This Datapack which makes fishing more fun and rewarding makes the following loot table

all new items will be selected as ( New )

Junk: 20%

Bone: 6.58%

Bone Meal: 6.58% ( New )

Bowl: 6.58%

Brick: 6.58% ( New )

Brush: 6.58% ( New )

Fishing Rod: 1.97%

Gold Nugget: 2.63% ( New )

Ink Sac: 0.66%

Leather: 6.58%

Leather Boots: 6.58%

Leather Pants: 5.92% ( New )

Leather Tunic: 5.26% ( New )

Leather Cap: 6.58% ( New )

Lily Pad: 6.58%

Poisonous Potato: 3.29% ( New )

Rotten Flesh: 6.58%

Stick: 6.58%

String: 6.58%

Tripwire Hook: 4.61%

Water Bottle: 3.29%

Biome Dependent

Amethyst Shard ( only in Dripstone Caves ): 2.6% ( New )

Bamboo ( only in Jungles ): 5.99%

Chorus Fruit ( only in The End ): 16.03% ( New )

Experience Bottle ( only in the Deep Dark ): 5.35% ( New )

Glow Berries ( only in Lush Caves ): 14.49% ( New )

Ice ( only in biomes where ice is common ): 2.91% ( New )

Kelp ( only in Oceans ): 6.17% ( New )

Melon Slice ( only in Jungles ): 2.99% ( New )

Pointed Dripstone ( only in Dripstone Caves ): 5.21% ( New )

Raw Copper ( only in Caves ): 7.25% lush , 7.81% drip , 8.02% deep dark ( New )

Raw Iron ( only in Caves ): 4.83% lush , 5.21% drip , 5.35% deep dark ( New )

Slimeball ( only in swamps ): 18.72% ( New )

Snowball ( only in snowy biomes ): 8.72% ( New )

Sweet Berries ( only in taigas ): 8.98% ( New )

Fish: 70%

cods and salmons now have the same chance to get made tropical fish way more common in tropical areas and also in normal areas

Full Chances:

Cod: 40%, Salmon: 40%, Pufferfish: 12%, Tropical Fish: 8%

Treasure: 10%

Encahnted Book: 14.17%

Enchanted Bow: 11.81%

Enchanted Fishing Rod: 11.81%

Enchanted Golden Apple: 0.84% ( New )

Golden Apple: 2.95% ( New )

Music Discs ( Far, Mall, Mellohi ): 5.9% ( New )

Name Tag: 11.81%

Nautilus Shell: 17.71%

Prize Pottery Sherd: 4.13% ( New )

Saddle: 8.85%

Tide Armor Trim: 4.13% ( New )

Biome Dependent

Elytra ( only in End Highlands ): 0.24% ( New )