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Article . 2023
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Relationship between fork and intestine length in Atlantic bluefin tuna (Thunnus thynnus).

Authors: Varela, J.L. (José Luis); Galaz, T.; de-la-Gándara, F. (Fernando); Ortega-García, A. (Aurelio); Medina, A.; Rodriguez-Marin, E. (Enrique);

Relationship between fork and intestine length in Atlantic bluefin tuna (Thunnus thynnus).

Abstract

Los datos de longitud a horquilla facilitan información necesaria para las estadísticas de captura, biología de las pesquerías y estudios de población. Sin embargo, en el muestreo de atún rojo no siempre es posible recopilar mediciones de los ejemplares, y los investigadores tienen que recurrir a relaciones biométricas. Mediante una función lineal, se estimó la longitud a horquilla recta (SFL) a partir de la longitud del intestino y se halló una fuerte relación entre estas variables (SFL = 1,58, L de intestino -1,98, r2 = 0,96). Esta función lineal puede utilizarse en futuras estimaciones SFL. Además, lainversa de la inclinación de esta ecuación representa el índice Nikolsky (Ii), que proporciona información sobre hábitos alimentarios y clasifica los peces como carnívoros, omnívoros u herbívoros. Se obtuvo un valor de índice Nikolsky de 0,64, que indica que el atún rojo del Atlántico es un pez carnívoro. Esta observación coincide con estudios anteriores.

Country
Spain
Keywords

gut index, biometric relationships, Atlantic bluefin tuna, Pesquerías, Centro Oceanográfico de Murcia

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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