The protected areas in marine life actually have a wide range of social, cultural, ecological and economic benefits, which I have talked about in this guide. The extent to which these benefits can be achieved are largely and completely dependent on design, location and management as well.
A very well designed marine protected area can help in promoting very healthy ecosystems which are completely resilient and are also able to adapt to stress. It is so because they are complex systems which are inbuilt with buffers. The resilience has been known to enable marine life community to which stand some pressures while also retaining their basic function. This includes the delivery of the ecosystem services which we all rely upon. There are some critical services which include climate regulation, nutrient recycling, oxygen production and also the production of protein for human consumption.
The proper complexity of marine ecological dynamics is actually making it so hard for scientists to properly assess the impact of human-related activities on the marine environment. Well, I can say with absolute certainty that human activities have negatively impacted the marine life because, thousands of species have gone extinct and even more have gotten endangered, because of said human activities. The coral reefs are actually getting significantly impacted, and a lot of them are dying out, because of human activities. There is so much plastic in the ocean, and this plastic starts affecting the marine life. Because marine reserves exclude fishing, they can actually provide proper and useful information on all of the characteristics of a population that has not been exposed to fishing. This can then be compared with those of the population that has been subjected to fishing. This will also improve an indication of any extent which is cost by fishing. We can then inform the fisheries to make certain decisions.
The areas that are protected by individuals actually benefit commercial and recreational fissures because it contributes to fishing stock. It basically means, the areas that are protected have proper numbers of fish that can actually be useful for fishing. Marine protected areas give nature time to heal from human activities. Marine reserves actually support the denser population of larger fish and even resident species which are also heavily fished.
There was a recent study of some marine reserves, and it was found that they were 13 times larger and also more than the legal size limit. This actually has some very important implications when it comes to reproduction. Large fish can actually produce way more eggs than smaller fish. We need to consider these things, as well. There is some evidence that suggests that the larvae which are produced by larger fish have way better survival rates.