Provided that sharks have not been fished out of certain areas it is reasonable to assume that their disappearance would be a result of the destruction of a suitable habitat. The fact that shark species are so diverse and inhabit every ocean on the planet makes them key players essential to the ocean environment. Yet despite their importance in the marine food-chain they remain a low conservation priority. For all their evolutionary success and apparent menace, sharks are incredibly fragile, unable to withstand the increased pressures forced on them by the voracious world fishing industries. This is partly due to the fact that sharks are slow growing animals that mature late, live long, and have a low reproduction
This will destroyed the habitat of the species and they might die because they do not have a place to live. Some species can only survive in certain area, as the water temperature increased, some species might not be able to bear the temperature and forced to move to other area (World Wide Fund for Nature, n.d.). Climate change also caused rising sea level and will cover the wetland and other low lying habitat where fish reproduce and spoilt mangroves, the nurseries for some economically critical fish species (Great Barrier Reef Marine Park Authority,
Ecosystem effects Oyster hatchery in Grand Isle, Louisiana Clean up efforts have included unprecedented amounts of chemical dispersants, which are used to break up oil slicks. Although detailed effects of the chemical dispersants on wildlife and ecosystems are not well studied, the chemicals used are toxic to a variety of organisms, and they have never been previously used on this wide a scale. Because dispersants break oil up into tiny droplets, marine biologists fear that fish larvae, zooplankton and filter feeders (such as oysters), will be at risk from eating the large quantities of “non-visible” oil. Chemical dispersants are likely to impact deep-water animals downstream of the well. Oil will likely reduce the amount and health of all
Keeping the Ocean Free of Debris Pollution in the Persian gulf is negatively impacting marine life How much are we trashing our ocean? CNN, February 12th 2015. Arabian Gulf coral reefs dying a slow death. Gulf news, June 10th, 2014. Spill, Dolphin Deaths Spark Alarm At Persian Gulf Pollution.
However, zebra mussels have a negative effect on the environment because they eat tiny food particles that they filter out of the water, which diminishes food for larval fish and other animals, and causes aquatic vegetation to grow. Also, zebra mussels sometimes attach themselves to native mussels which can kill them. They also posed a big threat to pipes for water utilities, where they clustered on each other and severely constricted the pipes. An marine example of an invasive species is the european green crab. European green crabs first appeared off of Cape Cod in the 1800s, coming from the European coast and northern Africa from seafood shipments or ballast water.
The international politics of cleaning our oceans”. Plastic debris and trash caused malnutritions in sea animals, since the consumption of waste in the ocean make them feels like they are full and no longer need to in. While in fact, the plastic and trash they consumed have no nutritious values to keep the sea animals healthy. Plastic debris can also caused damage to internal organs of these animals, causing internal bleeding that can lead to a premature
My focus shifted to look at the big picture, which is understanding the coherence of socioecological systems. It all started when I witnessed sea turtles kept alive emaciating until slaughter in a public market in Alexandria, Egypt. I directly contacted the Mediterranean Association to Save the Sea Turtles (MEDASSET), an international NGO, to document this illegal trade from boat to buyer. In my attempt to expose the practices by two major turtle traders, one chased me with his slaughtering sword, the other kicked me out of the public market. However, I secretly took the photos that documented their violation on another occasion.
Pollution of water by wastes from producing plants and by sewage of metropolises finished the work of obliteration by now commenced by heedless fishermen, but the contamination of the water is distant extra weighty than over-fishing. Seals are extremely sensitive amid the marine mammals that amass toxins in their blubber. Marine mammals that rely on blubber to manipulation body temperatures amass higher level of toxins. As animals possessing blubber have elevated number of obese, elevated number of toxins become amassed in the blubber marine animals. Countless toxins become stored in fat.
We don’t live in the sea yet we are still affected by marine pollution, why? Because 70% of oxygen we breath is produced by marine plants thus if marine plant are affected by the pollution and there is shortage in oxygen or animals eat those affected plants in the end we will be affected. Japan being one of the biggest consumer of seafood can be affected, their people can be affected as humans seeing as we are on the far end of the food chain thus if a fish living in the contaminated waters of Japan falls ill, is then caught and served as food to the people ultimately they will fall sick too. When this takes places the consumer can face a great deal of problems from hormonal problem, kidney damage, reproductive problems and nervous system
Although it was initially assumed that the ocean has an abundant and limitless supply of food resources, the destructive impacts of fisheries have now come to light. It is becoming clear from decades of fishery activities that these practices are highly detrimental to the aquatic environment, be it freshwater or marine. Furthermore, fisheries are noticing declines in the abundance and variety of the fish and invertebrates that are harvested. This is not only due to overexploitation but also physical and ecological damage to the fishery environment (NOAA, 1998). In fact, fisheries or the commercial harvesting of fish and shellfish is by far the most destructive force in the oceans today.