Does salt have any impact on the aquatic life?

Salt is a natural thing such as seawater and estuary, and the incoming tide may mix with the new freshwater river system. Several species can adapt to their body to accommodate these salinity fluctuations. Salmon such as squid and sea bream is a good example, and the movement from the sea to fresh water is an important part of its life cycle.

Changes in salt concentration in the water system are also attributed to unnatural effects. The changing water stream changes the drying rate and then changes the composition of the water. Especially in rivers with dams and regions where climate change is severe, reduce the amount of water to increase salt

Creatures can respond to salinity changes in two ways. Even if the salinity of water changes, you can adjust the amino acid concentration of the tissue to the concentration of water or maintain osmotic pressure.

In the former case, amino acids are usually present in high concentrations in cells and are less likely to affect metabolic enzymes than Na +, K +, ecc, which is preferable in adjusting osmotic pressure.

A specific saline ratio is necessary for all creatures. This brings a challenge to the shape of the water - as they absorb too much salt, their cells dehydrate, but if they ingest too much fresh water, It expands. Fish developed several technologies to solve this problem, one of which involves urination. Excess salinity is removed from the blood flow of the deep-sea fish by the kidneys and washed out during urination. Opposite to freshwater fish: There is almost no salt content in urine, and high concentrations of substances are contained in the body.

Increasing salt concentration in freshwater may affect the survival, growth and breeding of countless creatures living there, from insects and crustaceans to fish and aquatic plants. A study on amphibian (especially cricket and frog) pond cultivation found that salinity of the road can reach 172 m from highway to wetland. And reduce the number of laying eggs and the survival rate of eggs and larvae. Larva deformity occurs when approaching salt concentration, the higher the frequency and severity, the closer to salt contamination. On the road, road salt can kill trees, plants, birds, destroy fragile ecosystems, or break complicated food webs.

The most obvious influence of road salt on our environment lies on the roadside lawn, shrubs and leaves. Salinity not only affects the vegetation's vegetation, it also affects aquatic plants and submerged aquatic plants. Salt leaves the road and passes through the spray and spray of the vehicle, the movement of the wind, the melting of the snow into the soil, and the outflow of the surface water into the environment. Salt mainly causes dehydration, which causes leaf damage, but causes osmotic pressure and impairs root growth. Salt destroys the absorption of nutrients and damages seed germination, stems, leaves, and flowering ability. Salt can cause death of plants and may lead to colonization of salt tolerant species such as cats, thereby reducing species diversity. Vegetation along the road is a natural dumping ground between pollutants and water. For additional information, please refer to the following link.