Limitaciones de los parámetros de las funciones de predación. Implicaciones para la iniciación de las proliferaciones de fitoplancton

Autores/as

  • Jordi Solé Institut de Ciències del Mar, CSIC
  • Emilio García-Ladona Institut de Ciències del Mar, CSIC
  • Jaume Piera Institut de Ciències del Mar, CSIC
  • Marta Estrada Institut de Ciències del Mar, CSIC

DOI:

https://doi.org/10.3989/scimar.04271.18A

Palabras clave:

proliferaciones algales, plancton, selección de la presa, funciones de predación, modelo multiespecie, limitaciones matemáticas

Resumen


Las proliferaciones de fitoplancton son eventos de producción y acumulación de biomasa de fitoplancton que tienen una fuerte influencia tanto en la dinámica del ecosistema como en actividades socioeconómicas. Entre los factores biológicos que afectan la dinámica de las proliferaciones fitoplanctónicas, la selección de presas por el zooplancton puede jugar un papel importante. En este trabajo consideramos el estado inicial de desarrollo de una proliferación algal considerando que la presión de la predación puede permitir a una especie de algas con una menor tasa de crecimiento intrínseco que un competidor, ser dominante. Utilizamos un modelo sencillo con dos especies de microalgas y un herbívoro (zooplancton) para deducir relaciones generales entre el crecimiento del fitoplancton y la predación. Estas relaciones se aplican a dos funciones de respuesta de predación para deducir las limitaciones matemáticas que los parámetros de estas funciones deben obedecer. Para evaluar la utilidad de las relaciones deducidas en un marco más general, los resultados se aplican a un modelo de múltiples especies del ecosistema marino (ERSEM).

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Publicado

2016-09-30

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1.
Solé J, García-Ladona E, Piera J, Estrada M. Limitaciones de los parámetros de las funciones de predación. Implicaciones para la iniciación de las proliferaciones de fitoplancton. Sci. mar. [Internet]. 30 de septiembre de 2016 [citado 12 de mayo de 2024];80(S1):129-37. Disponible en: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1664

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