Biological
The pink shrimp Pandalus borealis is an important food resource
The spot prawn is actually a large shrimp
Biologists distinguish the true shrimp from the true prawn because of the differences in their gill structures.
The gill structure is lamellar in shrimp but branching in prawns.
The easiest practical way to separate true shrimps from true prawns is to examine the second abdominal segment.
The second segment of a shrimp overlaps both the first and the third segment, while the second segment of a prawn overlaps only the third segment.
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