抗挤压的气囊使昆虫幼虫能够在极深的水生栖息地生存，这一成果由不列颠哥伦比亚大学
研究团队发现马拉维湖的湖蝇的水生幼虫已经将它们的气管系统改造成加强的浮力调节充气囊，使它们能够通过在白天进行200多米深的湖泊缺氧低营养盐的迁徙来逃避掠食性鱼类。它们的气囊的深度随着年龄的增加而增加，最后的年龄在深度超过半公里的地方抵抗内爆。与预期相反，这些昆虫适应了深水栖息地的极端静水压力，使它们能够与远洋鱼类共存。
据了解，水生昆虫在远洋海洋栖息地的缺失被归因于它们充满空气的气管呼吸系统，在进行垂直垂直迁徙以逃避掠食性鱼类时，该系统可能在深度内爆。
附：英文原文
Title: Crush-resistant air sacs allow insect larvae to exploit aquatic habitats at extreme depth
Author: Evan K. G. McKenzie, Maxon J. R. Ngochera, Joseph Chombo, Hayley McLennan, Roland Proud, Tahnee Ames, Philip G. D. Matthews
Issue&Volume: 2026-07-23
Abstract: The absence of aquatic insects from pelagic marine habitats has been attributed to their air-filled tracheal respiratory system, which could implode at depth while undertaking diel vertical migrations to escape predatory fish. However, we found that the aquatic larvae of the lake fly Chaoborus edulis in Lake Malawi have modified their tracheal system into reinforced buoyancy-regulating air-filled sacs, allowing them to escape predatory fish by undertaking these migrations well over 200 meters deep into the lake’s anoxic hypolimnion during the day. The crush depth of their air sacs increases with each instar, with final instars resisting implosion at depths greater than half a kilometer. Contrary to expectations, these insects adapt to the extreme hydrostatic pressures of deep-water habitats, allowing them to coexist with pelagic fish.
DOI: aed0667
Source: https://www.science.org/doi/10.1126/science.aed0667