These straps are used to bind the batim to one's arm/hand (Tefillin shel Yad) and to one's head (Tefillin shel Rosh) in obedience to Deuteronomy 6:8 (And thou shalt bind them for a sign upon thine hand, and they shall be as frontlets between thine eyes).
Given that a single mangrove area can produce as much as four tons of detritus per year, the mud crab's work as a decomposer is a primary part of the detritus-based food ecology that supports fisheries populations.
What is DECOMPOSER? Any of heterotrophic organisms, such as soil bacterium, fungus, or invertebrate, that break down organic material from dead organisms. Part of digested materials is used for their own energetic needs. Simple substances are released to be absorbed and used by producers. DECOMPOSER: Many decomposers are microscopic in size.