Abstract: Millipedes are soil macrodetritivores with considerable roles in decomposing organic matter and recycling nutrients. This paper aims to identify the effects of land use on millipedes based on a literature review. Land use changes impact species distribution, diversity, and behavior with consequences for litter decomposition and soil quality. Surrounding landscapes influence the millipedes’ community structure. The effects of land use under different ecological contexts and in wetlands and woody riparian zones constitute essential gaps in knowledge. PubDate: Sat, 23 Mar 2024 00:00:00 GMT
Abstract: The article is focused on the current state of biodiversity in the aquatic environment of the Utrish Nature Reserve. Implementation of the multi-level monitoring program for fish and crustacean fauna, conducted in the waters of the Utrish Nature Reserve during the period 2016-2018, using classical methods of biological analysis, as well as visual underwater fish counting, allowed us to assess the overall state of biodiversity in this area as sufficiently stable. The population status of the model indicator species, the European black scorpionfish Scorpaena porcus, was also stable during this period, confirming the effectiveness of protective measures in this area. Due to the continued increase in anthropogenic pressure on coastal marine biocenoses, monitoring studies require further continuation. PubDate: Sat, 23 Mar 2024 00:00:00 GMT
Abstract: The studied area is the single largest fishery in Bangladesh. The present work was conducted at two points of the Padma River (Sureshwar and Tarabunia) from July 2019 to June 2021 to monitor the efficiency of the 5th Hilsa sanctuary. Proportion of spent rate, length frequency, larvae and Jatka abundance, CPUE of larvae, the length-weight relationship of Jatka, plankton composition, and physico-chemical parameters of water were assessed and found adequate in the Hilsa sanctuary. PubDate: Sat, 23 Mar 2024 00:00:00 GMT
Abstract: The purpose of this investigation was to identify the presence of parasite infections and cystic formation in Scomber japonicus, Scomber scombrus, and Thunnus thynnus. Euryphorus brachypterus and Clavellisa scombri were identified from Thunnus thynnus and Scomber scombrus, respectively. Anisakis pegreffii was identified from Scomber japonicus and Scomber scombrus by using molecular methods. Additionally, Anisakis typical was determined from Scomber japonicus. PubDate: Sat, 23 Mar 2024 00:00:00 GMT
Abstract: In this study, we report the findings regarding the toxicity of surface waters collected in March 2023 from five sampling stations in the Zaghen restoration area, located within the Danube Delta Biosphere Reserve, Romania. The assessment of acute toxicity was conducted using two microbiotests: the Thamnotoxkit F and the Daphtoxkit FTM magna. Even if the acute toxicity effects are less than 50% and do not allow the calculation of a toxicity score for the water samples, the experiments show a different vulnerability of the two zooplanktonic species to the presence of heavy metals in the water with mortality being higher in Thamnocephalus platyurus (20%) than in Daphnia magna (15%). PubDate: Sat, 23 Mar 2024 00:00:00 GMT
Abstract: Belčišta wetland is the largest wetland habitat in R. of North Macedonia, located 20 km distance from Ohrid Lake and it is a relict remnant of the ancient Desaret Lake, which existed in this area since the Pliocene. This region hosts an endemic freshwater species of the Balcan Penninsula, Pelasgus minutus, which is threatened by habitat loss.There are intentions of artificial introduction of salmonid fishes in Belčišta wetland to develop the recreative fishery and tourism in this area. Introduction and spread of salmonids is a great risk factor to the survival of the ohrid minnows (Pelasgus minutus). PubDate: Sat, 23 Mar 2024 00:00:00 GMT
Abstract: Pesticides are widely used to protect crops from pests, ensure food security, and increase agricultural productivity. However, the application of these chemicals can lead to unintended adverse effects on non-target aquatic organisms. This scientific manuscript provides a comprehensive review of the acute and chronic effects of pesticides on aquatic non-target organisms, focusing on their behavior, physiology, reproductive success, and populations dynamics. Understanding these effects is critical to developing effective strategies to minimize the ecological risks associated with pesticide use. PubDate: Sat, 23 Mar 2024 00:00:00 GMT
Abstract: Using the Shannon-Weaver index (H’), the link between the physical and chemical components of the biological component in the Bosnia River was examined. The results showed that pH and H’ had a strong link (rs = 0.59), while total nitrogen and H’ had a poor relationship (rs = 0.44), and COD-Cr had a weak relationship (rs = 0.34). KPK-Cr (I water class) had the lowest parameter concentrations, whereas electrical conductivity (IV-V water class) showed the highest. The values of the biological elements range from a poor 0.267 to a high state of 2.26. PubDate: Sat, 23 Mar 2024 00:00:00 GMT
Abstract: We have studied the historical and current distribution of brown trout, European grayling, and Volga nase in the Republic of Tatarstan. The influence of environmental variables on the current distribution of these fish was assessed using regression methods. The probability of occurrence in small rivers of all three fish species is currently low, ranging from 2.8 to 5.3%. Each of the recorded environmental variables had statistically significant relationships with presence/absence of at least one fish species, but only two variables (elevation and human impact) significantly affected the probability of occurrence of all species in the study. PubDate: Thu, 11 Jan 2024 00:00:00 GMT
Abstract: Romanogobio banaticus it is a species of conservation interest with a small distribution range in the south-west of the Romanian Carpathians basin. In spite of the presence of some moderate anthropogenic threats and risks, the Nera River is a sanctuary for this fish. The lower latitude of Nera in comparison with other rivers where this fish is living, explain its presence in an atypical ichthyological zone. This species presence is permanent, the abundance is relatively high, the age structure is well balanced, more than that, in some sectors is a co-dominant species, all of these revealing a favourable conservation status. PubDate: Thu, 11 Jan 2024 00:00:00 GMT
Abstract: Hydrobiological research of the main components of the biota of the lower reaches of the Sula River was conducted. The river flows into the Kremenchutsk Reservoir. Zoobenthos, zooperiphyton, vascular water plants, and ichthyofauna in lotic and lentic microbiotopes were studied. Species and communities of protected status were stated. It was shown, that a significant share (about 30%) consists of rheophilic species. 28 species of fish were registered in the studied area, of which eight are invasive species and 10 are under protection. The biotopic distribution of different fish species, and the intensity of the downstream migration of juvenile fishes in spatial, temporal, and species aspects were estimated. It was identified, that about 12 million young fish migrate from the researched part of the Sula River to the Kremenchuk reservoir during the season. PubDate: Thu, 11 Jan 2024 00:00:00 GMT
Abstract: The riparian vegetation in the studied area have its particularties, due to the geographic position in the South-Western part of Romania with mountains and plains. These come together to give a most interesting and unique mosaic of habitats of riparian vegetation with a remarkable biodiversity. The climatic conditions and the relief with plains and mountains elements give the specific character to the studied riparian vegetation. PubDate: Thu, 11 Jan 2024 00:00:00 GMT
Abstract: Monitoring wetlands of Kenya is critical for analysis of environmental changes since they present unique ecosystems with special hydrological balance and biodiversity. In this study, the Landsat 8-9 OLI/TIRS satellite images for 2015-2022 were classified using GRASS GIS scripts to evaluate changes in the Lorian Swamp wetland, north-eastern Kenya. The results of the image analysis presented maps of land cover changes including wetlands. The study demonstrated technical effectiveness of the GRASS GIS for image analysis, and contributed to the environmental monitoring of African wetlands. PubDate: Thu, 11 Jan 2024 00:00:00 GMT
Abstract: This scientific paper examines the role of Integrated Coastal Management (ICM) approach in the protection of coastal and marine resources in Tanzania. It engages coastal resource users and practitioners in focus group discussions and interviews, and complements the data obtained with documented sources. A modified version of the Benefit Analysis Framework is adopted from Wenger et al. (2011) to analyze the extent to which ICM yields a wide range of benefits that may potentially promote the protection of coastal ecosystem and enhance the commitment of communities that live adjacent to the coastal strip to manage mangroves, fisheries, coral reefs, and coastal land in a sustainable manner. PubDate: Thu, 11 Jan 2024 00:00:00 GMT
Abstract: The population genetic structure of Bulinus globosus, an important intermediate host snail for Schistosma haematobium, in Nigeria was studied using Random Amplified Polymorphic DNA Technique. The five primers amplified genomic DNA of B. globosus from three populations with one region and 999 permutations. With 79 loci, the % polymorphic bands for each primer across all population samples were 55.70% (River Karaye), 58.23% (River Bagwai) and 60.76% (River Kano). The mean heterozygosity was 0.175, 0.190 and 0.197 for snails caught in Karaye, Bagwai, and Kano respectively. The highest genetic distance (0.141) and identity (0.919) were observed between the populations of Bagwai, Kano, and Karaye and Bagwai. The variations within and among the snail populations were 76% and 4% respectively, while the UPGMA dendogram revealed no outliers. The gene pool of B. globosus was microgeographically fragmented. PubDate: Thu, 11 Jan 2024 00:00:00 GMT
Abstract: Mullus barbatus barbatus (Linnaeus, 1758) is a teleost fish with high commercial value in Algeria. 120 fish specimens of Mullus barbatus barbatus (L.) sampled from Algerian coasts were examined for their parasitic nematodes. Collected larvae were identified according to morphological and molecular analysis. Collected larvae belong to Hysterothylacium reliquens. This parasitic nematode is reported for the first time in Algerian coasts. PubDate: Thu, 11 Jan 2024 00:00:00 GMT
Abstract: The Romanian Oltul Mijlociu-Cibin-Hârtibaciu Natura 2000 site of community importance (SCI) was designated for the purpose of protecting biodiversity and maintaining the wild flora and fauna in a favourable conservation status, as well as the natural habitats of conservation interest. This research focused on the possible disparition of one protected fish species Pelecus cultratus (Linnaeus, 1758) and the appearance of an alien one Babka gymnotrachelus (Kessler, 1857), as ecological indicators of the fact that at least this Natura 2000 site is far from being properly protected and a new, more responsible way should be followed and different administrators put in charge of the areas management. PubDate: Sun, 16 Jul 2023 00:00:00 GMT
Abstract: Data on the distribution, abundance, biomass, and morphological features of Macrobranchium nipponense from 1986-2022 collected in the Republic of Moldova are presented. Maximum length of Macrobrachium nipponense was 117 mm, which is bigger than in other places, maximum weight was 13.8 g. The highest abundance was 12 individuals/m2. M. nipponense dispersed from the place of introduction on a distance of 210 km. The most probable pathways of dispersal are the natural spread in the rivers, and unintentional or intentional introduction by fishponds owners in isolated ponds. Since 1986 M. nipponense population on our territory became tolerant to low winter temperatures of water 0.2°С-2.5 С, this fact also contributed to extension of their area and in the neighboring countries water bodies. PubDate: Sun, 16 Jul 2023 00:00:00 GMT
Abstract: In our study, a total of 33 specimens of three cyprinid fish (Squalius squalus, Phoxinus lumaireul, and Pelasgus minutus) from Belčišta wetland (south-west Macedonia) were subjected to a parasitological investigation, by season. One specimen of Acanthocephalus lucii was found in autumn, in intestines of minnow (Phoxinus lumaireul Linnaeus, 1758). The record of Acanthocephalus lucii in minnow is considered as the first in N. Macedonia. At the same time, minnow represent a new host for this parasite worldwide. PubDate: Sun, 16 Jul 2023 00:00:00 GMT
Abstract: The establishment and spread of invasive alien plant species (IAPS) outside their natural habitats have irreversibly affected native biodiversity in almost every habitat type.For Southern Transylvania, we recognise that there are about 200 adventive plants. From those, we selected 18 IAPS that occupy riparian habitats, the most common, abundant, frequent or with higher impact on habitats and human health. We studied the history of their introduction in the study area, their distribution paths and means of spreading in the wild, their chorology and ecology. PubDate: Sun, 16 Jul 2023 00:00:00 GMT
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