NZA study led by Professor Jonathan Waters from the University of Otago's Department of Zoology reveals that whitebait fish can rapidly adapt to environmental changes by altering their life cycles and physical traits. When their migration paths to the sea are blocked—due to factors such as landslides or earthquakes—the fish exhibit significant biological differences compared to their sea-going counterparts. Landlocked whitebait develop weaker bodies and slower growth rates, while adapting to breed in summer instead of autumn to align with seasonal productivity. The research highlights genetic flexibility, noting that some sea-going whitebait possess genes allowing them to transition to a landlocked lifestyle. This adaptation enables survival in varied environments, from sheltered lakes to turbulent coastal areas.
Tendenz-Einschätzung (Mitte): The article discusses scientific findings related to the adaptive biology of whitebait fish. There is no political framing, controversy, or ideological emphasis present. The content focuses purely on biological research and does not touch upon politics, policy, or contentious issues.
