Essays on Marine Life

People often think death means sadness and desperation, but do you know death also means contribution and splendid? Whale Fall is a good example of a response to this sentence. Whale fall is a pretty word to describe the death of a whale. Their carcasses — known as whale falls — become an energy-rich habitat, drawing a wide variety of organisms from across the deep sea to feast. A whale died and sank to the deep water(over 1000 meters), often land on the seabed, many organisms will break down ...

Increased human utilization of the world’s oceans has made it important for industrialized countries to actively monitor marine environments in 4-dimensions. The ocean, like many aquatic environments, is presently under-sampled both spatially (3D) and temporally (+1D) due to current approaches to data gathering. Expeditions are manual and labor intensive, relying on highly-qualified crews and highly-equipped ships that essentially equate to a “lab-on-the-ocean”. Day-rates for these vessels ...

Anand et al. (1997), have stated that decades ago bioactive compounds have been discovered from marine organism and thought to be of great use and significant in fighting against a pathogenic microorganism. Hughes et al. (2010) have said that due to the major threat of getting infected by microbial infections caused mostly by bacteria, marine organism have developed complicated natural compounds that have antibacterial property. In the study of Benkendorff (2001), multiple marine ...

In the near future, a future that most middle-aged adults living today are more then likely to see sometime in their lifetimes, crystal blue water that once surrounded Florida’s coasts will be coated by toxic algae blooms that harm sea life and the life that surrounds the sea; massive algae blooms will have rendered marinas and inlets useless to the public. Beaches that once were filled with crystal clear blue water and enough people to start a riot are now dead and haven’t seen a sign of life ...

Crayweed, or known by its scientific name Phyllospora comosa, is a species of brown algae that is primarily endemic to Australia’s east coast, spanning from Tasmania all the way up to Port Macquarie usually along shallow reefs. In addition, Crayweed was also abundant along the coastlines of Sydney. However, in 2008 it was discovered that populations of Phyllospora comosa had drastically changed in density, especially along Sydney’s coastline, spanning from Cronulla to Palm Beach. It is ...

Marine environments ant its sediments act as a sink, accumulating many persistent pollutants that will be slowly released and made available for the trophic chain (Di Leonardo et al., 2014). This scenario suggests a need to apply methods for the identification, evaluation and intervention to reduce the risks for the environment and inhabitants. Among several technologies, that of soil washing, based on the chemical-physical process, can be efficiently applied to reduce contaminant ...

Imagine living in a world where it's not as clean as you remember. All you can see is clear bottles lining the surface of your world, alongside a thick layer of filth including plastic bags, milk bottles and fellow ocean life struggling to inhabit the area. Over one million seabirds and one-hundred-thousand sea mammals are killed by pollution every year. 8.1 Million tonnes of mismanaged waste are entering the oceans every year. This is what we are putting ocean life through just by our ...

This work presents the effect of a soil washing procedure on a biological system (Mytilus galloprovincialis) maintained in a mesocosm system designed to maintain the resuspension of the sediments, as it can happen in open water in case of storms or turbulence induced by the wave motion or by boats. The set up included: 1- a mesocosm, consisting of uncontaminated seawater; 2- a mesocosm consisting of contaminated sediment; 3- a mesocosm conceived to test the soil washing process efficiency ...

Corals belonging to the animal kingdom, are in the same phylum as Anemones and Jellyfish. This phylum called Cnidaria, is known for having stinging structures in their tentacles, alternate life cycles between asexual sessile polyps (anemone-like and soft bodied) and sexual free-swimming medusas and lastly their mouth/anus leading to where digestion, circulation, and gas exchange takes place. Corals also serve as the foundation of the ocean food chain and offer shelter for numerous aquatic ...

Opisthobranchia, a specialized group of phylum Mollusca, is the third largest group in Gastropoda. There are more than 3,000 known species of nudibranchs (Holland, 2008) with their habitats ranging from intertidal areas to seabeds a mile deep. Most of the species are exclusively benthic with some exceptions like Scyllaea pelagica which has adapted to the pelagic environment provided by floating masses of Sargassum. Until 2013, 311 species of opisthobranchs have been reported from the Indian ...

Sharks get a bad name every summer for attacking people or being seen on beaches every year. What most people don’t understand is that they are very cool, interesting, and very gentle marine animals. Sharks are part of the Chondrichthyes class and are found mostly in marine, but some can be found in freshwater. Through the years scientist have researched sharks in many things and have learned a lot in the years. One thing that is still being researched is there migration with where and how ...

There are numerous techniques for characterizing and monitoring marine habitat; especially coral reefs. These techniques can be grouped into three main types: physical surveys, off-water remote sensing surveys and on-water remote sensing surveys (Sabol et al., 2002). First, the physical surveys or in situ sampling techniques can be described as the direct method of sampling and observing the seafloor by using grabs, dredges, corers, video, photos and trawls. These methods produce data with ...

The video mosaic method offered an efficient approach for the spatial analysis of cold water coral carbonate mounds and quantifying coral abundance. Having a downward facing camera to analyse the Piddington mounds is essential when studying the carbonate mounds to get an accurate representation of the Belgica Mound Province. Other studies include Grehan et al. 2005 and Guinan et al., 2009 which confirm studies using downward facing ROV footage for cold water coral abundance as successful. The ...

The safety monitoring of the offshore platforms and oilfield equipment during the life of the structure is necessary. In these structures, environmental and calamitous factors can have devastating effects on the life and health of the them. It can be named germination and crack growth in the structure as destructive effects. For this purpose, structural health monitoring systems are used to predict and prevent the occurrence of damaging effects. Kauwley and Adams (1979) were the first to ...

The Gulf of Mexico (GOM) Loop Current (LC) forms as water flows from the Caribbean Sea into the GOM through the Yucatan Peninsula. The LC intrudes north, and eventually forms eddies which shed periodically and drift to the westward, driving the deep circulation throughout the Gulf of Mexico. The LC has a complex cycle of northern excursion, detachment of eddies, with sometimes several reattachments before finally detaching from the main LC circulation before propagating westward throughout the ...