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How do they control for overfishing? It is certainly concerning that fish population is in decline, but it doesn't seem clear that water temperature is the onl

• monetus 8y ago
  Someone please correct me if I'm wrong, but iirc, they make a projection based on how many are caught each year.
  • pvaldes 8y ago
    In fact based on how many are landed and registered at ports. that is a different question. Pirate fishing is unregistered. I would expect a correction factor for sea cages, that... maybe could have increased in the same period of time? just guessing. I dunno. There are probably also entire areas closed to fishermen since 2011, We could expect a decrease on fishes previously landed from this areas.
• JamesBarney 8y ago
  > The team compared that data to records that showed how ocean temperatures had changed over time, broken down by the various regions. These regional analyses were important, because some parts of the ocean have warmed faster than others. > “We then connected those to which populations responded positively, negatively, and which didn’t respond at all,” Dr. Pinsky said. > The data revealed some other trends. Fish populations in the colder parts of their ranges tended to fare better than those located in warmer areas — for those fish, the extra heat was too much. This was especially troubling to the researchers, because the data they used was less detailed in the tropics. Fish losses in those regions may have been higher than in the regions the study focused on, Dr. Pinsky said. > Warm areas fared even worse when they were overfished. The researchers suggested that overfishing made fish even more vulnerable to temperature changes by hurting their ability to reproduce and damaging the ecosystem.