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How Much Influence Does Plastic Have On Marine Life
- Dec 14, 2018 -

Plastics play an important role in our lives. In our lives, almost everything is related to plastics. If plastics disappear completely, we believe that our lives will change a lot. But now plastics also affect the global environment, especially plastic waste can be said to have changed the entire planet, and now these tiny plastics have also had a major impact on the marine ecosystem, resulting in fewer and fewer fish in the ocean. Even affecting the reproductive capacity of fish, what is going on?

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How much influence does plastic have on marine life?

Scientists conducted a test in which the seedlings of squid were placed in water, and then some nutritious meals that fish often eat, and contaminant plastics were used. As a result, these small fish did not choose to eat the usual food. Instead, they did not choose to eat the usual food. I did not hesitate to choose plastic, which means that it directly eats plastic as a normal food and eats it inside the stomach. After the result is actually published, it makes people feel particularly uneasy because the fish eats plastic and affects its body. Health even changed some of the daily behavior of fish.


The scientists were very surprised by the results and said that they were not sure why the seedlings of these carp would choose plastics instead of the nutritious meals they usually eat. But in any case, this new data may reveal from the side why there are some rare fish populations in the ocean that are dramatically decreasing.


Of course, in addition to the use of squid for research, scientists have also conducted research on many different fish species. The results show that many fish in the ocean prefer to eat plastic. It is not like the food they usually eat. Everyone knows that the plastic pollution in the ocean is now more and more serious, and many plastics have been broken down into smaller pieces, which are what we usually call miniature plastics. These miniature plastics are constantly in the ocean. The spread is first eaten by some fish and some smaller aquatic organisms, and then it will be ingested by larger marine organisms like posters, so the whole food chain can be said to have these tiny plastics. shadow.

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How much influence does plastic have on marine life?

Of course, these miniature plastics are not only common in the ocean. In addition, many micro-plastics are toxic. It is these chemicals that cause marine organisms to ingest these plastics and thus affect their health and even directly lead to the death of these marine organisms.


So the scientists did a related experiment, which was to put the eggs of the squid in different aquariums, and then put different plastics in them, high concentration, low concentration and no plastic, so the fish The success rate of egg hatching is also different. In the fish tank without plastic, the fish has a hatching survival rate of 96%, and in the high-content fish tank, its survival rate is only 81%, which indicates that these plastics seriously affect the survival rate of fish.


Not only are juveniles seriously affected during the incubation process, but they are also greatly affected by the process of growth. After the scientists in different aquariums, the growth process of these fry was also observed. As a result, the growth of the larvae in the tank without any plastic is relatively normal, and those young fish tanks containing high levels of plastic The growth of fish is relatively slow.


Scientists say that the young fish in these high-nutrient fish tanks grow slowly. It is very likely that these fish eat these dangerous plastics and use them as food, then when they enter their bodies, they These garbage can't be digested very well, so it will get stuck in the digestive tract of these fishes, and eventually these fish are likely to starve to death.


How much influence does plastic have on marine life?

And this study actually shows that there may be a lot of marine populations in the ocean due to this reason, the number is decreasing, and many seedlings may also cause death due to such reasons.


Not only is this the reason, but the scientists also put the natural enemies of this juvenile into different fish tanks, and found that there are no plastic fish tanks in the tank, their reactions will be more sensitive, when the predator is found It will quickly escape, and after 24 hours, at least half of the survival rate can be retained. However, in the higher content of the aquarium, all of these juveniles disappeared, which means that their ability to react will be greatly reduced.


Scientists say that now we have plastic on almost every corner of the planet, but how big is the impact on wildlife? Research in this area is still very limited, so I will continue to conduct in-depth research in the future, hoping to uncover more mysteries and find ways to solve this problem.