scholarly journals Water Quality and Conservation Status of Fish Fauna of Main Outfall Drain, Al-Diwaniya City, Iraq

2021 ◽  
Vol 910 (1) ◽  
pp. 012062
Author(s):  
Kadhim J.L. Al-Zaidy
Keyword(s):  
Water Quality ◽  
Freshwater Fish ◽  
Fish Species ◽  
Lower Risk ◽  
Fish Community ◽  
Conservation Status ◽  
Fish Fauna ◽  
Fish Diversity ◽  
Ecological Indices ◽  
The Third

Abstract Freshwater fish diversity, abundance, the ecological indices, and water quality from Main Outfall Drain (MOD) in Al-Diwaniya City/middle Iraq were studied monthly from January to December 2017 in two sites. The present study has shown that the third river (MOD) supported 15 fish species belonging to 7 families. As far as biodiversity status in fish community (IUCN-2019) is concerned, out of 15 species, eleven fish species are categorized into Lower risk least concern (LC or LR/lc), four Vulnerable (VU). Eight species were sensitive to salinity; seven species were tolerance. The results were concluded that the properties of water were tolerable for the fish community. Ultimately, it can be concluded that the sector of MOD supported the fish community. But it needs constant monitoring for the conserve and development of the diversity and the case of the healthy fish.

scholarly journals Freshwater fish diversity and its conservation status in different water bodies of Nepal

2020 ◽  
Vol 8 ◽  
pp. 39-52
Author(s):  
Kumar Khatri ◽  
Bibhuti Ranjan Jha ◽  
Smriti Gurung ◽  
Udhab Raj Khadka
Keyword(s):  
Freshwater Fish ◽  
Fish Species ◽  
Conservation Status ◽  
Fish Fauna ◽  
Iucn Red List ◽  
Current Status ◽  
Fish Diversity ◽  
Exotic Fish ◽  
Spatio Temporal ◽  
Taxonomic Studies

This review describes the current status of freshwater fish diversity, their IUCN categories and threats to fish fauna in Nepal. The freshwater systems of the country are known to harbor over 220 fish species, thereby indicating a rich ichthyofaunal diversity. However, this number varies from author to author. Cyprinidae is the most common and dominant taxon. A total of 15 endemic and 15 exotic fish species have been reported. A total of 34 fish species have been listed under the IUCN Red List threatened categories. Major threats to fish include damming and pollution. Fish diversity studies have mainly focused on inventories only. Studies focusing on river longitudinal aspects, the inclusion of spatio-temporal aspects, and rigorous taxonomic studies combined with genetic studies are crucial to develop strategic conservation measures of fish fauna in Nepal.

scholarly journals Diversity, potentiality, and conservation status of fish fauna in the upper Mahakam’s tributaries, East Kalimantan

2019 ◽  
Vol 19 (3) ◽  
pp. 391
Author(s):  
Jusmaldi Jusmaldi ◽  
Nova Hariani ◽  
Norbeta Doq
Keyword(s):  
Fish Species ◽  
Diversity Index ◽  
Conservation Status ◽  
Fish Fauna ◽  
Iucn Red List ◽  
Fish Diversity ◽  
East Kalimantan ◽  
Wiener Diversity Index ◽  
Data Deficient ◽  
Almost All

Diversity, potentiality and conservation status of fish fauna in upper Mahakam’s tributaries of east Kalimantan is unknown. The purposes of this study were to analysis species diversity, determine potentiality and conservation status of fish fauna in upper Mahakam’s tributaries, east Kalimantan. Fish sampling with purposive method was conducted in four tributaries, i.e Tepai River, Pahangai River, Danum Parai River, and Meraseh River for one month. Fishes were collected by several gears type. The results of this research showed that the total number of fish caught was 820 individuals; consist of 26 species, 7 families, and 4 orders. The Cyprinidae was the most dominant family found in all tributaries. The Shannon-Wiener diversity index in four tributaries were varied and ranging from 1.749-2.087. The highest fish diversity was recorded at Maraseh River followed by Pahangai River, Danum Parai River, and Tepai River. The low fish diversity was discovered at Tepai River may be due to differences in substrate type, water velocity, and water depth as compared to the Maraseh River, Pahangai River, Danum Parai River. The fish species similarity coefficient between four tributaries ranged from 0.606-0.842 and the highest dissimilarity was found between Tepai River and Danum Parai River. Almost all fishes categorized as edible fish for local consumption. Syncrossus hymenophysa and Gastromyzon lepidogaster have potential as ornamental fish. Regarding IUCN red list status, six fish species were grouped into least concern status, two species as data deficient, one species as near threatened, one species as endangered species and 16 other species were not on the list.

scholarly journals Effective reassessments of freshwater fish species: a case study in a Mediterranean peninsula

Hydrobiologia ◽  
2021 ◽  
Author(s):  
Imanol Miqueleiz ◽  
Rafael Miranda ◽  
Arturo H. Ariño ◽  
Tommaso Cancellario
Keyword(s):  
Iberian Peninsula ◽  
Freshwater Fish ◽  
Fish Species ◽  
Conservation Status ◽  
Fish Fauna ◽  
Iucn Red List ◽  
Molecular Techniques ◽  
Red Lists ◽  
Freshwater Fish Species ◽  
Freshwater Fish Fauna

AbstractIUCN Red List assessments for fish species can quickly become out of date. In recent years molecular techniques have added new ways of obtaining information about species distribution or populations. In this work, we propose the Iberian Peninsula as an example of reassessment needs in its endangered freshwater fish fauna. We compiled the list of freshwater fish species occurring in continental Spain and Portugal and examined their conservation status in global and national Red Lists. We retrieved records for these species in the Iberian Peninsula and calculated several biological indexes (richness and vulnerability indexes). Our results showed a patchy data coverage of fish records in the Iberian Peninsula. Threat levels reported within national Red Lists are higher than their global counterparts, reinforcing the necessity of improving and maintaining up to date national Red Lists. Iberian watersheds have moderate levels of threat and high levels of out of date assessments. The nearly fully completed genetic databases for Iberian fish species, along with the limited distribution of many endangered species and the necessity of update their assessments constitute an excellent opportunity to use data obtained from eDNA to improve species monitoring practices and their conservation status.

scholarly journals Fish diversity of Haryana and its conservation status

2016 ◽  
Vol 8 (2) ◽  
pp. 1022-1027
Author(s):  
Anita Bhatnagar ◽  
Abhay Singh Yadav ◽  
Neeru Neeru
Keyword(s):  
Fish Species ◽  
Lower Risk ◽  
Global Climate ◽  
Conservation Status ◽  
Climate Change Impacts ◽  
Habitat Destruction ◽  
Fish Diversity ◽  
Species Introduction ◽  
Fish Biodiversity ◽  
River Yamuna

The present study on fish biodiversity of Haryana state was carried out during 2011 to 2014. A total number of 59 fish species inhabits the freshwaters of this state. Maximum number of fish species belonged to the order Cypriniformes (35) followed by the order Siluriformes (12) and Perciformes (8). The orders Beloniformes,Clupeiformes, Osteoglossiformes and Synbranchiformes were represented by only one species each. Out of 59 fish species, 2 are endangered, 11 vulnerable, 28 have lower risk of threat, 8 exotic and 4 fish species have lower risk least concern. The conservation status of six fish species has not been evaluated so far, hence they cannot be included in any of the IUCN categories at this moment. Family Cyprinidae alone contributed 32 fish species followed by Bagridae family. Fish species Parapsilorhynchus discophorus was observed for the first time in Haryana waters. This species is the native of Kaveri river basin, the occurrence of this species in river Yamuna may be attributed to some religious activity of people. A decline in fish diversity has been recorded from 82 species in 2004 to 59 species in the present study in the year 2014. The main causes for decrease in fish biodiversity are habitat destruction and fragmentation, changing practices of land use, exotic species introduction, fishing, irrigation needs, pollution and global climate change impacts. It is essential to prevent further decline of fish resources by devising all possible measures of conservation and rehabilitation.

scholarly journals Advancing improvement in riverine water quality caused a non-native fish species invasion and native fish fauna recovery

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Łukasz Głowacki ◽  
Andrzej Kruk ◽  
Tadeusz Penczak
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Native Species ◽  
Interference Competition ◽  
Fish Fauna ◽  
Species Traits ◽  
Native Fish ◽  
Biological Degradation ◽  
Species Invasion ◽  
Prussian Carp

AbstractThe knowledge of biotic and abiotic drivers that put non-native invasive fishes at a disadvantage to native ones is necessary for suppressing invasions, but the knowledge is scarce, particularly when abiotic changes are fast. In this study, we increased this knowledge by an analysis of the biomass of most harmful Prussian carp Carassius gibelio in a river reviving from biological degradation. The species' invasion followed by the invasion's reversal occurred over only two decades and were documented by frequent monitoring of fish biomass and water quality. An initial moderate improvement in water quality was an environmental filter that enabled Prussian carp’s invasion but prevented the expansion of other species. A later substantial improvement stimulated native species’ colonization of the river, and made one rheophil, ide Leuciscus idus, a significant Prussian carp’s replacer. The redundancy analysis (RDA) of the dependence of changes in the biomass of fish species on water quality factors indicated that Prussian carp and ide responded in a significantly opposite way to changes in water quality in the river over the study period. However, the dependence of Prussian carp biomass on ide biomass, as indicated by regression analysis and analysis of species traits, suggests that the ecomorphological similarity of both species might have produced interference competition that contributed to Prussian carp’s decline.

scholarly journals Present and past status of fish fauna of river Basantar, an important tributary of the river Ravi, in Samba district, Jammu (J&K)

2012 ◽  
Vol 4 (1) ◽  
pp. 123-126 ◽  
Author(s):  
Arti Sharma ◽  
S. P. S. Dutta
Keyword(s):  
Environmental Factors ◽  
Fish Species ◽  
Fish Fauna ◽  
Fish Diversity ◽  
Anthropogenic Pressure

Icthyofaunal study of river Basantar, an important tributary of river Ravi in Samba district, Jammu (J&K) has revealed the existence of 35 fish species belonging to 5 orders, 10 families and 25 genera. There is dominance of Cypriniformes (18 spp.) followed by Siluriformes (10 spp.), Perciformes (4 spp.), Synbrachiformes (2 spp.) and Osteoglossiformes (1 sps.). Present record of 35 fish species when compared with the earlier report of 59 fish species reveals a decline in fish diversity and is caused by environmental factors and anthropogenic pressure.

scholarly journals Fish Diversity in Huchharayanakere, Shikaripura, Shivamogga District, Karnataka, India

2016 ◽  
Vol 15 (4) ◽  
pp. 11-22
Author(s):  
H M Ashashree ◽  
H A Sayeswara ◽  
K L Naik ◽  
N Kumara Swamy ◽  
Nafeesa Begum
Keyword(s):  
Water Quality ◽  
Fish Fauna ◽  
Single Species ◽  
Economic Importance ◽  
Fish Diversity ◽  
Fish Health ◽  
Chemical Condition ◽  
Physico Chemical ◽  
The Family ◽  
Faunal Diversity

Fresh water wetlands are fragile ecosystems, which are fast deterioring and shrinking due to manmade activities. The fish composition of Huchharayanakere of Shikaripura was studied for a period of twelve months from January to December 2015. The icthyo-faunal diversity of this pond confirmed the occurrence of 13 species of fishes belonging to 5 families. The family Cyprinidae represented by 9 species. Families Anabantidae, Bagridae, Clupeidae and Notopteridae were represented by only a single species. Simultaneously the physico-chemical condition of the water body revealed that water quality is suitable for fish culture. The study of fish fauna of an aquatic body is useful for planning of fisheries development. The pond needs proper management and utilization of this fish wealth and sustainable steps to monitor and conserve the fish health. The present study revealed that Huchharayanakere of Shikaripura harbors wide varieties of fish with economic importance in local and global trade. The study will provide future strategies for development and fish conservation.

Estuarine characteristics, water quality and heavy metal contamination as determinants of fish species composition in intermittently open estuaries

2017 ◽  
Vol 68 (5) ◽  
pp. 941 ◽  
Author(s):  
K. O'Mara ◽  
A. Miskiewicz ◽  
M. Y. L. Wong
Keyword(s):  
Water Quality ◽  
Species Composition ◽  
Fish Species ◽  
Metal Contamination ◽  
Fish Assemblages ◽  
Anthropogenic Activities ◽  
Estuarine Fish ◽  
Fish Diversity ◽  
Eastern Australia ◽  
Fish Species Composition

Estuaries are critical aquatic environments that are used by many fish during their life cycle. However, estuaries often suffer from poor water quality as a result of anthropogenic activities. Fish diversity studies in estuaries are common, although few have examined whether correlations exist between water quality, metal contamination and fish assemblages. In the present study we investigated the effect of abiotic conditions, heavy metals and estuary characteristics on the abundance, diversity and composition of fish in four intermittently open estuaries along the Illawarra coast of south-eastern Australia. The heterogeneity of environmental conditions was reflected in the fish assemblages in each estuary. Environmental variables predicted fish species composition, and estuaries in particularly poor condition contained few species (estuarine residents) in high abundance, indicating their ability to acclimatise and survive in conditions that are hostile to other species. Overall, these findings demonstrate that estuarine fish assemblages may be useful indicators of estuary condition and reveal the importance of managing anthropogenic activities in the surrounding catchment to improve water quality so that biodiversity of fish can be restored in these estuarine environments.

scholarly journals Freshwater fish diversity in three tributary streams in Serayu Basin, Central Java, Indonesia

2020 ◽  
Vol 21 (12) ◽  
Author(s):  
Suhestri Suryaningsih ◽  
Dian Bhagawati ◽  
Sri Sukmaningrum ◽  
Sugiharto Sugiharto ◽  
Ayu ratna I gusti agung
Keyword(s):  
Freshwater Fish ◽  
Fish Species ◽  
Fish Diversity ◽  
Random Group ◽  
Freshwater Fish Species ◽  
Central Java ◽  
Gill Net ◽  
Southern Central ◽  
Temporal And Spatial ◽  
Fish Species Diversity

Abstract. Suryaningsih S, Bhagawati D, Sukmaningrum S, Sugiharto, Puspitasari IGAAR. 2020. Freshwater fish diversity in three tributary streams in Serayu Basin, Central Java, Indonesia. Biodiversitas 21: 5811-5817. Determining the diversity of freshwater fish species in Central Java, Indonesia has been confounded by temporal and spatial limitations in past studies. The Serayu Basin is a large watershed in Central Java that is believed to have high freshwater fish diversity. We aimed to determine the diversity and community structure of freshwater fish species in three tributaries of the Serayu, elucidate the factors influencing this diversity, and determine the extent to which these tributaries contribute to the total freshwater fish species richness for southwest Central Java. We conducted gill net sampling from May to August 2018 on the Tulis, Mrawu, and Kali Sapi Rivers located at Banjanegara district Sampling followed a random group technique in upstream, midstream, and downstream river sections of each tributary. In total, we observed 21 freshwater fish species. Broadly, fish species diversity was relatively low in the study area, and water temperature and dissolved oxygen were important in maintaining fish diversity. These three tributaries house 27–46% of the freshwater fish species reported for southern Central Java.

scholarly journals TO THE FAUNA OF BIVALVE MOLLUSCS OF THE DAGESTAN COAST OF THE CASPIAN SEA

2018 ◽  
Vol 13 (2) ◽  
pp. 9-21 ◽  
Author(s):  
Marina V. Khlopkova ◽  
Magomedzagid K. Guseynov ◽  
Kais M. Guseynov ◽  
Aysha Sh. Gasanova
Keyword(s):  
Fish Species ◽  
Caspian Sea ◽  
Food Resource ◽  
Fish Fauna ◽  
Bivalve Mollusks ◽  
The Caspian Sea ◽  
Commercial Fish ◽  
Main Food ◽  
The Third ◽  
The Individual

Aim. The aim is to study bivalve mollusks of the Dagestan zone of the Caspian Sea as the main feed for all the fish fauna in modern conditions. Material and methods. For the study, are used the materials received in the period of spring-autumn 2015-2017. The collection of material and data processing was carried out according to traditional methods. For the study of nutrition, 30 specimens of each fish species were opened. Such feeding characteristics as the composition of food and the ratio of feed components are given. In the study of shells of bivalve mollusks, the following morphological parameters were measured: length (L), height (H), convexity (Con.), in accordance with the most common measurement technique. Were calculated the allometric coefficients for each year of the life of the individual: the coefficient of elongation (the ratio of height to length), the convexity coefficient (the ratio of convexity to the height). Results. At all periods of the level regime, mollusks are the main food resource of the Caspian Sea. At present they form the basis of the food bolus of the investigated commercial fish species. In June 2017, 25 km north of the city of Makhachkala, after a storm, we found 109 shells of Corbicula fluminalis (O.F. Müller, 1774) (a new invasive atypical species for the investigated aquatorium), the third part of which still had the remains of the ligament. The species was the third most abundant and represented by specimens of all age stages. Conclusions. At present, there are fluctuations in the biomass of the autocolonizers Cerastoderma lamarcki (Reeve), Mytilaster lineatus (Gmelin) and Abra ovata (Philippi), as well as a significant reduction in the range of autochthonous Caspian species, mainly Didacna Eichw. Bivalve mollusks are the main food resource of the Caspian Sea. In conditions of increasing anthropogenic load, further detailed studies of the Caspian's malacofauna are needed.

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