Here is the full list of all 46 Just Fishing achievements.
The player caught 100 fish using a worm
The player accumulated 42000 experience points
The player caught two fish of the same weight in a row
The player caught at least 1 fish in each hour during the game day
The player has caught 20 species of fish using float tackle
The player has caught 5 species of fish using lures
Player visited 5 locales
The player has caught 100 fish
The player caught Tench during the first game hour after midnight
The player caught 10 species of fish using float tackle
The player has caught 10 fish
The player has caught 1000 fish
The player has caught 15 species of fish using lures
The player has caught 40 species of fish using lures
The player has caught 50 species of fish using float tackle
The player made the baitfish out of every possible type of fish
Player has accumulated 100 000 silver coins
The player has caught more than 100 units of fish using heavy tackle within one game-day (12:00 am - 11:59 pm)
The player has caught the most fish using leech
The player released 1000 fish
The player caught three species of carp weighing more than 20 kg each
The player has caught 4 species of trout
The player caught 5 fish species weighing more than 50 kg each
The player caught all species of fish, having 'Siberian' in their name
The player caught an Ide weighing more than 7.5 kg
The player caught 1000 fish using worms
The player spent 100 000 silver coins
The player has caught every possible species of fish using Bread as bait
Player has caught all possible fish species using Cheese
Player has caught all possible fish species using Oatmeal.
Player caught all possible fish species using Peas
Player has caught all possible fish species using Corn
The player has caught crayfish on crayfish meat
The player caught an eel weighing over 8.2 kg
The player caught a Manchurian Trout weighing more than 8 kg
The player caught Silver Salmon weighing more than 14 kg
The player caught Pink salmon weighing more than 5.5 kg
The player has won 7 duels in a row
The player caught a fish weighing more than 20 kg using nightcrawlers
The player snagged 100 clams
The player visited 15 locales
The player has visited all possible locales at every water body
The player won 100 duels
The player caught at least 25 fish species using twister
The player opened all possible types of chests
The player participated in the tournament and took first place