झषाणां मकरश्चास्मि स्रोतसामस्मि जाह्नवी ॥ ३१ ॥
rāmaḥ śastra-bhṛtām aham
jhaṣāṇāṁ makaraś cāsmi
srotasām asmi jāhnavī
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.
Of all the aquatics the shark is one of the biggest and is certainly the most dangerous to man. Thus the shark represents Kṛṣṇa.