Fish get oxygen under ice by using their gills to extract dissolved oxygen from the water. Photosynthesis under the ice adds more oxygen. Aerators can help maintain oxygen levels. During winter, fish reduce their metabolism to survive when oxygen is low. Turtles and frogs also use the available oxygen in the water. During winter, photosynthesis … Read more

Fish in a frozen lake get oxygen from the water. Ice limits the exchange of oxygen, but deeper areas have more dissolved oxygen. Fish can survive the cold by slowing their metabolism. Aquatic plants also perform photosynthesis under the ice, which produces oxygen and supports life during winter. Oxygen from the atmosphere dissolves into the … Read more

Fish get into lakes and ponds in several ways. They swim from nearby rivers or ride river currents. Waterbirds can also transport fish eggs. Humans may place fish into these water bodies. Additionally, fish can endure dry spells and return when water levels rise, helping to maintain ecological balance. In addition to natural pathways, human … Read more

Fish get into lakes in several ways. They swim from rivers, move with water currents, or have their eggs carried by birds. Humans also help by stocking lakes via planes or trucks. Natural events, like stream capture, allow fish to move between different water bodies. These methods ensure a rich fish population in lakes. Another … Read more

Fish get into rivers mainly through migration. They swim upstream or ride currents from lakes and oceans. Fish eggs can be transported by waterbirds. Human activities, such as stocking streams, also introduce fish into new habitats. Environmental factors and changes in habitats affect their movement as well. Survival in these ecosystems depends on various factors. … Read more

Fish can enter previously fishless lakes in three ways. First, they might have existed there but were hidden. Second, fish migrate through natural waterways during high water flow. Lastly, humans introduce fish by stocking or aerial release, aiming to improve habitat connectivity and support fish populations in these areas. Another pathway involves natural flooding events. … Read more

Fish get into mountain streams mainly through human stocking, often with trout. Birds also contribute by carrying fish eggs. Additionally, tectonic uplift changes the landscape, creating pathways for water flow to higher areas. Stream fish may migrate to find better winter habitats. Another method involves the transportation of fish by birds. Certain birds, like herons, … Read more

Fish typically enter mountain lakes through human stocking. People often release trout using aerial methods. Water birds can also carry fish eggs on their feathers, introducing them to these isolated ecosystems. Natural colonization of fish is uncommon due to physical barriers that limit access to these lakes. Human intervention plays another role. People sometimes introduce … Read more

Fish get into man-made lakes through several methods. Fish in nearby streams and rivers can be transported downstream. Birds may carry fish eggs on their feathers, allowing them to hatch in lakes. Also, fish are often intentionally stocked using transportation methods like trucks that deliver them directly into the lakes. The ecological impact of fish … Read more

Fish get into lakes through several ways. They swim from rivers linked by channels. Birds can carry fish eggs that survive outside water. Additionally, hatcheries can release fish using planes. Streams might form new lakes, helping fish migrate during droughts by linking different water sources. Flooding plays a critical role in this journey. Heavy rains … Read more