Module 4: Sampling Underwater

The most common method for sampling syngnathids is underwater visual census (UVC) surveys, using scuba diving or snorkeling. Visual surveys allow researchers to observe animals in their natural environment, providing valuable information on abundance, distribution, life history and ecology.

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Banner image of long-snouted seahorse (H. guttulatus) © Claudia Gravenstein / Guylian SOTW
Image of sampling underwater © Virgilio Rodrigues

[Page updated 27 Nov 2025]