Ddt was sprayed in a long island salt marsh over a period of years for mosquito control. a portion of the food web is as follows: algae -> shrimp-> american eel -> atlantic needlefish -> ring-billed gull in which organism would biological magnification be greatest?

Atlantic Needlefish

Explanation:

Bio magnification can be defined as the phenomenon in which there is a increase in the concentration of the substance specially toxic chemicals in the body of the organisms at higher levels in the food chain.

The level of chemical will be greatest in the animals that lies at higher tropic level in the food web.

As the level increases the concentration of chemical will also increase with respect to the lower organism as one higher organism feeds on many lower organisms.