INCREASING CARBON DIOXIDE CONCENTRATION AND TEMPERATURE ON GROWTH AND HISTOPATHOLOGY OF TROPIC MACROALGAE Halimeda sp

. Sahabuddin, Jamaluddin Jompa, Nita Rukminasari
https://doi.org/10.29244/jitkt.v7i2.11118

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Issue
Vol. 7 No. 2 (2015): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Accepted
5 February 2016
Published
24 February 2016
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Abstract

The increasing CO2 concentration and temperature affected growth, chlorophyll content, calcium content, and histological tissue of tropical macroalgae Halimeda sp. The study was conducted to examine the interaction effect of the increased CO2 concentration and temperature on growth, chlorophyll-a content, calcium content, and histological tissue of tropical macroalgae Halimeda sp in a laboratory. Research was set with a completely randomized factorial design at 3 levels of factors (A) the CO2 concentration: 385 ppm (ambient), 750 ppm (medium), 1000 ppm (high), and 3 levels of factor (B) the temperature: 30oC, 32oC, 34oC. Microcolony of macroalgae Halimeda sp were selected and obtained from the Lae-lae island then growing in the aquarium 30 x 30 x 45 cm3. Biological parameters observed were growth rate (total, specific and relative), chlorophyll-a content, calcium content, and histopathology tissue. The results showed that the increased of CO2 concentration and temperature negatively affected on the growth of Halimeda sp, reduced of the growth rate, the chlorophyll-a content, calcium content and  damaged  to histopatology tissue of the Halimeda sp at trophical macroalgae.

Keywords: CO2  concentration, temperature, growth response, histopathology, Halimeda sp

Authors

. Sahabuddin
Balai Penelitian dan Pengembangan Budidaya Air Payau, Maros.
s.abud_din@yahoo.co.id (Primary Contact)
Jamaluddin Jompa
Fakultas Ilmu Kelautan dan Perikanan Universitas Hasanuddin, Makassar.
Nita Rukminasari
Fakultas Ilmu Kelautan dan Perikanan Universitas Hasanuddin, Makassar.
Sahabuddin., JompaJ., & RukminasariN. (2016). INCREASING CARBON DIOXIDE CONCENTRATION AND TEMPERATURE ON GROWTH AND HISTOPATHOLOGY OF TROPIC MACROALGAE Halimeda sp. Jurnal Ilmu Dan Teknologi Kelautan Tropis, 7(2). https://doi.org/10.29244/jitkt.v7i2.11118
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