Diversity Of Crypthecodinium Spp. (Dinophyceae) From Okinawa Prefecture, Japan,
2013
Graduate School of Engineering and Science, Faculty of Science, University of the Ryukyus, Okinawa, Japan.
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 …
Effects Of Elevated Seawater Co2 On Feed Intake, Oxygen Consumption And Morphology Of Aristotle's Lantern In The Sea Urchin Anthocidaris Crassispina,
2013
Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, Shanghai, P.R.C. Institute for East China Sea Research, Nagasaki University, Nagasaki, Japan.
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 ± …
One New Record Genus And Three New Record Species Of Snake Eels (Ophichthidae:Anguilliformes) From Taiwan,
2013
Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan, R.O.C. Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, Taiwan, R.O.C.
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 …
Reproductive Biology Of Intertidal Frillfin Goby, Bathygoboius Fuscus In Keelung, Taiwan,
2013
Institute of Marine Biology, National Taiwan Ocean University, Keelung, Taiwan, R.O.C.
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 …
Alternative Assessment Methods Applied To The Hairtail (Trichiurus Lepturus) Stock In The Aru Sea As An Example,
2013
Department of Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung, Taiwan, R.O.C.
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 …
A New Parapercis Species From The Dongsha Island, South China Sea With Comments On A New Record From Taiwan,
2013
Institute of Marine Biology, National Taiwan Ocean University, Keelung, Taiwan, R.O.C.
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: …
Identification And Analysis Of White Spot Syndrome Virus (Wssv) Envelope Protein Vp41a,
2013
Institute of Marine Biology, National Taiwan Ocean University, Keelung, Taiwan, R.O.C.
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 …
How Important Is Viral Effect On The Measure Bacterial Growth In Western Subtropical Pacific Coastal Water?,
2013
Institute of Marine Environmental Chemistry and Ecology, National Taiwan Ocean University, Keelung, Taiwan, R.O.C.
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.
Predation By Apocyclops Royi (Cyclopoid: Copepod) On Ciliates And Rotifers,
2013
Institute of Marine Biology, National Taiwan Ocean University, Keelung, Taiwan, R.O.C.
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 …
Mosquitocidal Activity Of Hedychium Coronarium Rhizome Extract And Copepod Megacyclops Formosanus For The Control Of Dengue Vector,
2013
Institute of Marine Biology, National Taiwan Ocean University, Keelung, Taiwan, R.O.C. Division of Entomology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, India.
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 …
Diel Oscillations In Sailfish Vertical Movement Behavior In The East China Sea,
2013
Eastern Marine Biology Research Center, Fisheries Research Institute, Taitung, Taiwan, R.O.C.
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 …
Genetic Diversity Of Pyramimonas From Ryukyu Archipelago, Japan (Chlorophyceae, Pyramimonadales),
2013
Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, Nishihara, Okinawa, Japan.
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 …
Life History Of The Copepod Paramphiascella Sp. Affected By Hydrothermal Vent Effluents,
2013
Department of Life Science, College of Natural Science, Sangmyung University, Seoul, Korea.
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.
Gall Polymorphism Of Coral-Inhabiting Crabs (Decapoda, Cryptochiridae): A New Perspective,
2013
Institute of Fisheries Science, National Taiwan University, Taipei, Taiwan, R.O.C.
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 …
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),
2013
Institute of Marine Biology, National Taiwan Ocean University, Keelung, Taiwan, R.O.C. Division of Entomology, Department of Zoology, School of Life Sciences,
Bharathiar University, Coimbatore, Tamil Nadu, India.
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 …
The Checklist Of Inland-Water And Mangrove Fish Fauna Of Kinmen Island, Fujian Province, Taiwan With Comments On Ecological Conservation Of Native Fishes,
2013
Institute of Marine Biology, National Taiwan Ocean University, Keelung, Taiwan, R.O.C.
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 …
West Coast Rock Lobster Harvest Strategy And Control Rules 2015 - 2019: A Discussion Paper,
2013
Department of Primary Industries and Regional Development, Western Australia
West Coast Rock Lobster Harvest Strategy And Control Rules 2015 - 2019: A Discussion Paper, Western Australian Department Of Fisheries
Fisheries Management Papers
No abstract provided.
West Coast Rock Lobster Harvest Strategy And Control Rules : 2015 – 2019 : A Discussion Paper,
2013
Department of Primary Industries and Regional Development, Western Australia
West Coast Rock Lobster Harvest Strategy And Control Rules : 2015 – 2019 : A Discussion Paper, Department Of Fisheries
Fisheries Management Papers
No abstract provided.
A Population Model For Walleye In Nebraska Irrigation Reservoirs,
2013
University of Nebraska-Lincoln
A Population Model For Walleye In Nebraska Irrigation Reservoirs, Robert A. Kill
School of Natural Resources: Dissertations, Theses, and Student Research
Understanding how and why fish population size changes between years is a central theme in fisheries ecology. Fishery agencies have limited time and financial resources, thus there is a need for a quantitative way to direct the limited time and financial resources so agencies can manage fisheries more efficiently. I developed a tool for fishery managers that synthesizes common population indices and evaluated the relative importance of those indices given varying uncertainty in age-0 walleye Sander vitreus survival. Under most circumstances, I determined that resources are best utilized in reducing age-0 survival uncertainty when understanding walleye population growth. I applied …
Determining Scaphirhynchus Sturgeon Population Demographics And Dynamics: Implications For Range-Wide Management, Recovery, And Conservation,
2013
University of Nebraska-Lincoln
Determining Scaphirhynchus Sturgeon Population Demographics And Dynamics: Implications For Range-Wide Management, Recovery, And Conservation, Martin J. Hamel
School of Natural Resources: Dissertations, Theses, and Student Research
Sturgeons (Acipenseridae) have experienced world-wide declines as a result of anthropogenic effects such as over-harvest, habitat degradation, altered flow regimes, and pollution. Nearly all European and Asian sturgeon species have experienced population declines and have subsequently been classified as either threatened or endangered. North American sturgeons have experienced a similar plight in that all eight native sturgeon species are listed as endangered, threatened, or of special concern. Direct linkages between North American sturgeon declines and anthropogenic effects are difficult to assess due to scale considerations, fluctuating environmental conditions, difficulty in capture, and the interaction of all these effects. To recover, …
