The state of the reproductive system of several fish species from water bodies polluted with radionuclides during the Chernobyl catastrophe

2007 ◽  
Vol 47 (5) ◽  
pp. 366-384 ◽  
Author(s):  
N. V. Belova ◽  
N. G. Emel’yanova ◽  
A. P. Makeeva ◽  
I. N. Ryabov
Keyword(s):  
Fish Species ◽  
Reproductive System ◽  
The State ◽  
Water Bodies

scholarly journals Freshwater temperature in the state of Rio Grande do Sul, Southern Brazil, and its implication for fish culture

2008 ◽  
Vol 6 (2) ◽  
pp. 275-281 ◽  
Author(s):  
Luciano de Oliveira Garcia ◽  
Carlos Eduardo Copatti ◽  
Flávio Wachholz ◽  
Waterloo Pereira Filho ◽  
Bernardo Baldisserotto
Keyword(s):  
Water Temperature ◽  
Fish Species ◽  
Native Species ◽  
Amazon Basin ◽  
Rio Grande ◽  
The State ◽  
Tropical Species ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Lower Growth

In this study we verified data of water temperatures collected by CORSAN-RS from 1996 to 2004 in several cities of the state of Rio Grande do Sul, southern Brazil, and analyzed the possibility of raising the most cultivated fish species in Brazil. The water temperature from 1996 to 2004 was 16 to 28ºC in summer, 17 to 23ºC in fall, 14 to 17ºC (down to 9ºC in the coldest months) in winter and 14 to 21ºC in spring. Native species of this state, such as silver catfish (Rhamdia quelen), traíra (Hoplias malabaricus), dorado (Salminus brasiliensis), pintado (Pimelodus maculatus), as well as carps (family Cyprinidae), are resistant to the low winter temperatures. These species have a lower growth rate in coldest months (winter/spring) but a good development in warmer months (summer/fall), reaching a satisfactory performance throughout the year. In the periods of more intense cold, mortality of some introduced species, such as surubim from Amazon Basin (Pseudoplatystoma sp.), pirapitinga (Piaractus brachypomus), pirarucu (Arapaimas gigas), pacu (Piaractus mesopotamicus), tambaqui (Colossoma macropomum) and Nile tilapia (Oreochromis niloticus) may occur. In addition, as most tropical species have a thermal range for growth and reproduction between 20 to 28ºC, some species may have poor development even in fall. Therefore, water temperature in this state should be considered in the choice of fish species to be cultivated.

scholarly journals The first evidence about the algae flora of the reservoirs of the “Aschisayskaya Steppe” plot (State Nature Reserve “Orenburgsky”)

2021 ◽  
Vol 38 ◽  
pp. 00042
Author(s):  
Marina E. Ignatenko ◽  
Tatyana N. Yatsenko-Stepanova ◽  
Olga G. Kalmykova
Keyword(s):  
New Species ◽  
Rare Species ◽  
Nature Reserve ◽  
The State ◽  
Water Bodies ◽  
Current Understanding ◽  
Orenburg Region ◽  
State Nature Reserve ◽  
State Nature

The first data about the algae flora of the water bodies of the “Aschisayskaya Steppe” plot of the State Nature Reserve “Orenburgsky” are presented. 217 species and intraspecies taxa of microalgae belonging to the phyla Chlorophyta, Euglenozoa, Bacillariophyta, Ochrophyta, Streptophyta, Miozoa and Cyanobacteria were found in five reservoirs of the plot. New species for the territory of the Orenburg Region, as well as rare species for Russia are noted, their characteristics and micrographs are given. The obtained data expands the current understanding of the range of the identified taxa.

scholarly journals The impact of economic activity on the ecological state of the water reservoirs of Ishim

2018 ◽  
Vol 7 (3) ◽  
pp. 98-103
Author(s):  
Natalia Evgenievna Suppes
Keyword(s):  
Private Sector ◽  
Coastal Zone ◽  
Visual Assessment ◽  
Organic Pollution ◽  
The State ◽  
Water Bodies ◽  
Economic Activities ◽  
Water Reservoirs ◽  
Anthropogenic Pressures ◽  
The Impact

This article analyzes the problem of the state of the water bodies in Ishim by anthropogenic pressures. The study shows that the water reservoirs are negatively influenced by the economic activities of the population. The author defines their main directions: industrial wastewater discharge to the city water bodies, construction and operation of engineering constructions, activity in the private sector. To assess the state of the water bodies the author uses the results of the visual assessment of the state of the riverbeds and their coastal zone, the organoleptic water indicators (turbidity, color and smell), the analysis of the hydrobiological studies (determination of the degree of saprobity of the water bodies as indicators ciliated infusoria). The study showed the satisfactory condition of all the water reservoirs and the non-critical impact. As the enterprises for light manufacturing and food industries in Ishim are not sources of chemical, organic and other pollution the visual assessment didn't reveal significant deformations of the riverbeds and any changes in the coastal zone. The impact of the private sector is local and not the significant cause of organic pollution.

scholarly journals Modern composition and distribution of alien fish species in the water bodies of the Krasnoyarsk Territory

2016 ◽  
Vol 7 (4) ◽  
pp. 324-332 ◽  
Author(s):  
I. V. Zuev ◽  
A. A. Vyshegorodtsev ◽  
S. M. Chuprov ◽  
D. V. Zlotnik
Keyword(s):  
Fish Species ◽  
Water Bodies ◽  
Alien Fish ◽  
Alien Fish Species

Richness and composition of the Cladocera community (Crustacea: Branchiopoda) from the Maranhão State, Northeast Brazil

Zootaxa ◽  
2021 ◽  
Vol 5081 (3) ◽  
pp. 420-432
Author(s):  
ARIELLY S. SANTOS ◽  
FRANCISCO DIOGO R. SOUSA ◽  
LOURDES M. A. ELMOOR-LOUREIRO ◽  
DANIEL S. ANDRADE ◽  
RICCARDO MUGNAI
Keyword(s):  
New Species ◽  
New Record ◽  
The State ◽  
Water Bodies ◽  
Northeast Brazil ◽  
Hydrographic Regions

The state of Maranhão, northeast Brazil, has four different biomes. The water bodies in Maranhão belongs to three hydrographic regions. Thus, the state potentially contributes to a high biodiversity. Despite that, in the state, the study of cladocerans can still be considered incipient. This work aims to summarize the list of species of cladocerans in the state of Maranhão, including the results of new fauna surveys. We report ten new species records for the state, two species represent the new record of the genus Pseudosida Herrick, 1884. The results found point to the occurrence of 82 valid taxa in the state of Maranhão.  

Fertility and ovarian reserve (Сlinical lecture)

2018 ◽  
pp. 10-13
Author(s):  
V.I. Pyrohova ◽  
◽  
M.T. Ferents ◽  
Keyword(s):  
Key Words ◽  
Ovarian Reserve ◽  
Reproductive System ◽  
Reproductive Function ◽  
The State ◽  
Chronic Endometritis ◽  
National Medical ◽  
Medical University ◽  
The Relationship

Lviv national medical University named Danylo Galitsky The article considers the selected aspects of fertility of women in modern conditions, the relationship between the ovarian reserve, the state of the endometrium and the ability to realize the reproductive function. Key words: fertility, ovarian reserve, endometrium, chronic endometritis, reproductive system.

scholarly journals Associations between fish assemblage and riparian vegetation in the Corumbataí River Basin (SP)

2007 ◽  
Vol 67 (2) ◽  
pp. 191-195 ◽  
Author(s):  
M. Cetra ◽  
M. Petrere JR.
Keyword(s):  
Species Richness ◽  
River Basin ◽  
Fish Species ◽  
Sugar Cane ◽  
Fish Assemblage ◽  
Vegetation Cover ◽  
Riparian Vegetation ◽  
Riparian Forest ◽  
The State ◽  
Multivariate Techniques

This work intends to examine if there are associations between fish species and the state of conservation of the riparian forest in the Corumbataí River Basin. Four main rivers were chosen for this study with three sites on each. Collections were carried out from March to June and from September to December 2001. Multivariate techniques were applied to determine the correlation between species richness and the order of the rivers, preservation level of the riparian forest, shade level, presence or absence of Eucalyptus, sugar cane and pastures, and surrounding declivity stability of the sites. Species richness was highest at locations with greater vegetation cover and preserved riparian forest.

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