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Articles 12091 - 12120 of 21441

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Application Of Lc-Ms/Ms In Identification Of Toxin In The Causative Gastropod And Victim Samples, Chun-Lan Lin, Cheng-Hong Hsieh, You-Liang Hsieh, Yi-Cheng Tai, Deng-Fwu Hwang Dec 2013

Application Of Lc-Ms/Ms In Identification Of Toxin In The Causative Gastropod And Victim Samples, Chun-Lan Lin, Cheng-Hong Hsieh, You-Liang Hsieh, Yi-Cheng Tai, Deng-Fwu Hwang

Journal of Marine Science and Technology–Taiwan

Food paralytic poisoning incident was detected in the gastropod Nassariidae Niotha clathrata and Zeuxis scalaris occurred in December 2012 in Kaohsiung, Taiwan. The toxin was purified from each remain of cooked gastropod and victim tissues by ultrafiltration using a YM-3 membrane, followed by C18 cartridge column purification. Based on analyses by LC-MS/MS, the causative agent of gastropod food poisoning was identified as tetrodotoxin. The toxicity of remain of cooked sample was 245 MU/g (1MU = 0.178 µg TTX) for N. clathrata and 203 MU/g for Z. scalaris. The blood and excrements of victim was shown to contain TTX of 0.13 …

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A Comparative Study Between Ranavirus And Megalocytivirus Infections In Orange-Spotted Grouper (Epienphelus Coioides), Jiann-Horng Leu, Ming-Hung Wu, Hsin-Yiu Chou Dec 2013

A Comparative Study Between Ranavirus And Megalocytivirus Infections In Orange-Spotted Grouper (Epienphelus Coioides), Jiann-Horng Leu, Ming-Hung Wu, Hsin-Yiu Chou

Journal of Marine Science and Technology–Taiwan

Piscine iridoviruses infect a wide variety of fish and are classified into three genera: Lymphocystivirus, Ranavirus and Megalocytivirus. Lymphocystiviruses cause non-fatal, dermal infections, while ranaviruses and megalocytiviruses produce devastating, systemic infections with mortality reaching up to 100%. Although both ranaviruses and megalocytiviruses cause fatal systemic infections, they induce different pathology. In Taiwan, both ranaviruses and megalocytiviruses have caused serious epidemics in several mariculture fish species, including groupers. In this study, we infected the orange-spotted grouper (Epinephelus coioides) with either a megalocytivirus (TGIV, grouper iridovirus of Taiwan) or a ranavirus (GIV, grouper iridovirus), and then the two iridoviruses were investigated and …

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Ichthyoplankton Community Associated With Oceanic Fronts In Early Winter On The Continental Shelf Of The Southern East China Sea, Yi-Chen Wang, Wen-Yu Chen, Yi Chang, Ming-An Lee Dec 2013

Ichthyoplankton Community Associated With Oceanic Fronts In Early Winter On The Continental Shelf Of The Southern East China Sea, Yi-Chen Wang, Wen-Yu Chen, Yi Chang, Ming-An Lee

Journal of Marine Science and Technology–Taiwan

The study of ichthyoplankton community associated with oceanic features on the continental shelf of southern East China Sea (ECS) was conducted in early winter from 2006 to 2009. The species composition of the ichthyoplankton and its spatial distribution was classified and compared with oceanic front. A total number of 1,809 fish larvae individuals were sampled from 5 field surveys, and represented 76 families and 137 species. Using the Bray-Curtis dissimilarity, the abundance of species found to exceed 0.5% of the total sample from 36 stations were classified into four groups: China Coastal Group, Mixed Shelf Group, Taiwan Strait Group, and …

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Comparative Morphological Study Of Otoliths In Taiwanese Anguilliformes Fishes, Abbie K. Chulin, Hong-Ming Chen Dec 2013

Comparative Morphological Study Of Otoliths In Taiwanese Anguilliformes Fishes, Abbie K. Chulin, Hong-Ming Chen

Journal of Marine Science and Technology–Taiwan

Otoliths are calcareous structures found in the labyrinth membrane in the otic capsules of teleost fishes and are constituted of three pairs: the sagittae, lapilli and asterisci. They have long been recognized as being species specific. A comparative morphology of the sagittae, asterisci and lapilli among six eel species of Anguilliformes belonging to the Family Congridae, Muraenesocidae and Muraenidae was studied. A total of 64 specimens belonging to Bathyconger wallacei (n = 23), Conger japonicus (n = 9), Muraenesox cinereus (n = 10), Echidna polyzona (n = 4), Gymnothorax eurostus (n = 4) and Gymnothorax reticularis (n = 14) were …

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The Molecular Phylogeny Of Genus Hemigobius (Teleostei: Gobiidae), With The Comfirmation Of Validity Of Hemigobius Crassa (Herre, 1945), Shih-Pin Huang, I-Shiung Chen, Kwang-Tsao Shao Dec 2013

The Molecular Phylogeny Of Genus Hemigobius (Teleostei: Gobiidae), With The Comfirmation Of Validity Of Hemigobius Crassa (Herre, 1945), Shih-Pin Huang, I-Shiung Chen, Kwang-Tsao Shao

Journal of Marine Science and Technology–Taiwan

The genus Hemigobius Bleeker, 1874 is has been regarded as only two valid species in previous study including H. hoevenii (Bleeker, 1851) and H. mingi (Herre, 1936). Traditionally, the both Vaimosa crassa Herre, 1945 and Mugilogobius obliquifasciatus Wu and Ni, 1985 found from Chinese and Taiwanese waters had ever been regarded as the junior synonyms of H. hoevenii. However, our present study have been confirm that H. crassa collected from Hong Kong and Taiwan is a valid species. The H. crassa can be well distinguished from H. hoevenii based on several morphological features. The molecular phylogenetic analysis firstly based on …

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Redescription Of Gobius Gastrospilos Bleeker, 1853 With Comments On Four Newly Recorded Species Of Brackish Gobies From Taiwan, Shih-Pin Huang, Martien J. P. Van Oijen, Kuang-Ying Huang, Chin-Chu Tsai, I-Shiung Chen Dec 2013

Redescription Of Gobius Gastrospilos Bleeker, 1853 With Comments On Four Newly Recorded Species Of Brackish Gobies From Taiwan, Shih-Pin Huang, Martien J. P. Van Oijen, Kuang-Ying Huang, Chin-Chu Tsai, I-Shiung Chen

Journal of Marine Science and Technology–Taiwan

A re-examination of the holotype of Gobius gastrospilos Bleeker, 1853 confirmed thatthis species belongs to the genus Pseudogobius Popta, 1922. The detailed redescription of Pseudogobius gastrospilos (Bleeker, 1853) would be provided in this paper. Furthermore, a series of field surveys of the gobioid fauna in brackish habitats of Taiwan revealed and summarized the following four newly recorded gobiid species: Pseudogobius gastrospilos (Bleeker, 1853), Mugilogobius chulae (Smith, 1932), Mugilogobius mertoni (Weber, 1911) and Mugilogobius myxodermus (Herre, 1935). The diagnosis of these newly recorded species of Taiwan would be also provided herein.

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An Annotated Checklist Of Gobioid Fishes From The Mangrove Estuary Of Matang, Malay Peninsula, With Comments On A New Pseudogobius (Teleostei: Gobiidae) Species, Shih-Pin Huang, Kwang-Tsao Shao, Hao-Ming Huang, Ving-Ching Chong, I-Shiung Chen Dec 2013

An Annotated Checklist Of Gobioid Fishes From The Mangrove Estuary Of Matang, Malay Peninsula, With Comments On A New Pseudogobius (Teleostei: Gobiidae) Species, Shih-Pin Huang, Kwang-Tsao Shao, Hao-Ming Huang, Ving-Ching Chong, I-Shiung Chen

Journal of Marine Science and Technology–Taiwan

A series of field collections of fishes were made in the Matang mangrove, Malay Peninsula in April 2011. At least 23 genera and 27 species of gobioid fishes including a new Pseudogobius species were collected and recorded in this region during the expedition. The checklist of gobioid fauna and available materials are provided herein, and the formal description of a new goby species, Pseudogobius fulvicaudus Huang, Shao & Chen, new species will be provided and discussed in this paper.

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A New Freshwater Goby Of Rhinogobius (Teleostei: Gobiidae) From Hainan Island, Southern China, I-Shiung Chen, Peter J. Miller Dec 2013

A New Freshwater Goby Of Rhinogobius (Teleostei: Gobiidae) From Hainan Island, Southern China, I-Shiung Chen, Peter J. Miller

Journal of Marine Science and Technology–Taiwan

A new freshwater goby of Rhinogobius Gill (1859) was collected from the Wangchuang River basin, Hainan Island, southern China. The new species, Rhinogobius sangenloensis, can be well distinguished from other congeners by a combination of the following features: second dorsal-fin rays modally I/8; anal-fin rays I/7-8; pectoral-fin rays modally 17; longitudinal scales 25-27; predorsal scales 9-11; vertebrae 26; body with 3-4 longitudinal, discontinuous orange to brown or brownish black bars and stripes; cheek with 2 grayish black spots in male; pectoral-fin base in male with 2 oblong black bars; caudal fin with an orange mark on lower 1/3 region in …

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A New Species Of Genus Pseudogobius Popta (Teleostei: Gobiidae) From Brackish Water Of Taiwan And Southern China, I-Shiung Chen, Shih-Pin Huang, Kuang-Ying Huang Dec 2013

A New Species Of Genus Pseudogobius Popta (Teleostei: Gobiidae) From Brackish Water Of Taiwan And Southern China, I-Shiung Chen, Shih-Pin Huang, Kuang-Ying Huang

Journal of Marine Science and Technology–Taiwan

A new species of fat-nose goby genus Pseudogobius taijiangensis n. sp. is firstly described herein and was collected from brackish waters of Taiwan and southern China. P. taijiangensis n. sp. can be well distinguished from other congeners by the unique combinations of the following features: (1) fin rays: 2nd dorsal fin rays modally 7, anal fin rays modally 7, pectoral fin rays modally 17 and first dorsal fin rounded and lacking filaments; (2) squamation: lateral body with large ctenoid scales, longitudinal scale rows 26-28, predorsal scales modally 8; and (3) specific coloration: body with some black thin longitudinal lines; rear …

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A New Species Of Cyprinid Fish Of Genus Opsariichthys From Ky Cung-Bang Giang River Basin, Northern Vietnam With Notes On The Taxonomic Status Of The Genus From Northern Vietnam And Southern China, Thien Quang Huynh, I-Shiung Chen Dec 2013

A New Species Of Cyprinid Fish Of Genus Opsariichthys From Ky Cung-Bang Giang River Basin, Northern Vietnam With Notes On The Taxonomic Status Of The Genus From Northern Vietnam And Southern China, Thien Quang Huynh, I-Shiung Chen

Journal of Marine Science and Technology–Taiwan

Opsariichthys duchuunguyeni, a new species of cyprinid fish from Ky Cung – Bang Giang river basin, northern Vietnam, is described. It is characterized by the following unique combination of features: short maxillary extending; 12-15 rounded tubercles on lower jaw; 11-12 crossbars on body; pectoral fin reaching the pelvic fin origin in adult male; lateral-line scales comprising 41; scales above lateral-line 8; scales below lateral-line 3. Moreover, the genetic differentiation and a diagnostic key of the new species and other congeners are given in this paper for discussion about taxonomic status of the genus Opsariichthys from Vietnam and nearby geographical regions, …

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Seasonal Abundance Of Epiphytic Dinoflagellates Around Coastal Waters Of Jeju Island, Korea, Md. Mahfuzur Rahman Shah, So-Jeong An, Joon-Baek Lee Dec 2013

Seasonal Abundance Of Epiphytic Dinoflagellates Around Coastal Waters Of Jeju Island, Korea, Md. Mahfuzur Rahman Shah, So-Jeong An, Joon-Baek Lee

Journal of Marine Science and Technology–Taiwan

The seasonal abundance of epiphytic dinoflagellates in the intertidal zone of Jeju Island, Korea was quantitatively estimated by monthly collection of macroalgal samples (Rhodophyta, Phaeophyta, and Chlorophyta) from six sampling locations from July 2012 to June 2013. Ten epiphytic dinoflagellate taxa, including eight potentially toxic species Amphidinium carterae, A. operculatum, Gambierdiscus sp., Ostreopsis ovata, Prorocentrum concavum, P. emarginatum, P. lima, and P. rhathymum, were identified. Two Amphidinium and three Prorocentrum species are newly recorded in Korean coastal waters. A significant change in seasonal abundance was recorded with maximum (751.82 ± 223.12 cells g-1 wet weight of algae; cells g-1 hereafter) …

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Taxonomic Study Of Pike Congers (Anguilliformes: Muraenesocidae) With Identification Of Muraenesocid Collections In Taiwan, James Lin, Kwang-Tsao Shao, Hong-Ming Chen Dec 2013

Taxonomic Study Of Pike Congers (Anguilliformes: Muraenesocidae) With Identification Of Muraenesocid Collections In Taiwan, James Lin, Kwang-Tsao Shao, Hong-Ming Chen

Journal of Marine Science and Technology–Taiwan

During the past years, we collected and studied on the Anguilliformes fishes, and described some new genera and new species of eels. We noticed that there are some misidentified species or invalid junior synonym in Muraenesocidae specimens. Considering how limited this family is known in Taiwan, we would like to revise the species of pike congers here. We collected muraenesocid specimens around Taiwan from fish markets, fishery harbors, fishermen, and also examined the specimens from other Taiwanese museum collections. Comparing to the past literature of Muraenesocidae, we found that the species Congresox talabon was misreported previously, and there is not …

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Genetic Diversity Of Filamentous Cyanobacteria From Shore Regions Of Okinawa, Shoichiro Suda, Rui Moriya, Shinpei Sumimoto, Osamu Ohno, Kiyotake Suenaga Dec 2013

Genetic Diversity Of Filamentous Cyanobacteria From Shore Regions Of Okinawa, Shoichiro Suda, Rui Moriya, Shinpei Sumimoto, Osamu Ohno, Kiyotake Suenaga

Journal of Marine Science and Technology–Taiwan

Benthic marine cyanobacteria are ubiquitous oxygenic photosynthetic bacteria and they form major components of various communities, including epiphytic, epilithic and microbial mats, in coral reef environments. Filamentous groups may form almost monospecific macroscopic colonies, and sometimes make potentially harmful algal blooms (HABs). HABs bring serious problems for marine tourism but marine filamentous cyanobacteria are good resource for drug discovery. However, cultivation and identification of such filamentous cyanobacteria are difficult and there are taxonomic confusions. In this study, we investigate 17 samples from coral reef area of 10 localities in Okinawa. Macroscopic mats or cushions of filamentous cyanobacteria were collected. The …

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Diversity Of Crypthecodinium Spp. (Dinophyceae) From Okinawa Prefecture, Japan, Danang Ambar Prabowo, Ooshi Hiraishi, Shoichiro Suda Dec 2013

Diversity Of Crypthecodinium Spp. (Dinophyceae) From Okinawa Prefecture, Japan, Danang Ambar Prabowo, Ooshi Hiraishi, Shoichiro Suda

Journal of Marine Science and Technology–Taiwan

The genus Crypthecodinium (Dinophyceae) currently consists of only one species: C. cohnii, a heterotrophic marine dinoflagellate widely known able to produce prolific amount of DHA. However, previous studies revealed that there are morphological and genetic differences among Crypthedodinium cohnii-like strains, indicating the potential of undiscovered diversity of this dinoflagellate. Attempts of isolating heterotrophic marine dinoflagellate strains were made from submerged mangrove leaves and seaweed. A total of nine strains were established, cultured and maintained using seawater-based GTY medium for taxonomic identification and phylogenetic analyses based on SSU, ITS1, 5.8S, ITS2 and LSU rDNA. Morphological observation revealed all strains shared similar …

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Effects Of Elevated Seawater Co2 On Feed Intake, Oxygen Consumption And Morphology Of Aristotle's Lantern In The Sea Urchin Anthocidaris Crassispina, Guining Wang, Mitsuharu Yagi, Rui Yin, Weiqun Lu, Atsushi Ishimatsu Dec 2013

Effects Of Elevated Seawater Co2 On Feed Intake, Oxygen Consumption And Morphology Of Aristotle's Lantern In The Sea Urchin Anthocidaris Crassispina, Guining Wang, Mitsuharu Yagi, Rui Yin, Weiqun Lu, Atsushi Ishimatsu

Journal of Marine Science and Technology–Taiwan

Adult sea urchins, Anthocidaris crassispina, were reared individually in running seawater equilibrated with gas mixtures containing 380 ppm (control), 1,000 ppm or 3,000 ppm CO2, at ambient natural temperature for 140 days to study effects of elevated CO2 on feed intake, fecal production, oxygen consumption, and the morphology of Aristotle’s lantern. Feed intake became significantly lower in the two high CO2 groups than in the control after 90 (1,000 ppm) or 110 (3,000 ppm) days and remained suppressed until the end of the experiment (control, 0.16 ± 0.01 (mean ± SE) g dry wt ind-1 day-1; 1,000 ppm, 0.10 ± …

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One New Record Genus And Three New Record Species Of Snake Eels (Ophichthidae:Anguilliformes) From Taiwan, Yung-Chieh Chiu, James Lin, Hong-Ming Chen Dec 2013

One New Record Genus And Three New Record Species Of Snake Eels (Ophichthidae:Anguilliformes) From Taiwan, Yung-Chieh Chiu, James Lin, Hong-Ming Chen

Journal of Marine Science and Technology–Taiwan

The tropical and subtropical eel family Ophichthidae are the most diverse Anguilliformes fishes which occupy a variety of marine habitats such as reefs, sand and mud substrates. In Taiwan, we can often collect them from the capture of bottom-trawl fishery. In this study, we added two new recorded species Ophichthus machidai and O. obtusus of ophichthid eels collected from Da-xi fish market by comparing their morphological measurements, vertebral counts and head pores with the other six species of the genus Ophichthus: O. apicalis, O. aphotistos, O. asakusae, O. erabo, O. tsuchidae, O. urolophus. We also obtained a unique specimen from …

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Reproductive Biology Of Intertidal Frillfin Goby, Bathygoboius Fuscus In Keelung, Taiwan, Yu-Hai Kong, I-Shiung Chen Dec 2013

Reproductive Biology Of Intertidal Frillfin Goby, Bathygoboius Fuscus In Keelung, Taiwan, Yu-Hai Kong, I-Shiung Chen

Journal of Marine Science and Technology–Taiwan

The reproductive biology of intertidal, black brown frillfin goby, Bathygobius fuscus (Rüppell) have been surveyed from the coastal region of Keelung, Taiwan. The species always belongs to the dominant species found in the fish community of the tidal pools for different seasons. The overall fecundity of adult female is from 2335 to 13332 eggs with the average of 5605 eggs with average eggs-size is 0.34 ± 0.06 mm. The female minimum measure body-size would be 40.4 mm SL. The higher reproductive season can be well observed from female GSI (Gonadosomatic Index) during May to September. During that time, there may …

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Alternative Assessment Methods Applied To The Hairtail (Trichiurus Lepturus) Stock In The Aru Sea As An Example, Chao-Hsiung Cheng, Tsuyoshi Kawasaki, Kuo-Ping Chiang, Chuan-Hung Ho Dec 2013

Alternative Assessment Methods Applied To The Hairtail (Trichiurus Lepturus) Stock In The Aru Sea As An Example, Chao-Hsiung Cheng, Tsuyoshi Kawasaki, Kuo-Ping Chiang, Chuan-Hung Ho

Journal of Marine Science and Technology–Taiwan

The Aru Sea off Indonesia is a major fishing ground for Taiwanese distant-water otter trawlers. The hairtail, an economically important demersal fish, is abundant in that area. The assessment methodology in this paper extends previous studies on hairtail fisheries by considering migration within the fishing grounds. This model is based on conventional Leslie-Delury method but makes different assumptions on stock movement and the relationship between stock abundance and catch per unit effort. It was applied to retrospective data from the hairtail fisheries in the Aru Sea. In addition, the depletion method was used to estimate the abundance of hairtail and …

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A New Parapercis Species From The Dongsha Island, South China Sea With Comments On A New Record From Taiwan, I-Shiung Chen, Tsung-Hsien Tsai, Shao-Liang Hsu Dec 2013

A New Parapercis Species From The Dongsha Island, South China Sea With Comments On A New Record From Taiwan, I-Shiung Chen, Tsung-Hsien Tsai, Shao-Liang Hsu

Journal of Marine Science and Technology–Taiwan

The sandperch genus, Parapercis Bleeker, 1863 is the most diverse group of Family Pinguipedidae in the perciforms. One unusual specimen of sandperches recently collected from the Dongsha Island (Pratas Island), South China Sea from 2011 expedition belonging to Taiwan, the Republic of China is turned to a new species as Parapercis dongshaensis n. sp. closely related to the newly recorded species, Parapercis okamurai Kamohara, 1960 which also firstly collected from Taiwanese waters would been also documented herein. The new species, Parapercis dongshaensis n. sp., can be well distinguished from other congeners by the following unique combination of features: (1) fins: …

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Identification And Analysis Of White Spot Syndrome Virus (Wssv) Envelope Protein Vp41a, Po-Yu Huang, Pei-Jung Chen, Huai-Ting Huang, Li-Li Chen Dec 2013

Identification And Analysis Of White Spot Syndrome Virus (Wssv) Envelope Protein Vp41a, Po-Yu Huang, Pei-Jung Chen, Huai-Ting Huang, Li-Li Chen

Journal of Marine Science and Technology–Taiwan

White spot syndrome virus (WSSV) is the causative agent of a disease that has led to severe mortalities of cultured shrimp in Taiwan and many other countries. WSSV, a kind of large enveloped DNA virus, has a wide host range among crustaceans. During the first stage to infect a target cell, the enveloped virus must combine itself with the receptor on the host cell membrane via an envelope protein. In WSSV, binding of envelope protein with the receptor of the host cell membrane was revealed in a number of previous studies. WSSV envelope proteins were also considered to form a …

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How Important Is Viral Effect On The Measure Bacterial Growth In Western Subtropical Pacific Coastal Water?, An-Yi Tsai, Gwo-Ching Gong, Kuo-Ping Chiang, Jie Hung Dec 2013

How Important Is Viral Effect On The Measure Bacterial Growth In Western Subtropical Pacific Coastal Water?, An-Yi Tsai, Gwo-Ching Gong, Kuo-Ping Chiang, Jie Hung

Journal of Marine Science and Technology–Taiwan

Bacterial growth rates were determined in natural seawater samples using two different methodological approaches: incubation in dialysis bags, and a modification of the dilution approach. Bacterial growth rates estimated for the dialysis bag varied from 0.026 h-1 (April) to 0.208 h-1 (August). Bacterial growth rates in 0.2 µm and 30 kDa size-fractionated series ranged from 0.038 to 0.094 h-1 and 0.078 to 0.42 h-1, respectively. Furthermore, in all of our samples, growth rates in the 30 kDa fractionated series (grazer and virus-free diluent) were higher than in the 0.2 µm series (grazer-free diluent) or in the dialysis bag incubations.

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Predation By Apocyclops Royi (Cyclopoid: Copepod) On Ciliates And Rotifers, Raunak Dhanker, Jiang-Shiou Hwang Dec 2013

Predation By Apocyclops Royi (Cyclopoid: Copepod) On Ciliates And Rotifers, Raunak Dhanker, Jiang-Shiou Hwang

Journal of Marine Science and Technology–Taiwan

We studied the prey consumption rates in Apocyclops royi on neonate and adult rotifers, Brachionus rotundiformis and ciliate, Euplotes sp. in the presence and absence of algae, the smaller Isochrysis galbana and the larger Tetraselmis chui. Both males and females of A. royi were able to successfully ingest neonate and adult rotifers and ciliate. The prey consumption rates were significantly lower in males than in females of A. royi. Regardless of sex and reproductive state of the copepod, prey consumption rates were higher on neonates rotifer than on adults. However, the prey consumption rates were significantly lower on ciliate than …

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Mosquitocidal Activity Of Hedychium Coronarium Rhizome Extract And Copepod Megacyclops Formosanus For The Control Of Dengue Vector, Kandasamy Kalimuthu, Kadarkarai Murugan, Li-Chun Tseng, Jiang-Shiou Hwang Dec 2013

Mosquitocidal Activity Of Hedychium Coronarium Rhizome Extract And Copepod Megacyclops Formosanus For The Control Of Dengue Vector, Kandasamy Kalimuthu, Kadarkarai Murugan, Li-Chun Tseng, Jiang-Shiou Hwang

Journal of Marine Science and Technology–Taiwan

The bio-efficacy of Hedychium coronarium Rhizome extract and copepods Megacyclops formosanus, were tested against first to fourth-instar larvae and pupae of dengue Vector Aedes aegypti under laboratory conditions. Different solvent extracts of H. coronarium, combined with copepod M. formosanus showed considerable mortality against A. aegypti. The median lethal concentration value (LC50) observed for the larvicidal and pupicidal activities against mosquito vector species A. aegypti value were 38.59, ppm; no mortality was observed in the control group. This study was also initiated to test the predatory efficiency of copepod against different larval instars and predatory efficiency was noticed at the laboratory …

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Diel Oscillations In Sailfish Vertical Movement Behavior In The East China Sea, Wei-Chuan Chiang, Ryo Kawabe, Michael K. Musyl, Chi-Lu Sun, Hsiao-Min Hung, Hsien-Chung Lin, Shun Watanabe, Seishiro Furukawa, Wen-Yie Chen, Yu-Kai Chen, Don-Chung Liu Dec 2013

Diel Oscillations In Sailfish Vertical Movement Behavior In The East China Sea, Wei-Chuan Chiang, Ryo Kawabe, Michael K. Musyl, Chi-Lu Sun, Hsiao-Min Hung, Hsien-Chung Lin, Shun Watanabe, Seishiro Furukawa, Wen-Yie Chen, Yu-Kai Chen, Don-Chung Liu

Journal of Marine Science and Technology–Taiwan

A sailfish (Istiophorus platypterus) was tagged with a pop-up satellite archival tag off the eastern coast of Taiwan and moved in a northerly direction to the East China Sea, where the tag popped-up after 160 days. The total linear displacement was 550 km from deployment to pop-up location and all movements were confined to the East China Sea. After the primarily southward movement during first two months at-liberty, the sailfish changed course after September and began to swim in a northerly direction paralleling the Kuroshio Current. During these horizontal movements, the tagged animal exhibited diel oscillations in its vertical diving …

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Genetic Diversity Of Pyramimonas From Ryukyu Archipelago, Japan (Chlorophyceae, Pyramimonadales), Shoichiro Suda, Mohammad Azmal Hossain Bhuiyan, Daphne Georgina Faria Dec 2013

Genetic Diversity Of Pyramimonas From Ryukyu Archipelago, Japan (Chlorophyceae, Pyramimonadales), Shoichiro Suda, Mohammad Azmal Hossain Bhuiyan, Daphne Georgina Faria

Journal of Marine Science and Technology–Taiwan

The genus Pyramimonas Schmarda was traditionally described on observations of its periplast and internal structure of different flagellar apparatus or eyespot orientations and currently comprises of ca. 60 species that are divided into six subgenera: Pyramimonas, Vestigifera, Trichocystis, Punctatae, Hexactis, and Macrura. In order to understand the genetic diversity and phylogenetic relationships of genus Pyramimonas members, we analyzed nuclear SSU rDNA molecular data from 41 strains isolated from different locations of the Ryukyu Archipelago. Phylogenetic analyses revealed that strains could be segregated into six clades, four of which represented existing subgenera: Pyramimonas, Vestigifera McFadden, Trichocystis McFadden, and Punctatae McFadden, and …

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Life History Of The Copepod Paramphiascella Sp. Affected By Hydrothermal Vent Effluents, Hans-Uwe Dahms, Li-Chun Tseng, Jiang-Shiou Hwang Dec 2013

Life History Of The Copepod Paramphiascella Sp. Affected By Hydrothermal Vent Effluents, Hans-Uwe Dahms, Li-Chun Tseng, Jiang-Shiou Hwang

Journal of Marine Science and Technology–Taiwan

Toxicity of Hydrothermal vent (HV) effluents was tested by investigating the effect on growth and reproduction of the copepod Paramphiascella sp. which was collected and subsequently cultured from localities nearby a shallow marine HV at Kueishan Tao Island, Taiwan. Ontogenetic stages (nauplii, copepodids, and adults) were exposed to a range of concentrations of HV effluents in a static renewal culture system. In a first of two experiments we tested the survivorship of these in HV effluent dilutions from 1 to 50%. HV effluents significantly reduced the survivorship of the naupliar stages at concentrations >5% for Paramphiascella sp. (p < 0.01) and all nauplii died at concentrations of 25% and 50%. Copepodids were significantly letally affected at concentrations >5% (p < 0.01) and all died at 50% (p < 0.01). Developmental duration in Paramphiascella was showing a trend of developmental delay in both phases, in the naupliar and in the copepodid phase. Mortality showed a greater sensitivity to chemical exposure than development time. Among both traits were early developmental stages of Paramphiascella sp. more sensitive to HV effluents than advanced stages. We showed that Paramphiascella sp. was a useful test organism in the monitoring of life cycle as well as acute effects of HV effluents being present for millions of years and providing unique ecosystems. Mortality was a useful toxicological endpoint whereas developmental duration was not.

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Gall Polymorphism Of Coral-Inhabiting Crabs (Decapoda, Cryptochiridae): A New Perspective, Tsui-Ping Wei, Hon-Cheng Chen, Ying-Chou Lee, Min-Li Tsai, Jiang-Shiou Hwang, Shao-Hung Peng, Yuh-Wen Chiu Dec 2013

Gall Polymorphism Of Coral-Inhabiting Crabs (Decapoda, Cryptochiridae): A New Perspective, Tsui-Ping Wei, Hon-Cheng Chen, Ying-Chou Lee, Min-Li Tsai, Jiang-Shiou Hwang, Shao-Hung Peng, Yuh-Wen Chiu

Journal of Marine Science and Technology–Taiwan

Coral-inhabiting gall crabs are either obligate symbionts or parasitic associates with their host corals. They form a variety of galls/pits inside the skeleton of living corals. Nine genera of gall crabs on several scleractinian corals were used to test the hypothesis that galls vary among cryptochirid genera. Phylogenetic and morphometric observations were combined to analyze the possible evolutionary significance of gall construction. A high degree of conservation of gall shapes was observed in relation to the gall crabs’ phylogeny. Gall/pit morphology and fidelity was studied in each of the different species of gall crabs. In addition, the correlation analysis results …

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Mosquito Larvicidal Activity Of Broussonetia Papyrifera Compound Marmesin By Blocking Protein Aescp-2, Docking Strategies, And Combined Effect Of Copepod Megacyclops Formosanus Against Dengue Vector Aedes Aegypti (Diptera: Culicidae), Kandasamy Kalimuthu, Chia-Hsiang Wang, Shiu-Mei Liu, Li-Chun Tseng, Kadarkarai Murugan, Jiang-Shiou Hwang Dec 2013

Mosquito Larvicidal Activity Of Broussonetia Papyrifera Compound Marmesin By Blocking Protein Aescp-2, Docking Strategies, And Combined Effect Of Copepod Megacyclops Formosanus Against Dengue Vector Aedes Aegypti (Diptera: Culicidae), Kandasamy Kalimuthu, Chia-Hsiang Wang, Shiu-Mei Liu, Li-Chun Tseng, Kadarkarai Murugan, Jiang-Shiou Hwang

Journal of Marine Science and Technology–Taiwan

Mosquito-borne diseases that have an economic impact create losses in commercial and labor outputs, particularly in countries with tropical and subtropical climates. The emergence of resistance to synthetic insecticides is a challenge to mosquito control. Cyclopoid copepods are important predators in many aquatic ecosystems and have been successfully used as biological agents to control mosquito larvae. For this study, we examined the larvicidal activity of the copepod Megacyclops formosanus in combination with the compound marmesin (which was purified from the methanol crude extract of the plant stem bark of Broussonetia papyrifera) against Aedes aegypti larvae. Their larvicidal activity and in …

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The Checklist Of Inland-Water And Mangrove Fish Fauna Of Kinmen Island, Fujian Province, Taiwan With Comments On Ecological Conservation Of Native Fishes, I-Shiung Chen, Chia-Jun Weng, Yi-Ru Chen, Shih-Pin Huang, Zong-Han Wen, Nian-Hong Jang-Liaw, Tsung-Hsien Tsai Dec 2013

The Checklist Of Inland-Water And Mangrove Fish Fauna Of Kinmen Island, Fujian Province, Taiwan With Comments On Ecological Conservation Of Native Fishes, I-Shiung Chen, Chia-Jun Weng, Yi-Ru Chen, Shih-Pin Huang, Zong-Han Wen, Nian-Hong Jang-Liaw, Tsung-Hsien Tsai

Journal of Marine Science and Technology–Taiwan

The ecological status of the lowland freshwater and brackish fish fauna traditionally got better protected since long time for military protect region without great human and agriculture impact in last few decades. However, many human reconstruction of river habitats, pollution and overuse of irrigation from river water have become great impact for fish survival in Kinmen. So far, there are totally 27 families, 57 genera and 68 species have been collected and recorded by our intensive survey for those freshwater habitats in inlandwater of Kinmen island, Fujian Province, Taiwan in our recent field survey during 2011-2012. Totally 17 newly recorded …

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Certain Agave Species Exhibit The Capability To Be Moderately Productive Under Conditions Of High Salt And Drought Stress, Steven J. Bergsten Dec 2013

Certain Agave Species Exhibit The Capability To Be Moderately Productive Under Conditions Of High Salt And Drought Stress, Steven J. Bergsten

Theses and Dissertations

Water availability and arable lands are increasingly limiting resources in many parts of the U.S., particularly in semi-arid and arid regions. As a means of addressing food and fuel demands associated with burgeoning population growth, highly productive and water-use efficient crops need to be identified. One potential crop, Agave, merits consideration and evaluation due to its putative capability to provide sustenance and energy despite growing in water-limited regions and on marginal soils. However, little is known regarding the productivity these succulent plants will have under growing conditions of the Southwest, where high concentrated saline soils are abundant, and water is …

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