Crimson Publishers Review Article Wings to the Research Fresh/River Water Zooplankton in Bangla- desh: A Critical Review Md. Simul Bhuyan1,2*, Muhammad Sharif AS3, Md. Mohidul Islam4, Mojumder IA2,5, Monika Das6,7 and Md. Shafiqul Islam1 1Institute of Marine Sciences, University of Chittagong, Chittagong, Bangladesh 2Bangladesh Research Consultancy Firm, Dhaka, Bangladesh ISSN: 2578-0336 3Bangladesh Oceanographic Research Institute, Cox’s Bazar, Bangladesh 4Marine Fisheries and Technology Station, Bangladesh Fisheries Research Institute, Cox’s Bazar-4700, Bangladesh 5Department of Zoology, University of Chittagong, Chittagong, Bangladesh 6Department of Fisheries, Matshya Bhaban, Dhaka, Bangladesh 7Department of Fisheries, University of Dhaka, Bangladesh Abstract Bangladesh. This review was carried out based on the secondary data. Data were collected from different This study was conducted in 2020 to find out the total identified fresh/river water zooplankton in *Corresponding author: Md. Simul their image cannot be download from PDF and some of the publications only stated name. In the present Bhuyan, Faculty of Marine Sciences and published journals and websites. Images of every species were collected from different websites since Fisheries, Bangladesh foodstudy, chain a total and of food260 zooplanktonweb. There is species very limited were recorded research inon fresh/river freshwater water. zooplankton Few species in Bangladesh. were identified Most Submission: March 04, 2020 in the larvae and egg stage. Zooplankton is an important part of the aquatic ecosystem that formulate the Published: September 11, 2020 that it is very necessary to identify the freshwater zooplankton in species-level with a very clear image. Thisof the will study be aidentified great resource up to the for Order the conservation level and unpublished. of the river Theor freshwater findings of ecosystem. the present study suggested Volume 7 - Issue 2 Keywords: How to cite this article: Md. Simul Freshwater; Zooplankton; Identification; Ecosystem; Bangladesh Introduction River Water Zooplankton in Bangladesh: Bhuyan, Muhammad Sharif AS, et al. Fresh/ Zooplankton is microscopic organisms that drift in water due to the wave action of water. DOI:A Critical Review. Environ Anal Eco stud. Zooplankton is mainly visible in the pelagic zone of ponds, lakes, rivers, and oceans where 7(2). EAES. 000658. 2020. 10.31031/EAES.2020.07.000658 Copyright@ Md. Simul Bhuyan, This - article is distributed under the terms of light enters. They have no strong swimming organ-like fin in fish [1]. That’s why they are plankton act as a base of food chains and food webs in freshwater ecosystems since they are the unable to swim freely like fish and they have relied on the wave or current to swim [2]. Zoo International License, which permits unrestrictedCreative Commonsuse and Attributionredistribution 4.0 provided that the original author and solely liable for all secondary production [1]. Moreover, some of them are known as indicators source are credited. of ecological variations [3]. Zooplankton is now subjected to the effect of the global climate change phenomenon and its long-term and wide profound effect [4]. - Directly or indirectly omnivorous and carnivorous fishes rely on zooplankton for their food [5]. Zooplankton excretes organic matters and provides large quantities of protein in wa ter. These nutrients are required for the development of different organs of fish that promote rapid growth [6]. Zooplankton regarded as the ideal food source for brood fishes. Carps fish food item of Xenentodon cancila and while Cirrhina reba’s feed mainly constitutes of zooplank- larvae and white fish (Mullet) larvae mostly feed on zooplankton [7]. Zooplankton is the main Anabas testudineus Notoptrus notoptrus Macrobrachium rosenbergii Catla catla Labeo rohita ton [8]. About 82% of the food item of [9], 32% of [10], 23% of , 47% of [11], 6.37% of [11], Environmental Analysis & Ecology Studies 716 EAES.000658. 7(2).2020 717 Oreochromis nilotica Rohtee cotio plankton in beel of Bangladesh” etc. Few images were not found Mystus vittatus 24.19% of [12], 38.5% of the [13] authors another publication that’s why there are no references in and 30% of [14]. for some species. 259-260 no. species images were taken from the image link sources. to forecast the effect of environmental changes if taxonomic infor- Identification of zooplankton is crucial since it is very difficult Fresh/river water zooplankton status in Bangladesh mation is unknown [15-18]. The taxonomic along with diversity status information will help scientific programmers’ to design a by regulating the nutrient cycle and transportation of nutrients in - Zooplankton plays a significant role in aquatic ecosystems [22] new program [19-20]. Furthermore, zooplankton plays a significant role to develop the fisheries sector and increase the production lev and nutrient status of water control zooplankton biomass. Substan- seasonal variation of zooplankton composition is also a strong tool lakes, rivers, estuary, and seas [23-26]. Physico-chemical factors el by determining the water quality and natural productivity. The in this regard. - tial research carried out in temperate and polar waters [27]. George The effect of physico-chemical parameters of water in the spe- [28], Krishnamurthy & Visvesvara [29], Sreenivasan [30] and Mi cies composition, abundance, and diversity of zooplankton deter- chael [31] conducted research on the ecology and zooplankton of - India. Very few works done in Bangladesh by Das & Bhuiyan [32], is available on the seasonal variation of zooplankton and their rela- mine the fish distribution [21]. Unfortunately, limited information Islam & Mendes [33], Khan et al. [34], Ali et al. [35], Zafar [36], Pa tionship with the physico-chemical factors of water. Therefore, the the present study, a total of 260 zooplankton species were recorded tra & Azadi [37], Bhuiyan et al. [38], Bhuiyan & Nessa [8,39-42]. In from freshwater or river water of Bangladesh. These species listed in Table 1 along with the image. zooplankton study is essential to know the dynamic of the fishery. Consequently, the present review study was conducted to know the far. Limitation total freshwater zooplankton species identified in Bangladesh so Some studies were found that worked up to a group or order Materials and Methods level. The authors worked on the species level zooplankton species search, using the keywords “Zooplankton in Bangladesh” or “Zoo- species and some added but could not be used either for copyright Authors collected data from different databases or google [43-48]. Most of the articles did not add images of the identified plankton in freshwater of Bangladesh” or “Zooplankton in river of Bangladesh” or “Taxonomic study of zooplankton in Bangladesh” or images from different websites citing the image link. Some species or for the quality of the image. Rather, authors used google search “Taxonomic checklist of zooplankton in Bangladesh” or “Distribu- spelling was not found in google search; the author corrected the tion of zooplankton in river of Bangladesh” or “Zooplankton diver- sity in river in Bangladesh” or “Heavy metals in edible seaweed” or University students and Professors, but the authors used only pub- spelling [49-56]. There are some work may be done by different “Trace metals in seaweed” or “Distribution of zooplankton in fresh- lished articles. Finally, this review study did not get any funding to water of Bangladesh” or “Zooplankton diversity in freshwater in Bangladesh”, “Zooplankton in pond water of Bangladesh” or “Zoo- conduct this research [57-61]. Sl. No. Scientific Name Taxonomic tree Image References Phylum: Rotifera Class: Monogononta Order: Ploima Brachionus angu- 01. Family: Brachionidae [21,40-42] laris Genus: Brachionus Species: Brachionus angularis Phylum: Rotifera Class: Monogononta Order: Ploima 02. Filinia sp. [40,42-47] Family: Testudinellidae Genus: Filinia Species: Filinia sp. Phylum: Rotifera Class: Eurotatoria Order: Ploima 03. Lepadella cristata [40] Family: Lepadellidae Genus: Lepadella Species: Lepadella cristata Environ Anal Eco stud Copyright © Md. Simul Bhuyan EAES.000658. 7(2).2020 718 Phylum: Rotifera Class: Monogononta Order: Ploima 04. Testudinella sp. [40,48] Family: Testudinellidae Genus: Testudinella Species: Testudinella sp. Phylum: Arthropoda [1,21,40, 41,43,45, Class: Branchiopoda 49-51] Order: Cladocera 05. Bosmina sp. Family: Bosminidae Genus: Bosmina Species: Bosmina sp. Phylum: Arthropoda Class: Branchiopoda Order: Cladocera 06. Daphnia pulex [40] Family: Daphniidae Genus: Daphnia Species: Daphnia pulex Phylum: Arthropoda Class: Branchiopoda [40,42,44-50] Order: Cladocera Diaphanosoma 07. Family: Sididae sp. Genus: Diaphanosoma Species: Diaphanosoma sp. Phylum: Rotifera Class: Eurotatoria Order: Ploima [40,42,44, 08. Asplanchna sp. Family: Asplanchnidae 45,47,52-53] Genus: Asplanchna Species: Asplanchna sp. Phylum: Protozoa Super class: Lobosa Astramoeba ra- Class: Amoebaea 09. [54] diosa Family: Thecamoebidae Genus: Astramoeba Species: Astramoeba radiosa Phylum: Ciliophora Class: Oligohymenophorea Order: Peniculida Paramecium 10. Family: Paramecidae [54] trichium Genus: Paramecium Species: Paramecium trichium Phylum: Ciliophora Class: Litostomatea Branchioecetes Order: Haptorida 11. [54] sp. Family: Tracheliidae Genus: Branchioecetes Species: Branchioecetes sp. Phylum: Ciliophora Class: Suctoria Order: Chonotrichida 12. Epistylis plicatilis [54] Family: Epistylidae Genus: