Phytoplankton Carbon Stock - Blue Carbon Reservoir of the Blue Planet - page 147

Fig. 5.3 Weight-speci c
absorption spectra of
various in vitro (extracted)
phytoplankton pigments

Table 5.1 Past and present ocean colour sensors and their respective centre wavelengths (nm)
SeaWiFS MODIS MERIS OCM2 OCTS CZCS

412 412 413 415 412 443

443 443 443 442 443 520

490 469 490 491 490 550

510 488 510 512 516 670

555 531 560 557 565

670 547 620 620 667

555 665

645 681

667 709

678

The mangroves, being an important burial site of
carbon, are depleting due to such human activi-
ties. Anthropogenic activities that in

5.2 Assessment of Phytoplankton

Carbon

uence the
climate of the planet Earth are mainly those that
affect

fl

The twenty- of human

population explosion, rapid urbanization and
intense industrialization, leading to change in
land use pattern and shrinkage of aquatic system.
In many parts of the world, man has changed the
original characters of the aquatic ecosystem for
short-term gain; for example, in India, Bangla-
desh, Thailand and the Philippines, man has
arti

rst century is the era

the atmosphere. This encompasses

increased exposures to ultraviolet radiation

(UVR; 280 400 nm) and higher carbon dioxide

levels. The effects of these changes are propa-
gated to aquatic systems through the surface
layer (Sabine et al. 2004 ), where most of the
biological processes that sustain life and bio-
geochemical processes take place. Phytoplankton
play a key role in determining the effects of
environmental change on the surface layer since
they are responsible for dissolved inorganic

-

cially channelized the sea water in the agri-
cultural

eld or mangrove system for culturing
shrimp that require brackishwater for growth.