Fish Behavior

Rainbow trout are among the fish species least tolerant of water pollution. They need clean, cold water with high oxygen levels. Their sensitivity to pollutants like heavy metals and changes in temperature makes them important indicators of water quality. Protecting their habitats helps ensure healthy aquatic environments. The presence of least tolerant fish species often … Read more

The Dorado catfish has the longest migration route among freshwater fish. It travels about 11,600 kilometers (7,200 miles) during its migration. This journey shows the fish’s remarkable ability to adapt and survive. Researchers from International Rivers provide valuable insights into this impressive migration. Other fish, like the European eel, also have extensive migrations. They travel … Read more

Pectoral fins help fish maintain balance. They assist in swimming and enable turning. These fins vary by fish species, adapting to different environments. By providing stabilization, pectoral fins play a crucial role in maneuverability and overall swimming efficiency. Pelvic fins, positioned on the lower sides of the fish, play a vital role in balance and … Read more

The pectoral fin serves as a brake for fish. It allows quick side-to-side movements and controls swimming speed. By changing direction and angles, pectoral fins effectively reduce momentum. These fins are vital for maneuverability and slowing down in fish anatomy. Examples include various fish species that rely on their pectoral fins for braking. Additionally, the … Read more

The pectoral fin helps fish change direction. It allows quick side-to-side motion, enhancing speed control. This fin also acts as a brake, enabling fish to slow down while swimming. By adjusting their pectoral fins, fish can maneuver effectively in their surroundings. Pelvic fins, located further back on the fish’s belly, also play a role in … Read more

Canada’s fishing industry thrives in three main regions: the Atlantic region, famous for its rich marine life; the Pacific region, noted for salmon and shellfish; and the Inland region, which includes the Great Lakes and Hudson’s Bay. These areas support diverse ecosystems and contribute significantly to local economies. Recent trends indicate a shift towards sustainable … Read more

Fish consumption advisories offer safety guidelines for eating fish caught in certain areas. Advisories apply to Bear River (Nevada, Placer, Sutter, Yuba), Big Bear Lake (San Bernardino), Bishop Creek (Inyo), and Black Butte Lake (Glenn, Tehama). For more details, check OEHHA’s safety guidelines. By navigating these maps, individuals can easily identify safe fish types to … Read more

By 2050, plastic is expected to outnumber fish in the oceans. Current statistics reveal that about 40 percent of ocean surfaces have swirling plastic debris, totaling billions of pounds. This alarming trend underscores the serious environmental impact of ocean pollution. In addition, microplastics have infiltrated even the most remote ocean environments. These tiny particles can … Read more

Stop feeding outdoor pond fish when water temperatures reach 50°F or lower. Fish metabolism slows at 55°F, reducing their feeding behavior. If temperatures are expected to drop below 50°F soon, it’s best to stop feeding. Begin feeding again in spring when temperatures consistently rise above 50°F. During winter, pond fish enter a state of semi-hibernation. … Read more

Feed fish wheat germ when the water temperature is between 40 and 50 degrees Fahrenheit in spring and fall. Use nutrient-dense fish food options like The Pond Guy Growth & Vibrance Fish Food when the temperature stays above 50 degrees Fahrenheit. This approach keeps your fish healthy during changing seasons. Feed fish wheat germ primarily … Read more