Due to the lack informations on Biochemical of jellyfish in the Syrian waters, the
aim of this paper is determining the nutritional value and organic content for each of the
species Rhopilemanomadica, Pelagianoctiluca and Aequorea forskalea, and co
mpared the
biochemical composition of the three types , so the comparison showed clear differences in
the content of organic material, the sugar were the most concentrated in the three species
and lipid comes in second class, and then followed by the protein content and organic
carbon.A.forskalea was the most containing sugar and R.nomadica the most lipids content,
and P.noctiluca were the most protein content.R.nomadic was the highest content in
organic carbon, R.nomadica and P.noctiluca were convergent contents of organic
phosphorus, while the least contain of organic nitrogenwas in A.forskalea.
The biochemical composition of some species of Phaeophyceae (Cystoseira):
Cystoseira compressa, Cystoseira barbata, Cystoseira elegans, Cystoseira amentacea,
Cystoseira barbatula, Cystoseira caespitosa, have been studied. The algal specimens have
been collected from Ibn Hani coast north of lattakia in spring 2014. The soluble sugar
varies between (13- 56.78%) weight/dry weight [w/dw]. C.amentacea has the highest
content of proteins (21.76%), and C.barbata has the lowest (9.51%). Lipid varied between
(1.25- 5.55%) [w/dw]. The highest content of ash was in C.caespitosa (31.18%), and the
lowest in C.amentacea (23.84%). Iodine was: C.compressa and C.caespitosa (0.68 %),
C.barbata (0.69 %), C.barbatula (0.7%), C.amentacea (0.71%), C.elegans (0.8%).
Mannitol was within the range (2.91-4%) [w/dw]. Results of biochemical composition of
studied species showed the differences between the percentage of values, and this variety
affects on the economical value for the species, also affects on the major herbivorous food,
that affects on their environment and their community composition.
