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This is a spreadsheet that is supplementary to the main Data Spreadsheet for Animal Crossing (N64, GCN).

Notes:
-For fish or time slots that are not present in the Lake, Waterfall, or River Mouth tabs, the data is exactly the same as the River tab

-Fish do not spawn in Holding Ponds from September 16 to March 26

-While fish are scheduled to appear on the first day of a given month, they can actually begin appearing up to five days before then. The chances of their appearance rise each day until the new month. Percentages on this sheet do not account for these monthly 5-day transitional periods

-In AC, Animal Island is equivalent to Ocean spawn rates during July 1 - August 15.

-No fish or insect can spawn in the 2 tiles at each acre's border

-Fish spawn locations:
River - Any river water
Lake - The large lake in the middle of one of the town rivers. Sometimes called "The Pond"
Waterfall - The river water at the base of the waterfall
River Mouth - The river water directly next to the ocean
Holding Ponds - The small ponds peppered around the town
Bridge - A river acre containing a bridge (only applies to the fishing tourney)
Ocean - The water beyond the beach
Animal Island - The ocean water at Animal Island

-An insect that spawns on or around trees will only spawn from fully grown trees. Coconut trees will not work unless specified. If it is a fruit tree, then the fruit must remain on the tree to allow spawns.
-Insects that spawn on the ground or from flying must have a valid empty spot without objects or items in order to spawn.
-Dung Beetles spawn only if a ball is present. Snowballs are also balls. Balls cannot spawn in acres with the player's houses, tom nook's shop, the train station, the lake, or the museum.
-Diving Beetles cannot spawn at Waterfall or Bridge acres.
-Fleas can only spawn on villagers that have been spoken to at least once, that are either male or female with personality type peppy, and are not one the following species:
* Elephant
* Duck
* Hippo
* Frog
* Alligator
* Anteater
* Octopus
* Rhino
* Penguin