Metadata Catalogue
Biotic parameters in Shahid Rajaee reservoir (Iran)
Human activities in riverine water bodies can cause loading of nutrients and other pollutants in receiving systems e.g. reservoirs, affecting species interactions, population dynamics and ecosystem functioning. The present study aimed to investigate the influence of anthropogenic alteration on an artificial water body, i.e. the Shahid Rajaee reservoir (Mazandaran province, Northern Iran). The reservoir is subject to high anthropogenic nutrient loads from the Shirinroud and Sefidroud rivers, the effect of which needs to be evaluated considering the strategic importance of the reservoir as a source of water for the human population. A field sampling campaign was carried out at seven stations (one in each of the two river mouths and five in the reservoir itself) each month from April to July 2016. The study entailed sampling of benthic macroinvertebrate fauna at the river mouths and plankton communities at the reservoir stations. In addition to macroinvertebrate and plankton collections, physicochemical and nutrient variables were measured at all stations. Substantial loading of organic matter, mainly from the Shirinroud river, was detected throughout the sampling period, with a detrimental effect on both benthic and plankton communities. The decline in plankton diversity was particularly noticeable at stations close to the river mouths during June and July, with a bloom of Cyanobacteria and Dinoflagellates and strong dominance of larger zooplankton taxa, i.e. Cladocera. Our results suggest that river water quality, affected by human activities, alters the planktonic communities in Rajaee reservoir. Our assessment indicates that measures on both the Shirinroud river and the reservoir are required in order to mitigate and prevent even stronger eutrophication of the reservoir ecosystem.
Default
Identification
- Alternate Identifier
-
5efe843b-3e64-4a80-9978-8d9174fdd02b
- Publication Date
- 2022-01-12
- Title
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Biotic parameters in Shahid Rajaee reservoir (Iran)
- Abstract
-
Human activities in riverine water bodies can cause loading of nutrients and other pollutants in receiving systems e.g. reservoirs, affecting species interactions, population dynamics and ecosystem functioning. The present study aimed to investigate the influence of anthropogenic alteration on an artificial water body, i.e. the Shahid Rajaee reservoir (Mazandaran province, Northern Iran). The reservoir is subject to high anthropogenic nutrient loads from the Shirinroud and Sefidroud rivers, the effect of which needs to be evaluated considering the strategic importance of the reservoir as a source of water for the human population. A field sampling campaign was carried out at seven stations (one in each of the two river mouths and five in the reservoir itself) each month from April to July 2016. The study entailed sampling of benthic macroinvertebrate fauna at the river mouths and plankton communities at the reservoir stations. In addition to macroinvertebrate and plankton collections, physicochemical and nutrient variables were measured at all stations. Substantial loading of organic matter, mainly from the Shirinroud river, was detected throughout the sampling period, with a detrimental effect on both benthic and plankton communities. The decline in plankton diversity was particularly noticeable at stations close to the river mouths during June and July, with a bloom of Cyanobacteria and Dinoflagellates and strong dominance of larger zooplankton taxa, i.e. Cladocera. Our results suggest that river water quality, affected by human activities, alters the planktonic communities in Rajaee reservoir. Our assessment indicates that measures on both the Shirinroud river and the reservoir are required in order to mitigate and prevent even stronger eutrophication of the reservoir ecosystem.
- Dataset Creator
-
Sari Agricultural Sciences and Natural Resources University - Hossein Rahmani (Professor)
Sari
,Mazandaran
,48181 68984
,Iran
- Dataset Creator
- Dataset Creator
- Dataset Creator
- Dataset Creator
-
Research Institute on Terrestrial Ecosystems (IRET) - National Research Council of Italy (CNR) - Francesco Cozzoli (Researcher)
Via Salaria
,Monterotondo Scalo (Roma)
,Italy
- Dataset Creator
- Dataset Contact
-
Sari Agricultural Sciences and Natural Resources University - Hossein Rahmani (Professor)
Sari
,Mazandaran
,48181 68984
,Iran
- Dataset Contact
- Dataset Contact
- Dataset Contact
- Dataset Contact
-
Research Institute on Terrestrial Ecosystems (IRET) - National Research Council of Italy (CNR) - Francesco Cozzoli (Researcher)
Via Salaria
,Monterotondo Scalo (Roma)
,Italy
- Dataset Contact
- Keywords (None)
-
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phytoplankton
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zooplankton
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macroinvertebrate
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nutrients
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river
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reservoir
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water quality
-
Geographic Coverage
- Geographic Description
-
Shahid Rajaee is a reservoir located in the Mazandaran province of northern part of Iran.
Bounding Box
- West Bounding Coordinate
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53.23523
- East Bounding Coordinate
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53.2967
- North Bounding Coordinate
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36.24622
- South Bounding Coordinate
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36.22898
Temporal Coverage
Range of Dates
- Begin Date
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2016-04-01
- End Date
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2016-07-01
License Information
- Intellectual Rights
-
This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Distribution
Online
- A brief description of the the content of online URL.
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DOI
Online
- A brief description of the the content of online URL.
-
Info and download page on the LifeWatch Italy Data Portal
Project
• Project
- Title
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Shift in ecological communities due to environmental perturbation in Shahid Rajaee reservoir (Iran)
Personnel
Individual Name
- Given Name
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Hossein
- Surname
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Rahmani
- Organization Name
-
Sari Agricultural Sciences and Natural Resources University
- Position Name
-
Professor
- Role
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principalInvestigator
Personnel
Individual Name
- Given Name
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Milad
- Surname
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Shokri
- Organization Name
-
University of Salento
- Position Name
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Postdoc
- Role
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principalInvestigator
Personnel
Individual Name
- Given Name
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Khosrow
- Surname
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Janikhalili
- Organization Name
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Sari Agricultural Sciences and Natural Resources University
- Position Name
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Researcher
- Role
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principalInvestigator
Personnel
Individual Name
- Given Name
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Asghar
- Surname
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Abdoli
- Organization Name
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Shahid Beheshti University
- Position Name
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Professor
- Role
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principalInvestigator
Personnel
Individual Name
- Given Name
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Francesco
- Surname
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Cozzoli
- Organization Name
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Research Institute on Terrestrial Ecosystems (IRET) - National Research Council of Italy (CNR)
- Position Name
-
Researcher
- Role
-
principalInvestigator
Personnel
Individual Name
- Given Name
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Alberto
- Surname
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Basset
- Organization Name
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University of Salento
- Position Name
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Professor
- Role
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principalInvestigator
- Funding
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Department of the Environment of the Islamic Republic of Iran, Mazandaran, under award number 29544.
Methods
• Method
Method Step
- Description
-
The study entailed sampling of benthic macroinvertebrate fauna at the river mouths and plankton communities at the reservoir stations. For phytoplankton, at each station three samples were taken, within 10 m distance. One litre of sub-surface water was collected using a Ruttner sampler (HYDRO-BIOS). The samples were immediately preserved in opaque containers in situ with Lugol’s iodine solution and transferred to the university of SANRU. Following Utermöhl (1958), a 50 ml sub-sample was poured into a settling chamber and left to settle for 24 h. The base plate was then removed from the chamber and a slide placed over the top of the base plate into which the cells had settled. The composition of the samples was analysed using an optical microscope (400× magnification), and the results were recorded as cells. Detailed taxonomic identification was performed with reference to Prescott (1954); Botes (2001); Wehr (2011); Josef (2014); Moestrup (1988). Zooplankton samples were collected using a plankton net (0.20 m2 mouth area, 50 µm mesh) towed along a 12-metre transect below the water surface. The samples then were preserved in Lugol’s iodine solution and transferred to the university of SANRU. Following (Heath 2001), the zooplankton specimens were enumerated and identified down to genus level under a microscope (100-400x magnification) using the keys provided in (Bruno et al. 2005; Defaye 1988; De Bernardi and Peters 1987; Voigt and Koste 1987). Specimen counts were performed in a Sedgwick-Rafter chamber and densities were expressed as individuals per litre. Benthic macroinvertebrates were sampled using a 60 µm-mesh Surber net with a surface area of 0.09 m2. At each station three samples were collected, one near each bank and one in the centre of the river. The samples were preserved in 75% alcohol and transferred to SANRU. The samples were sorted under a dissecting microscope and identified to the lowest possible taxonomic level, with reference to selected keys (Pescador et al. 2004; Elliott et al. 1988; Milligan 1997).
Sampling
- Sampling Description
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Data were collected in Shahid Rajaee reservoir located in the northern part of Iran. It was created by damming the Shirinroud and Sefidroud permanent tributaries and drains via the Tajan river to the Caspian Sea, with an annual average flow of 19.4 cubic meters/seconds. The average annual pre-dam discharge of Shirinroud and Sefidroud rivers jointly is 10.5 cubic meters/seconds. The surface area of the reservoir is 428 hectares at normal water level i.e., the level evidenced by the long-term presence of surface water as indicated directly by hydrophytic plants or hydric soils (Vuglinskiy 2009), and the total reservoir volume is 191.5×106 cubic meters. The area surrounding the reservoir is covered mainly by forest, natural rangeland, cropland and trout farms. The reservoir is used for flood control, and supplies water for hydroelectric power production and (more recently) drinking water for a population of 400 ×103 people located in Sari City (Makhlough et al. 2017). The sampling design was as follows: for phyplankton 4 times, 5 sampling stations and three samples; for Zooplankton 4 times, 5 sampling stations and 1 sample; for benthos 4 times, 2 sampling stations and three samples.
Data Tables
• Data Table
- Name
-
Benthos_v2_08_Feb_2022.csv
- Description
-
Macroinvertebrates_Rivers_Iran
Attribute List
Attribute
- Name
-
month
- Definition
-
The integer month in which the Event occurred.
Attribute
- Name
-
eventID
- Definition
-
An identifier for the set of information associated with an Event (something that occurs at a place and time). May be a global unique identifier or an identifier specific to the data set.
Attribute
- Name
-
genus
- Definition
-
The full scientific name of the genus in which the taxon is classified.
Attribute
- Name
-
density
- Definition
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The number of individuals per square meters.
Attribute
- Name
-
year
- Definition
-
The four-digit year in which the Event occurred, according to the Common Era Calendar.
Attribute
- Name
-
decimallatitude
- Definition
-
The geographic latitude of the geographic center of a Location (in decimal degrees, using the spatial reference system WGS84). Positive values are north of the Equator, negative values are south of it. Legal values lie between -90 and 90, inclusive.
Attribute
- Name
-
decimallongitude
- Definition
-
The geographic longitude of the geographic center of a Location (in decimal degrees, using the spatial reference system WGS84). Positive values are east of the Greenwich Meridian, negative values are west of it. Legal values lie between -180 and 180, inclusive.
- entityType
-
text/csv
• Data Table
- Name
-
Plankton_v2_08_Feb_2022.csv
- Description
-
Plankton_Water_Quality_Lake_Iran
Attribute List
Attribute
- Name
-
month
- Label
-
month
- Definition
-
The integer month in which the Event occurred.
Attribute
- Name
-
eventID
- Label
-
eventID
- Definition
-
An identifier for the set of information associated with an Event (something that occurs at a place and time). May be a global unique identifier or an identifier specific to the data set.
Attribute
- Name
-
category
- Label
-
category
- Definition
-
the categories of plankton classification
Attribute
- Name
-
phylum
- Label
-
phylum
- Definition
-
The full scientific name of the phylum or division in which the taxon is classified
Attribute
- Name
-
genus
- Label
-
genus
- Definition
-
The full scientific name of the genus in which the taxon is classified.
Attribute
- Name
-
density
- Definition
-
The number of cells per liter
Attribute
- Name
-
year
- Label
-
year
- Definition
-
The four-digit year in which the Event occurred, according to the Common Era Calendar.
Attribute
- Name
-
decimallatitude
- Definition
-
The geographic latitude of the geographic center of a Location (in decimal degrees, using the spatial reference system WGS84). Positive values are north of the Equator, negative values are south of it. Legal values lie between -90 and 90, inclusive.
Attribute
- Name
-
decimallongitude
- Definition
-
The geographic longitude of the geographic center of a Location (in decimal degrees, using the spatial reference system WGS84). Positive values are east of the Greenwich Meridian, negative values are west of it. Legal values lie between -180 and 180, inclusive.
- entityType
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text/csv