The Effects of Increased Temperature on Fish Reproduction

Influence of high temperature on fish breeding Today, rivers, ponds, lakes, even the ocean may cause unexpected temperature rise. One of the many factors contributing to this situation is nuclear power plants. Many people may think that nuclear power is the source of many pollutants, but it is not so (1). In fact, nuclear power plants only cause pollutants to nearby waters, the temperature rises. Normally, this temperature rise is about 10 degrees higher than usual (2).

The purpose of this laboratory study is to It was to investigate the influence of rising water temperature on the survival and breeding of magna. This research is based on D.I. It helps to explain the degree of environmental change necessary for the induction of the sex life cycle of magna. (Biological Principle) D. magna is known to be a sensitive environmental indicator species (Baker et al., 2000), because of its similar structural and physiological characteristics to many aquatic species, water temperature rise It is an excellent model to investigate the effect of. . On breeding of various aquatic invertebrates (biology principle)

Temperature has a major impact on the biology of fish and rising water temperature due to climate change endangers many Canadian species. The Miramichi River in New Brunswick is one of the largest wild Atlantic salmon in Canada. Over the past decade, the temperature of the Miramichi River in the summer has exceeded the acceptable limit of Atlantic salmon. These limitations have been evaluated in the laboratory using standardized thermal challenges in which fish are exposed to high temperatures over relatively short periods of time.

Reducing calories: Physiological response of Thai salmon to ecologically related thermal challenge

Fish are very sensitive to the surrounding environment. The body temperature of the fish is controlled by the water temperature. The temperature of the sea is rising year by year. Excessive heat in the water causes biological changes in the fish. Their behavior will change as the temperature of the sea rises. Their breeding behavior, swimming ability and growth will be influenced by the excessive heat of the sea. For reproductive activity, fish needs a certain temperature range at the right time. A slight rise in seawater temperature will have a major impact on the breeding process. In addition to seawater, water temperature is also important to determine fish sex. Therefore, the amount of a particular fish depends greatly on the seawater temperature.

Fish are particularly sensitive to habitat changes. The World Wildlife Federation emphasizes that temperature rise above 2 degrees Celsius is dangerous for fish. Healthy water temperature depends on species. As water absorbs the heat deprived of greenhouse gas (GHG), scientists have linked water temperature rise to global warming. The Intergovernmental Panel on Climate Change (IPCC) stated that an unusually high seawater temperature occurs at a depth of 3,000 meters above sea level. Rising water temperature can interfere with fish oxygen supply and physiological processes related to maturation, digestion and egg production. High temperatures also weaken the tolerance of toxic substances and pathogens invading fish habitats. Scientists evaluated the growth of otoliths (ear bones) and examined how the temperature difference affects the occurrence.