Diversity and abundance of macroinvertebrates in the Bosque Protector Cerro Blanco
Citation
Cárdenas M, Zambrano R, Vargas A, Barros-Diaz C, Pérez-Correa J (2023). Diversity and abundance of macroinvertebrates in the Bosque Protector Cerro Blanco. Version 1.3. Fundación para la Conservación e Investigación JaPu. Occurrence dataset https://doi.org/10.60545/u8yge4 accessed via GBIF.org on 2024-08-23.Description
A total of 201 individuals were recorded corresponding to three phyla: Arthropoda, Mollusca and Annelida. The most abundant phyllum was Arthropoda (85%), followed by Mollusca (15%) and the least abundant phyllum was Annelida. The most abundant invertebrates in the study area were insects with 164 individuals, with fewer gastropods with 30 individuals, 6 crustaceans and only one oligochaete. The most abundant insect families were Leptophlebiidae, Helicopsychidae and Veliidae corresponding to the orders Ephemeroptera, Tricoptera and Hemiptera respectively. The observed families of gastropods correspond to Thiaridae, Hydrobiidae and Planorbidae. In the case of crustaceans, two families, Pseudothelphusidae and Hyalellidae, were recorded. Oligochaetes were the least abundant organisms overall in this study with only 1 individual identified only at the class level. In terms of invasive species, Melanoides tuberculata and Hypolobocera guayaquilensis were recorded as intermediate host crayfish of Paragonimus mexicanus, which produces the paragonimiasis disease affecting the lungs of consumers that feed on this crayfish.Sampling Description
Study Extent
The Condor, Guitarra, Canoa, Quebrada 507, Pantano and Pigio streams located in Cerro Blanco were sampled.Sampling
Laboratory analysisIn the laboratory, the organisms were washed and separated from the sediment, then the organisms were analysed, separated and identified to the level of major groups (Phylum) through stereomicroscopes and microscopes; these samples were transferred to 25 cc flasks and preserved with 80% alcohol. Only organisms that presented complete morphological structures were analysed for identification down to the lowest possible taxonomic level (genus or species), for which taxonomic keys specific to the region were used, such as: Holthuis (1952); Roldán (1988); Pennak (1989); Thorp J. P. Covich (1994); Ituarte (1995); Klemm (1995); Springer (2006); Domínguez (2009). Identified specimens were labelled and stored in 25 cc glass jars.
Method steps
- For sample collection, the D-net hand net with a 500 u mesh eye attached to an aluminium handle was used to capture organisms present in the water column, vegetation and boulders in inland waters; this net was used to sweep along the vegetated banks for 30 minutes in an area of approximately 10 m2. Vegetation and small stones were manually removed, allowing for the trapping of organisms attached to roots, stems, submerged leaves and those inhabiting under rocks, which allowed for qualitative analysis (Roldán 1988).
Taxonomic Coverages
N/A
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Hyalellidaerank: family
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Stratiomidaerank: family
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Coleopterarank: order
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Odonatarank: order
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Tanyderidaerank: family
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ANIMALIArank: kingdom
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Dipterarank: order
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Ephemeropterarank: order
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Elmidaerank: family
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Pseudothelphusidaerank: family
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Amphipodarank: order
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Syrphidaerank: family
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Decapodarank: order
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Leptophlebiidaerank: family
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Megapodagrionidaerank: family
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Dytiscidaerank: family
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Chironomidaerank: family
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Hydrophillidaerank: family
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Coenagrionidaerank: family
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Cordullidaerank: family
Geographic Coverages
The Condor, Guitarra, Canoa, Quebrada 507, Pantano and Pigio streams located in Cerro Blanco were sampled. At each site, three replicates were made at the lower. The sampling sites were photographed to obtain a visual description of the study sites.
Bibliographic Citations
Contacts
Maritza Cárdenasoriginator
position: Researcher
Fundación Bioelit
Urdesa Central Víctor Emilio Estrada 810 y Guayacanes. Guayaquil. Ecuador.
EC
userId: https://orcid.org/0000-0001-5237-9137
Raul Zambrano
originator
position: Researcher
Fundación Bioelit
Urdesa Central Víctor Emilio Estrada 810 y Guayacanes. Guayaquil. Ecuador.
EC
userId: https://orcid.org/0000-0003-4373-1041
Anahi Vargas
originator
Fundación para la Conservación e Investigación JaPu
Guayaquil
EC
userId: https://orcid.org/0000-0001-8324-5334
Cristian Barros-Diaz
originator
position: Coordinator
Fundación para la Conservación e Investigación JaPu
Ciudad Olimpo
Guayaquil
EC090150
EC
Telephone: +593981834342
email: diaz.cri@hotmail.com
userId: https://orcid.org/0000-0003-0727-7996
Julian Pérez-Correa
originator
position: Director
Fundación para la Conservación e Investigación JaPu
Guayaquil
EC
Telephone: +593981834342
userId: https://orcid.org/0000-0002-9205-5396
Cristian Barros-Diaz
administrative point of contact
position: Coordinator
Fundación para la Conservación e Investigación JaPu
Ciudad Olimpo
Guayaquil
EC090150
EC
Telephone: +593981834342
email: diaz.cri@hotmail.com
userId: https://orcid.org/0000-0003-0727-7996