4 th IGEOS – International Geography Seminar and PIT IGI 2020
Cimandiri Estuary Zonation Based on Sea Surface Salinity from Sentinel-2 Imagery and its Relation with the Catching Spots Distribution of Anguilla spp. Larvae
TRIANA DEVI PRATIWI*, S. SUPRIATNA, IQBAL PUTUT ASH SHIDIQ
DEPARTMENT OF GEOGRAPHY, FACULTY OF MATHEMATICS AND NATURAL SCIENCES, UNIVERSITASINDONESIA
Introduction
Estuary is a
transition zone
between the river
environment and
the marine
environment [1].
Estuary zone is
determined based
on the salinity
value which
ranges from 0.5-
30 ppt (part per
thousand) [4].
Temporary
inhabitant biota
according to
[7] is in the
form of adult
shrimp and fish
larvae.
One of the
factors that affect
the life of
Anguilla spp.
larvae is salinity
[8].
Method
Results and Discussion
Results and Discussion
Results and Discussion
Conclusion
The farthest limit of estuary boundary from the mouth of the Cimandiri river is 1.5 km in dry month. Meanwhile, in the wet month the estuary zone boundary farthest from the mouth of the Cimandiri river is 3.6 km. The difference in the distance between the estuary zone in the dry and wet months is due to the difference in the amount of rainfall.
The catch of Anguilla spp. larvae in the dry month is 1 kilogram a day, while in the wet month it only reaches 100-300 grams at the same location. The catching location for eel fish larvae is in areas with surface salinity values of 5-15 ppt. This is related to the distribution of salinity values in the Cimandiri Estuary area. In the wet month, the distribution of salinity values in the range of 0.5-30 ppt is wider but the catch is less. Meanwhile, in the dry month, the distribution of salinity values in the range of 0.5-30 ppt is smaller, but the catch of eel fish larvae is more.
References
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