she smells sea
Hi, Im gonna post some organisms that I found in seashore of Klara (Kelapa Rapat Lampung) when we had PKL some weeks ago. I've tried to identify them. Some short descriptions I took from related site but all images are originally mine.
Lets smell sea...
Halimeda sp.
Kingdom : Protista
Divisio : Chlorophyta
Class : Bryopsidophyceae
Order : Bryopsidales
Family : Halimedaceae
Genus : Halimeda
Spesies : Halimeda incrasta
(J.V.Lamouroux, 1812)
Description: Halimeda are green calcareous algae found worldwide and used as decorative plants in the marine aquarium. Various references will place Halimeda in the Halimedaceae, Udoteaceae, or Codiaceae family. The irregular oval segments of Halimeda appear as several small green coins glued from end-to-end, forming a chain. For this reason, Halimeda may also be called the Money Plant. Calcareous algae deposit limestone (calcium carbonate) in their tissues. When the algae dies, the calcium carbonate is left as sediment in tropical lagoons and reefs.
In the wild, the Halimeda grow in thick clusters that can range from one inch to several feet in diameter. Halimeda are generally hardy in the right conditions, and few fish will feed on them. In addition to light, they require sufficient calcium to grow. They are not as tolerant of high nitrate or phosphate levels compared to some other algae. They also do not tolerate extensive pruning.(see here)
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Padina sp.
Kingdom : Protista
Divisio : Phaeophyta Class : Phaeophyceae Order : Dictyotales Family : Dictyotaceae Genus : Padina
Spesies : Padina sp.
Description: A bunch of funnel-shaped structures. Each funnel about 3-5cm in diameter, with concentric circles of tiny hairs and a rolled edge. The funnel is often torn at the edges. The bunch is usually attached to a hard surface and spreads out like a beautiful bouquet when submerged. Golden brown, sometimes with a bluish or whitish tinge. The white tinge is from the calcium carbonate incorporated in the blade. Padina is the only brown seaweed known to incorporate calcium. According to AlgaeBase: there are more than 30 current Padina species.(see here)
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Sargassum sp.
Kingdom : Protista
Divisio : Phaeophyta
Class : Phaeophyceae
Order : Fucales
Family : Sargassaceae
Genus : Sargassum
Spesies : Sargassum sp.
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Gracilaria sp.
Kingdom : Protista
Divisio : Rhodophyta
Class : Florideophyceae
Order : Gracilariales
Family : Gracilariaceae
Genus : Gracilaria
Spesies : Gracilaria sp.(Greville, 1830)
Description: Plants of the largest species can reach 60 cm in length. Thalli range from erect to prostrate and from terete to broadly flattened. Some species form articulated fronds composed of cylindrical or irregularly shaped units. The apical structure of the type species has been demonstrated by Kling & Bodard (1986) to be uniaxial, although too compact to be easily interpreted. Procarps, fusion-cell formation, and early gonimoblast development are typical of the family. In most species, nutrient tubular cells connect the gonimoblast to cells of the inner pericarp. Carposporangia occur in chains, and cystocarps are strongly protuberant. Spermatangia have been reported to form in one of 3 taxonomically important patterns (Bird and McLachlan 1984), either as a completely superficial continuum or in sori flush with the outer cortex ("Chorda"-type), in shallow sunken patches ("Textorii"-type), or in deep conceptacular pits ("Verrucosa"-type). Fredericq and Hommersand (1989b) have advocated removal of species with the "Chorda"-type spermatangia to the genus Gracilariopsis (see below). Tetrasporangia are mostly decussate-cruciate and occur both scattered and in nemathecia, according to the species.(see here)
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Caulerpa sp.
Kingdom : Protista
Divisio : Chlorophyta
Class : Bryopsidophyceae
Order : Bryopsidales
Family :
Genus : Ulva
Spesies : Ulva reticulata
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Caulerpa taxifolia |
Kingdom: Protista
Divisio : Chlorophyta
Class : Bryopsidophyceae
Order : Bryopsidales
Family : Caulerpaceae
Genus : Caulerpa
Spesies : Caulerpa taxifolia
(J.V. Lamouroux, 1809)
(J.V. Lamouroux, 1809)
Description: Caulerpa taxifolia is a marine, green alga, a certain strain of which is invading sectors of the western coasts of the Mediterranean Sea where it grows much more robustly than it does in its native range. In the Mediterranean it has spread into thousands of hectares where it fills the water column with hundreds of tons of plant biomass per hectare. It is protected from sea urchins, fish and other herbivores by its toxicity. Caulerpa taxifolia is native to the Caribbean and other tropical seas where it grows in small patches and does not present problems. However, it was reported in 2000 that the Mediterranean Sea strain of the alga was discovered in California waters, where it is not native, and where it may spread as it has in the Mediterranean.
Habit:
- Caulerpa taxifolia is a marine green alga believed to have been accidentally introduced into the Meditteranean Sea
- it forms continuous meadows from the surface to more than 30 m deep; has been found in water to 100 m deep (Boudouresque et al, 1995)
- meadows of Caulerpa taxifolia in the Mediterranean can attain exceptional densities, while in its native tropical seas the plant is usually isolated (Meinesz and Hesse, 1991)
- reproduces by fragmentation; sexual reproduction has not been observed
- at 10 m depth, reported biomass rates up to 700 g (dry weight) m2 (375 tons of wet biomass per acre) (Meinesz et al, 1994)
- Caulerpa taxifolia protects itself by producing substances that are toxic to the Mediterranean's two main macro-herbivores, sea urchins and their eggs (as well as to hamsters and mice) (Lemee et al., 1993), and the fish Sarpa salpa
- toxicity is highly seasonal: highest in July-November, lowest in March-April (see here)
I doubt it, between Ventricularia ventricosa and Valonia ventricosa |
it's bubble algae, it gave me plus 20 points because I could find its name ;) |
wah lebih bnyak dari yg kk dapetin dulu.. yg foto terakhir itu ap mut?
ReplyDeleteheheh iy kak. yang terakhir itu bubble alga, family Valoniaceae antara Ventricaria ventricosa atau Valonia ventricosa msh ragu kak :D
ReplyDeleteHi Adi Mutia!
ReplyDeleteI am Laurel, a Biology student from the Philippines. The seventh species is not a Caulerpa sp., it is Ulva reticulata. Try to search it. :)
Hi Laurel! Nice to know you :)
ReplyDeleteOh yap you're right. Thanks for your correction, I'll correct it. Thankyou again for visiting ;)