Mycosporine-Like Amino Acids (MAAs) in Zooplankton.

摘要: Organisms have different adaptations to avoid damage from ultraviolet radiation and one such adaptation is the accumulation of mycosporine-like amino acids (MAAs). These compounds are common in aquatic taxa but a comprehensive review lacking on their distribution function zooplankton. This paper shows that zooplankton MAA concentrations range non-detectable ~13 µg mgDW-1. Copepods, rotifers, krill display large concentrations, whereas cladocerans generally do not contain MAAs. The proposed mechanisms gain MAAs via ingestion MAA-rich food or symbiotic bacteria providing with Exposure UV-radiation increases both increasing phytoplankton due active accumulation. Concentrations low during winter higher summer females seem deposit eggs. tend increase altitude only up certain suggesting some limitation for uptake. Shallow UV-transparent systems copepods this has been shown few species. A high concentration also lead lower UV-induced mortality an overall increased fitness. While there lot information we still lack understanding potential costs constraints There scarce as rotifers well tropical, sub(polar) areas marine general.