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8+ 海 水温 北海道 釣り Article

気象庁 海水温・海流の知識 日本近海の深さ100mの水温図(見本)
気象庁 海水温・海流の知識 日本近海の深さ100mの水温図(見本) from www.data.jma.go.jp

The Importance of Sea Temperature in Fishing

If you’re an avid fisherman, you know that understanding the sea temperature is crucial for a successful catch. The temperature affects fish behavior, including their feeding patterns, migration, and spawning. In Hokkaido, the northernmost island of Japan, the sea temperature varies depending on the season, location, and time of day.

Seasonal Changes in Sea Temperature

In Hokkaido, the sea temperature is coldest in the winter months, with an average temperature of 0°C to 5°C. During spring, the temperature gradually increases to 5°C to 10°C, and by summer, it reaches 10°C to 20°C. In autumn, the temperature starts to drop again, ranging from 5°C to 15°C.

Summer Fishing

During the summer months, Hokkaido is a popular destination for fishing enthusiasts. The warmer sea temperature attracts various fish species, such as salmon, trout, and mackerel. To catch these fish, it’s essential to understand their feeding patterns and preferred bait, which can vary depending on the sea temperature.

Winter Fishing

Winter fishing in Hokkaido can be challenging due to the freezing sea temperature. However, some fish species, such as cod and flounder, are more active during this time. To catch these fish, you’ll need to use specialized equipment and bait that can withstand the cold water.

Location Matters

The sea temperature in Hokkaido can also vary depending on the location. For example, the sea temperature in the Sea of Okhotsk is colder than the Pacific Ocean due to its northern location. Understanding the sea temperature in your preferred fishing spot can increase your chances of catching fish.

Time of Day

The sea temperature can also change depending on the time of day. In the morning, the sea temperature tends to be colder, while in the afternoon, it can be warmer. This can affect fish behavior, as some species may be more active during certain times of the day.

Conclusion

Understanding sea temperature is crucial for successful fishing in Hokkaido. By knowing the seasonal changes, location, and time of day, you can increase your chances of catching various fish species. Whether you’re fishing in the summer or winter, having knowledge of sea temperature can make your fishing trip a success.

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