The edible seaweed Caulerpa lentillifera, a powerful natural food source that is rich in protein, minerals, dietary fibers, vitamins, saturated fatty acids and unsaturated fatty acids, has been mass cultured in some Asian countries and has been the focus of researchers in recent years. Here, the operational conditions of its culture, application in wastewater treatment, and bioactive components are summarized and comparatively analyzed.Scientific evidence for warming of the climate system is unequivocal.- Intergovernmental Panel on Climate ChangeThe current warming trend is of particular significance because most of it is extremely likely (greater than 95 percent probability) to be the result of human activity since the mid-20th century and proceeding at a rate that is unprecedented over decades to millennia.Earth-orbiting satellites and other technological advances have enabled scientists to see the big picture, collecting many different types of information about our planet and its climate on a global scale. This body of data, collected over many years, reveals the signals of a changing climate.The heat-trapping nature of carbon dioxide and other gases was demonstrated in the mid-19th century. Their ability to affect the transfer of infrared energy through the atmosphere is the scientific basis of many instruments flown by NASA. There is no question that increased levels of greenhouse gases must cause the Earth to warm in response.
Environmental Sciences, Vol. 4, 2016, no. 1, 23 - 29
HIKARI Ltd, www.m-hikari.com
Cultivation of Caulerpa lentillifera Using Tray and
Sowing Methods in Brackishwater Pond
Maria Danesa S. Rabia
Bohol Island State University
Calape, Bohol, Philippines
Copyright © 2015 Maria Danesa S. Rabia. This article is distributed under the Creative
Commons Attribution License, which permits unrestricted use, distribution, and reproduction in
any medium, provided the original work is properly cited.
Commercial cultivation of Caulerpa lentillifera is now gaining recognition
because of the increasing demand in the domestic and international market.
Studies on the different culture methods for large scale production of the species
in the country are scarce. The present study evaluated the effects of two
cultivation methods namely sowing and tray on the growth and biomass
production of C. lentillifera cultured in brackishwater pond. For the tray method,
propagules were clipped in two 0.75 m x 0.75 m tray and were hung in bamboo
frame whereas for the sowing method, propagules were planted directly in the
pond substrate with an interval of one meter. The weight gain using the sowing
method was significantly higher and could be translated to an average of 1 kg
every month of new or harvestable biomass. Specific growth rate of C. lentillifera
grown in the substrate was at 3.85% day-1 during the first month and at 2.92%
day-1 during the second month and was significantly higher compared to that of
stocks grown in trays. High organic load of the soil (substrate) could have
improved growth and biomass productivity. The results show that cultivation of
C. lentillifera using the sowing method is more effective. This system has
significantly contributed to increase in biomass yield. Moreover, this method of
farming entails lesser capital outlay without any other material requirements such
as bamboos and trays.
Keywords: Caulerpa le