Zooplankton community attributes in an oligo-mesotrophic reservoir: A comparative study of two sampling strategies

Abstract

How to cite: MACÊDO Rl, lOPeS Vg, KOZlOWSKY-SUZUKI B AND BRANCO CWC. 2019. Zooplankton community attributes in an oligo-mesotrophic reservoir: A comparative study of two sampling strategies. An Acad Bras Cienc 91: e20170807.

First report of the invasive Ceratium furcoides (dinoflagellate) in Paracambi Reservoir, Rio de Janeiro: Risks to the world's largest domestic water treatment plant

“…furcoides , however, Corrêa et al (Unpublished data), the FS strategy could exhibit a higher detection efficiency, capturing the presence of Ceratium cells even though they were absent in superficial samples. Accordingly, it was assumed the choice of the sampling strategy may prove to be an important paradigm because detection problems regarding sampling strategies does occur for oligotrophic reservoirs with higher euphotic zones (Macêdo et al, 2018), especially for vertical migrating organisms such as C . furcoides (Cavalcante et al, 2016).…”

“…Further the greater total body size may also be associated with more drastic fish-kill episodes by the clogging of their gills and/or with trophic disruptions attributable to limiting zooplankton grazing (Amorim & Moura, 2021;Pacheco et al, 2021). detection problems regarding sampling strategies does occur for oligotrophic reservoirs with higher euphotic zones (Macêdo et al, 2018), especially for vertical migrating organisms such as C. furcoides (Cavalcante et al, 2016). Thus, the choice of a sampling strategy may be more or less effective, depending, for example on whether the sampling objective was detection, quantification.…”

Effects of formaldehyde preservation time on the length-weight relationship of the ubiquitous neotropical cladoceran Ceriodaphnia silvestrii

“…Bosmina hagmani <0.5mm) and medium-sized cladocerans (e.g. C. silvestrii 0.5-1.0mm) (Macêdo et al, 2019). C. silvestrii was selected for three major reasons: i) mediumsized zooplankton species are generally more representative in terms of biomass than smaller ones (e.g.…”

“…C. silvestrii was selected for three major reasons: i) mediumsized zooplankton species are generally more representative in terms of biomass than smaller ones (e.g. Hanazato, 1998), ii) being Ceriodaphnia a widely spread genus in Brazil (Elmoor-Loureiro, 2000), and iii) C. silvestrii is among the most abundant species in RLA (Macêdo et al, 2019).…”