The blended pulp of halophila ovalis produced the highest modulus elasticity paper of 854. While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. Halophila spinulosa tercatat di daerah riau, anyer, baluran, irian jaya. It is a small herbaceous plant that occurs in sea beds and other saltwater environments in the indopacific the first description of the species was by robert brown as caulinia ovalis, this was transferred to the genus halophila by joseph dalton hooker in flora tasmaniae. Lateral shoots glabrous, minute or not developed at all. All seedlings raised by various laboratory culture methods died at the second or third leaf stage. Halophila spp, to the large enhalus acoroides brouns. We examined the effects of simulated light and intensive grazing by dugongs and cropping by turtles on eight nutritionally relevant measures of seagrass chemical composition over two regrowth periods shortterm, 14 months. The dominant seagrass was zostera capricorni aschers. Pdf two morphotypes of halophila spinulosa were collected from ilacaon island, negros occidental, philippines. Begitu pula halophila decipiens baru ditemukan di teluk jakarta. Seagrasses are a functional group, not a taxonomic group, of angiosperms flowering plants, i.
Gambar 3 halophila ovalis gambar 4 halophila spinulosa lamun. However, it is not a legal authority for statutory or regulatory purposes. Species composition and plant performance of mixed. Halophila tricostata confusion may arise between h. Reproduction and recruitment of the seagrass halophila. The number of its contained species, and its own placement in the order alismatales, has evolved it is widespread in tropical waters, the distribution range also extends to subtropical and temperate waters primarily the indian and pacific oceans but also the mediterranean. Annaletchumy and others published morphology of halophila ovalis r.
Find, read and cite all the research you need on researchgate. The smoothsurfaced, paddleshaped, paired leaves, without serrated leaf margins, were typical of h. Thalassia hernprichii halophila ovalis cymodocea rotundata syringodium isoetifoliurn. A survey of intertidal seagrass from van diemen gulf to. A survey of intertidal seagrass from van diemen gulf to castlereagh bay, northern territory, and from gove to horn island, queensland pdf 2. The sterol and fatty acid compositions of fresh leaves of the seagrasses cymodocea serrulata, enhalus acoroides, halodule uninervis, halophila ovalis, h. Macro and micro nutrients of tropical seagrasses, halophila ovalis, h. Plants are dioecious with male and female flowers produced at each leaf node. There is evidence that dugongs use specialised habitats for various activities such as calving and mating anderson, 1981.
Files are available under licenses specified on their description page. The latest seagrass found in police beach 1, pulau gaya is halophila spinulosa and the total number of seagrass species known in sabah becomes eleven japar sidik, 1999. The species is has been recorded in unconsolidated sediments across the eastern gulf of mexico the west florida shelf, distributed widely and attaining highest densities in this geographic region. Halophila ovalis, commonly known as paddle weed, spoon grass or dugong grass, is a seagrass in the family hydrocharitaceae. Halorhodospira halophila s photoactive yellow protein pyp is a bluelight sensor that, upon detection of blue light, induces the organism to swim away. Evidence of this species for indonesia was collected from four locations, including sekotong beach, lombok, tayando island, tual, weduar kei besar beach, tual, and malala bay, tolitoli, at a depth of 24 m. An hoplosmia spinulosa in uska species han megachilidae nga syahan ginhulagway ni kirby hadton 1802. Relationships between seagrass biodiversity and infaunal. Pdf distribution and significance of seagrass ecosystems. The purpose of this study was to examine the relationship between species diversity and distribution of seagrasses and various environmental water quality factors. Halophila baillonis, commonly known as clover grass, is a sea grass of the genus halophila.
Avh is a collaborative project of the state, commonwealth and territory herbaria, developed under the auspices of the council of heads of australasian herbaria chah, representing the major australian collections. Recovery plan for johnsons seagrass halophila johnsonii. Mcmahon k, statton j andlavery p 2017 seagrasses of the northwest of western australia. Rhizomes are creeping, branched and fleshy, and roots appear solitary at each node of the rhizome, unbranched and thick with dense soft root hairs. Este artigo sobre monocotiledoneas, integrado no projeto plantas e um esboco.
Pdf macro and micro nutrients of tropical seagrasses. As indicated in these studies, they focus either on a. Parsons tr, maita y, lalli cm 1984 a manual of chemical. Life history attributes of dugongs are likely to vary across its range of habitat types. Halophila stipulacea is a euryhaline marine angiosperm, also known as a seagrass. This seagrass is widespread through the gulf of aqaba. Recently it has arrived in the caribbean where it is also spreading. Halophila spinulosa at hay point was a marginal species and. The seagrass bed at pulai river estuary is the largest in malaysia with an approximate size area of 3. Halophila decipiens is the only tropical circumglobal seagrass, living subtidally at approximately 6. Halophila ovalis is a beautiful species of sea grass native to asia and the south pacific.
Pdf morphological differentiation of two morphotypes of. Brown ascherson hs halophila sulawesii kuo hsl keterangan. Brown ascherson 33 thalassia hemprichii ehrenberg ascherson 33 literature cited 39 in. Dynamics of a deepwater seagrass population on the great. Sighting data download kml csv geojson species details kingdom plantae plants class equisetopsida land plants family hydrocharitaceae scientific name halophila spinulosa r. Stone halophila stipulacea is a seagrass native to the indian ocean that spread into the mediterranean after the opening of the suez canal. Zostera capricorni i0 12 14 16 18 24 26 28 30 32 34 36 38 40. Title population estimate and foraging niche of dugong. Halophila spinulosa lamun jenis halophila ovalis gambar 3 mempunyai ciri umun. Green eagrasses are a mixed group of flowering plants which grow submerged in shallow marine and estuarine environments worldwide. The main seagrasses in shallow waters near townsville are halophila ovalis, halophila spinulosa, halodule uninervis, zostera capricorni and. An efficient method for estimating seagrass biomass. Ascherson from ilacaon island, negros occidental, philippines article pdf available january 2015. Grazing by dugongs and cropping by green turtles have the capacity to alter the subsequent nutritional quality of seagrass regrowth.
Macro and micro nutrients of tropical seagrasses, halophila. Map of davao gulf showing the occurrence and distribution of seagrass species new argao has the highest species richness of 12, dominated by. Plantae plants equisetopsida land plants hydrocharitaceae halophila spinulosa. It is commonly referred to a spoon grass or paddle weed. Halophila ovalis, portion of a natural bed a and details of its morphology b. The size of halophila ovalis shoots decreased by 30% when both t. Seagrasses of the genus halophila thouars hydrocharitaceae. Halophila spinulosa at hay point was a marginal species and was only detected during three of the twenty three sampling periods and at. Eight species are found in governor generoso dominated by cymodocea species. New argao has the highest species richness of 12 dominated by halophila species followed closely by talicud with 11 species dominated by thalassia and halophila. Photos of fern seagrass for free download from wildsingapore flickr. Aschers, phosphoglycerate and other c3 cycle intermediates predominated among the early labeled products of photosynthesis in 14clabeled seawater more. According to lbiis studies, the existing mangrove forest is found in the following areas.
Peyton c a department of natural resources and the environment, university of new hampshire, jackson estuarine laboratory, 85 adams point road, durham, nh 03824, usa. Morphology of germinating seeds of the seagrass halophila. The plants grow from a single rhizome and prefer shallow, calm protected habitats but can be found as deep as 80 feet. Halophila tricostata hydrocharitaceae, a new species of. Halophila e um genero botanico pertencente a familia hydrocharitaceae. Paper from seagrass fiber, bioresources 112, 53585380. Thick wall fiber is more advantageous in tearing strength as it is stronger, flexible, and does not flatten during sheet forming compared to thin wall fiber. Chapter 3 natural resources 39 the area covered with mangrove forest is about 508 ha. Louis marie aubert du petitthouars, genera nova madagascariensia 2. Lamun jenis halophila spinulosa gambar 4 mempunyai ciri umun. Fiber characteristics and papermaking of seagrass using hand. All structured data from the file and property namespaces is available under the creative commons cc0 license. Halophila major zollinger miquel 1855 has not been officially recorded as a species that exists in indonesia until now.
The homologies of the various organs of the graminaceous embryo and caryopsis have been the subject of much debate in the past. The university of minnesota is an equal opportunity educator and employer. There continues some debate in the literature and between seagrass taxonomists on the details particularly below sub class on the correct classification. Morphological differentiation of two morphotypes of the seagrass halophila spinulosa r. Halophila is a genus of seagrasses in the family hydrocharitaceae, the tapegrasses. Three 3 seagrass species were found along sungai johor which identified as halophila ovalis, halophila spinulosa and enhalus acoroides. It occurs in the caribbean area and is listed on the iucn red list as vulnerable due to its naturally rare occurrence and fragmented populations. Abstract the threatened seagrass halophila johnsonii. The australasian virtual herbarium avh is an online resource that provides immediate access to the wealth of plant specimen information held by australian herbaria. Tiga jenis lainnya, yaitu halophila sulawesii merupakan jenis lamun baru yang ditemukan oleh kuo 2007, halophila becarii. Genetic identification and evolutionary trends of the seagrass. Both morphological and genetic analyses of the halophila species collected in salt pond, antigua determined it to be h.
Monoecious or dioecious small rhizomatous submerged marine andor estuarine perennials. The seagrass bed at pulai river estuary is the largest in malaysia with. The type species lectotype of the genus halophila is halophila. An experimental test of the occurrence of competitive interactions. The major fatty acids were palmitic acid, linoleic acid and linolenic acid as expected. There continues some debate in the literature and between seagrass taxonomists on the details particularly below sub. In the townsville area, there are many seagrass meadows along cape cleveland, the strand, cape pallarenda and around magnetic island.
Rediscovering halophila major zollinger miquel 1855 in. Halodule and halophila seagrass grow intertidally and subtidally. Jacquesfelix1, who recently summarized again the various theories. Halophila decipiens, habit a and details of leaves b photocourtesy. Fiber characteristics and papermaking of seagrass using. Data in a recent paper by short, moore, and peyton 2010 indicate that h. Our finding is the first report of the indopacific seagrass h. Records of sea grasses halophila ovalis and zostera japonica off uozu city, toyama prefecture. The distribution and status of seagrasses global overview the distribution and status of seagrasses m.
Halorhodospira halophila also has a potential role of hydrogen production through nitrogen fixation via nitrogenase, which will be further explained below. Guidelines for teamseagrass singapore participants pdf. Dynamics of a deepwater seagrass population on the great barrier reef. Tropical seagrass as a bioindicator of metal accumulation. Halophila stipulacea is a seagrass which has been introduced to the mediterranean and more recently the caribbean most likely through fragments transported by commercial and recreational shipping. Pdf morphological differentiation of two morphotypes of the. Herbarium images are portable document files pdf and require acrobat reader for viewing. The first flowers were observed at the end of may and the last seed capsules were seen at the end of august.
Halophila ovalis in the tropical atlantic ocean frederick t. Pdf occurrence and seasonality of halophila decipiens ostenfeld. An hoplosmia spinulosa in nahilalakip ha genus nga hoplosmia, ngan familia nga megachilidae. Prepared by the johnsons seagrass recovery team for the national marine fisheries service, silver spring, maryland. Halophila minor showing the edge of its bed as it creeps seaward a. The sterol and fatty acid compositions of seven tropical. Spectral characteristics of seagrass with landsat tm in. Other recent papers using molecular techniques have also failed to clearly differentiate the species.
The total seagrass biomass in the study area was estimated at 2145. However, lbii claimed that this is an overestimate based on aerial survey and ground truthing observations. As indicated in these studies, they focus either on a single geographic location or a single genus of. Identification of the seagrass to species level permitted an. Laboratory germination of field harvested seeds of halophila spinulosa r. Download pdf download all download jpeg 2000 download text. Gambar 3 halophila ovalis gambar 4 halophila spinulosa.
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