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AboEl-Nil, Mostafa

doi:10.1023/a:1012098525918

Cited by 22 publications

(9 citation statements)

References 8 publications

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“…Bajo situaciones naturales, el establecimiento de las especies de mangle esta relacionado a la adaptabilidad y tolerancia a las inundaciones. A pesar de que los mangles tienen una adaptabilidad especial a condiciones de agua salada, su resistencia a la salinidad esta limitada a la frecuencia y duración de las mareas locales (AboEl-Nil 2001). Por tal motivo, en ambientes subtropicales, el hidroperiodo, que incluye la duración, frecuencia y área de inundación, es el factor más importante en afectar el crecimiento del mangle , Bashan et al 2013.…”

Section: Study Areaunclassified

“…Los patrones en la zonación de especies de mangle han sido tema de investigación en las última décadas (Bunt et al 1985, Tomlinson 1986, Bunt 1996, Allen et al 2003, He et al 2007. La influencia del nivel del mar en la zonación de especies de mangle depende de varios factores, los cuales incluyen competencias interespecíficas (Ye et al 2003, Cardona-Olarte et al 2006, respuestas ambientales (Ellison et al 2000, Dahdouh-Guebas et al 2004, dispersión y establecimiento de propágulos (AboEl-Nil 2001, Delgado et al 2001, depredación de plántulas (Ellison y Farnsworth 1993, McKee 1995, adaptaciones fisiológicas a inundaciones (Khan y Aziz 2001, Allen et al 2003, He et al 2007, Xiao et al 2009, Xiao et al 2010, Ye et al 2010) y respuesta a cambios hidrodinámicos y geomorfológicos (Bunt 1996, Bryce et al 2003. Sin embargo, la importancia de estos factores ha sido investigada sistemáticamente para sólo unas especies de mangle (McGuinness 1997).…”

Section: Introductionunclassified

“…Under natural conditions, the establishment of mangrove species is related to their adaptability and tolerance to flooding. Despite the special adaptability exhibited by mangroves to saline conditions, their tolerance is limited to the frequency and duration of the local tides (AboEl-Nil 2001). Therefore, in subtropical environments, the hydroperiod, which includes flood duration, frequency, and area, is the main factor affecting mangrove growth , Bashan et al 2013.…”

Section: Introductionmentioning

confidence: 99%

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Growth of three subtropical mangrove species in response to varying hydroperiod in an experimental tank

2015

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ABSTRACT. The effect of hydroperiod on the survival and growth of Avicennia germinans, Laguncularia racemosa, and Rhizophora mangle seedlings under experimental conditions was investigated using a simulated tidal system. Seedlings of the three mangrove species were grown at four inundation levels. All levels were flooded every 12 h in order to create a simulated semi-diurnal tide cycle (i.e., two high tides and two low tides per day). Based on the hydroperiod for the study area, level 1 was flooded for 10 h, level 2 for 6 h, level 3 for 2 h, and level 4 for 6 min. After 570 days, the results showed that R. mangle presented the highest growth at level 1 and the lowest growth at level 4. The optimal growth of L. racemosa occurred at levels 2 and 3, but all the seedlings died at level 1, indicating that this species is highly sensitive to tidal regimes. Compared to L. racemosa and R. mangle, A. germinans had a moderate growth rate at all four levels. Mangrove growth differentiations were more prominent at levels 1 and 3, where the three species showed very different growth patterns. Studies of optimal growth using hydroperiod experiments are important in order to understand the physiological responses of mangrove forests to a possible sea level rise in the next decades, especially in subtropical environments where they are constantly exposed to stress.Key words: hydroperiod, Avicennia germinans, Laguncularia racemosa, Rhizophora mangle. RESUMEN.Se investigó el efecto del hidroperiodo en el crecimiento y supervivencia de plántulas de Avicennia germinans, Laguncularia racemosa y Rhizophora mangle bajo condiciones experimentales por medio de un simulador de mareas. Se colocaron plántulas de las tres especies a cuatro diferentes niveles de inundación durante 12 h para simular un ciclo de marea semidiurna (i.e., dos mareas altas y dos mareas bajas por día). Con base en el hidroperiodo de la zona de estudio, el nivel 1 estuvo inundado por 10 h, el nivel 2 por 6 h, el nivel 3 por 2 h y el nivel 4 por 6 min. Después de 570 días, los resultados mostraron que R. mangle presentó el mayor crecimiento en el nivel 1 y el menor crecimiento en el nivel 4. El crecimiento óptimo de L. racemosa fue en los niveles intermedios 2 y 3, pero todas las plántulas murieron en el nivel 1, lo cual nos indica que esta especie es altamente sensible a periodos prolongados de inundación. Comparado con L. racemosa y R. mangle, A. germinans presentó un crecimiento moderado en los cuatro niveles. La diferencia en el crecimiento de los manglares fue más prominente en los niveles 1 y 3, donde las tres especies mostraron patrones muy diferentes. Los estudios sobre el crecimiento óptimo mediante simuladores de marea son importantes para entender la respuesta fisiológica de los bosques de mangle a un posible incremento en el nivel del mar en las próximas décadas, especialmente en ambientes subtropicales donde el nivel de estrés es alto.

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Section: Study Areaunclassified

Section: Introductionunclassified

Section: Introductionmentioning

confidence: 99%

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Growth of three subtropical mangrove species in response to varying hydroperiod in an experimental tank

2015

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“…comm.). However, in arid regions (including the Arabian Gulf), where soils are nutrient poor and mangroves are typically dwarfed and very slow growing (Naidoo 2009), it may take well over 10 years for the seedlings to reach heights comparable to natural mangrove stands (AboEl-Nil 2001;Ochieng and Erftemeijer 2002;Almahasheer et al 2016, Erftemeijer et al 2018. Some advantages of larger trees and saplings over seedlings may include that they are less likely to be uprooted and washed away, they offer a promise of greater and faster shoreline protection and they are more likely to rapidly serve as a source of propagules for natural recruitment and further replanting.…”

Section: Discussionmentioning

confidence: 99%

Salvaging and replanting 300 mangrove trees and saplings in the arid Arabian Gulf

Erftemeijer

Price

Ito

et al. 2021

Mar. Freshwater Res.

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Construction works along a causeway at Mubarraz Island near Abu Dhabi, United Arab Emirates, in the Arabian Gulf necessitated the salvaging and replanting of 300 mangroves (Avicennia marina). Mangroves were excavated manually by shovel (smaller trees and saplings) or mechanically using a backhoe excavator (larger trees), transported with the root ball wrapped in burlap and replanted in a newly created tidal channel. Relocated mangroves were exposed to two different watering regimes and two tidal inundation levels, and were monitored for survival, plant height and leaf health (percentage of green leaves) at 0 and 1 weeks, and then at 3, 7 and 12.5 months. Tree mortality was high in the first week (24%) in mid-summer, with further losses (43%) during the next 3 months. After 12.5 months, 31% of the transplanted trees had survived. There was a significant effect of the duration of tidal inundation on survival and leaf health (higher survival in shallow than deeper plots). There were no significant effects of initial tree height or freshwater treatment on survival or plant performance. These results demonstrate that salvaging of larger mangroves is technically feasible, potentially providing faster ecosystem services (e.g. shoreline protection, source of new propagules) than newly planted seedlings in arid regions where growth is extremely slow.

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“…Mangrove habitats in the Arabian Gulf support a variety of important species of fish, shrimp, turtles, and birds, and contribute significantly to coastal productivity [10]. Studies in Kuwait have shown significant positive impacts of mangrove plantations on the coastal environment, including water quality, soil conditions and biodiversity [11,12]. There are approximately 70 different major mangrove species worldwide, while only two of these species can be found in the Arabian Gulf [13].…”

Section: Introductionmentioning

confidence: 99%

Study Growth Indicators of Mangrove Avicennia marina (Forsk.) Vierh. Cultivated on the Coast of Khor Al-Zubair Oil Port, South of Basrah - Iraq

Al-Zewar

Al-Edany

Naema

2023

IOP Conf. Ser.: Earth Environ. Sci.

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A study was conducted to assess the growth indicators of mangroves Avicennia marina cultivated in the intertidal zone at the Khor Al-Zubair oil port site for the period from May 2020 to May 2021. The study showed high growth indicators. Recorded the highest averages indicators to the total height of the plant and the number of lateral branches were 113.4 cm and 30.4 branches. Plant-1 after 12 months from the date of planting in the site, while the highest average to indicators of the total number of leaves in the plant, the total leaf area, and the total leaf content of chlorophyll reached 176 leaves.plant-1, 3511 cm2.plant-1, and 52.7 μg.cm-2 were after 9 months of cultivation in the field, respectively. While the plants achieved survival rates of 78% at the end of the experiment. The results were compared according to the Least Significant Difference (L.S.D.) test at a probability level of 0.05.

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Cited by 22 publications

References 8 publications

Growth of three subtropical mangrove species in response to varying hydroperiod in an experimental tank

Growth of three subtropical mangrove species in response to varying hydroperiod in an experimental tank

Salvaging and replanting 300 mangrove trees and saplings in the arid Arabian Gulf

Study Growth Indicators of Mangrove Avicennia marina (Forsk.) Vierh. Cultivated on the Coast of Khor Al-Zubair Oil Port, South of Basrah - Iraq

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