About the data

Surveys, a model and a yearly satellite record, not a feed: the inputs change when a paper, a report or the coastline does.

How old each input is

a year means a reference source, not a feed

Seaweed

Sites and zones

3 h agoeach run · 25 Oct

274 sites, 108 stretches of water, 1,12,140 ha

CMFRI site survey

2020MFIS 246

274 of 317 sites could be placed from their names and descriptions

Farm economics

2023CMFRI, Johnson et al.

yield, cost and price per raft, in 2023 rupees

Satellite picture

27 Sept 2026Sentinel-2 mosaic

the picture under the map near the sites; not a monitoring feed

Mangroves

Yearly mangrove record

2025newest year · published 13 Jul 2026

Global Mangrove Watch: mangrove or not for every 30 m square, every year from 1985

Forest Survey figures

2023State of Forest Report

mangrove cover by State and district for 2021 and 2023; made from 23.5 m imagery

Planting record

9 Octread

Mangrove Cell, Maharashtra: 104 site boundaries with planting year and reported survival, for 82 projects

Before and after pictures

12 Marlatest view · Sentinel-2, 10 m

one clear dry-season view before planting and one recent; pictures only, no number is taken from them

Carbon per hectare

2000the year both maps describe

soil to one metre and above-ground biomass, each at 30 m; IPCC default factors beside them

Fishing villages

2016Marine Fisheries Census

fishing villages, families and families below the poverty line, by district

What CMFRI counted, by state

hectares of potential seaweed farming area in the survey

Gujarat10,316 haTamil Nadu5,048 haMaharashtra2,724 haKarnataka1,579 haOdisha1,525 haAndhra Pradesh1,215 haDiu700 haWest Bengal450 haLakshadweep213 haGoa120 haKerala80 ha

38 coastal districts carry at least one site.

Sources

every number on both readings comes from one of these

ICAR-CMFRI, MFIS 246 (2020)seaweed sites and potential area ICAR-CMFRI, Johnson et al. (2023)the farm: yield, costs, price Global Mangrove Watchyearly record of mangrove extent, 1985 to 2025 · © Global Mangrove Watch Forest Survey of India, State of Forest Report 2023mangrove cover by State and district Mangrove Cell, Maharashtraplanted sites: boundaries, years, reported survival · read 9 Oct 2026 Sentinel-2 L2ACopernicus · the pictures on both maps OpenStreetMap · geoBoundariescoastline and land polygons (ODbL); neighbouring countries' outlines LGD · Survey of Indiadistricts, villages and the outline IPCC 2019 RefinementVol. 4, Annex 4: biochar durability Troell et al. 2022; Hurd et al. 2022seaweed carbon: stored versus taken up Mishra and Mantri 2026the ice-ice disease collapse Sanderman et al. 2018mangrove soil carbon to one metre, 30 m Simard et al. 2019, NASA ORNL DAACmangrove above-ground biomass for 2000, 30 m IPCC 2013 Wetlands Supplement, chapter 4default factors for mangrove biomass, growth and soil Song et al. 2023carbon in replanted and newly planted mangrove CHIRPS 2.0yearly rain, 2011 to 2020: dry coast or wet ICAR-CMFRI, Marine Fisheries Census 2016fishing villages and families by district Sarkar et al. 2024household income survey, Indian Sundarbans Economic Survey of Maharashtra 2025–26the State's mangrove livelihood scheme Carbon Market Watch (2024)benefit sharing in carbon projects, as reported in The Conversation, 2 Oct 2026 ESA WorldCover 2021land cover at 10 m: which lost mangrove ground is open land today · © ESA WorldCover project 2021, CC BY 4.0 Mangrove Cell, Maharashtra: money spent per sitethe cost of planting a hectare BeZero Carbon, quoted by Cloverly (28 Feb 2025)prices blue carbon credits have traded at FBIL reference rate, 9 Oct 2026rupees to the dollar Green Climate Fund, UNDP, Parliament repliesmangrove landscapes and villages named without a boundary

Not connected yet

named here so no page implies it exists

Water conditions

salinity, temperature and clarity at each seaweed site, by month

needs an ocean-colour and SST feed checked against site surveys

Farms seen from space

rafts actually in the water, counted per season

needs sub-metre imagery; rafts are 3.6 m across

Permissions

where a state has leased or notified water for seaweed

no open register

Prices

this season's farm-gate price for dried seaweed

no published series; the 2023 figure stands

MISHTI plots

22,560 ha of mangrove reported under the national scheme in 2023–25, 19,220 of them in Gujarat

plot boundaries sit on the ministry's afforestation dashboard behind a login

Green Climate Fund plots

3,114 ha reported by 2024 against a target of 10,575; the landscapes are named

the planted plots are not published

Other States' planting

Gujarat, Odisha, Andhra Pradesh, West Bengal and Tamil Nadu report hectares by district or State

the national register of compensatory plantations asks each visitor to prove they are a person, and has not been read in bulk

Carbon projects

Verra's registry lists six mangrove carbon projects in India, the largest registered one 4,675 ha; Gold Standard lists none (both read 9 Oct 2026)

cited for comparison only; no figure or status on the map comes from a registry

How to cite

cite as "Maplore Blue Gold, maplore.in/bluegold, data as of 25 Oct 2026"