Here we report metabolic rates gross primary production gpp, respiration r, and net community production ncp in four common species of seagrass halodule uninervis, halophila ovalis, halophila stipulacea, and thalassia hemprichii along latitudinal and thermal gradients in the red sea. Halodule uninervis is a species of seagrass native to the western pacific and indian oceans. Assessment of morphological variation of malaysian halodule. Oct 15, 2019 cluster of ribbonlike curved leaves at the end of an erect stem round, serrated leaf ualodule tough, woody rhizomes with scars from successive shoots very coiled, branched roots typically found in rocky areas with strong reef crests. Pdf the seagrass halodule uninervis is distributed in separate patches along the coast of kuwait but its distribution in the meadows in kuwait. Common names include narrowleaf seagrass in english and ashab bahriya in arabic. Apr 16, 2014 this page was last edited on 3 september 2017, at 18. Degraded habitat of haludule uninervis due to used as boat harbour reduced epiphytes and periphyton reduction of epiphytes on h. Thirtyone species of algae representing 26 genera and three families have been recorded. World register of marine species halodule uninervis. Gambar 3 halophila ovalis gambar 4 halophila spinulosa lamun. Disturbance is an important driver of clonal richness in. Estimation of leaves nutrient content in seagrass using spectral data the case of halodule uninervis by simona serusi thesis submitted to the international institute. One common measure used to describe the clonal structure of populations is clonal richness.
The first regional red list assessment of selected species. Halodule uninervis is a marine, perennial herb that reaches up to 2 cm with a wiry and erect stems. Ludvianto, bayu 1992 a study on the biology of osangularia cf. Michelle is an evolutionary biologist who uses a variety of molecular techniques to investigate seagrasses. Clonal richness is strongly dependent on the biological characteristics of the species, and how these interact with the environment but can. Multispectral resampling analysis indicate that the resampled spectra exhibit similar shape and pattern with the original spectra but less precise, and they lose the unique absorption feature of seagrass species. Do not manuscript, but please send these as separate files. The smallest species, halodule uninervis, provided the smallest biomass fig. Seagrasses are very important, provide habitat for many marine creatures, keep the water clean and trap co2, but they are decreasing. All structured data from the file and property namespaces is available under the creative commons cc0 license. Responses of the seagrass halodule uninervis forssk.
Structural complexity of seagrass bed including species composition and shoot density is argued to be an important factor determining fish assemblages. The seagrass halodule uninervis is distributed in separate patches along the coast of kuwait but its distribution in the meadows in kuwait bay appear to be declining. Halodule pinifolia is said to be differentiated from h. Clonality is common in many aquatic plant species, including seagrasses, where populations are maintained through a combination of asexual and sexual reproduction. Halophila spinulosa lamun jenis halophila ovalis gambar 3 mempunyai ciri umun. Jul 29, 2019 barleria prionitis pdf abstract barleria prionitis linn. Halodule pinifolia miki hartog, halodule uninervis forssk.
When expressed as a function of fresh weight, the rhizomes of halodule uninervis contained approximately twice as much cell wall carbohydrate as any other. A similar pattern was also observed in the below ground plant parts. Zostera uninervis halodule uninervis is a species of seagrass native to the western pacific and indian oceans. A step towards species conservation by elrika dsouza and vardhan patankar nature conservation foundation, mysore 30765, iv cross, gokulam park, mysore 570 002, karnataka, india email. Leaves 730cm long compiled by the marine plant ecology group, northern fisheries centre cairns, australia june 2003 seagrass species codes syringodium isoetifolium hm cs cymodocea. Tropical seagrass as a bioindicator of metal accumulation. The final combined tree resolved three distinct clades of seagrasses.
Field guide to seagrasses of the red sea 3 warrant identification and protection in the red sea. Halodule uninervis 2010 least concern chelonia mydas, green turtle 2004 endangered falco concolor, sooty falcon 2014 near threatened vulnerable pelophylax ridibundus, eurasian marsh frog 2009 least concern mauremys caspica, caspian turtle not evaluated egretta gularis, western reef heron 2014 least concern. Jul 31, 2019 halodule uninervis forsskal ascherson palau islands, west pacific the type species holotype of the genus halodule is. Seagrass meadows are important for their ability to sequester and store carbon from the atmosphere. Colonisation and growth of the sea grasses, halodule. Epiphytic biofilm on halodule uninervis attouristic area in bali island ni luh watiniasih 1,3,4, i nyoman budiarsa 2,3, i nyomangde antara 2,3 1 study program of water resource management, faculty of marine and fisheries, udayana university, kampus bukit jimbaran, kuta, bali 80361 2. Commo garde of seagrasses halodule uninervis neliti.
Halodule pinifolia grows in sandy or muddy sand substrates from upper littoral to subtidal areas. Jun 12, 2019 it depends on the 2nd circuit you are supplying the voltage on collector of the optocoupler, optocoupler will never transfer the voltages of circuit1 to circuit2, it decreases resistance between your supplied datasheett at collector and emitter on the input of circuit2. Phd thesis, james cook university of north queensland. The highest average below ground biomass was 419 gm2, while the. In case of the halodule complex, complete similarity was only detected for h. Physical, chemical and biotic factors were investigated in three contrasting locations to determine how these affect the biomass, shoot density and length of this seagrass.
Zostera capricorni i0 12 14 16 18 24 26 28 30 32 34 36 38 40. Chemical composition was analyzed, which included ash, extractives, structural carbohydrates, acid insoluble residue and chnso content. Halodule uninervis seed bank a and germinated seed abundance b at coastal habitats in the wet tropics region seed bank is represented as the total number of seeds per m2 sediment surface. Smaller fish preferred to occupy dense seagrass of dominant pioneer smallsized species halodule uninervis and moved to the lesser dense bed of climax largesized seagrass thalassia hemprichii and enhalus acoroides with increasing their size. Estimation of leaves nutrient content in seagrass using. The former three species of seagrass produce long strap like leaves, whereas the latter has ovalshaped leaves. Halodule uninervis hu usually larger than halodule pinifolia. The board of trustees of the royal botanic gardens, kew. An halodule uninervis in uska species han liliopsida nga syahan ginhulagway ni peter forsskal, ngan ginhatag han pagkayana nga asya nga ngaran ni pierre edmond boissier. Seagrasses are a functional group, not a taxonomic group, of angiosperms flowering plants, i. Abstractseagrass halodule uninervis native to abu dhabi was sampled in various locations thorough february to june 20. It is widespread on tropical and semitropical ocean shores of all continents except europe and antarctica.
Halodule in kew science plants of the world online. Ecological studies on the dugong dugon of the andaman and. Oval shaped leaves in pairs 8 or more cross veins no hairs on leaf surface preferred dugong food common early colonising species found from intertidal to subtidal depths. Frontiers drivers of the low metabolic rates of seagrass.
Evaluation of composition and biogas production potential. An halodule uninervis in nahilalakip ha genus nga halodule, ngan familia nga cymodoceaceae. Halodule uninervis forsskal ascherson, halodule beaudettei aschers. Hydrocharitaceae, zosteraceae and cymodoceaceae figure 5. Ginklasipika han iucn an species komo diri gud kababarakan. Files are available under licenses specified on their description page. However statistical verification of such a relationship is possible only in areas with high species richness of seagrass and fish assemblages which is observed in tropical waters. The condition of the seagrass deteriorated near port vila, while the meadows away from the town appear to be healthier and more diverse, particularly in the north.
In queensland, zostera capricorni has been revised to zostera muelleri subsp. Seagrasses from the philippines smithsonian institution. Ecological studies on the dugong dugon of the andaman and nicobar islands. Pdf responses of the seagrass halodule uninervis forssk. Halodule is a genus of plants in the family cymodoceaceae described as a genus in 1841. The mean shoot densities of halodule pinifolia were varied and tend to decrease after the three. Halodule uninervis can have a narrow growth form but is not mapped in the central queensland area as available data did not distinguish between the wide and narrow growth form, with all h. Nov 07, 2019 final assignment aurora free download as word doc. Zostera capricorni photomicrographs of the leaf surface of seagrass species plate 3a. There continues some debate in the literature and between seagrass taxonomists on the details particularly below sub class on the correct classification. This confusion suggests the two are not actually separate species. Needle seagrass halodule sp on the shores of singapore.
Assessment of morphological variation of malaysian. In selecting seagrass species as a bioindicator, it should be taken into consideration that the highest accumulation of as is observed in halophila minor roots, the highest accumulation of cu is in halophila minor rhizomes and the highest accumulation of cd is in halophila ovalis leaves. Subtidal narrow strap seagrass department of environment and. Acanthaceae is a wellknown perennial, ayurvedic herb distributed in the tropical asia, africa and yemen. Halodule uninervis rhizomes maintain a narrow median soil temperature envelope. Christopher koy junot diazs stories as minor literature junot diazs aurora and aguantando as minor literature christopher e.
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