Raisa Vázquez-Capote’s scientific contributions

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Publications (2)


Figure 1. Map of Cuba showing the Camagüey province and its capital with the same name (*).
Figure 2. Ordination diagram of the canonical correspondence analysis performed in the Tínima River with the 10 classes shell height of Physella acuta (o) and abiotic factors (-). The shell height: 1 (<3.9 mm), 2 (4-4.9 mm), 3 (5-5.9 mm), 4 (6-6.9 mm), 5 (7-7.9 mm), 6 (8-8.9 mm), 7 (9-9.9 mm), 8 (10-10.9 mm), 9 (11-11.9 mm) y 12 (>12 mm). Abiotics ° -1 -1 -1 factors: T= temperature ( C), pH= pH, Cl= chlorides (mg·L ), Ca= calcium (mg·L ), Mg= magnesium (mg·L ), O = 2 -1 -1 -1 -1 dissolved oxygen (mg·L ), HAR= total hardness (mg·L ), NO = nitrate (mg·L ) y NO = nitrite (mg·L ).
Figure 3. Ordination diagram of the canonical correspondence analysis performed in the Canal Palomino with the 10 classes shell height of Physella acuta (o) and abiotic factors (-). The shell height: 1 (<3.9 mm), 2 (4-4.9 mm), 3 (5-5.9 mm), 4 (6-6.9 mm), 5 (7-7.9 mm), 6 (8-8.9 mm), 7 (9-0 9.9 mm), 8 (10-10.9 mm), 9 (11-11.9 mm) y 12 (>12 mm). Abiotics factors: T= temperature ( C), -1 -1 pH= pH, Cl= chlorides (mg·L-1), Ca= calcium (mg·L ), Mg= magnesium (mg·L ), O = dissolved 2 -1 -1 -1 -1
Figure 4. Ordination diagram of the canonical correspondence analysis performed in the Tínima River showing the temporal dispersion of 10 classes of shell height of Physella acuta. The shell height: 1 (<3.9 mm), 2 (4-4.9 mm), 3 (5-5.9 mm), 4 (6-6.9 mm), 5 (7-7.9 mm), 6 (8-8.9 mm), 7 (9-0 9.9 mm), 8 (10-10.9 mm), 9 (11-11.9 mm) y 12 (>12 mm). Abiotics factors: T= temperature ( C), -1 -1 -1 pH= pH, Cl= chlorides (mg·L ), Ca= calcium (mg·L ), Mg= magnesium (mg·L ), O = dissolved 2 -1 -1 -1 -1 oxygen (mg·L ), HAR= total hardness (mg·L ), NO = nitrate (mg·L ) y NO = nitrite (mg·L ). 3 2
Figure 5. Ordination diagram of the canonical correspondence analysis performed in the Canal Palomino showing the temporal dispersion of 10 classes of shell height of Physella acuta. The shell height: 1 (<3.9 mm), 2 (4-4.9 mm), 3 (5-5.9 mm), 4 (6-6.9 mm), 0 5 (7-7.9 mm), 6 (8-8.9 mm), 7 (9-9.9 mm), 8 (10-10.9 mm), 9 (11-11.9 mm) y 12 (>12 mm). Abiotics factors: T= temperature ( C), -1 -1 -1 pH= pH, Cl= chlorides (mg·L-1), Ca= calcium (mg·L ), Mg= magnesium (mg·L ), O = dissolved oxygen (mg·L ), HAR= total 2 -1 -1 hardness (mg·L ), NO = nitrate (mg·L ) y NO = nitrite (mg/l). Months: JAN1=January 2014 and JAN2= January 2015.
INFLUENCIA AMBIENTAL EN LA ABUNDANCIA DE DOS POBLACIONES DE PHYSELLA ACUTA (PULMONATA: PHYSIDAE) DE CAMAGÜEY (CUBA)
  • Article
  • Full-text available

November 2020

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18 Reads

Neotropical Helminthology

Raisa Vázquez-Capote

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Physella acuta Draparnaud 1805 es una especie muy abundante en los lugares donde parece llevar a cabo una determinada acción de control sobre otras especies indeseables de moluscos. Se determinó mediante un análisis de correspondencia canónica la influencia de algunos factores abióticos en dos poblaciones de esta especie en Camagüey, Cuba. Las muestras se tomaron una vez al mes usando un tamiz para remover los estratos y la vegetación por unidad de esfuerzo (15 min) sin reposición. Los moluscos fueron clasificados en 10 clases de altura de la concha. En el río Tínima, las clases de mayor tamaño fueron influenciadas por las condiciones climáticas, no así las clases medianas; pero en El Canal Palomino, las únicas clases que resultaron sensibles a los cambios climáticos fueron las de mayor tamaño. La consideración anterior indica que esta especie con una amplia distribución tal vez por su capacidad de tolerar de gran variabilidad de la calidad química del agua, enfrenta con éxito valores extremos en los parámetros físicos y químicos, esta situación, sin duda, ha permitido a esta especie colonizar con éxito hábitats muy inestables, similares a los analizados en el presente estudio llevado a cabo en la región oriental de Cuba.

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Figure 1. Map of Cuba showing the Camagüey province and its capital with the same name (*).  
Figure 2. Ordination diagram of the canonical correspondence analysis performed in the Tínima River with the 10 classes shell height of Physella acuta (o) and abiotic factors (-). The shell height: 1 (<3.9 mm), 2 (4-4.9 mm), 3 (5-5.9 mm), 4 (6-6.9 mm), 5 (7-7.9 mm), 6 (8-8.9 mm), 7 (9-9.9 mm), 8 (10-10.9 mm), 9 (11-11.9 mm) y 12 (>12 mm). Abiotics °-1-1-1 factors: T= temperature ( C), pH= pH, Cl= chlorides (mg·L ), Ca= calcium (mg·L ), Mg= magnesium (mg·L ), O = 2-1-1-1-1 dissolved oxygen (mg·L ), HAR= total hardness (mg·L ), NO = nitrate (mg·L ) y NO = nitrite (mg·L ).
Figure 3. Ordination diagram of the canonical correspondence analysis performed in the Canal Palomino with the 10 classes shell height of Physella acuta (o) and abiotic factors (—). The shell height: 1 (<3.9 mm), 2 (4-4.9 mm), 3 (5-5.9 mm), 4 (6-6.9 mm), 5 (7-7.9 mm), 6 (8-8.9 mm), 7 ( 
Figure 4. Ordination diagram of the canonical correspondence analysis performed in the Tínima River showing the temporal dispersion of 10 classes of shell height of Physella acuta. The shell height: 1 (<3.9 mm), 2 (4-4.9 mm), 3 (5-5.9 mm), 4 (6-6.9 mm), 5 (7-7.9 mm), 6 (8-8.9 mm), 7 (9- 0 9.9 mm), 8 (10-10.9 mm), 9 (11-11.9 mm) y 12 (>12 mm). Abiotics factors: T= temperature ( C),  
Figure 5. Ordination diagram of the canonical correspondence analysis performed in the Canal Palomino showing the temporal dispersion of 10 classes of shell height of Physella acuta. The shell height: 1 (<3.9 mm), 2 (4-4.9 mm), 3 (5-5.9 mm), 4 (6-6.9 mm), 0 5 (7-7.9 mm), 6 (8-8.9 mm), 7 (9-9.9 mm), 8 (10-10.9 mm), 9 (11-11.9 mm) y 12 (>12 mm). Abiotics factors: T= temperature ( C), -1 -1 -1 pH= pH, Cl= chlorides (mg·L-1), Ca= calcium (mg·L ), Mg= magnesium (mg·L ), O = dissolved oxygen (mg·L ), HAR= total 2 -1 -1 hardness (mg·L ), NO = nitrate (mg·L ) y NO = nitrite (mg/l). Months: JAN1=January 2014 and JAN2= January 2015.  
ENVIRONMENTAL INFLUENCE ON THE ABUNDANCE OF TWO POPULATIONS OF PHYSELLA ACUTA (PULMONATA: PHYSIDAE) FROM CAMAGÜEY (CUBA)

December 2015

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225 Reads

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8 Citations

Physella acuta Draparnaud is a species extremely abundant in places where they appear to carry out a certain controlling action on other undesirable species of mollusks. The influence of some abiotic factors on two populations of this species from Camagüey, Cuba was determined by a canonical correspondence analysis. The samples were taken once a month using a sieve, as well as, the strata of vegetation in a time unit (15 min) without repositioning the specimen. The mollusks were classified into 10 classes of shell height. In the Tínima River, only the larger-sized classes were influenced by weather conditions. In the Canal Palomino, the only classes that proved sensitive to climatic changes were the larger-size ones. The above consideration indicates that this widely distributed species perhaps by its capacity of tolerating of great variability of the chemical quality of water, successfully facing extreme values in the physical and chemical parameters. This situation undoubtedly has permitted this species to colonize with success very unstable habitats, similar to those analyzed in the present studies that were carried out in the eastern region of Cuba.

Citations (1)


... Specimens have been found in the waters of the Selouan and Za Rivers-some of the most polluted rivers in eastern Morocco [38]. This result is congruent with the literature on P. acuta in which it is considered a globally invasive species living in all kinds of freshwater environments, including altered habitats [18,39,40]. Once established, P. acuta can adapt to a wide range of habitat conditions including highly polluted freshwaters [40]. ...

Reference:

Factors Explaining the Distribution of Physella acuta (Draparnaud, 1805) in Freshwaters of Morocco
ENVIRONMENTAL INFLUENCE ON THE ABUNDANCE OF TWO POPULATIONS OF PHYSELLA ACUTA (PULMONATA: PHYSIDAE) FROM CAMAGÜEY (CUBA)