BG 10.31

पवनः पवतामस्मि रामः शस्त्रभृतामहम् ।
झषाणां मकरश्चास्मि स्रोतसामस्मि जाह्नवी ॥३१॥

pavanaḥ pavatām asmi
rāmaḥ śastra-bhṛtām aham
jhaṣāṇāṁ makaraś cāsmi
srotasām asmi jāhnavī

pavanaḥ - the wind; pavatām - of all that purifies; asmi - I am; rāmaḥ - Rāma; śastra-bhṛtām - of the carriers of weapons; aham - I am; jhaṣāṇām - of all fish; makaraḥ - the shark; ca - also; asmi - I am; srotasām - of flowing rivers; asmi - I am; jāhnavī - the River Ganges.

Text

Of puriﬁers I am the wind, of the wielders of weapons I am Rāma, of ﬁshes I am the shark, and of ﬂowing rivers I am the Ganges.

Purport

Of all the aquatics the shark is one of the biggest and is certainly the most dangerous to man. Thus the shark represents Kṛṣṇa.

Bhagavad Gita As It Is.

Chapter 10: The Opulence of the Absolute. Text 31

Of puriﬁers I am the wind, of the wielders of weapons I am Rāma, of ﬁshes I am the shark, and of ﬂowing rivers I am the Ganges.