processes, and fossil fuel combustion are polluting…

Essay Answer for Question #1 Archaeologists set out to investigate the secrets of our past by examining the evolution of cultures that increase our knowledge and “understanding of formal and structural change in cultural systems” (Binford 425). To answer these antecedent questions, archaeologists must first sift through and analyze the important artifacts, ecofacts, and features that are found at their archeological sites., and find, categorize, and interpret the materials and findings at…

1.1 Background and problem statement Mangroves are tropical and sub-tropical woody trees that grow naturally in brackish waters within the intertidal zone. Mangrove ecosystems are highly productive and rich in biodiversity and offer a variety of goods and services, both economic and ecological. The estimated total area of mangroves is just above 150,000 km2, divided by 123 countries worldwide (Spalding et al., 2010). In tropical regions, these ecosystems constitute about 0.7 % of the total…

Unlike Palm Beach, Southport Spit predominately sits on native reserve. The width of Palm Beach and Southport Spit from the water’s edge to fore dune was 37 meters and 40 meters (table 4). The average wave height at Palm Beach and Southport Spit was 0.6 meters. These waves transport, deposit and erode materials such as sediment and sand, dynamically changing the shape of the coastline overtime. Currumbin Creek flows water through to Palm Beach. The word Currumbin is of native origin and means…

An ecosystem is complex set of relationships among the living resources, habitats, and residents of an area. It is a biological community that incorporates human, animals, plants, soil, water, rocks, and microorganisms living together in a environment. Ecosystem includes both biotic and abiotic factors. Biotic factors include all of the living things such as plants, animals, bacteria, fungi and humans living in an area. The interactions between them such as competition, predation, mutualism and…

As a rule, the gill area is greater in fast-moving crabs (Portunids) than in sluggish bottom dwellers; decreases progressively from wholly aquatic, to intertidal, to land species; and is greater in young crabs than in older crabs. Often the gills are enclosed in protective chambers, and ventilation is provided by specialized appendages that create the respiratory current. As in cephalopod mollusks, oxygen utilization is relatively high—up to 70 percent of the oxygen is extracted from the water…