Habitat characteristics of an invasive species Rhinella marina (Cane Toad) and environmental parameters in the rice fields of Brgy. Salitran 1 Dasmariñas, Cavite, Philippines/ Cesario O. Bandilla, Kenneth R. Indolos, Mary Jobelin D. Quintero. Kristine Khyla I. Samson .--

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Bandilla, Cesario O [author ]

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TextPublication details: Manila: Technological University of the Philippines, 2023Description: vii, 134pages: 29cm. +1 CD ROM (3/4in.)Content type:

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BTH GF 41 B36 2023

Dissertation note: College of Science .-- Bachelor of Science in Environmental Science: Technological University of the Philippines, 2023. Summary: This study aimed to determine the habitat characteristics of an invasive species Rhinella marina (cane toad) and its relationship to environmental parameters in the rice fields of Barangay Salitran 1, Dasmariñas, Cavite. Sampling periods were from November 2022 to March 2023 with the two established sampling sites using survey questionnaires to the residents in the barangay. Results showed that fishing, bathing, throwing of garbage, disposing household wastes, and excreting were seldom observed or done near the area which affected several environmental parameters. Grab sampling method was utilized in the collection of water and soil-sediment samples. Physicochemical parameters of water include temperature, turbidity, TDS, salinity, conductivity, pH, dissolved oxygen, BOD, nitrates, phosphates, water level, and total coliform, for soil-sediments: soil temperature, soil pH, water level, total organic carbon, total nitrogen, and soil texture, while air parameters are air temperature, humidity, precipitation, and wind velocity. The soil and air sampling were done in Site 1 (rice fields) in established point locations. The water quality index of the watercourses was considered unfit throughout the sampling period, thus indicating poor and unhealthy aquatic conditions. The cane toad or Rhinella marina species were collected and verified by experts. Biometrics of the toad species include body mass, body weight, and body length. The Spearman rank correlation revealed significant relationship of water pH (r = - 0.975, p = 0.005), BOD (r = 1.000, p = 0.000), and water level (r = - 0.975, p = 0.005), in sediment bed towards the abundance of the said species. These findings conclude that such species have developed adaptive traits in varying habitat. Key words: Rhinella marina, environmental parameters, rice field, Spearman rank correlation, Brgy. Salitran 1

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Item type	Current library	Shelving location	Call number	Copy number	Status	Notes	Date due	Barcode
Bachelor's Thesis COS	TUP Manila Library	Thesis Section-2nd floor	BTH GF 41 B36 2023 (Browse shelf(Opens below))	c.1.	Not for loan	For library use only		BTH0005316

Thesis (undergraduate)

College of Science .-- Bachelor of Science in Environmental Science: Technological University of the Philippines, 2023.

Includes bibliography

This study aimed to determine the habitat characteristics of an invasive species
Rhinella marina (cane toad) and its relationship to environmental parameters in the rice
fields of Barangay Salitran 1, Dasmariñas, Cavite. Sampling periods were from
November 2022 to March 2023 with the two established sampling sites using survey
questionnaires to the residents in the barangay. Results showed that fishing, bathing,
throwing of garbage, disposing household wastes, and excreting were seldom observed or
done near the area which affected several environmental parameters. Grab sampling
method was utilized in the collection of water and soil-sediment samples.
Physicochemical parameters of water include temperature, turbidity, TDS, salinity,
conductivity, pH, dissolved oxygen, BOD, nitrates, phosphates, water level, and total
coliform, for soil-sediments: soil temperature, soil pH, water level, total organic carbon,
total nitrogen, and soil texture, while air parameters are air temperature, humidity,
precipitation, and wind velocity. The soil and air sampling were done in Site 1 (rice
fields) in established point locations. The water quality index of the watercourses was
considered unfit throughout the sampling period, thus indicating poor and unhealthy
aquatic conditions. The cane toad or Rhinella marina species were collected and verified
by experts. Biometrics of the toad species include body mass, body weight, and body
length. The Spearman rank correlation revealed significant relationship of water pH (r = -
0.975, p = 0.005), BOD (r = 1.000, p = 0.000), and water level (r = - 0.975, p = 0.005), in
sediment bed towards the abundance of the said species. These findings conclude that
such species have developed adaptive traits in varying habitat.

Key words: Rhinella marina, environmental parameters, rice field, Spearman rank
correlation, Brgy. Salitran 1

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