fish

  • Old fish few and far between under fishing pressure

    Like old-growth trees in a forest, old fish in the ocean play important roles in the diversity and stability of marine ecosystems. Critically, the longer a fish is allowed to live, the more likely it is to successfully reproduce over the course of its lifetime, which is particularly important...
  • Steephead parrotfish – the farmers of the ocean

    Steephead parrotfish (Chlorurus microrhinos) are picky eaters. In the central Pacific, however, they appear to have taken matters into their own hands — er, fins. A new study by UC Santa Barbara marine biologists shows for the first time that these large algae-eaters rotationally harvest their favorite food and...
  • Risky business: exposure to oil impairs reef fish behaviour

    A world-first study has found that petroleum-based oil, even in small amounts, causes coral reef fishes to engage in risky behaviours, endangering both their lives and the health of the reefs around them. Just as one too many cocktails can cloud a person’s judgement, oil—in concentrations equivalent to only...