How do sea robins reproduce in the open sea?

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Stonefish (Synanceia verrucosa). — scorpaeniform Stonefish (*Synanceia verrucosa*).

Sea robins do not exhibit specialized breeding behaviors in the open sea. Instead, they reproduce by simply shedding their eggs in batches directly into the water. The only notable change in their behavior during the spawning season is that these fish become increasingly loquacious, or noisy.1