Most lake fish prefer pH levels between 6.5 and 8.5. Extreme values can be lethal. Alkalinity above 9.5 and acidity below 4.5 are harmful to fish. Different species have varying tolerances, but these limits typically signal conditions that can harm or kill lake fish populations. Water quality is another crucial factor in the survival of … Read more

Most freshwater tropical fish prefer a pH level between 6.8 and 7.8. A pH of 7.0 is neutral. Different fish species may have specific preferences. Keeping the pH within the optimal range is vital for their well-being and water quality, as it directly impacts their health and behavior. Maintaining optimal pH levels is vital for … Read more

Specialized pet stores sell sturgeon fish, such as the Sterlet (Acipenser ruthenus). Local aquarium shops may have them in stock, but this varies by location. Some stores offer examples for dedicated fish enthusiasts. Always check local regulations, as certain sturgeon species are endangered and require special care. Before buying sturgeon fish, consider the species that … Read more

To fish on Lake Erie, you need an Ohio fishing license. Licenses are valid from March 1 to February 29. Youths under 16 are exempt from needing a license. Always check current fishing regulations for updates. Staying informed ensures a successful and legal fishing experience. For walleye and perch fishing, certain regulations are in place, … Read more

About 90% of large predatory fishes in the ocean have vanished since the 1950s. This significant loss results from high fishing pressure and overexploitation. The disappearance disrupts marine ecosystems, changes food webs, and lowers biodiversity, negatively impacting the overall health of the ocean. The consequences of diminishing predatory fish extend beyond ecological imbalance. They affect … Read more

When stocking fish in a lake, survival rates depend on various factors. For example, trout may have an 80-95% mortality rate. Key factors include habitat quality, environmental conditions, and competition with existing fish species. Effective fish stocking and management can improve the overall survival of fish in water bodies. In optimal conditions, such as a … Read more

Over 50% of all fish species live in freshwater, totaling over 18,000 species. These freshwater fish are vital for aquatic life, making up about one-fourth of all vertebrate species. Their presence enhances fish diversity and supports various habitats, highlighting their importance in ecosystems worldwide. However, freshwater fish populations face numerous threats. Habitat destruction, pollution, and … Read more

Approximately 1% of fish eggs reach adulthood. This low survival rate results from predation and environmental factors. Fish eggs are an important food source for many species, including fish, birds, and insects. The young fish, called alevins, rely on their yolk sac for initial nourishment during this vulnerable stage. During this fry stage, survival is … Read more

Coral reefs are home to many fish species. Notable examples include Clown Triggerfish, Orange-green Triggerfish, Black Triggerfish, Falco Hawkfish, Longnosed Hawkfish, Copper-band Butterflyfish, Saddleback Butterflyfish, and Queen Angelfish. These fish support reef health and add vibrant diversity to this ecosystem. The presence of coral reef fish is critical for maintaining biodiversity. They are integral to … Read more

In fish farms, egg mortality is high. About 90% of eggs or alevin die, and 95% of fry do not survive. For instance, rainbow smelt have only a 24% survival rate. In contrast, untreated African catfish eggs reach around 28% survival. These figures highlight the challenges of fish farming practices and their environmental impact. Positive … Read more