Exostoma Dhritiae

Why in news?

• A new catfish species named ‘Exostoma Dhritiae’ was discovered by scientists of the Zoological Survey of India (ZSI) in Arunachal Pradesh.

About Exostoma Dhritiae:

• Exostoma Dhritiae is a new species of catfish of the genus Exostoma.
• It is a small fish locally called ‘Ngorang’ by local tribals.
• It was found in Siking stream, a tributary of the Siang River in Arunachal Pradesh.

About Catfish:

• Catfish represent one of the largest groups of freshwater fishes, with more than 2000 species.
• Most catfish are found in freshwater, although there are two families that contain saltwater species.
• Most species of catfish are nocturnal. Catfish are primarily benthic or bottom-dwellers.
• Catfish are an important group because they serve many different roles, including as ornamentals, as food fish in aquaculture, as research animals and for sport fishing.

PRACTICE QUESTION:

Consider the following statements:

1. Most catfish species are found in freshwater

2. Most species of catfish are nocturnal

3. Catfish species are primarily benthic

Which of the statements given above is/are correct?

(a) 1 and 2 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1,2 and 3

Answer