Mangroves - Science topic

Mangroves significantly contribute to mitigating estuarine acidification through physical, chemical, and biological processes. But the exact mechanism is poorly understood. Protecting and restoring mangroves can thus be an essential strategy for maintaining the health and pH balance of estuarine ecosystems.

Sana po makatulong

It is from the Eastern Pacific. Coloration is true to living color as the specimen is fresh. Collected on high mangrove area. If there are questions that might help the ID, please let me know.

Thanks in advance for the feedback

Cheers!

I want to know about the different benefits of mangroves.

Salinity causes stunted growth of mangroves

I’m interested in understanding the methods used to estimate carbon sequestration in mangrove ecosystems. Specifically, I would like to know:

Dear Researcher, kindly share your research and knowledge.

Currently I am conducting a literature review on antimicrobial peptides derived from animal sources. Even after searching many articles, I couldn't find the amino acid sequence of the following peptides.

1. Pp-Cru, which is derived from a crustin purified from haemolymphof Portunus pelagicus (blue swimmer crab).

2. 14-kDa, which is derived from the granular haemocytes of Episesarma tetragonum (a mangrove crab).

3. rScyreprocin, a recombinant product of scyreprocin (novel protein derived from mud crab Scylla paramamosain).

It would be really helpful if anyone could provide me with the sequence or if there is a tool/database through which we can find out the correct amino acid sequence.

Thank you.

Mangroves were reported to eat into limestone atolls like so much cake - but could it have been diatom partnerships at mangrove roots that ate into the rock? If gypsum formation is a clue, how could we find a more seagoing (or estuary/beach based clue) that diatoms fancy calcium carbonate...and what they are willing to swap for it? :D

mangrove provisioning

Im doing my study and wanted to do forest masking to separate forest from mangrove cover.

Please suggest me any paper for this. Is there any process to collect them and find out in lab?

I think mangrove have so special characters.

Sundarbans mangrove lies in the southern part in Bangladesh.

The Indian Sundarbans mangrove ecosystem at the apex of Bay of Bengal is noted for two distinct salinity regimes. The western region receiving the fresh water input of the Ganga-Bhagirathi-Hooghly River system is relatively less saline than the central region.

In mangrove sediment I want to differentiate organic and inorganic sediment. I am having elements percentage available in the sediments (except carbon and nitrogen).

I am looking for some pictorial guides related to crab species in sri lanka. Any suggestions for such identification guides?

Require Sampling Methodology and Testing Methodology to find out the results about interaction between heavy metals, microorganism and microplastics in sediments of mangroves

Need some suggestions I am looking for my research direction on mangrove ecology the gaps that are still not well studied.

Ecosystem service provided by mangroves has many dimensions. To the consumer, it encompasses timber, fuel wood, fodder, fishes, honey, wax etc. which can be purchased. To the economist, it is the key fuel for coastal prosperity. To the environmentalist, it acts as a reservoir of GHGs like carbon and nitrogen and a coast guard against natural disasters. To the local inhabitants, mangrove ecosystem is the source of their livelihood, economic and food security. However, I believe that there is a retirement age of all these services as most of the services offered by mangrove ecosystem in the form of fishes, honey, timber, fuel, wax etc. have a shelf life of their own. The shelf life can be stretched through regulatory policies, long term planning and balanced research work. The entire spectrum of ecosystem services of mangroves is still untapped due to contradictory approaches and lack of implementing the fruits of cutting edge researches into policy domain. Today, environmentalists oppose expansion of tourism units and shrimp farms in the mangroves, but it is to be noted that these are also the sources livelihoods to millions of coastal inhabitants and island dwellers. If these activities are banned, there will be more illegal intrusion into the forests and exploitation of natural resources. The end results will be negative. If instead, some Combined Biological Treatment Plant (CBTP) can be implemented, I think it would be a sustainable foot step to conserve the natural resources as well as livelihood generation through tourism and shrimp farm based activities. However, there is hardly any focus in this direction at the policy level, and I am sure that even after reading this preface, it may be a show piece in the book shelf.

Can someone help me interpret the data that I have recently collected? I am studying bat diversity in three selected mangrove forests in Misamis Oriental and Northern Mindanao. Here are the data from the three sampling sites:

In Barangay Molugan, six (6) different bat species were captured by twelve (12) individuals. Still, during the sampling period, there was heavy rain. Also, this area is characterized as residential and commercial, and the study sites are remnants of previously depleted and disturbed ecosystems. Also, most of the mangroves here are newly planted; only a few species of mangroves have been found, but other mangroves have flowers and fruits.

Four (4) different species of bats were recorded in Barangay Baybay, with 21 individuals during the sampling, despite heavy rain and a disco party in the neighboring sites. There were a lot of different types of mangroves found, and there are homes and businesses in the area.

In barangay Tubajon, four (4) different species were recorded, and thirty-one (31) individuals captured the entire mangrove species. The mangrove forest here is not natural. Also, there were few homes or businesses near the mangrove forest it was. Also, most of the mangroves are flowering and fruiting.

I need the protocols for tagging tropical mangrove seedings. They need to be numbered and last for at least 10 years (3-4 year censuses).  The only tapes I've been able to find are Dymo tapes and I can control the length and punch a hole for securing it to the seedling.  We were looking for something to secure it to the mangrove seedling like zip ties or something similar.  We also need to purchase over 1000 of them, so price is a key issue.  Any suggestion would be greatly appreciated. If you have experience with long term mangrove seedlings surveys, other suggestions would be welcomed too.

Thanks to all,

Alia.

I want to estimate a total carbon sequestered by mangrove plantation. so kindly provide me the latest and standard methodology for the same.

It is a knee root of mangrove.

Mangroves are getting extinct due to natural and anthropogenic causes. Sundari is one of them that was once luxuriant in Sundarbans (see the small clips)

Although, mangroves have been acknowledged as effective coastal bio-shields and conservation of the same has been taken up as a collective global agenda[1], a more collaborative and intensive effort should be put in place for conservation of these unique habitats. Similar to the collective efforts at the global level, collective efforts at the local and regional level should be initiated and fostered for conservation and sustainable management of mangrove habitats. In this context a discussion note was prepared to initiate a dialogue with individuals and organizations in India, especially on the eastern Indian coast to initiate the “Eastern Indian Mangrove Alliance for Conservation (EIMAC)”, to collectively identify the issues and opportunities and initiate a collaborative effort for conservation of mangrove habitats, sustainable economic development of the coastal communities and climate change mitigation and adaptation on the eastern Indian coast. The following sections of the discussion note provides an overview of the mangrove habitats of the eastern Indian coast, biodiversity, socio-economic conditions of the artisanal fishermen, and the threats of climate change. It was intended that this discussion note would provide the background and help to open the window for further discussion and initiate collaborative and collective action.

[1] Outlook Business Team, 2022. COP27 identifies mangroves as important solution to climate change. Outlook, retrieved online: https://www.outlookindia.com/business/cop27-identifies-mangroves-as-important-solution-to-climate-change-news-235946

I need to find latest mangrove forest map of India (preferably raster) can someone direct me to such dataset link

Thank you

Is there any way to calculate Blue Carbon Sequestration using GIS? I have already mapping Landuse changes between 1990 to 2022.

they are from a mangrove ecosystem in the Gulf of Oman.

It is from the Eastern Pacific. Coloration is true to living color as the specimen is fresh. Collected on high mangrove area. If there are questions that might help the ID, please let me know.

Thanks in advance for the feedback

Cheers!

Can any body help me to identified this gastropod.? Its minute 3-4 mm in size found in mangroves ?

I want to know in which places there are Rhizophora mangle individuals with this structures (see photo). If you have seen this, please sent me this information:

Country:

City:

Geographical coordinates:

Observations: 

Does anyone know the relative water content in leaves of mangroves avicennia marina?

Hello, I am just curious. what would be the benefits for the mangroves if we study the bacteria in its rhizosphere?

We analysed the secondary data collected from the archives of University of Calcutta and Techno India University, West Bengal and several relevant literatures over a period of more than three decades (1984-2016). We considered Sagar Island as the representative of Indian Sundarbans region for this study. We observed an increasing trend in near surface air temperature in all the three seasons, which may be attributed to change of land use pattern due to intense industrialization, unplanned urbanization and expansion of tourism units coupled with establishment of shrimp farms in all the regions at the cost of mangroves. The adverse impacts of such anthropogenic activities related rise in near surface air temperature on marine estuarine biotic community is discussed in a qualitative manner. However is it applies in your place also?

Keywords: Near surface air temperature, temporal variation, Sagar Island, mangroves

If values of total chlorophyll is less than values of chla+chlb. Is this normal for mangroves

if there isn't which is the best of way of working out evaluation?

regards 

samson

I do intend to assess the mangrove health in my country but is in need of an indicator system to help me do such.Based on this,I am pleased to ask as to whether there is a simplify and available Coastal mangrove wetland indicator assessment framework system that can be used to evaluate the coastal mangrove wetland ecosystem?

Hello all,

I'd greatly appreciate any help to clear my confusion about two-way crossed and nested design!

I am counting the abundance of each common genera of microalgae from the mangroves and tidal flats of 2 different sites, 1 sandy and oligotrophic, and the other muddy and eutrophic. The data that I have collected look like this:

1. muddy site - mangrove (n=6)

2. muddy site - tidal flat (n=8)

3. sandy site - mangrove (n=6)

4. sandy site - tidal flat (n=8)

And each set of data is a genus-abundance matrix.

I have always thought that my design is two-way crossed, but was just made aware that it could be a nested design, since the data obtained from say, muddy-mangrove is dependent on it being in the muddy site...

Is this a nested design, afterall? I read that sample sizes must be equal for a nested ANOVA, is that also a requirement for ANOSIM?

Thanks a lot in advance!

I am currently conducting research on how the growth stage affects the antioxidant activity of mangrove leaves (Rhizophora mucronata). I categorize mangrove growth into 3 groups: seedlings, saplings, and trees. Extraction was carried out by the maceration method for 24 hours (methanol solvent). All extracts were filtered through a vacuum filter before the solvent was evaporated using a rotary evaporator. After rotavap, only the tree extract has small granules.

I wonder what is this thing that solidified and why is that?

ps. based on the phytochemical analysis, the tree extract has higher polyphenol concentrations among those extracts, with the strongest antioxidant activity.

The rising sea levels and mangroves are salt-tolerant trees that line tropical and subtropical coastlines. How does the reforestation of mangroves contribute to regulating the global climate through carbon sequestration and storage? Coastal protection from storms? Reduced flood risk? Habitat for distinct species?

I need to do an environmental quality study to determine the effect of shrimp farms in estuaries with mangroves ( 4 sectors with different proportions betwen shrimp farms and mangroves) . Which criteria or protocole I must to use for to diseminate sampling sites for to collect water, sediments and bentos in every sector.

Thanks for your cooperation.

The bacteria are from mangrove land and even glucose can't change the color of medium from red to yellow.

Is there something wrong?

I have measured the hydroxylamine and N2O gas concentration from mangrove soil but i don't understand that how much hydroxylamine concentration (byproduct of nitrogen cycle) contribute to total soil N2O concentration in mangrove sediments.

If in a normal procedure, to determine the amount of carbon stock in a mangrove ecosystem, we measure parameters such as: soil, fallen wood, canopy density, DCH ... With the drone these parameters are not measured, can we? What tipes of drones you recommend to use?

I appreciate your responses.

Soils from intertidal mudflats of mangrove dominated Indian Sundarbans were analyzed for soil organic carbon, bulk density and organic carbon density during 2009 in two different sectors: western and eastern.Samplings were carried out at 12 stations in four differentdepths (0.01–0.10, 0.10–0.20, 0.20–0.30 and 0.30–0.40 m)through three seasons (pre-monsoon, monsoon and post-monsoon). High organic carbon density is observed in thestations of western Indian Sundarbans, which is relativelyclose to the highly urbanized city of Kolkata, Howrah andthe newly emerging Haldia port-cum-industrial complex.The mangrove forest in the eastern Indian Sundarbans exhibits comparatively lower organic carbon density.Anthropogenic activities are almost negligible in this sector because of its location almost within the protected forestarea. The bulk density of the mangrove soil increased with depth, while organic carbon and carbon density decreased with depth almost in all the stations. We observed significant spatial variations in soil organic carbon and organic carbon density in the study area.

I am trying to program a model which indicates the health of mangrove forest in west coast of India and trying to find elements which might be working as indicators of health. Can anyone help me with such indicators and their relation with mangroves?

Hi. Does anybody know any simple model to assess the role of mangroves in coastal protection? (hidroclimatic mitigation/coastal erosion/flood protection). Thanks

I isolated the species from mangrove leaves... Can anyone help me identify the species? the picture was taken under an electronic microscope.

Hi,

Is there is a researcher that can help to know the botanical name of the plant with the help of a picture?

It is a coastal area along the Arabian gulf just before the mangrove plantation. So I want to identify the plant.

Viviparous is a phenomenon present in some plant populatins, particularly in Mangroves populations. Besides in plants like citus and  papaya also shows   this phenomenon.

I am interested in tracking emission from mangrove ecosystem, while portable gas analyzers existing; the associated costs are high. On the same note, few studies have been undertaken using locally assembled measure toolkit using cheap sensors. Whereas ,I am contemplating following this route, I am not sure it will be robust enough for extensive field assessment. Does anyone have an idea on how to go about it in a cost effective way?.

Thanks

George

I have some dry samples of mangrove´s sediments stored in 15 ml centrifugal tubes and I have some reagents for the Hach DR900. I sended samples to specializated labs that report me : <12 mg/Kg and <25mg/Kg of nitrite, nitrate and phosphate.

That results dont say me anything.... it is possible to rehidrate sediments with destilate water in equal proportions and later to read with colorimetry the dilutions after to filtrate the solution in 45 micrometers papers?

It is possible to do it? or somebody could give me ideas please?

Eduardo Rebolledo

The data samples are of completely different sizes so am needing a test that generates a correlation value between different sample sizes.

Rather than invest in fossil-fueled technology like coal-fired plants that will accelerate climate change, we can choose a greener, better way. Job-rich projects include planting forests and mangroves, engaging in soil conservation, and retrofitting buildings to make them more energy efficient. Building climate-resilient infrastructure and expanding green public transportation, renewable energy, and smart electricity grids are also essential. And investing in off-grid renewables creates growth by connecting some of the 3.5 billion people who currently lack access to sufficient electricity.

Mangroves have the ability to absorb up to four times more carbon dioxide by area than upland terrestrial forest ecosystems, carbon dioxide is stored as blue Carbon in the sediment of the mangroves swamps and marshes and green carbon in the soils of the terrestrial forest floors, and that carbon sink forms the carbon pool, but the result obtained from the analysis of the sediment samples of both types of ecosystems doesn't reflect that quantity, the organic carbon of the mangroves swamps ranges from 36 to 69%, whereas, the organic carbon content of the soils of the terrestrial forest ecosystems varies from 16 to 66%, then where and how the extra carbon stored in the mangroves sediments as blue Carbon which is four times more than that of the green carbon of the forest soil?

Mangroves are confined to estuarine and lagoonal areas, particularly in the tropical and sub-tropical coastal areas. In other words, these ecosystems are distributed in most of developing countries, in which population increasing and other socio-economical problems are significant. In such a background, various efforts are taken to conserve and restore/ rehabilitate mangrove ecosystems. However, mangrove ecosystems are extensively cleared or degraded within the last decade in some areas. The ecosystem services of mangroves are greater and why people/governments/authorities neglect these values and concern only short term benefits. Is it worth to convert mangrove ecosystems into arable lands or lands for anthropogenic activities? What will be the worst of this disaster of ecology?

Dear scholars/researchers, please share your valuable views on this matter.

Thanks.

Good day. A simple two-day field activity will be done in an island. Currently, I am thinking to use a single family of gastropods in mangrove, compare color and measurements of of the shells between habitats (such as ground gastropods vs. gastropods on mangrove leaf and trunk and branches). Please advise. Thanks.

I would like to know if it is possible to create artificial substrata flow inter-tidal mudflats or wetlands along the coastline which are already inhabited by mangrove plantations?

Any information about the Sunderban Mangrove Invertertebrates would be appreciated

Hello everyone

I have some research plan about monitoring mangrove environmental, but I don't know the method used for measurement Carbon Stock in the mangrove. Can you help me in explaining the method?

Thank you

Regards,

Putu Angga Wiradana

We often see mangrove vegetation in the estuarine region. But, is there any example where we see mangroves growing on plain sea coast with no river nearby?

Mangrove propagules after planting are washed away due to improper planting techniques.

I am wondering, why my study result show that Kandelia candel and Avicennia alba species are most sensitive towards soil dissolved oxygen (DO) besides R. apiculata among the mangrove species in mangrove forest.

I am guessing that due to their root structure to obtain DO from soil to affect their growth?

therefore I would like to request some related journal paper Or opinions in order to improve myself. Thank you .

Many mangroves like Avicennia and Sonerratia species have developed pneumatophores as an adaptive strategy to survive in hypoxic environment. These pneumatophores receive oxygen from the atmosphere. Why do not they utilize the oxygen received through aerial parts like leaves and then transporting to roots?

Species level classification of mangrove around east coast

Currently, I am doing a project to estimate the aboveground biomass of mangrove at the same time also taking the environmental parameter (temp, pH, DO, soil salinity). My experimental design is sampling in only one place and with only one plot. Within the plot, I divided into 4 subplots to get 6 replications of parameter readings in each subplot. How can I determine the relationship between environmental parameter and aboveground biomass ? can I perform Correlation test?

Mangrove plants survive in the intertidal zone.

We are working in the wood anatomical description of some species of Ecuadorian mangroves. However, we are dealing to recognize some anatomical features.

Can anyone tell me what is the name of these two features indicated by the arrows in the following anatomical images, we found same features in two types of mangroves Palo salado (Laguncularia racemosa .L) and Jeli (Avicennia germinans L.)

Kind regards,