Histological evidence of Bluefin tuna (Thunnus thynnus Linnaeus, 1758) spawning in waters within the Mexican Exclusive Economic Zone in the Gulf of Mexico

Sofía Ortega-García; Alberto Abad-Uribarren; Ulianov Jakes-Cota; Nurenskaya Vélez-Arellano

doi:10.1080/17451000.2019.1662448

Histological evidence of Bluefin tuna (Thunnus thynnus Linnaeus, 1758) spawning in waters within the Mexican Exclusive Economic Zone in the Gulf of Mexico

Sofía Ortega-García, Alberto Abad-Uribarren, Ulianov Jakes-Cota, Nurenskaya Vélez-Arellano

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Ovaries of bluefin tuna, Thunnus thynnus, from organisms measuring 247.62 ± 3.54 cm fork length collected within the Mexican Exclusive Economic Zone in the Gulf of Mexico, were examined. The highest gonadosomatic index was recorded in April (1.6 ± 0.28), coinciding with the presence of oocytes with a migratory nucleus (oocyte diameter 439 ± 32.84 µm); fully developed gonads were also observed in two females and two males (ovaries or testes, respectively) caught in late April when sea surface waters exceeded 26 °C. The microscopic examination of the gonads sampled showed structures that evidenced spawning in females measuring 280 cm FL.

Original language	English
Pages (from-to)	444-450
Number of pages	7
Journal	Marine Biology Research
Volume	15
Issue number	7
DOIs	https://doi.org/10.1080/17451000.2019.1662448
State	Published - 9 Aug 2019
Externally published	Yes

Keywords

Atlantic bluefin tuna
gonadosomatic index
histology
reproduction

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10.1080/17451000.2019.1662448

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title = "Histological evidence of Bluefin tuna (Thunnus thynnus Linnaeus, 1758) spawning in waters within the Mexican Exclusive Economic Zone in the Gulf of Mexico",

abstract = "Ovaries of bluefin tuna, Thunnus thynnus, from organisms measuring 247.62 ± 3.54 cm fork length collected within the Mexican Exclusive Economic Zone in the Gulf of Mexico, were examined. The highest gonadosomatic index was recorded in April (1.6 ± 0.28), coinciding with the presence of oocytes with a migratory nucleus (oocyte diameter 439 ± 32.84 µm); fully developed gonads were also observed in two females and two males (ovaries or testes, respectively) caught in late April when sea surface waters exceeded 26 °C. The microscopic examination of the gonads sampled showed structures that evidenced spawning in females measuring 280 cm FL.",

keywords = "Atlantic bluefin tuna, gonadosomatic index, histology, reproduction",

author = "Sof{\'i}a Ortega-Garc{\'i}a and Alberto Abad-Uribarren and Ulianov Jakes-Cota and Nurenskaya V{\'e}lez-Arellano",

note = "Publisher Copyright: {\textcopyright} 2019, {\textcopyright} 2019 Informa UK Limited, trading as Taylor & Francis Group.",

year = "2019",

month = aug,

day = "9",

doi = "10.1080/17451000.2019.1662448",

language = "Ingl{\'e}s",

volume = "15",

pages = "444--450",

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Histological evidence of Bluefin tuna (Thunnus thynnus Linnaeus, 1758) spawning in waters within the Mexican Exclusive Economic Zone in the Gulf of Mexico. / Ortega-García, Sofía; Abad-Uribarren, Alberto; Jakes-Cota, Ulianov et al.
In: Marine Biology Research, Vol. 15, No. 7, 09.08.2019, p. 444-450.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Histological evidence of Bluefin tuna (Thunnus thynnus Linnaeus, 1758) spawning in waters within the Mexican Exclusive Economic Zone in the Gulf of Mexico

AU - Ortega-García, Sofía

AU - Abad-Uribarren, Alberto

AU - Jakes-Cota, Ulianov

AU - Vélez-Arellano, Nurenskaya

PY - 2019/8/9

Y1 - 2019/8/9

N2 - Ovaries of bluefin tuna, Thunnus thynnus, from organisms measuring 247.62 ± 3.54 cm fork length collected within the Mexican Exclusive Economic Zone in the Gulf of Mexico, were examined. The highest gonadosomatic index was recorded in April (1.6 ± 0.28), coinciding with the presence of oocytes with a migratory nucleus (oocyte diameter 439 ± 32.84 µm); fully developed gonads were also observed in two females and two males (ovaries or testes, respectively) caught in late April when sea surface waters exceeded 26 °C. The microscopic examination of the gonads sampled showed structures that evidenced spawning in females measuring 280 cm FL.

AB - Ovaries of bluefin tuna, Thunnus thynnus, from organisms measuring 247.62 ± 3.54 cm fork length collected within the Mexican Exclusive Economic Zone in the Gulf of Mexico, were examined. The highest gonadosomatic index was recorded in April (1.6 ± 0.28), coinciding with the presence of oocytes with a migratory nucleus (oocyte diameter 439 ± 32.84 µm); fully developed gonads were also observed in two females and two males (ovaries or testes, respectively) caught in late April when sea surface waters exceeded 26 °C. The microscopic examination of the gonads sampled showed structures that evidenced spawning in females measuring 280 cm FL.

KW - Atlantic bluefin tuna

KW - gonadosomatic index

KW - histology

KW - reproduction

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DO - 10.1080/17451000.2019.1662448

M3 - Artículo

SN - 1745-1000

VL - 15

SP - 444

EP - 450

JO - Marine Biology Research

JF - Marine Biology Research

IS - 7

ER -

Histological evidence of Bluefin tuna (Thunnus thynnus Linnaeus, 1758) spawning in waters within the Mexican Exclusive Economic Zone in the Gulf of Mexico

Abstract

Keywords

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