How do marine animals react to light during night dives?

How do marine animals react to light during night dives?

• A. Many are attracted or repelled by artificial light
• B. All marine animals are attracted to light
• C. Marine animals do not react to light
• D. They only react to sound

Answer: (A)

Marine animals exhibit varied reactions to light during night dives, and many species are indeed attracted to or repelled by artificial light sources. This behavior is primarily due to their natural instincts and evolutionary adaptations. For instance, certain fish and invertebrates may be lured by light because it attracts zooplankton, which serve as a food source. Conversely, some species may avoid light to evade predators or because they rely on the darkness for hunting and foraging. The essence of this attraction or repulsion to light highlights the importance of understanding marine behavior, especially for divers. Implementing this knowledge helps divers minimize disturbances to the underwater ecosystem and ensure a responsible approach to night diving. The reactions of marine animals to light can also influence visibility and safety during dives, underlining the significance of this concept in diving training and practice.

Marine animals exhibit varied reactions to light during night dives, and many species are indeed attracted to or repelled by artificial light sources. This behavior is primarily due to their natural instincts and evolutionary adaptations. For instance, certain fish and invertebrates may be lured by light because it attracts zooplankton, which serve as a food source. Conversely, some species may avoid light to evade predators or because they rely on the darkness for hunting and foraging.

The essence of this attraction or repulsion to light highlights the importance of understanding marine behavior, especially for divers. Implementing this knowledge helps divers minimize disturbances to the underwater ecosystem and ensure a responsible approach to night diving. The reactions of marine animals to light can also influence visibility and safety during dives, underlining the significance of this concept in diving training and practice.