This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
籞 combines 竹 (bamboo) with 禦, but the exact historical development and original meaning are uncertain.
The top is bamboo 竹, and the bottom is a complex shape 禦. Without a clear meaning, picture a bamboo fence or barrier, but treat this as a guess.
For ギョ, imagine a bamboo fence around a fish pond: 魚 (ぎょ, fish) -> ギョ, and the bamboo top 竹 hints at the fence.