Brucethoa Isro

Brucethoa Isro

New species of deep-sea isopod discovered from Kerala named after ISRO.

  • Brucethoa Isro – Fish-parasitic crustacean, belonging to the genus Brucethoa
  • Significance – 2nd species within this genus to be documented in India.
  • Unique Features – Females of the species tend to be larger than males.
  • Isopods – Order of invertebrates (animals without backbones) that belong to the greater crustacean group of animals
  • Distribution – About half of the known species of isopods live in the ocean.
    • Others live in coastal and shelf waters
  • Features –
    • Most are free-living, but a number of marine species are parasitic on other animals.
    • Most morphologically diverse of all the crustacean groups, coming in many different shapes and sizes
  • Crustaceans – Belongs to the large group of the Arthropods which include the crabs, shrimps etc.
  • Features –
    • Invertebrates with a hard exoskeleton 
    • Segmented body that is bilaterally symmetrical
    • More than four pairs of jointed appendages
    • An open circulatory system.
    • Most are free-living freshwater or marine animals, but some are terrestrial (e.g. woodlice), some are parasitic (e.g. fish lice) and some do not move (e.g. barnacles)

Source: The Hindu


Consider the following kinds of organisms:
1. Copepods
2. Cyanobacteria
3. Diatoms
4. Foraminifera
Which of the above are primary producers in the food chains of oceans?

[UPSC Civil Service Exam – 2021 Prelims]

(a) 1 and 2
(b) 2 and 3
(c) 3 and 4
(d) 1 and 4

Answer: (b)
Explanation:
Copepods and Foraminifera are not primary producers.


Practice Question

Consider the following statements:

  1. Apart from oceans, isopods are also found in coastal and shelf waters.
  2. Some of the isopods are parasitic.

Which of the statements is/are correct?

 
 
 
 

Question 1 of 1

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