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Variety Eucheuma denticulatum var. endong Trono & Ganzon-Fortes, Environment. marine. Original description. Not documented. Descriptive notes. Eucheuma denticulatum (Burm.f.) Collins & Herv Indonesia: agar-agar, agar besar (common names for all Eucheuma and Kappaphycus spp.). Fig. 1. Eucheuma denticulatum branch showing the cylindrical axis with rings of spinous primary initially-determinate branches, some of which have become.

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This table shows that if a crop indexed at 0. Medium-sized Siganus species will attack a thallus here and there among the euchfuma on a farm and remove the normally reddish to greenish olivaceous brown cortex leaving a still-living white skeleton which, as though displaying a heroic ice-ice symptom, disintegrates in a few days. Navigation menu Personal tools Log in Request account.

Values are in Malayaian dollars. Daily growth in E. The others are almost all farmed. Various other radicals may be attached especially at 6-carbon positions. Harvest optimization of four Kappaphycus species from the Philippines.

The onset is a sharply limited greening of a segment which, the next day, is clearly green and in one or very few more days very pale, then white. Human feelings about turtles are very strong in different places in very different ways. Longline, known as tie-tie in the Philippines, is the most common method used to cultivate K. This general die-off phenomenon has been thought due to pools of fresher water forming off the mouths of the large rivers that drain into the sea along the north shore of Borneo i.

Eucheuma was first distinguished as a genus and named by J. In the slowing of growth, described above, there have been cases of nematodes attaching in great numbers to the decadent thallus surface.

Seasonal farm production data is undependable because of the lag between the time the seaweed is harvested and the time it reaches a level in the market chain where the quantity can be measured consistently. Lyon Arboretum Lecture Number Eleven. Collect1 1 4: Thus today one uses E.


The values are mean microgram atoms per liter from all weekly measurements made over the 55 weeks of a study period. Eucheuma cultivation continues to expand, with the most commonly cultivated types being Kappahycus alvareziiEucheuma striatum and Eucheuma denticulatum.

Gmelin Weber Bosse Productivity can be particularly high where there is freshwater run-off from land during the wet season. By using this site, you agree to the Terms of Use and Privacy Policy. Likewise, the daily growth rates of K.

New Methods on Cultivation of Eucheuma denticulatum and Kappahycus alvarezii in Indonesia

Especially seasonally, the mature size may be Figure dentkculatum much larger. Water motion is most important. They are similar among other Eucheuma species. Commercial cultivation of K. Manual on farming of Denticulahum spinosum. The schools are gradually decimated as the individuals lengthen. Notably in one African country a monopoly has resulted in no development of farming and apparently no increase in export during the past 20 years.

The size of large mature Eucheuma thalli make it practical to handle, tie in place, tend and harvest individuals. However, most specimens used in phycoculture are sterile and propagate by fragmentation.

Eucheuma denticulatum () Collins & Hervey :: Algaebase

This can be a bad pest, but it appears to be restricted to near or within sea grass, Enhalus acoroides or Thalassia hemprichiicommunities. Three approaches are in use for water removal after centrifugation, filtering and sometimes vacuum removal of some water: Monographias Biologicas Marinas, 37 p. Eucheuka SGR of 2. Today, many instant foods that come in powdered form for mixing with cold milk to make them comestible owe their speed and permanence of suspension to the carrageenan modification they contain.


The species was originally described in as Fucus denticulatus by Nicolaas Laurens Burman and in transferred to the genus Eucheuma by F. In most cases the affected parts decay, leading to fragmentation and losses. A new approach for U.

However, the growth was noted to decline when the deniculatum was continued for 59 days It is obvious that in starting a farm, the farmer should plant the largest thalli feasible. The farms are on reef flats or other horizontal bottoms near extreme low-water level. It is used as garnish for other dishes such as fish.

At greater depths the species may change in morphology as though etiolated in a phycological sense. Some denticulatu, may occur during shipment, probably mainly due to losses of moisture. Spinosum has many tips at right angles to the stems on which they are borne and is often seen with apical attachments to a wide range of objects including other Eucheuma thalli.

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A second malaise is “pitting,” the formation of a cavity penetrating the cortex in one place and expanding in the medullary regions beneath. However, the largest volume of alkali-treated Eucheuma is in pet foods where it echeuma used as a powdered, granulated or hydrated gel component in the various formulations.

Diploid sporeling of Eucheuma alvarezii about fifteen days old. The harvested crop of E. In two other countries government has entrusted development to innocent hands that despite goodwill have been unable to move to the economic export level. Agardh, has no standing Dixon in view of the priority of Burman’s epithet, a priority acknowledged by Linnaeus himself.