Effect of depth gradient and temperature on Zostera marina vegetative and reproductive phenology in the first year of the 1997–1998 El Niño

Effect of depth gradient and temperature on Zostera marina vegetative and reproductive phenology in the first year of the 1997–1998 El Niño

Does Zostera marina exhibit phenotypic plasticity, maximizing fitness in traits responding to environmental factors, i.e., depth and temperature? We compared the vegetative and sexual phenology and reproductive effort of Z. marina by analyzing vegetative and reproductive shoot density, biomass, and...

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Главные авторы: Meling-López, Alf Enrique, Ibarra-Obando, Silvia Emilia, de la Cueva, Horacio, Ortega-Romero, Pedro, Navarro-Verdugo, Adriana Leticia
Формат: Online
Язык:eng
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Опубликовано: Iniversidad Autónoma de Baja California 2021
Online-ссылка:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3101
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id oai:cienciasmarinas.com.mx:article-3101
record_format ojs
institution Ciencias Marinas
collection OJS
language eng
spa
format Online
author Meling-López, Alf Enrique
Ibarra-Obando, Silvia Emilia
de la Cueva, Horacio
Ortega-Romero, Pedro
Navarro-Verdugo, Adriana Leticia
spellingShingle Meling-López, Alf Enrique
Ibarra-Obando, Silvia Emilia
de la Cueva, Horacio
Ortega-Romero, Pedro
Navarro-Verdugo, Adriana Leticia
Effect of depth gradient and temperature on Zostera marina vegetative and reproductive phenology in the first year of the 1997–1998 El Niño
author_facet Meling-López, Alf Enrique
Ibarra-Obando, Silvia Emilia
de la Cueva, Horacio
Ortega-Romero, Pedro
Navarro-Verdugo, Adriana Leticia
author_sort Meling-López, Alf Enrique
title Effect of depth gradient and temperature on Zostera marina vegetative and reproductive phenology in the first year of the 1997–1998 El Niño
title_short Effect of depth gradient and temperature on Zostera marina vegetative and reproductive phenology in the first year of the 1997–1998 El Niño
title_full Effect of depth gradient and temperature on Zostera marina vegetative and reproductive phenology in the first year of the 1997–1998 El Niño
title_fullStr Effect of depth gradient and temperature on Zostera marina vegetative and reproductive phenology in the first year of the 1997–1998 El Niño
title_full_unstemmed Effect of depth gradient and temperature on Zostera marina vegetative and reproductive phenology in the first year of the 1997–1998 El Niño
title_sort effect of depth gradient and temperature on zostera marina vegetative and reproductive phenology in the first year of the 1997–1998 el niño
description Does Zostera marina exhibit phenotypic plasticity, maximizing fitness in traits responding to environmental factors, i.e., depth and temperature? We compared the vegetative and sexual phenology and reproductive effort of Z. marina by analyzing vegetative and reproductive shoot density, biomass, and reproductive stages to determine structural features of vegetative and reproductive shoots from subtidal and intertidal environments in San Quintín Bay, Baja California, a year before and after the 1997–1998 El Niño/Southern Oscillation (ENSO). We found significant differences in vegetative and reproductive biomass between intertidal and subtidal environments driven by temperature differences between ENSO and non-ENSO years. Subtidal plants had lower density of long reproductive shoots and a shorter reproductive cycle. Seed release occurred from May to October in the subtidal environment, and from May to November in the intertidal environment. Maximal recorded values were 219.5 (±45.8) seeds per reproductive shoot in the subtidal environment and 151.3 (±21.5) in the intertidal environment. We observed higher sexual activity and lower vegetative biomass in the intertidal environment, the most stressful environment. Both vegetative and reproductive biomass were affected by the increase in temperature during ENSO, but vegetative and reproductive shoot densities were not affected.
publisher Iniversidad Autónoma de Baja California
publishDate 2021
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3101
_version_ 1792095469020643328
spelling oai:cienciasmarinas.com.mx:article-31012023-11-24T19:25:59Z Effect of depth gradient and temperature on Zostera marina vegetative and reproductive phenology in the first year of the 1997–1998 El Niño Efecto de la profundidad y la temperatura en la fenología reproductiva y vegetativa de Zostera marina durante el primer año de El Niño 1997-1998 Meling-López, Alf Enrique Ibarra-Obando, Silvia Emilia de la Cueva, Horacio Ortega-Romero, Pedro Navarro-Verdugo, Adriana Leticia vegetative biomass reproductive shoots reproductive cycles temperature gradients shoot density biomasa vegetativa haces reproductivos ciclos reproductivos gradientes de temperatura densidad de haces Does Zostera marina exhibit phenotypic plasticity, maximizing fitness in traits responding to environmental factors, i.e., depth and temperature? We compared the vegetative and sexual phenology and reproductive effort of Z. marina by analyzing vegetative and reproductive shoot density, biomass, and reproductive stages to determine structural features of vegetative and reproductive shoots from subtidal and intertidal environments in San Quintín Bay, Baja California, a year before and after the 1997–1998 El Niño/Southern Oscillation (ENSO). We found significant differences in vegetative and reproductive biomass between intertidal and subtidal environments driven by temperature differences between ENSO and non-ENSO years. Subtidal plants had lower density of long reproductive shoots and a shorter reproductive cycle. Seed release occurred from May to October in the subtidal environment, and from May to November in the intertidal environment. Maximal recorded values were 219.5 (±45.8) seeds per reproductive shoot in the subtidal environment and 151.3 (±21.5) in the intertidal environment. We observed higher sexual activity and lower vegetative biomass in the intertidal environment, the most stressful environment. Both vegetative and reproductive biomass were affected by the increase in temperature during ENSO, but vegetative and reproductive shoot densities were not affected. ¿Exhibe Zostera marina plasticidad fenotípica para maximizar la adecuación en características estructurales que responden a factores ambientales como la profundidad y la temperatura? Comparamos la fenología sexual y vegetativa y el esfuerzo reproductivo de Z. marina analizando la densidad, la biomasa y los estadios reproductivos de haces vegetativos y reproductivos para determinar las características estructurales de los haces vegetativos y reproductivos de ambientes submareales e intermareales en la bahía San Quintín, Baja California, un año antes y después de El Niño/Oscilación del Sur (ENOS) de 1997–1998. Encontramos diferencias significativas en la biomasa vegetativa y reproductiva entre el ambiente submareal y el ambiente intermareal que fueron forzadas por las diferencias de temperatura entre los años con ENOS y sin ENOS. Las plantas del submareal tuvieron menor densidad de haces reproductivos largos y un ciclo reproductivo más corto. La liberación de semillas se presentó de mayo a octubre en el submareal y de mayo a noviembre en el intermareal. Los valores máximos registrados fueron 219.5 (±45.8) semillas por haz reproductivo en el submareal y 151.3 (±21.5) en el intermareal. Observamos mayor actividad sexual y menor biomasa vegetativa en el intermareal, el ambiente más estresante. Tanto la biomasa vegetativa como la reproductiva fueron afectadas por un aumento en la temperatura durante el evento ENOS, pero las densidades de haces vegetativos y reproductivos no fueron afectadas. Iniversidad Autónoma de Baja California 2021-04-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf text/xml text/xml https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3101 10.7773/cm.v47i1.3101 Ciencias Marinas; Vol. 47 No. 1 (2021); 1–15 Ciencias Marinas; Vol. 47 Núm. 1 (2021); 1–15 2395-9053 0185-3880 eng spa https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3101/420420556 https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3101/420420792 https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3101/420420793 Copyright (c) 2021 Ciencias Marinas https://creativecommons.org/licenses/by/4.0

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