Feeding ecology and coexistence dynamics in a community of fishes in a temperate temporary water body

2021 ◽  
Author(s):  
Muñoz‐Campos M. Tessy ◽  
Valdez‐Carbajal Sharon ◽  
Domínguez‐Castanedo Omar
Keyword(s):  
Feeding Ecology ◽  
Water Body ◽  
Temporary Water

Limnology of a small, temporary water body: the Pond of Santa Rosalia (Sicily, Italy)

2002 ◽  
Vol 28 (4) ◽  
pp. 1673-1677 ◽  
Author(s):  
Luigi Naselli-Flores ◽  
Rossella Barone
Keyword(s):  
Water Body ◽  
Temporary Water ◽  
Santa Rosalia

scholarly journals Tadpoles Inhabiting Natural and Anthropogenic Temporary Water Bodies: Which Are the Environmental Factors that Affect the Diversity of the Assemblages?

2021 ◽  
Vol 9 ◽  
Author(s):  
Claudia Patricia Camacho-Rozo ◽  
Nicolás Urbina-Cardona
Keyword(s):  
Larval Stage ◽  
Water Body ◽  
Environmental Variables ◽  
Life Cycles ◽  
Water Bodies ◽  
Native Forest ◽  
Temporary Water Bodies ◽  
Temporary Water ◽  
Water Accumulation ◽  
Bodies Of Water

The study of tadpole assemblages allows inferring habitat availability and using their occupation as a means of proxy for the effective reproduction of the species, contributing to complementary information for the study of their adult forms. Environmental variables, represented by abiotic variables, vegetation structure, matrix management, and landscape elements, affect species having reproductive modes associated with oviposition and development in bodies of water. In the Orinoco region, most amphibians have complex life cycles and deposit their eggs in highly dynamic lentic bodies of water. Therefore, it is important to know how larval assemblages change over short periods of water accumulation and their relationship with environmental variables. Fieldwork was conducted during 9 weeks of larval sampling, from the beginning of the rainy season. We evaluate changes in anuran assemblages associated with water accumulation in five temporary water bodies of anthropogenic (road or pasture) and natural (savanna or gallery forest) origin. Twenty environmental variables were evaluated and measured in the center of each water body. Of these, nine landscape variables were measured only once during the study. The other eleven variables, representing management practices, physicochemical and structural characteristics of the water bodies, were measured weekly during the 3 months of sampling. We explored differences in the structure and diversity of larval-stage anuran assemblages using statistical tests suitable for small sample sizes (i.e., permutational multivariate analysis of variance PERMANOVA and the distance-based linear modeling DistLM). Of the 14 species found, two species had remarkedly high abundances from which Rhinella humboldti (19% of the total tadpole abundance) was a generalist inhabiting the natural and anthropogenic water bodies, while Leptodactylus insularum (18% of the total tadpole abundance) was a specialist at a natural pond in the savanna. The natural water bodies contained the highest number of species (between 10 and 12) and a total abundance of larvae (between 847 and 485 individuals). In contrast, the anthropogenic water body tracks generated by tractors were only occupied by two species with 50 individuals in total, while the water body generated by the trampling of cattle in pastures had three species with 474 individuals. These three species that inhabited the anthropogenic puddles were also found in the natural ponds and none of the eight species of hylids inhabited the puddles. In each field trip, all the tadpoles were collected from the sampled bodies of water. However, a week later, we found that each of the water bodies had been recolonized by four species (Leptodactylus fuscus, Leptodactylus fragilis, Elachistocleis ovalis, and R. humbolti). The variables with the highest explanatory power on the variation of anuran assemblage structure throughout all the water bodies were height of plants, number of cattle, distance to the nearest native forest edge, distance to an anthropic lentic body of water, distance to a natural lentic body of water, and pH. The bodies of water immersed in the natural cover were more diverse and had a greater degree of spatial and temporal species turnover. Our study calls for the importance of understanding the turnover of larval stage anurans over short periods, associated with water accumulation, in highly dynamic systems such as natural ponds and anthropogenic puddles. The importance of species traits and local processes is also highlighted, from environmental variables to human management activities, in the conservation of amphibian assemblages.

scholarly journals Growth of the annual fish Cynopoecilus melanotaenia (Regan, 1912) based in a temporary water body population in Rio Grande do Sul State, Brazil (Cyprinodontiformes, Rivulidae)

2001 ◽  
Vol 61 (1) ◽  
pp. 117-123 ◽  
Author(s):  
A. ARENZON ◽  
A. C. PERET ◽  
M. B. C. BOHRER
Keyword(s):  
Growth Rate ◽  
Growth Curve ◽  
Water Body ◽  
Rio Grande ◽  
Initial Growth ◽  
Rio Grande Do Sul ◽  
Annual Fish ◽  
Monthly Basis ◽  
Average Maximum ◽  
Temporary Water

The growth of the annual fish Cynopoecilus melanotaenia was studied in its natural environment, in order to obtain information about its biology. A total of 797 specimens of C. melanotaenia were collected on a monthly basis between April 1994 and March 1995 in a temporary water body, located in Rio Grande do Sul State, Brazil. The growth curve in total length suggests, to both sexes, a fast initial growth. Males present a smaller growth rate than females, but they attain a higher average maximum length than the females.

The current state of macrozoobenthos of some small reservoirs the North Kazakhstan region

2020 ◽  
pp. 18-27
Author(s):  
L. Kovalyova
Keyword(s):  
Water Body ◽  
Stable State ◽  
Fish Farming ◽  
Water Bodies ◽  
Ecosystem Integrity ◽  
Small Water ◽  
The North ◽  
Temporary Water ◽  
Structural Variables ◽  
Small Water Bodies

Awareness of ecosystem integrity increases the relevance of collecting information on the biodiversity of water bodies of various types. The episodic nature of studies of small water bodies, along with the high variability of their hydrological, hydrochemical, and morphometric parameters, is the reason for the lack of a full assessment of the state of biota. The current paper provides information on macrozoobenthos of four small water bodies in the North Kazakhstan region. The study revealed 59 representatives with a predominance of insects in the benthofauna. Bottom complexes of shallow temporary water bodies were characterized by a wider spectrum with a greater proportion of insects relative to similar variables for lake Big Koskol. The basis was composed by species adapted to fluctuations of water availability, which led to a relatively stable state of biocenoses against the background of a significant range of quantitative characteristics of zoobenthos. More abundant development of benthic invertebrates highlighted in the lake Bolshoy Koskol (with the dominance of amphipods) and in the temporary water body T26 (with the predominance of insects). By the size of the average annual zoobenthos biomass — 29–31.5 g / m2 — the mentioned above water bodies were classified as highly productive. The level of development of benthic organisms in water bodies T20–T14, where Vermes were the leaders in biomass assessed as increased productive and moderate productive (10.3–3.1 g/m2 respectively). A low faunistic similarity of macrozoobenthos was noted, indicating the originality of the benthic complexes of the studied water body, which once again emphasizes the role of small water body in maintaining the biodiversity of the ecosystem. Relatively high structural variables of benthocenoses indicate a stable ecological state of bottom communities. The abundance of zoobenthos creates the prerequisites for the utilization of the studied and similar water bodies for organizing amateur — sport fishery and the extraction of feed used in aquarium fish farming

Influence of fisheries on the spatio-temporal feeding ecology of gulls along the western Iberian coast

2020 ◽  
Author(s):  
JG Calado ◽  
SN Veríssimo ◽  
VH Paiva ◽  
R Ramos ◽  
PT Vaz ◽  
...  
Keyword(s):  
Feeding Ecology ◽  
Spatio Temporal

Water Body Extraction Research Based on S Band SAR Satellite of HJ-1-C

2016 ◽  
Vol 5 (1) ◽  
pp. 1514-1523
Author(s):  
Liu Liang ◽  
◽  
Zhang Wei ◽  
Jiang Xiaoguang ◽  
Li Xianbin ◽  
...  
Keyword(s):  
Water Body
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