As the parts per million of dissolved oxygen increases by 2 parts per million the number of fish observed increases. Once the PPM reaches 12 the ratio of fish declines showing diminishing returns.…
Migrating salmon died off on 2002 due to warm water, growth of toxic algae, and diseases…
A steep decline of predatory fish and a new oceanography that allows larvae to flow into their “nursery”.…
The need for water causes the lakes water level to fluctuate throughout the year, causing numerous impacts on the fish and wildlife populations. The fish are mainly impacted because of the strain on spawning that changing water levels can cause (Coops et al 2003). However, the management of fish have caused a decrease in the Kokanee Salmon population, and thus the Lake Trout population as well. Large numbers of anglers frequent this lake because of the Kokanee Salmon and Lake Trout. This body of water was known for its impressive fishing for these two species of fish, but that is now threatened due to a decreasing salmon…
If the amount of dissolved oxygen is increased, then the number of fish observed will increase.…
In this research and experiment we were testing whether or not we can maintain a healthy eco-system based off creating one from scratch. We initially went into this experiment confident that we were going to be able to keep our fish alive which was proven wrong mid-way through due to high levels of turbidity and the state of the fish. After collecting all of our data, we maintained a healthy terrestrial level and a good PH level which came as a surprise due to the death of our aquatic fauna and the levels of turbidity. In summary the project was a challenge in a sense of trying to keep our fish alive and whether or not the fish was retrieving enough nutrients and food. Recreating nature was not the easiest task.…
According to my hypothesis, once there is more dissolved oxygen in the water, there is an increase to the amount of fish present in the area where the water sample is obtained.…
ANS: As the dissolved oxygen levels of the water increase that the population of the fish increase as well.…
One major problem we are facing as a country is the rapid decline in several different species of fish in the ocean. Some specialist have actually looked into this to determine the cause for the decline in fish in the ocean. One of the major causes is that some species of fish are being fished more than others. It is even stated that more fish than the species are being able to actually reproduce. This alone could eventually lead some of the species into extinction. This is definitely something that can be controlled by humans. Typically, fishing period could stop any and all declines however that is not going to happen. Fishing is harder on the ocean environment then toxic pollution or degraded water quality. As human the only thing we can do if we aren’t going to stop fishing is stop targeting the same fish species to prevent extinction. We need to want to keep the environments balanced and as the primary cause of the decline fish stock in the ocean.…
According to Oceanography, Which of the following was the greatest obstacle to acceptance of Wegener’s theory?…
There are several hypotheses that are used to explain the causes of mass extinctions. Climate change, the warming or cooling of global environments over a short period of time, can lead to other occurrences. Shifts in climate can cause extinction by moving or eliminating entire habitats. Global cooling most impacts the tropical areas as in the polar and deep-water flora and fauna have already adapted to cool environments. The major effect of global warning is on the circulation of ocean currents and the reduction of dissolved oxygen in water bodies. Anoxia, no or little dissolved oxygen in the sea, is the major cause of marine extinction. Anoxia is linked to global warming and sea levels rising.…
undesirable trait of their location was the inconsistent amounts of natural game. Fish were only in great numbers during spring and early summer.(Doc A) The lack of natural food also contributed to their starvation.…
protein source for many people people. Over fishing exhausts the supply of the fish past the point of…
o Other problems, besides declining fish stock, that result from fishermen’s techniques for catching fish.…
Also destabilized food chains, which cause over populations of some species and the decline in several others. Another problem is harming the economy, if jobs are lost due to fishing companies shutting down due to the lack of fish, then many people will lose their jobs. This results in less tax money that the government receives and growing the amount of unemployed people worldwide. Trawling vessels have progressed to now contain a large capacity of fish and have several plants to package fish into tins, reducing the time the vessels have to return to shore and maximise the time spent in the ocean collecting more fish. Fishing industries are reducing fish reproduction by capturing and killing fish who have not yet matured or reproduced, are not the proper weight, have no market value or are illegal to catch. This quickens the amount of fish unable to continue to reproduce, which then drives the specific fish specie to become endangered. They use severe methods and equipment that is non-selective to fish, that unintentionally harm habitats or catch and kill other inhabitants that are of no value to fishing companies, meaning fishing industries are injuring or killing fish with…
