This phrase describes an animal inhabiting a marine environment, geographically separated from a reference point by a narrow body of water. For example, a population of dolphins residing on the opposite side of a channel from a research station would fit this description. The specific species, the strait’s characteristics (width, depth, currents), and the period of inhabitation are all crucial factors for a complete understanding.
Studying such geographically isolated populations can offer valuable insights into evolutionary biology, marine biogeography, and the influence of environmental factors on species development. Differences in diet, behavior, and genetics between populations separated by a strait can reveal how physical barriers affect species divergence and adaptation. Historical records of such populations can also provide critical data for understanding the long-term impacts of environmental changes and human activities.