Biochemical composition of zooplankton community grown in freshwater earthen ponds: Nutritional implication in nursery rearing of fish larvae and early juveniles

Aquaculture ◽  
2007 ◽  
Vol 272 (1-4) ◽  
pp. 346-360 ◽  
Author(s):  
Gopa Mitra ◽  
P.K. Mukhopadhyay ◽  
S. Ayyappan
Keyword(s):  
Biochemical Composition ◽  
Fish Larvae ◽  
Zooplankton Community ◽  
Earthen Ponds

scholarly journals Dynamics of Plankton Community in Banahao-Palhi River in Leyte, Philippines

2016 ◽  
pp. 130-152
Author(s):  
Marita Galinato ◽  
Julissah Evangelio
Keyword(s):  
Fish Larvae ◽  
Zooplankton Community ◽  
Dry Season ◽  
Ecosystem Change ◽  
Food Chains ◽  
Wet Season ◽  
Principal Role ◽  
Aquatic Food ◽  
Common Genus ◽  
Pelagic Algae

Plankton consists of microscopic plants “phytoplankton” and animals “zooplankton“. They play a principal role in aquatic food web and zooplankton indicators of ecosystem change. Phytoplankton are the food source for zooplankton, and together, form the base of ocean and river food chains. In Leyte, few researches have been conducted in plankton specifically in river systems. The study was conducted to understand phytoplankton dynamics by first studying their occurrence, composition, and abundance. Three sampling sites were established along Banahao-Palhi river during dry and wet seasons. A total of 162 plankter samples were analyzed in the laboratory. Dry season sampling showed 99 pelagic algae belonging to 58 genera across sites. In all sites, the commonly occurring diatoms were Biddulphia, Meridion, and Synedra . For the green algae (Chlorophyceae) group, Groenbladia was the most common genus, while in the blue-greens (Cyanophyceae), Nostoc. In wet season, 165 pelagics in 68 genera were observed. Bacillariophyceae got the most number of pelagic algae in all sites for both seasons. For true zooplankton, eight families were recorded during the dry season with four, belonging to Rotifera, two under Copepoda and one, from Cladocera. Similar groups were found during wet season. Larvae of insects and benthics were found part of the zooplankton community. Insect groups include Orders Coleoptera, Diptera, Ephemeroptera, Megaloptera, Plecoptera and Trichoptera. Non-insect groups include Arachnida, Amphipoda, Gastropoda and fish larvae. The Rotifera is the commonly occurring holoplankton with six genera identified. However, the copepods were the most abundant in Brgy. Palhi while protozoans, in Brgy. Banahao.

scholarly journals eDNA metabarcoding of small plankton samples to detect fish larvae and their preys from Atlantic and Pacific waters

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Eva Garcia-Vazquez ◽  
Oriane Georges ◽  
Sara Fernandez ◽  
Alba Ardura
Keyword(s):  
High Throughput Sequencing ◽  
Fish Larvae ◽  
Early Stage ◽  
Zooplankton Community ◽  
Coi Gene ◽  
Fish Diet ◽  
Commercial Fish ◽  
Tropical Waters ◽  
Small Water ◽  
Sampling Protocols

AbstractZooplankton community inventories are the basis of fisheries management for containing fish larvae and their preys; however, the visual identification of early-stage larvae (the “missing biomass”) is difficult and laborious. Here, eDNA metabarcoding was employed to detect zooplankton species of interest for fisheries from open and coastal waters. High-Throughput sequencing (HTS) from environmental samples using small water volumes has been proposed to detect species of interest whose DNA is the most abundant. We analyzed 6-L water samples taken from subtropical and tropical waters using Cytochrome oxidase I (COI) gene as metabarcode. In the open ocean, several commercial fish larvae and invertebrate species important in fish diet were found from metabarcodes and confirmed from individual barcoding. Comparing Atlantic, Mediterranean, Red Sea, and Pacific samples we found a lower taxonomic depth of OTU assignments in samples from tropical waters than in those from temperate ones, suggesting large gaps in reference databases for those areas; thus a higher effort of zooplankton barcoding in tropical oceans is highly recommended. This and similar simplified sampling protocols could be applied in early detection of species important for fisheries.

Opportunistic Cyclopoid Prédation on Fish Larvae

1984 ◽  
Vol 41 (3) ◽  
pp. 526-532 ◽  
Author(s):  
John H. Hartig ◽  
David J. Jude
Keyword(s):  
Yellow Perch ◽  
Larval Fish ◽  
Fish Larvae ◽  
Zooplankton Community ◽  
Fish Mortality ◽  
Coastal Lake ◽  
Zooplankton Community Structure ◽  
Diacyclops Thomasi ◽  
Low Probability ◽  
Newly Hatched Larvae

Exceptional spring spawning of yellow perch (Perca flavescens) in an inland coastal lake resulted in very high larval fish densities (up to 41 900/1000 m3) and facultative predation by adult female Diacyclops thomasi on newly hatched larvae (maximum predation density: 8740/1000 m3), as evidenced by cyclopoid attachment to fish larvae in field collections. This predation suggests that larval fish mortality and possibly cyclopoid population growth are affected. Opportunistic cyclopoid predation on fish larvae may also alter zooplankton community structure by changing the feeding pattern of cyclopoids. Lack of significant predation on other species of fish larvae is probably due to temporal and spatial asynchrony of predator and prey, low probability of encounter, robust nature of certain fish species, and effective swimming and escape ability.

scholarly journals Diel vertical migration and spatial overlap between fish larvae and zooplankton in two tropical lakes, Brazil

2015 ◽  
Vol 75 (2) ◽  
pp. 352-361 ◽  
Author(s):  
PHS. Picapedra ◽  
FA. Lansac-Tôha ◽  
A. Bialetzki
Keyword(s):  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Fish Larvae ◽  
Zooplankton Community ◽  
Tropical Lakes ◽  
Mato Grosso ◽  
Potential Predator ◽  
Spatial Overlap ◽  
Wide Range ◽  
Mato Grosso Do Sul

The effect of fish larvae on the diel vertical migration of the zooplankton community was investigated in two tropical lakes, Finado Raimundo and Pintado lakes, Mato Grosso do Sul State, Brazil. Nocturnal and diurnal samplings were conducted in the limnetic region of each lake for 10 consecutive months from April 2008 to January 2009. The zooplankton community presented a wide range of responses to the predation pressure exerted by fish larvae in both environments, while fish larvae showed a typical pattern of normal diel vertical migration. Our results also demonstrated that the diel vertical migration is an important behaviour to avoid predation, since it reduces the spatial overlap between prey and potential predator, thus supporting the hypothesis that vertical migration is a defence mechanism against predation.

scholarly journals Zooplankton Community In Coastal Malalayang Waters Manado

2017 ◽  
Vol 5 (1) ◽  
pp. 77
Author(s):  
Firgiani V. N. Mahipe ◽  
Rose O. S. E. Mantiri ◽  
Ruddy D. Moningkey
Keyword(s):  
Community Structure ◽  
Relative Density ◽  
Larval Stage ◽  
Coastal Waters ◽  
Fish Larvae ◽  
Diversity Index ◽  
Zooplankton Community ◽  
Dominance Index ◽  
Sample Bottle

The purpose of this study was to identify the zooplankton, to know the relative density of zooplankton, and to analyze their community structure, such as Diversity Index (H') and Dominance Index (C).Sampling was conducted on September 30th, 2016 at the depth of 50 cm-withdrawn slowly along 40 meter (2x20 meter back and forth) in each station. The water left in the cod end (reservoir bottle) put into a sample bottle, with alcohol 95%, and taken to the laboratory for identification.Based on the identification, there were 25 species of zooplankton (19 adults, one final larval stage brachyura, 4 larvae of mollusks and worms, and 1 fish larvae 1 unidentified), namely: Oncaea sp. [1], Oncaea sp. [2], Oncaea sp. [3], Diastylis sp., Monstrilla sp., Euchaetomera sp., Euchaeta sp., Ibacus sp., Oithona sp., Synchaeta sp., Farranula sp., Macrosetella sp., Eurydice sp., Calanus sp., Lucifer sp., Eucalanus sp., Scolecithricella sp., Lucicutia sp., Lepidasthenia sp., megalops brachyura, zoea brachyura, larvae of eulimella, larvae of echinospira, larvae of corethra and larvae of fish. Relative density was the highest in Oncaea sp. (34.21%) and Diversity Index (H') was classified as moderate. The diversity index showed that the zooplankton community was less diverse. Dominance Index (C) was also low indicating no species was dominant in the coastal waters of Malalayang.Keyword : Community, zooplankton, Malalayang DuaAbstrak Tujuan penelitian ini adalah untuk mengetahui jenis–jenis zooplankton, mengetahui kepadatan relatif zooplankton, dan menganalisa struktur komunitas zooplankton seperti Indeks Keanekaragaman (H’) dan Indeks Dominasi (C).Pengambilan sampel dilakukan pada 30 September 2016 dengan cara memasukkan plankton net sedalam 50 cm, kemudian ditarik sambil berjalan secara perlahan sepanjang 40 meter (2x20 meter bolak-balik) di tiap stasiun. Air yang tersaring dalam cod end (botol penampungan) dituangkan di dalam botol sampel dan ditambahkan/diawetkan dengan alkohol 95%. Selanjutnya, sampel tersebut dibawa ke Laboratorium untuk diidentifikasi.Berdasarkan hasil identifikasi diperoleh 25 jenis zooplankton (19 dewasa, 1 organisme muda [tahap akhir larva] zooplankton, 4 larva zooplankton dan 1 larva ikan yang tidak teridentifikasi) yaitu: Oncaea sp. [1], Oncaea sp.[2], Oncaea sp.[3], Diastylis sp., Monstrilla sp., Euchaetomera sp., Euchaeta sp., Ibacus sp., Oithona sp., Synchaeta sp., Farranula sp., Macrosetella sp., Eurydice sp., Calanus sp., Lucifer sp., Eucalanus sp., Scolecithricella sp., Lucicutia sp., Lepidasthenia sp., Megalopa Brachyura, Zoea Brachyura, Larva Eulimella, Larva Echinospira, Larva Corethra dan Larva Ikan. Kepadatan Relatif tertinggi terdapat pada Oncaea sp. sebesar 34,21% Nilai Indeks Keanekaragaman (H’) zooplankton di tiga Stasiun tergolong sedang. Nilai tersebut menunjukkan bahwa komunitas organisme dalam kondisi yang kurang beragam. Hasil Indeks Dominasi (C) termasuk kriteria dominasi rendah, menunjukkan bahwa tidak ada spesies yang mendominasi di perairan pantai Malalayang.Kata kunci : Komunitas, zooplankton, Malalayang Dua

scholarly journals Distribution of zooplankton community in Toli shad (Tenualosa toli) habitats, Sarawak, Malaysia

2020 ◽  
Vol 21 (9) ◽  
Author(s):  
WAN MOHAMAD AIMAN ◽  
FATIMAH MD YUSOFF ◽  
AZIZ ARSHAD ◽  
Abu Hena Mustafa Kamal ◽  
JOHAN ISMAIL ◽  
...  
Keyword(s):  
Fish Larvae ◽  
Zooplankton Community ◽  
Southwest Monsoon ◽  
Zooplankton Abundance ◽  
Total Abundance ◽  
Spawning Ground ◽  
Dominant Group ◽  
River Ecosystems ◽  
Different Types ◽  
Upstream Station

Abstract. Aiman WM, Yusoff FM, Arshad A, Kamal AHM, Ismail J, Idris MH, Karim NU, Asif AA. 2020. Distribution of zooplankton community in Toli shad (Tenualosa toli) habitats, Sarawak, Malaysia. Biodiversitas 21: 4022-4033. The river ecosystems of Sarawak has been identified as important-spawning ground for economically important Toli shad (Tenualosa toli) fisheries. In these river ecosystems, zooplankton serves as a secondary producer to the different types of fish larvae including Toli shad. The productivity and biomass of zooplankton are important factors to control the production of higher trophic level organisms like fish larvae and fishes in different stages including T. toli larvae. In this viewpoint, the composition and abundance of zooplankton were investigated at 5 (five) sampling stations (considered to be spawning and nursing areas of Toli shad) at Batang Lupar and Batang Sadong estuaries from July 2016 to June 2017. A total of 29 zooplankton taxa were recorded that belong to 14 major groups comprised of Copepoda (Arthropoda), Crustacean nauplii (Arthropoda), Fish larvae (Chordata), Mollusca (Mollusca), Luciferidae (Arthropoda), Cnidaria (Cnidaria), Ostracoda (Arthropoda), Cirripedia (Arthropoda), Polychaete larvae (Annelida), Chaetognatha (Chaetognatha), Appendicularia (Chordata), Amphipoda (Arthropoda), Echinodermata larvae (Echinodermata) and Cladoceran (Arthropoda). Copepod was dominant group of zooplankton (82.40-94.41%) at all stations, contributing 477.37-25921.89 ind/m3 and 88.38% of total abundance. The second highest was crustacean larvae (2.45-9.38%) in all stations, contributing 0-2391.7 ind/m3 and 5.88% of total abundance. Zooplankton abundance was higher at downstream station 1 (8460.72 ind/m³) followed by station 2 (5479.80 indi/m³), station 3 (4571.95 ind/m³), station 4 (4394.20 ind/m³) and upstream station 5 (4156.73 ind/m³). Canonical Correspondence Analysis showed that the abundance of copepods was highly influenced by total turbidity and nitrate in the riverine and estuarine ecosystems. Abundance of zooplankton was relatively higher (9549.31 ind/m³) during the post-monsoon and lower (3534.56 ind/m³) during the southwest monsoon.

scholarly journals Faunistic survey of the zooplankton community in an oligotrophic sinkhole, Cenote Azul (Quintana Roo, Mexico), using different sampling methods, and documented with DNA barcodes

2018 ◽  
Author(s):  
Lucia Montes-Ortiz ◽  
Manuel Elias-Gutierrez
Keyword(s):  
Dna Barcoding ◽  
High Throughput Sequencing ◽  
Sampling Methods ◽  
Fish Larvae ◽  
Zooplankton Community ◽  
Quintana Roo ◽  
Essential Difference ◽  
Dna Barcodes ◽  
Light Traps ◽  
Freshwater System

This study is the first faunistic inventory of a zooplankton community from an open, karstic and oligotrophic aquatic sinkhole in the south of the Yucatan Peninsula (Mexico), we describe the richness of the zooplankton collected with the combination of plankton nets and light traps of our own design, using morphological and molecular characters to identify the species and demonstrate the effectiveness of only one set of primers to sequence all taxa. Recently, it has been demonstrated that different sampling methods can increase the number of zooplankton species from tropical and temperate systems dramatically. These more effective methods together with DNA barcoding can give a new and more realistic picture of the species dwelling in a freshwater system. In total, we sequenced 268 specimens, and the list of species known in this sinkhole increased from 13 to 77 taxa, with a projection of 87 in total, including cladocerans, copepods, ostracods, fish larvae, tadpoles, rotifers, chironomids, water mites, among others. From the 77 taxa identified by us, 72 BINS (Barcode Index Numbers, equivalent to putative species) were assigned by the BOLD Database (boldsystems.org), and 30 of them are new records for both, BOLD and GenBank (www.ncbi.nlm.nih.gov). There was an essential difference in the number of taxa collected with the plankton nets and the light traps. Only 23 taxa were registered in the nets, representing between 28 and 29% of the total richness, while 67 were present in the light traps representing 87% of the species found. From these, 46 taxa were exclusive to this sampling method. Light traps are an effective method for rapid evaluation of zooplankton. In the future, combining DNA barcoding and high-throughput sequencing methods with more  efficient collecting will enable us to perform quick and precise biomonitoring of any aquatic ecosystem, enabling the detection of changes in zooplankton composition resulting from climate change and anthropogenic disturbances. Nevertheless, as a first step it is fundamental to establish a baseline of DNA barcodes for the species in these ecosystems.

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