Diel variation in sea grass dwelling shrimp: when to sample at night?
de Grave, S.; Livingstone, D.R.; Speight, M.R. (2006). Diel variation in sea grass dwelling shrimp: when to sample at night? J. Mar. Biol. Ass. U.K. 86(6): 1421-1422. dx.doi.org/10.1017/S0025315406014457
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769, meer
The present study investigates hourly variation in nocturnal abundance fluctuations in a tropical, Caribbean sea grass bed. As expected, results indicate that significant diel variation is present. In addition all dominant species show an abundance peak shortly after sunset, with numbers gradually declining throughout the night. It is therefore suggested that nocturnal samples are not only incorporated into any sampling regime, but that nocturnal samples are taken within two hours after sunset.
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