scholarly journals Fish composition in Dong Nai biosphere reserve in Vietnam

2019 ◽  
Vol 18 (06) ◽  
pp. 30-37
Author(s):  
Tam T. Nguyen
Keyword(s):  
Fish Species ◽  
Bird Species ◽  
Fish Fauna ◽  
Biosphere Reserve ◽  
Sampling Period ◽  
Red List ◽  
Amphibian Species ◽  
Endangered Fish ◽  
Rare And Endangered ◽  
High Level

Dong Nai biosphere reserve (DNBR) is well known for its high level of biodiversity and of global meaningful ecosystem. The fauna includes 84 species of mammals belonging to 28 families, 10 orders; 407 bird species; 141 reptile and amphibian species; 175 fish species; 2,017 insect species. The fish fauna of DNBR maintains many rare and endangered fish species recorded in the Vietnam red book and international union for conservation of nature red list (IUCN's red list) such as Scleropages formosus and many other rare fish species, such as Morulius chrysophekadion, Chitala ornata, Probarbus jullieni, Cyclocheilichthys enoplos… This study was aimed to identify fish composition distributed in DNBR. After the sampling period (01/2019 to 08/2019), a total of 114 fish species belonging to 11 orders and 28 families were recorded in DNBR. There were 09 species of fish on the list of rare and endangered fish species of Ministry of Agriculture and Rural Development of Vietnam, 3 species (Chitala ornata, Cosmochilus harmandi and Hemibagus filamentus) on the Vietnam red list book; 01 species (Ompok bimaculatus) on the IUCN's red list, 11 exotic species, 78 commercial species and 13 species having potential as aquarium fish. In addition, the study also found the first presence of a species of phallostethid, Phenacostethus smithi in DNBR

scholarly journals Genetic diversity of the species Leporinus elongatus (Teleostei: Characiformes) in the Canoas Complex - Paranapanema River

2012 ◽  
Vol 10 (4) ◽  
pp. 821-828 ◽  
Author(s):  
Juliano Vilas Boas Ramos ◽  
Leda Maria Koelblinger Sodré ◽  
Mário Luís Orsi ◽  
Fernanda Simões de Almeida
Keyword(s):  
Genetic Diversity ◽  
Genetic Structure ◽  
Fish Species ◽  
Fish Fauna ◽  
Aquatic Organisms ◽  
Reproductive Period ◽  
Migration Behavior ◽  
Migratory Fish ◽  
Low Genetic Diversity ◽  
High Level

Dams constructed along waterways interrupt the dispersion and migration of aquatic organisms, affecting mainly the abundance of migratory fish species. Translocation mechanisms have been constructed at dams aiming to minimize their impact on fish species migration behavior. There is little information available about the effect of the construction of dams on the genetic structure of the Neotropical migratory fish fauna. Therefore, RAPD molecular markers and microsatellites were utilized to evaluate the diversity and genetic structure of the migratory species Leporinus elongatus (piapara) in the Canoas Complex - Paranapanema River - Brazil. Ten groups were sampled in the fish ladders of the hydroelectric dam Canoas I and Canoas II during the reproductive period in three consecutive years. Both markers showed a high level of genetic diversity within these groups. The microsatellite markers demonstrated a loss of heterozygosity and a considerable level of inbreeding in the species. The genetic differentiation found among the groups with both markers utilized is within a range from low to moderate. The data obtained with the parameter of genetic diversity among the groups led to the conclusion that the groups of L. elongatus of the Canoas Complex are structured as a single population composed of sub-populations with low genetic diversity among them. The data on genetic diversity and population structure of L. elongatus are of great importance for the development of the species management and conservation programs in the Canoas Complex, which can also be utilized in aquaculture programs.

Rare and Endangered Fish Species in the Adriatic Sea

2021 ◽  
Author(s):  
Ana Pešić ◽  
Zdravko Ikica ◽  
Mirko Đurović ◽  
Jovana Tomanić ◽  
Stefan Ralević
Keyword(s):  
Fish Species ◽  
Adriatic Sea ◽  
Endangered Fish ◽  
Rare And Endangered

scholarly journals Threats to salmon and endangered fish species in Tysa river basin within trans Carpathian region (review)

2019 ◽  
Vol 21 (91) ◽  
pp. 37-48
Author(s):  
V. P. Terpay
Keyword(s):  
Endangered Species ◽  
Environmental Factors ◽  
River Basin ◽  
Fish Species ◽  
Fish Fauna ◽  
Rate Of Change ◽  
Individual Species ◽  
Endangered Fish ◽  
Carpathian Region ◽  
Toxicological Studies

Establish ways of creating, thoroughly investigate the threats and their level of salmon and endangered fish species Tysa River Basin within Zakarpattia region. Rate of change, diversity, distribution, the proportion of individual species, to the distribution of geographic elements on the principle of zoning and depending on environmental conditions. The study of threats to salmon and endangered species of fish in the river Tysa carried tributaries and in areas watercourse Transcarpathian region using generalized results of hydrological, ichthyological and toxicological studies. Number of species status of populations, evaluated on the basis of documents, monitoring of rivers, ichthyological data during in 2008–2014 years of control catching specialists Department of the use, reproduction of water bio-resources and regulation of fisheries in the Transcarpathian region, the State Administration of Environmental Protection in Zakarpattya region, published and unpublished sources, a survey of local fishermen. Collection and processing of materials performed by conventional methods. Comparison of species composition of fish fauna of the Tysa River Basin within Zakarpattia region on the results of previous studies and the current state of evidence that it has changed significantly. Analysis of data for 1926–2015 years revealed the presence of 77 species, which is 41.5 percent more than the same period in 1926. However, should point to the increase in the number and activities of various threats to salmon and other valuable fish species in our region. Established prolonged human pressure, pollution reduced the number of new European grayling and Trout v 13.4 times. There were 16 species, including salmon, listed in the Red Book of Ukraine. Ceased to meet sturgeon passage. Study threats operation populations of salmon and endangered species gives reason to believe that the level of destruction of natural resources, environmental pollution, depletion of the gene pool is too narrow to study hydro. For the first time a comprehensive assessment of threats to salmon, valuable and endangered local fish Transcarpathia in terms of various specific human impact of their pressure from environmental factors in the past and now. A study of the action of environmental factors and implementation of scientifically based measures to restore fish in close to natural. The results can be used in developing preservation methods, quantitative growth of populations of salmon and endangered species not only in Zakarpattya but also in the Carpathian region, water protection planning activities.

scholarly journals A rapid biodiversity assessment of Lesotho’s first proposed Biosphere Reserve: a case study of Bokong Nature Reserve and Tšehlanyane National Park

Bothalia ◽  
2021 ◽  
Vol 51 (2) ◽  
Author(s):  
Lerato Seleteng-Kose ◽  
Khotso Kobisi ◽  
Ruida Pool-Stanvliet ◽  
Khotso Mohapi
Keyword(s):  
Protected Areas ◽  
National Park ◽  
Nature Reserve ◽  
Rapid Assessment ◽  
Bird Species ◽  
Biosphere Reserve ◽  
Mammal Species ◽  
Amphibian Species ◽  
The Core ◽  
Baseline Information

Background: Two of Lesotho’s protected areas, namely Bokong Nature Reserve and Tšehlanyane National Park, form the core area of the country’s first proposed Biosphere Reserve. Biodiversity is a key aspect needed to justify nomination of a Biosphere Reserve under UNESCO’s Man and the Biosphere Programme. Previously documented biodiversity of the two protected areas is limited in terms of coverage and scope as well as being outdated. The aim of the current study was to conduct a rapid assessment of the biodiversity, including endemism, of the proposed Biosphere Reserve to inform the formal nomination process.Methods: A field survey was undertaken over 112 033 ha in the core, buffer and transition zones of the proposed Biosphere Reserve during which species of both flora and fauna were documented. Purposeful recordings were made during different seasons to incorporate various flowering seasons of the plants, as well as faunal species that may hibernate or migrate seasonally.Results: A total of 380 plant species was recorded, 30 of which are legally protected in the country, 60 endemic to the Drakensberg Mountain Centre, and two species (Aloe polyphylla and Glumicalyx lesuticus) are endemic to Lesotho. The former is the national flower of Lesotho and is under threat due to illegal trade. Sixteen mammal species were recorded, seven of which are legally protected in the country, as well as 53 bird species (including the IUCN Red Listed vulture species, Gyps coprotheres and Gypaetus barbatus). Two fish species were also recorded including Pseudobarbus quathlambae, which is Lesotho’s only known endemic vertebrate species, as well as seven reptile and three amphibian species (two of which are near endemic namely Amietia delalandii and A. vertebralis).Conclusion: This survey has provided valuable baseline information on the biodiversity (particularly regarding the flora and avifauna) of the proposed Biosphere Reserve, which includes two protected areas namely Bokong Nature Reserve and Tšehlanyane National Park. The findings reflect the biodiversity value of the area and will contribute towards its nomination as Lesotho’s first Biosphere Reserve.

scholarly journals MODERN STATUS AND PROSPECTS OF ARTIFICIAL BREEDING OF RARE, EXTINCTING FISH SPECIES FOR CONSERVATION OF BIODIVERSITY AND RESTORATION OF ABUNDANCE IN NATURAL WATER RESERVES OF THE ILE-BALKHASH BASIN

2019 ◽  
pp. 17-30
Author(s):  
Maral Aydynkyzy Zhaparova ◽  
Saule Zhangirovna Asylbekova ◽  
Damir Kayirkeldyevich Zharkenov ◽  
Kuanysh Baibulatovich Isbekov ◽  
Vyacheslav Nickolaevich Tsoy
Keyword(s):  
Fish Species ◽  
Large Scale ◽  
Irrigation System ◽  
Food Competition ◽  
Artificial Reproduction ◽  
Commercial Fish ◽  
Endangered Fish ◽  
The Status ◽  
Acipenser Nudiventris ◽  
Rare And Endangered

This article presents materials on the current state of the native ichthyofauna of the Ile-Balkhash basin, affected by large-scale acclimatization works. Four species of the ichthyofauna composition are listed in the Red Book of Kazakhstan: spike ( Acipenser nudiventris Lovetsky, 1828), Aral barbel ( Barbus brachycephalus brachycephalus Kessler, 1872), Balkhash marinka ( Schizothorax argentatus argentatus Kessler, 1874), Balkhash perch ( Perca schrenkii Kessler, 1874). Due to the ineffectiveness of fish conservation measures, including the prohibition for catching of these fish species, which are not found anywhere except in the Ile-Balkhash basin, it is necessary to impose artificial reproduction, changes in the Fishery Rules and organization of commercial rearing. The work is based on research materials of 2001-2018 conducted in Lake Balkhash, the delta and the lower reaches of the Ile and the Tokraun. The status of spike populations ( Acipenser nudiventris Lovetsky, 1828), Aral barbel ( Barbus brachycephalus brachycephalus Kessler, 1872), Balkhash marinka ( Schizothorax argentatus argentatus Kessler, 1874) and Balkhash perch ( Perca schrenkii Kessler, 1874). The main reasons preventing the maintenance of a high number of endangered species have been established: small area of natural spawning grounds, death of fry in linmeshing fishing gear, large-scale poaching (spike); deterioration of conditions for the natural reproduction, mass mortality of young fishes in the irrigation system (Aral barbel); total elimination and food competition with pike perch (Balkhash marinka, Balkhash perch). The prospects for preservation of rare and endangered fish species have been considered, recommendations for breeding and replenishing populations of species listed in the Red Book have been given: measures for artificial reproduction and prevention of juvenile death, creating favorable conditions for fattening and reducing the pressure of trophic competition. Without taking adequate measures for reducing the anthropogenic impact on natural resources, including ichthyofauna, the number of main commercial fish species will decrease, rare species of fish will die out.

Cryobanking of Amphibian Genetic Recourses in Russia: Past and Future

2019 ◽  
Vol 26 (6) ◽  
pp. 319-324
Author(s):  
Victor K. Uteshev ◽  
Edith N. Gakhova ◽  
Ludmila I. Kramarova ◽  
Natalia V. Shishova ◽  
Svetlana A. Kaurova ◽  
...  
Keyword(s):  
Genetic Material ◽  
Reproductive Technologies ◽  
Cell Biophysics ◽  
Amphibian Species ◽  
Modern Biology ◽  
Rare And Endangered Species ◽  
Long Term Storage ◽  
Current State ◽  
Rare And Endangered ◽  
Academy Of Sciences

In modern biology, a search for efficient and safe ways of long-term storage of animal genomes is vital for the survival of rare and endangered species. To date, the only reliable method of prolonging the preservation of genome is deep freezing of somatic and reproductive cells, including spermatozoa. Here we overview the current state of reproductive technologies and present the cryopresevation strategies of genetic material of selected amphibian species. These strategies were developed at the Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Russia. Cryopreservation could help managing the threatened populations of amphibian species through genome storage and mediate the production of healthy animals from the stored material.

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.

Inhabitat status and gastric contents of invasive fish species and the effect on fish fauna at three reservoirs in National Parks of Korea

2021 ◽  
Vol 33 (2) ◽  
pp. 84-94
Author(s):  
Seung-Chul Park ◽  
Kwang Yeol Lee ◽  
Kwang-Seek Choi ◽  
Mee-Sook Han ◽  
Myeong-Hun Ko
Keyword(s):  
National Parks ◽  
Fish Species ◽  
Fish Fauna ◽  
Invasive Fish ◽  
Gastric Contents

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.

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