Discovery of New Marine Amphipod Species in Chilika Lake

Discovery of New Marine Amphipod Species in Chilika Lake

Researchers at Berhampur University, Odisha, discovered a new species of marine amphipod. The species, named Parhyale odian, was found in Chilika Lake, Asia’s largest brackish water lagoon.

Researchers and Discovery Process

  • Shesdev Patro, assistant professor at Berhampur University, was one of the four researchers involved.
  • The discovery increased the global species count of the genus Parhyale to 16.
  • The findings were published in the journal Zootaxa on February 14, 2024.

Characteristics and Identification

  • The species was collected from the intertidal region of Chilika lagoon in Odisha.
  • It was found alongside seaweed Gracilaria on November 24, 2022.
  • Parhyale odian differs from other species by its stout robust seta on the male gnathopod.
  • It is brown in color, around eight millimeters in length, and has 13 pairs of legs.

Ecological Significance

  • Amphipods, including Parhyale odian, are crucial in marine ecosystems.
  • They play roles in the marine food chain and serve as indicators for climate change impacts.
  • Further research will focus on understanding their specific ecological roles.

Multiple Choice Questions (MCQs):

  1. What is the name of the newly discovered species of marine amphipod?
    • A) Parhyale chilikaensis
    • B) Parhyale odian
    • C) Parhyale ganjamensis
    • D) Parhyale bengalensis
    • Answer: B) Parhyale odian
  2. Where was the new species discovered?
    • A) Arabian Sea
    • B) Bay of Bengal
    • C) Chilika Lake
    • D) Indian Ocean
    • Answer: C) Chilika Lake
  3. What distinguishes Parhyale odian from other species?
    • A) Coloration
    • B) Length
    • C) Number of legs
    • D) Stout robust seta on male gnathopod
    • Answer: D) Stout robust seta on male gnathopod
  4. What is the ecological significance of amphipods?
    • A) They are indicators of coastal pollution.
    • B) They are crucial in the marine food chain.
    • C) They regulate ocean temperatures.
    • D) They produce oxygen through photosynthesis.
    • Answer: B) They are crucial in the marine food chain.
  5. Where were the specimens of Parhyale odian deposited for further research?
    • A) Berhampur University
    • B) Zoological Survey of India, Gopalpur-On-Sea
    • C) Chilika Lake Research Center
    • D) University College Cork, Ireland
    • Answer: B) Zoological Survey of India, Gopalpur-On-Sea