scholarly journals Algae and Cyanobacteria Diversity and Bioindication of Long-Term Changes in the Hula Nature Reserve, Israel

Diversity ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 583
Author(s):  
Sophia Barinova ◽  
Alla Alster

Lake Hula, the core of one of the most extensive wetland complexes in the Eastern Mediterranean, was drained in 1951–1958. However, about 350 hectares of papyrus marshes were allocated in the southwestern part of the previous lake and became the Hula Nature Reserve status, the first of two wetlands in Israel included in the Ramsar List of Wetlands of International Importance. The list of algae and cyanobacteria species of Lake Hula was compiled by us for the first time based on data from publications of 1938–1958, as well as our research in the Hula Nature Reserve, obtained within the framework of the monitoring program for 2007–2013. The list includes 225 species and intraspecies of algae and cyanobacteria belonging to eight phyla. The dynamics of the species richness of algae and cyanobacteria flora for 1938–2013 are shown. Species-bioindicators of water quality have been identified, and the change in their composition by ecological groups for a period of about a hundred years has been shown. Based on the species richness of algae communities, water quality indices were calculated with particular attention to changes in trophic status during the study period. The algae flora of Lake Hula and Hula Nature Reserve was found to be similar, but bioindication has revealed an increase in salinity and organic pollution in recent years.

Diversity ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 207
Author(s):  
Olga Skorobogatova ◽  
Elvira Yumagulova ◽  
Tatiana Storchak ◽  
Sophia Barinova

Algal diversity in the bogs of the Ershov oil field of the Khanty-Mansiysk Autonomous Okrug–Yugra (KMAO-Yugra) with the gradient of oil pollution between 255 and 16,893 mg kg−1 has been studied with the help of bioindication methods and ecological mapping. Altogether 91 species, varieties, and forms of algae and cyanobacteria from seven divisions have been revealed for the first time from seven studied sites on the bogs. Charophyta algae prevail followed by diatoms, cyanobacteria, and euglenoids. The species richness and abundance of algae were maximal at the control site, with charophytic algae prevailing. The species richness of diatoms decreased in the contaminated area, but cyanobacteria were tolerated in a pH which varied between 4.0 and 5.4. Euglenoid algae survived under the influence of oil and organic pollution. Bioindication revealed a salinity influence in the oil-contaminated sites. A comparative floristic analysis shows a similarity in communities at sites surrounding the contaminated area, the ecosystems of which have a long-term rehabilitation period. The percent of unique species was maximal in the control site. Bioindication results were implemented for the first time in assessing the oil-polluted bogs and can be recommended as a method to obtain scientific results visualization for decision-makers and for future pollution monitoring.


2012 ◽  
Vol 11 ◽  
pp. 1-12
Author(s):  
Juraj Čačaný

A total of 56 species of land snails and 9 freshwater species were recorded at 22 alluvial forest sites (14 alder sites, 8 beech or hornbeam sites) in the Small Carpathian Mts. (SW Slovakia) during the researches in 2008–2009. Fifty two species were recorded in alder carrs and 32 species in adjacent forests. Woodland species sensu stricto (17 species, 32.7%) and euryecious species (10 species, 19.2%) predominated in alder forests. Dominant ecological groups in beech and hornbeam forests were woodland species sensu stricto (14 species, 43.8%) and woodland eurytopic species (6 species, 18.8%). There were 28 species (433 individuals) at the highest species richness site (Lozorno, alder carr). Generally, the species richness was higher in alder forests in comparison to beech or hornbeam forests. As expected, there was a higher number of species at the carbonate sites than non-carbonate sites. The following species were recorded in the Small Carpathian Mts. for the first time: Deroceras rodnae s. lat. Grossu et Lupu, 1965, Deroceras turcicum (Simroth, 1894) and freshwater snail Gyraulus rossmaessleri (Auerswald, 1852).


2018 ◽  
Vol 19 (4) ◽  
pp. 1194-1206 ◽  
Author(s):  
ALEXANDER B. RUCHIN ◽  
ANDREY P. MIKHAILENKO

Ruchin A, Mikhailenko AP. 2018. Fauna of mantids and orthopterans (Insecta: Mantodea, Orthoptera) of the Mordovia StateNature Reserve, Russia. Biodiversitas 19: 1194-1206. The data on the distribution and habitat confinement of one Mantodea species and44 Orthoptera species in the Mordovia State Nature Reserve are given. Of these, one species of Orthoptera (Calliptamus italicus) isrecorded for the first time for the Mordovia State Nature Reserve, four species (Mantis religiosa, Phaneroptera falcata, Conocephalusfuscus, Tettigonia caudata) are recently penetrated, one species (Conocephalus fuscus) is reported in the Republic of Mordovia for thefirst time. In the fauna of mantids and orthopterans of the Mordovia Reserve, three ecological groups were identified: polytopic, notconfined to certain biotopes (14 species), hygrophilous representatives of intrazonal habitats (5 species) and xerophiles. Among thelatter, there are species of extrazonal habitats (13 species) and confined to dry pine forests (7 species). The steppe group was notrepresented. For the three key habitats with the largest number of identified species, brief botanical descriptions are given. Factorsinfluencing the species composition and current state of fauna of mantises and orthopterans of the Mordovia Reserve are discussed, andmeasures are proposed for the conservation of vulnerable species.


2019 ◽  
Vol 48 (2) ◽  
pp. 125-139 ◽  
Author(s):  
Sophia Barinova ◽  
Anna Bondarenko ◽  
Larisa Ryabushko ◽  
Sergey Kapranov

AbstractBioindication of organic pollution and seawater quality was carried out for the first time in the western part of the Sea of Azov on the basis of species composition and quantitative characteristics of microphytobenthos. A total of 229 algal samples were collected at 17 sites over the period of 2005-2014 on three different substrates in three areas under study: Sivash Gulf, the Kerch Strait and Cape Kazantip. In total, 200 taxa of algae were found, which belong to six taxonomic divisions with a predominance of diatoms. Among those, 108 taxa are indicators of substrate, water temperature, salinity, water pH, trophic state, the type of nutrition and organic pollution of water. It has been shown that the most active self-purification of water takes place in communities on stony substrates. The largest number of algae species (50%) occurs in the cleanest waters of the Kazantip Nature Reserve (Water Quality Classes I–II). The species composition of organic pollution indicators in Sivash Gulf corresponds to waters of Classes III–IV, which are more polluted than those of the Kerch Strait and Cape Kazantip. All the studied areas of the Sea of Azov are cleaner compared to some waters of the Eastern Mediterranean and the Sea of Japan.


PhytoKeys ◽  
2019 ◽  
Vol 128 ◽  
pp. 1-31
Author(s):  
Lyudmila N. Bukhtiyarova

Numerous species of Eunotia Ehrenb., widely distributed in the world flora, prefer acidic, dystrophic or oligotrophic freshwater habitats with low conductivity and usually occur in epiphytic or epilithic hydrotopes. In Ukraine, only 32 species and eight varieties of Eunotia were known until this study. For the first time, 9 more species have been recorded mainly from the Cheremsky Nature Reserve, located in Ukrainian Polissya. New findings include 2 species widely distributed in the world flora on most continents and 7 rare species known from several locations, among them E.genuflexa, E.jarensis and E.ruzickae, which are probably European endemics as they have not been reported from other continents. For the present time in the Cheremsky Nature Reserve, the 20 species recorded here, the highest species richness of Eunotia in Ukraine, bring the total number of Eunotia in Ukraine to 41 species, which comprises only 7% of Eunotia species in the world flora. This is indirect evidence of insufficient investigation of the wetlands in Ukraine where Eunotia usually is represented with high species richness. Several definitions are suggested to describe morphological features that are peculiar to the diatom frustule particular to the Eunotia species. The genus Eunotia possesses a mirror-symmetric, mantle-offset, brevisslit raphe system, which may or may not have terminal raphe fissures. Morphological analysis provided in this study revealed the absence of terminal raphe fissures for many species of Eunotia. Instead, the distal ends of the raphe slits finish on the outer valve surface by funnel holes, sometimes pore-like ones, connected with the helictoglossae. However, in the literature those distal ends of the raphe slits were described erroneously as terminal raphe fissures. For the first time different types of raphe system are grounded. Two species Eunotiaimplicata Nörpel-Schempp et al. in Alles et al. and Eunotiaincisa W. Smith ex Gregory were lectotypified.


1970 ◽  
Vol 5 (1) ◽  
pp. 1-10
Author(s):  
Chen-Lin Soo ◽  
Teck-Yee Ling ◽  
Nyanti Lee

Kuching Wetland National Park (KWNP) is one of the RAMSAR wetlands in Malaysia, a wetland of international importance. Understanding the water quality of the riverine system that drains the KWNP is crucial for sustainable management of the wetland. Hence, the water quality of Sibu Laut River, which forms the western boundary of the park, is described in this study. Three samplings were carried out during low tide along the western boundary of the wetland. Sub-surface and near-bottom water samples at six selected sampling sites were taken and analysed for physico-chemical parameters. The variations between sub-surface and near-bottom water column of those parameters were detectable and due mainly to the influence of tidal currents. A peak of sub-surface organic phosphorus was observed at station 2 next to the village of Sibu Laut whereas elevated near-bottom organic phosphorus was observed at station 4 near to the shrimp farm. Organic phosphorus represents a significant fraction of the total phosphorus, comprising from 59.76% to 83.64% and 62.50% to 78.67% for sub-surface and near-bottom water, respectively. In contrast, inorganic phosphorus was extremely low at most of the stations. There is a significant correlation between organic phosphorus and chlorophyll a, which indicates association of organic phosphorus and phytoplankton in the study area. The present study showed that Sibu Laut River had minimal pollution impact to the wetland, except the elevated sub-surface organic phosphorus near the Sibu Laut Village and elevated near-bottom organic phosphorus near the shrimp farm. Continuous monitoring program is important for early detection of future threats to the water quality of Sibu Laut River.


2015 ◽  
Vol 17 (2) ◽  
pp. 23-44
Author(s):  
Mihaela Hrisa Florescu ◽  
Maria Magdalena Maxim ◽  
Laura Momeu ◽  
Mirela Cîmpean ◽  
Karina Paula Battes

Abstract The present paper aims to characterize the algal communities from Balta Mică a Brăilei Nature Park in terms of their species richness and their ability to reflect the water quality of the aquatic ecosystems they live in. Thirteen shallow floodplain lakes, both permanent and temporary, were considered for the present study, with 16 sampling occasions in 2012 and 2013. More than 300 algal taxa were identified, with the green algae (Chlorophyta) being the dominant phyla in almost all the sampling sites. The trophicity and the organic pollution reached high values in 2012, probably due to low water levels caused by drought. Spring floods from 2013 led to lower trophicity and saprobity levels in all sampled water pools.


2017 ◽  
Vol 9 (4) ◽  
pp. 480-486
Author(s):  
Keziah N. IBEMENUGA ◽  
Blessing C. NDUBA ◽  
Joseph E. EYO

The influence of abattoir wastes on macroinvertebrates distribution in River Idemili, South-Eastern Nigeria, was studied. Three sampling stations 1, 2 and 3 representing upstream of the impacted site, impacted site and downstream of the impacted site respectively were selected. The water quality characteristics, which were significantly different (p<0.05) among the study stations, include water temperature, conductivity, dissolved oxygen and biochemical oxygen demand and phosphatephosphorus. There was no significant difference (p>0.05) in the levels of pH and nitrate-nitrogen among the study stations. Thirteen taxa composed of 201 individuals were encountered. Station 1 had the highest taxa (13) species, as well as the number of individuals (92, 45.8%), followed by station 3 with 12 species and 64 (31.8%) individuals. Station 2 had the least diversity and abundance of 6 species composed of 45 (22.4%) individuals. Macroinvertebrate abundance in the study stations were significantly different (p<0.05). Arthropoda (54.7%) was the dominant phylum. Chironomids (Family: Chironomidae) dominated the samples at all the study stations. Coleoptera was completely absent at the impacted site due to organic pollution. Margalef’s species richness and Shannon Wiener index for general diversity were the highest in stations 1 and 3. The low macroinvertebrate abundance, species richness and Shannon diversity index in station 2 may be attributed to the decimating impacts of abattoir wastes entering the water in this station. Renkonen’s number calculated for pairs of stations revealed that stations 1 and 3 were significantly similar, while stations 1 and 2, 2 and 3 were dissimilar. Conclusively, abattoir wastes distort water quality and affect the community structure, composition, distribution and abundance of macroinvertebrates inhabiting aquatic ecosystems.


1995 ◽  
Vol 31 (8) ◽  
pp. 229-233 ◽  
Author(s):  
T. H. L. Claassen ◽  
R. Maasdam

The Alde Feanen (2500 ha) is a relatively large nature reserve in the lower middle part of the province of Friesland, The Netherlands. The area consists of grass- and woodland, peat-diggings, and broads and open basin water. The nature-function -with specific ecological goals- is the main target for the water management. However, the water quality in the various waters did not agree with the formulated standards for this area. In the period 1990–1993 many restoration measures have been realised, namely isolation from the basin water, dredging, biomanipulation, and hydrological re-arrangement. A monitoring program, started at the end of 1987, follows the effects of the various measures. First results are an improvement of the water quality of hydrological isolation, and of dredging. Biomanipulation gives varying results, depending on the effectivity of the removal of bream. Local factors, such as a colony of cormorants, can nullify restoration measures. In general, water quality is improving, which gives a perspective on the re-introduction of the otter.


2019 ◽  
Vol 16 (1) ◽  
pp. 21-24
Author(s):  
O.S. Shevchenko

New data was added to the oribatid species composition of the Rivnensky Nature Reserve. Overall, 62 mite species were recorded for the territory of research in this study. The species Acrogalumna longipluma, Micreremus brevipes, Licneremaeus licnophorus, Oribatella reticulata, and Porobelba spinosa were not previously listed for the Western Polissia. Of the 60 species of Lower Oribatida mites that have been recorded by other authors in that area, only 18 are found again in the Rivnensky Nature Reserve, indicating that our results are intermediate. A representative of the genus Mainothrus Choi, 1996 (Mainothrus badius (Berlese, 1905)) is found in Ukraine for the first time.


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