Bottom-up processes control benthic macroinvertebrate communities and food web structure of fishless artificial wetlands

Abstract

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A Preliminary Investigation of Phytoplankton and Zooplankton Diversity in Marine Water Ponds, Thatta, Sindh, Pakistan

“…Apart from nutrients, fluctuation in temperature is responsible to curb primary productivity of water (Simmons et al, 2004). Several studies have been reported on the primary productivity and water quality assessment in fresh and brackish water bodies as well as in fish and shrimp ponds by (Hossain et al, 2007;Sahni and Yadav, 2012;Harney et al, 2013;Akter et al, 2015;Abbas et al, 2015;Abbasi et al, 2016;Durge et al, 2018;Ogbuagu et al, 2019;Akinpelu et al, 2019;Martins et al, 2020;Mermillod-Blondin, 2020;Khokhar et al, 2020). Worldwide, the study of planktonic abundance has been done under the priority in aquaculture ponds to assess the health of water but no prior study was reported on marine water ponds situated at Thatta district, Sindh, except coastal water of Arabian Sea, tidal creeks, lakes and fresh water ponds in Pakistan.…”

Beyond the fish-Daphnia paradigm: testing the potential for pygmy backswimmers (Neoplea striola) to cause trophic cascades in subtropical ponds

“…However, other studies have found that invertebrate predators have weak to nonexistent top-down effects, and the food web effects of many common and widespread invertebrate predators remain unknown ( e.g. , Mermillod-Blondin et al, 2020 ). Characterizing the effects of these understudied predaceous invertebrate species is important for understanding their role in ecosystems and for conservation planning, as predators and freshwater species are at a higher extinction risk than species in lower trophic levels or other habitats ( Purvis et al, 2000 ; Strayer & Dudgeon, 2010 ).…”