Here's why:
* Short vowels are typically followed by a single consonant. In "shrimp," the vowel "i" is followed by a consonant blend "mp."
* Long vowels can be followed by consonant blends or digraphs (two letters that make one sound). The "i" in "shrimp" has a long "i" sound, which is typical of long vowel sounds.
Therefore, "shrimp" is a long vowel word.