l
, …
Summarized.
The regression of the Posidonie could haveheavy consequences on the natural
'
_
balance if the proteCtive measures are not respected. To this effect, we have approach -
the survey of the phenomenon of eutrophiSation in the bay of Annaba seen
the presence
of several polluting sources, one study/ng the morphology of the herbanum to pos:donie
P. oceanica as well as the analysis of’his/her/its chlorOphy/I. The survey to been carried
on 2 beaches situated to the west of the bay of Annaba for their abundance in posidonie:
the beach Carob, and the beach Club of the sea.
.
: _
The monthly measure of the physico-chemical parameters: the temperature and the
saltineSs, important parameters abiotiques in which P. oceanica presents sensitivity in his.
propagation. The gotten results show that:
'
,
The temperatures and the middle year/y saltiness of waters are steady since one
decade with respective/y 22°C and 37.8 %o.
The epiphytes that covers the leaves of posidonie, the lengths and the number of
“
leaves is more numerous in the Carob that in the
Club.
_
The results of the phéndl0gie
length of the leaves in the gu/f is more
_
important than the one general/y met in Mediterranean it often reaches the 500 mm.
__
_
.
The number rose of
in the 2 stations .of survey shows that the È_
herbarium to P. oceanica especially constitutes a place of spawning—ground and nurseries
for fish and the sea urchins.
,
.
,
-
Thé
Chlorophy/l is of 8.91 mg / cool matter g in beach the Carob
_
and 11.99 mg/ g in the Club of the sea.
.
The extraction of the chlorophyl/ shows thatthe ratio indicatory a/b of tolerance is
-
raised more in the beach the carob that in the club of the sea with respective/y 1.42 mg /
cool matter 9 and 1.36 mg / cool matter g.
,
Thus, we can conrm the existence of a great deal of herbaria dense with 226.3
bundle / m2 in the bay of Annaba- This indicator fundamental of the state of health of the
coast/[ne also allows us to consider that the coast/ine ofAnnaba doesn't remain on this
day or pol/uted little.
.
_
_
Kewords: Eutrophisation, posidonie, Mediterranean, pol/ation.
—
126
, …
Summarized.
The regression of the Posidonie could haveheavy consequences on the natural
'
_
balance if the proteCtive measures are not respected. To this effect, we have approach -
the survey of the phenomenon of eutrophiSation in the bay of Annaba seen
the presence
of several polluting sources, one study/ng the morphology of the herbanum to pos:donie
P. oceanica as well as the analysis of’his/her/its chlorOphy/I. The survey to been carried
on 2 beaches situated to the west of the bay of Annaba for their abundance in posidonie:
the beach Carob, and the beach Club of the sea.
.
: _
The monthly measure of the physico-chemical parameters: the temperature and the
saltineSs, important parameters abiotiques in which P. oceanica presents sensitivity in his.
propagation. The gotten results show that:
'
,
The temperatures and the middle year/y saltiness of waters are steady since one
decade with respective/y 22°C and 37.8 %o.
The epiphytes that covers the leaves of posidonie, the lengths and the number of
“
leaves is more numerous in the Carob that in the
Club.
_
The results of the phéndl0gie
length of the leaves in the gu/f is more
_
important than the one general/y met in Mediterranean it often reaches the 500 mm.
__
_
.
The number rose of
in the 2 stations .of survey shows that the È_
herbarium to P. oceanica especially constitutes a place of spawning—ground and nurseries
for fish and the sea urchins.
,
.
,
-
Thé
Chlorophy/l is of 8.91 mg / cool matter g in beach the Carob
_
and 11.99 mg/ g in the Club of the sea.
.
The extraction of the chlorophyl/ shows thatthe ratio indicatory a/b of tolerance is
-
raised more in the beach the carob that in the club of the sea with respective/y 1.42 mg /
cool matter 9 and 1.36 mg / cool matter g.
,
Thus, we can conrm the existence of a great deal of herbaria dense with 226.3
bundle / m2 in the bay of Annaba- This indicator fundamental of the state of health of the
coast/[ne also allows us to consider that the coast/ine ofAnnaba doesn't remain on this
day or pol/uted little.
.
_
_
Kewords: Eutrophisation, posidonie, Mediterranean, pol/ation.
—
126