Jellyfish overpopulation problems

When additional feed is provided, eutrophication of the waters takes place. These blooms are increasing in intensity, frequency, or duration, says Lucas Brotz, a jellyfish expert at the University of British Columbia. Fishing vessels, operating in the near shore waters, net huge quantities.Nuclear and thermal power plants use coastal waters for cooling, and discharge the heated water back into the seas.

Biologist Lisa-Ann Gershwin writes “As seas become stressed, the jellyfish are there, like an eagle to an injured lamb – more than just as symptom of weakness, more like the angel of death.”We need to urgently change the way we treat our oceans and the beings in it.First, eutrophication needs to be controlled by reducing the nutrients that we indiscriminately empty into the oceans. While killing larger fish, eutrophication supports the survival of plankton, larval sardines and other organisms, which the Jellyfish feed on. These "jellyfish blooms" have also caused serious problems for power stations… Ethanol is an amazing fuel; it burns well and works in the engines of most cars. These components are the fundamental parts of most cells with additional small percentages of other elements. By 1993 it was 95 percent of the total biomass of the Black Sea.Jellyfish now swarm all over. Why are we facing overpopulation now?The human race has created conditions leading to an explosion of jellyfish blooms around the world.The waste from farms and human settlements are thrown into waters that lead to the ocean.

A bloom of jellyfish has been reported off the Visakhapatnam coast for the first time. For example, overfishing not only empties the ocean of important species of fish, but also some gear types such as bottom trawls scrape the ocean floor, damaging the habitat of other marine organisms. These long tentacled gelatinous marine creatures are beautiful and deadly.There are over 1200 known varieties of Jellyfish.

Waste needs to go through much more stringent treatment before it can be let out into the sea.We need to immediately stop overfishing. Purcell found that 11 out of 15 temperate jellyfish species increased in numbers in warmer water (Purcell, 2007). The consequences of being oblivious to the steady increase could result in further severe conflicts. This environment suits jellyfish who thrive. New research suggests a method of turning proteins into ethanol alcohol as well as carbohydrates and lipids (Hsieh et al., 2001). Then, we placed two smaller jellyfish, the oral arms that were cut off, as well as two larger jellyfish cut into strips into the freeze drier (Table 1). One is more likely to die from a jellyfish sting than a shark attack.As the population of jellyfish spins out of control, beaches have become dangerous for humans. Scientists are also concerned that warmer water could disrupt the ocean conveyor belt, the system of global currents that is largely responsible for regulating Earth’s temperature. Australia and Southeast Asia have the dreaded box jellyfish, whose venom causes the heart to seize. After hauling them onboard, we put them in a prepared container with seawater collected from the ocean in a bucket. When a species of a fish declines, jellyfish have seemed to fill the empty niche. Most of these smacks of jellyfish were in areas where plankton organisms were abundant, near the shore.The aggregations of jellyfish are becoming a major problem. They are wreaking havoc all around the world by disrupting food chains, causing massive power plant outages, jeopardizing fisheries and tourism potential.Jellyfish eat plant plankton and ichthyoplankton – the eggs and larvae of fish – as well as young fish, reducing fish populations. Throngs of jellyfish have disrupted power generation everywhere from Muscat to Maryland, from South Korea to Scotland.Jellyfish have been around for centuries. “Over the past 50 years, temperatures across Alaska increased by an average of 3.4°F” (Karl, 2009). Could jellyfish be a feasible fishery in Alaska? The aggregations of jellyfish are becoming a major problem.

This floats the jellies to the surface. Worldwide, there are many jellyfish in the bycatch of fisheries, and the jellyfish are a disaster to the fishermen (Moffett, 2007). They clog cooling water intakes at power plants, causing power reductions or shutdowns. Box jellyfish fall under the new classification of cubozoans. Jellyfish suffocate desirable species essential to the fishing industry such as the pollock. Thus, the remaining freeze-dried jellyfish were cleaned by brushing off the excess salt. With this new technology we could turn jellyfish blooms into a valuable resource and an economic opportunity.To harvest smacks of jellyfish, scuba divers with an air hose could blow bubbles in the umbrellas of jellyfish. While the protein is turned into ethanol (Huo, 2011), which can be converted to fuel cars or made into a drink, the salt could be marketed as jelly salt. “Reduced swimming, due primarily to frequent collisions among medusae in the aggregations, also may have caused the medusae to become concentrated” (Purcell, 2000). (Gowell, 2004). Although scientists have estimated that there are jellyfish blooms every 20 years, there have been growing interests and concerns in the massive jellyfish blooms. Ten minutes after contact, victims suffer excruciating lower back pain, to incessant vomiting, to constricted airways, brain clots and heart failure. They have no respiratory or circulatory system, so oxygen is diffused through their epidermis. “Medusae swimming vertically were found in higher densities than medusae in mixed orientations” (Purcell, 2000). By removing a curb on jellyfish population growth, overfishing “opens up ecological space for jellyfish,” says Anthony Richardson, an ecologist at CSIRO Marine and Atmospheric Research in Cleveland, Australia. Although they seem insignificant, in large aggregations, jellyfish have damaged the economic success of power plants and fisheries. Toxic chemicals from factories and farms and trash from cities all degrade the world’s ocean (Folger, 2013; Gershwin, 2013).Some of these changes however, will present positive opportunities. Fish like anchovies, sardines and menhaden which are plankton eaters, are harvested for fish meal for aquaculture.