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Respuesta a los comentarios sobre "La lenta adaptación ante el rápido calentamiento conduce al colapso de la pesca de

Andrew J Pershing1, Michael A Alexander2, Christina M Hernandez3

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La mortalidad dependiente de la temperatura es crucial para evaluar con precisión las poblaciones de peces. Ignorar estos efectos, especialmente en el Golfo de Maine, pone en peligro la salud de las poblaciones y las estimaciones de abundancia.

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Área de la Ciencia:

  • Biología marina
  • Ciencias de la pesca
  • Impactos del cambio climático

Sus antecedentes:

  • Preocupaciones planteadas con respecto a la validez de las series temporales de "mortalidad extra" en la investigación pesquera.
  • Los estudios anteriores pueden haber pasado por alto la influencia significativa de los factores ambientales en las poblaciones de peces.

Objetivo del estudio:

  • Validar las series temporales de "mortalidad adicional" incorporando factores dependientes de la temperatura.
  • Evaluar el impacto del calentamiento de las aguas en el crecimiento y la abundancia de bacalao en el Golfo de Maine.

Principales métodos:

  • Incorporación de la mortalidad dependiente de la temperatura en los modelos de estimación de la abundancia.
  • Análisis de las tasas de crecimiento del bacalao en el Golfo de Maine bajo temperaturas de agua variables.

Principales resultados:

  • La inclusión de la mortalidad dependiente de la temperatura mejoró significativamente las estimaciones de abundancia de peces.
  • Se descubrió que el calentamiento de las aguas oceánicas reduce las tasas de crecimiento en las poblaciones de bacalao del Golfo de Maine.

Conclusiones:

  • La serie temporal de "mortalidad adicional" no es falsa, sino que está influenciada por la temperatura.
  • Ignorar los efectos de la temperatura supone un riesgo significativo para la sostenibilidad de la población de bacalao del Golfo de Maine.
  • Las evaluaciones precisas de las poblaciones deben tener en cuenta los cambios ambientales provocados por el clima.