Perfluoroalkyl substances associations with morphometric health indices in three fish species from differentially contaminated water bodies in Southeastern Brazil

2020 ◽  
pp. 101198
Author(s):  
Rachel Ann Hauser-Davis ◽  
Isabella C. Bordon ◽  
Kurunthachalam Kannan ◽  
Isabel Moreira ◽  
Natalia Quinete
Keyword(s):  
Fish Species ◽  
Water Bodies ◽  
Perfluoroalkyl Substances ◽  
Southeastern Brazil ◽  
Contaminated Water ◽  
Health Indices

scholarly journals Trophic ecology of Lontra longicaudis (Carnivora, Mustelidae) in lotic and semilotic environments in southeastern Brazil

2012 ◽  
Vol 102 (3) ◽  
pp. 261-268 ◽  
Author(s):  
Lívia B. Santos ◽  
Nelio R. dos Reis ◽  
Mário L. Orsi
Keyword(s):  
Fish Species ◽  
Food Habits ◽  
Trophic Ecology ◽  
Hydroelectric Power Plant ◽  
Southeastern Brazil ◽  
Aquatic Animal ◽  
Hydroelectric Power ◽  
Exotic Fish ◽  
Lotic Environment ◽  
Lontra Longicaudis

Lontra longicaudis (Olfers, 1818) (Carnivora, Mustelidae) is a semi-aquatic animal spread through the Central and South America, except in Chile. The implantation of a hydroelectric power plant along a river alters the dynamics of the watercourse, transforming a lotic environment into a lentic or semilotic one, what can damage the otter's feeding. From April 2008 to March 2009 we analysed the otter's food habits in lotic (streamlet) and semilotic (hydroelectric reservoir) environments of Paranapanema Valley, in southeastern Brazil. Aiming to compare the otter's diet of these two environments, we analyzed statistically the frequency of occurrence of main items in the scats. Fishes represent the base of the diet both in the reservoir and in the streamlet and, despite of the total otter's diet showing up similarities in the two environments, the results evidenced modifications on the fish species consumed between them. In the reservoir the otters ate more exotic fish Oreochromis niloticus (Linnaeus, 1758) probably because it is an easy capture prey in this place. The fact that the otters get established and feed in the reservoir doesn't mean that this structure is benefic to the species because the food supplied for it consists mainly of exotic fish species.

scholarly journals Habitat partitioning, habits and convergence among coastal nektonic fish species from the São Sebastião Channel, southeastern Brazil

2010 ◽  
Vol 8 (2) ◽  
pp. 299-310 ◽  
Author(s):  
Fernando Zaniolo Gibran
Keyword(s):  
Habitat Use ◽  
Fish Species ◽  
Body Shape ◽  
Scientific Literature ◽  
Morphological Diversity ◽  
The Body ◽  
Divergent Evolution ◽  
Southeastern Brazil ◽  
Ecological Performance ◽  
Intimate Link

Based on a fish survey and preliminary underwater observations, 17 "morphotypes" were identified that characterize the morphological diversity found within 27 nektonic fish species sampled at São Sebastião Channel. Such "morphotypes" were studied using an ecomorphological approach, with the intention to investigate similarities and differences in shape and habits. Underwater field observations were also performed, to verify if the lifestyle of these species, such as vertical occupation of the water column and the habitat use, are in accordance with their distribution in the morphospace. The results, complemented with data from scientific literature on the taxonomy and phylogenies of these species, allowed discussing some of the typical cases of convergent and divergent evolution. Some of the ecomorphological clusters had no phylogenetic support although this is probably due to the environmental conditions in which theirs members have evolved. The body shape and fins positions of a fish clearly influence its ecological performance and habitat use, corroborating the ecomorphological hypothesis on the intimate link between phenotype and ecology.

scholarly journals Comparing on site human and video counts at Igarapava fish ladder, south eastern Brazil

2006 ◽  
Vol 4 (2) ◽  
pp. 291-294 ◽  
Author(s):  
Mark D. Bowen ◽  
Simone Marques ◽  
Luiz G. M. Silva ◽  
Volney Vono ◽  
Hugo P. Godinho
Keyword(s):  
Fish Species ◽  
Accurate Method ◽  
Fish Passage ◽  
Southeastern Brazil ◽  
Human Observer ◽  
Full Spectrum ◽  
Prochilodus Lineatus ◽  
Number Of Species ◽  
Fish Ladder ◽  
Number Of Individuals

On site human observations and video images were collected and compared at the window of the Igarapava Dam fish ladder (IDFL), rio Grande , Southeastern Brazil, between March 1st and June 30th, 2004. We conducted four experiments with two humans (Observer 1 and Observer 2) observing fish passage in the IDFL window while a Sony 3CCD video camera (Observer 3) recorded fish passage at the same time. Experiments, each one hour in length, were distributed throughout the diel cycle using full spectrum lights. We identified fish species, the number of individuals for each species, and the real time that they passed. Counts from each human observer were compared to the video counts. The fish species most commonly observed in the window were - curimba (Prochilodus lineatus), mandi-amarelo (Pimelodus maculatus), piau-três-pintas (Leporinus friderici) and ferreirinha (Leporinus octofasciatus). The number of species and individuals were indistinguishable for the three observers. But, the number of species and individuals were significantly different among experiments. Thus, the three observers register the same number of species and count the same number of individuals even when these two response variables differ significantly among experiments. Based on these results, we concluded that the video count was an accurate method to assess fish passage at the IDFL.

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

Accumulation of perfluoroalkyl substances in lysimeter-grown rice in Japan using tap water and simulated contaminated water

Chemosphere ◽  
2019 ◽  
Vol 231 ◽  
pp. 502-509 ◽  
Author(s):  
Eriko Yamazaki ◽  
Sachi Taniyasu ◽  
Kosuke Noborio ◽  
Heesoo Eun ◽  
Pooja Thaker ◽  
...  
Keyword(s):  
Tap Water ◽  
Perfluoroalkyl Substances ◽  
Contaminated Water

scholarly journals Fish Diversity of River Siyom of Arunachal Pradesh India: A Case Study

Our Nature ◽  
1970 ◽  
Vol 8 (1) ◽  
pp. 164-169
Author(s):  
K. Bagra ◽  
D.N. Das
Keyword(s):  
Fish Species ◽  
Water Bodies ◽  
Anthropogenic Factors ◽  
Fish Diversity ◽  
Arunachal Pradesh ◽  
Fishery Resources ◽  
The Status ◽  
Social Restriction ◽  
Destructive Fishing

Arunachal Pradesh being rich in fishery resources biophysically, the status of the fish diversity is not known from all the water bodies. A case study was undertaken in the river Siyom (28°11′25′′-28°10′52′′N and 94°45′17′′-97°47′51′′E) of West Siang district, Arunachal Pradesh from 2002 to 2004 with the fragmentary work till 2007. For the purpose, sampling of fish was done from the river time to time using local contraption along with modern nets. A total of 44 species of fishes belongs to 9 families were identified. Fishes of family Cyprinidae were found to be dominant followed by Balitoridae. Some of the fish species were found very rare in the river, which may be due to various anthropogenic factors. Therefore, in addition to social restriction on community fishing some awareness measures need to be taken to prevent the destructive fishing activities in the river.DOI: 10.3126/on.v8i1.4324

scholarly journals Environmental Impacts of an Old Mine Tailings Deposit – Metal Concentrations and Water Pathways

1987 ◽  
Vol 18 (4-5) ◽  
pp. 301-312 ◽  
Author(s):  
P. Sandén ◽  
S. Karlsson ◽  
U. Lohm
Keyword(s):  
Environmental Impacts ◽  
Mine Tailings ◽  
Water Bodies ◽  
Contaminated Water ◽  
Surrounding Area ◽  
Metal Concentrations ◽  
Principal Source ◽  
Zinc Cadmium ◽  
Copper Zinc ◽  
Cadmium And Lead

Variations in metal concentrations in a heavily polluted stream receiving acidic leachates from an old mine tailings deposit are analysed from a hydrological perspective. From an extensive data material, collected during three years, the variations in concentrations of four metals (copper, zinc, cadmium and lead) are discussed. The deposit is the principal source for these metals in the watershed. The variation in metal concentrations in the vicinity of the deposit can to a large extent be explained by simple dilution of contaminated water with uncontaminated water from the surrounding area. Further downstream the deposit, other processes become increasingly important for the metal concentrations in the water bodies.

scholarly journals Effects of extended absence of flooding on the fish assemblages of three floodplain lagoons in the middle São Francisco River, Brazil

2006 ◽  
Vol 4 (4) ◽  
pp. 427-433 ◽  
Author(s):  
Paulo dos Santos Pompeu ◽  
Hugo Pereira Godinho
Keyword(s):  
Fish Species ◽  
Fish Assemblages ◽  
Local Extinction ◽  
Management Tool ◽  
Southeastern Brazil ◽  
Water Volume ◽  
Sao Francisco River ◽  
São Francisco River ◽  
Large Water ◽  
To Receive

In the Neotropics, a large proportion of fish communities of large rivers use floodplain as habitats for feeding, reproduction, and refuge. An evaluation was made of the effects of extended dry periods on the species richness, abundance and local extinction of fish species in three marginal lagoons in the middle São Francisco River, southeastern Brazil. The studied lagoons fail to receive river floods during the study period (1994-1996). A gradual reduction in richness and abundance was observed in all lagoons. Migratory fish species had the highest probability to become extinct in the two lagoons that remained with large water volume. Species tolerant to low levels of dissolved oxygen had the lowest probability of local extinction in the lagoon showing an abrupt reduction in water volume. Similar changes to those observed in the current study are likely to occur in the floodplains if dams would be constructed in this segment of the river. Adequate water releases from Três Marias reservoir, located upstream, should be considered as a management tool for producing episodic flooding on the marginal lagoons of the region.

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