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Articles 12061 - 12090 of 21441
Full-Text Articles in Entire DC Network
Integrating Societal Perspectives And Values For Improved Stewardship Of A Coastal Ecosystem Engineer, Steven B. Scyphers, J. Steven Picou, Robert D. Brumbaugh, Sean P. Powers
Integrating Societal Perspectives And Values For Improved Stewardship Of A Coastal Ecosystem Engineer, Steven B. Scyphers, J. Steven Picou, Robert D. Brumbaugh, Sean P. Powers
University Faculty and Staff Publications
Oyster reefs provide coastal societies with a vast array of ecosystem services, but are also destructively harvested as an economically and culturally important fishery resource, exemplifying a complex social-ecological system (SES). Historically, societal demand for oysters has led to destructive and unsustainable levels of harvest, which coupled with multiple other stressors has placed oyster reefs among the most globally imperiled coastal habitats. However, more recent studies have demonstrated that large-scale restoration is possible and that healthy oyster populations can be sustained with effective governance and stewardship. However, both of these require significant societal support or financial investment. In our study, …
The Role Of Histone Methyltransferases In Determining Developmental Potential Of Bovine Oocytes, Jairo Alberto Sarmiento
The Role Of Histone Methyltransferases In Determining Developmental Potential Of Bovine Oocytes, Jairo Alberto Sarmiento
LSU Doctoral Dissertations
Histone proteins are proteins found in eukaryotic cells that associate with DNA to form the most basic structural unit of chromatin, called nucleosomes. The post-translational modifications of histones regulate developmental competence in bovine oocytes and early embryos. The difference in developmental competence between in vitro matured oocytes and in vivo matured oocytes was used to investigate the accumulation of transcripts for histone methyltransferases (HMTs) during oocyte maturation. Methyltransferases ASH1L, EHMT2, SUV39H1 and KDM6B were selected as genes of interest. Transvaginal ultrasound-guided aspiration (TUGA) was used to collect immature and in vivo matured bovine cumulus-oocyte complexes (COCs). Immature COCs collected via …
Relatedness Of Male Hoary Bats At A Migratory Stopover Site In Northwestern California, April K. Kaneshiro
Relatedness Of Male Hoary Bats At A Migratory Stopover Site In Northwestern California, April K. Kaneshiro
Student Summer Scholars Manuscripts
The social structure and genetic make-up of the hoary bat (Lasiurus cinereus) during its fall migration is not well known. Recently, pairs of male hoary bats were observed flying together in the Humboldt Redwoods during the autumn migration. When one individual was netted, the other member of the pair circled around and remained in the area while the two bats called to one another. This suggests a strong social, and a possible genetic, bond between the two males. In order to determine whether these males were related, wing tissue samples were collected from 15 pairs and 76 singleton individuals from …
Behavioural Ecology Of The Black-Flanked Rock-Wallaby (Petrogale Lateralis Lateralis): Refuge Importance In A Variable Environment, Craig Pentland
Behavioural Ecology Of The Black-Flanked Rock-Wallaby (Petrogale Lateralis Lateralis): Refuge Importance In A Variable Environment, Craig Pentland
Theses: Doctorates and Masters
The black-flanked rock-wallaby (Petrogale lateralis lateralis) has suffered a significant decline in its distribution in Western Australia. This has been attributed to introduced predators (predominantly the red fox) and herbivores, fire, and habitat destruction due to clearing. Although since 2001 the Department of Environment and Conservation (DEC) had begun to reintroduce this species back into its former range, little was known of the behavioural ecology of this species. Fox control in the 1980s and 1990s resulted in population increases of rock-wallabies on several reserves in the central wheatbelt of WA. However, recently these populations have rapidly declined despite continuing fox …
Connecting Model Species To Nature: Predator-Induced Long-Term Sensitization In Aplysia Californica, Maria J. Mason, Amanda J. Watkins, Jordann Wakabayashi, Jennifer Buechler, Christine Pepino, Michelle Brown, William G. Wright
Connecting Model Species To Nature: Predator-Induced Long-Term Sensitization In Aplysia Californica, Maria J. Mason, Amanda J. Watkins, Jordann Wakabayashi, Jennifer Buechler, Christine Pepino, Michelle Brown, William G. Wright
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Previous research on sensitization in Aplysia was based entirely on unnatural noxious stimuli, usually electric shock, until our laboratory found that a natural noxious stimulus, a single sublethal lobster attack, causes short-term sensitization. We here extend that finding by demonstrating that multiple lobster attacks induce long-term sensitization (>= 24 h) as well as similar, although not identical, neuronal correlates as observed after electric shock. Together these findings establish long-and short-term sensitization caused by sublethal predator attack as a natural equivalent to sensitization caused by artificial stimuli.
Painted Redstarts In South Texas, 2013-2014, Timothy Brush
Painted Redstarts In South Texas, 2013-2014, Timothy Brush
School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)
No abstract provided.
Four New Mouse Spider Species (Araneae, Mygalomorphae, Actinopodidae, Missulena) From Western Australia, Laura T. Miglio, Danilo Harms, Volker W. Framenau, Mark S. Harvey
Four New Mouse Spider Species (Araneae, Mygalomorphae, Actinopodidae, Missulena) From Western Australia, Laura T. Miglio, Danilo Harms, Volker W. Framenau, Mark S. Harvey
Research outputs 2014 to 2021
Four new species of the Mouse Spider genus Missulena Walckenaer, 1805 (family Actinopodidae) are described from Western Australia based on morphological features of adult males. Missulena leniae sp. n. (from the Carnarvon and Yalgoo biogeographic regions), Missulena mainae sp. n. (Carnarvon), Missulena melissae sp. n. (Pilbara) and Missulena pinguipes sp. n. (Mallee) represent a broad spectrum of morphological diversity found in this genus and differ from other congeners by details of the male copulatory bulb, colour patterns, eye sizes, leg morphology and leg spination. Two of the species, M. pinguipes sp. n. and M. mainae sp. n., are characterised by …
Systematics And Biogeography Of The Australian Burrowing Freshwater Crayfish Genus Engaewa Riekk (Decapoda: Parastacidae), Quinton Burnham
Systematics And Biogeography Of The Australian Burrowing Freshwater Crayfish Genus Engaewa Riekk (Decapoda: Parastacidae), Quinton Burnham
Theses: Doctorates and Masters
The overall aim of this study was to explore the systematics and biogeographic patterns of the freshwater crayfish genus Engaewa Riek, a strongly burrowing freshwater crayfish restricted to the coastal corner of south-western Australia (SWA). The genus Engaewa is a Gondwanan relict with great potential as a marker of historical processes, due to its high habitat specificity and low dispersal ability. This study comprises an extensive taxonomic and phylogenetic revision of the genus Engaewa (using both molecular and morphological data), a detailed study of its distribution and uses the knowledge gained to explore biogeographic patterns in the biodiversity hotspot of …
A Critical Review Of Habitat Use By Feral Cats And Key Directions For Future Research And Management, Tim S. Doherty, Andrew J. Bengsen, Robert A. Davis
A Critical Review Of Habitat Use By Feral Cats And Key Directions For Future Research And Management, Tim S. Doherty, Andrew J. Bengsen, Robert A. Davis
Research outputs 2014 to 2021
Feral cats (Felis catus) have a wide global distribution and cause significant damage to native fauna. Reducing their impacts requires an understanding of how they use habitat and which parts of the landscape should be the focus of management. We reviewed 27 experimental and observational studies conducted around the world over the last 35 years that aimed to examine habitat use by feral and unowned cats. Our aims were to: (1) summarise the current body of literature on habitat use by feral and unowned cats in the context of applicable ecological theory (i.e. habitat selection, foraging theory); (2) develop testable …
Spatial Analysis Of Factors Influencing Long-Term Stress In The Grizzly Bear (Ursus Arctos) Population Of Alberta, Canada, Mathieu Bourbonnais, Trisalyn Nelson, Mark Cattet, Chris T. Darimont, Gordon Stenhouse
Spatial Analysis Of Factors Influencing Long-Term Stress In The Grizzly Bear (Ursus Arctos) Population Of Alberta, Canada, Mathieu Bourbonnais, Trisalyn Nelson, Mark Cattet, Chris T. Darimont, Gordon Stenhouse
Physiology Collection
Non-invasive measures for assessing long-term stress in free ranging mammals are an increasingly important approach for understanding physiological responses to landscape conditions. Using a spatially and temporally expansive dataset of hair cortisol concentrations (HCC) generated from a threatened grizzly bear (Ursus arctos) population in Alberta, Canada, we quantified how variables representing habitat conditions and anthropogenic disturbance impact long-term stress in grizzly bears. We characterized spatial variability in male and female HCC point data using kernel density estimation and quantified variable influence on spatial patterns of male and female HCC stress surfaces using random forests. Separate models were developed for regions …
Beef Cattle Body Temperature During Climatic Stress: A Genome-Wide Association Study, Jeremy T. Howard, Stephen D. Kachman, Warren M. Snelling, E. John Pollak, Daniel C. Ciobanu, Larry A. Kuehn, Matthew L. Spangler
Beef Cattle Body Temperature During Climatic Stress: A Genome-Wide Association Study, Jeremy T. Howard, Stephen D. Kachman, Warren M. Snelling, E. John Pollak, Daniel C. Ciobanu, Larry A. Kuehn, Matthew L. Spangler
Department of Animal Science: Faculty Publications
Cattle are reared in diverse environments and collecting phenotypic body temperature (BT) measurements to characterize BT variation across diverse environments is difficult and expensive. To better understand the genetic basis of BT regulation, a genome-wide association study was conducted utilizing crossbred steers and heifers totaling 239 animals of unknown pedigree and breed fraction. During predicted extreme heat and cold stress events, hourly tympanic and vaginal BT devices were placed in steers and heifers, respect i v e l y. I n d i v i dua l s we r e genotyped with t h e BovineSNP50K_v2 assay and data …
Ecology, Phylogenetics, And Conservation Of Draba Asterophora Complex: A Rare, Alpine, Endemic From Lake Tahoe, Usa, Emily Ruth Smith Putnam
Ecology, Phylogenetics, And Conservation Of Draba Asterophora Complex: A Rare, Alpine, Endemic From Lake Tahoe, Usa, Emily Ruth Smith Putnam
Theses and Dissertations
Rare, alpine, endemic species are particularly at risk for extinction. Alpine environments are especially vulnerable to climate change and human impacts, such as ski resort development and snowmaking. Draba asterophora Payson is a rare, alpine species that occurs only in three disjunct mountain-top regions surrounding Lake Tahoe. It is currently threatened by human impacts, such as ski resorts, as well as indirect influences of climate change and therefore in need of better understanding for conservation purposes. Draba asterophora may be able to serve as a case study for other similarly vulnerable, rare, alpine, endemic species with conservation needs. We utilized …
Post-Fire Interactions Between Soil Water Repellency, Islands Of Fertility, And Bromus Tectorum Invasibility, Kaitlynn Jane Fernelius
Post-Fire Interactions Between Soil Water Repellency, Islands Of Fertility, And Bromus Tectorum Invasibility, Kaitlynn Jane Fernelius
Theses and Dissertations
An intrinsic link exists between soil moisture and soil nitrogen. Factors that increase or decrease soil moisture can have a profound effect on soil nitrogen cycling, which may have later repercussions in the plant community. Post-fire soil water repellency is one factor that can limit soil moisture acquisition and may indirectly affect nitrogen cycling and weed invasion in woody islands of fertility. Plots centered on burned Juniperus osteosperma trees were either left untreated or treated with a surfactant to ameliorate water repellency. Two years later, soils were excavated from the untreated and treated field plots. In the greenhouse, half of …
Dog Behavior Co-Varies With Height, Bodyweight And Skull Shape, Paul D. Mcgreevy, Dana Georgevsky, Johanna Carrasco, Michael Valenzuela, Deborah L. Duffy, James A. Serpell
Dog Behavior Co-Varies With Height, Bodyweight And Skull Shape, Paul D. Mcgreevy, Dana Georgevsky, Johanna Carrasco, Michael Valenzuela, Deborah L. Duffy, James A. Serpell
Eidonomy Collection
Dogs offer unique opportunities to study correlations between morphology and behavior because skull shapes and body shape are so diverse among breeds. Several studies have shown relationships between canine cephalic index (CI: the ratio of skull width to skull length) and neural architecture. Data on the CI of adult, show-quality dogs (six males and six females) were sourced in Australia along with existing data on the breeds’ height, bodyweight and related to data on 36 behavioral traits of companion dogs (n = 8,301) of various common breeds (n = 49) collected internationally using the Canine Behavioral Assessment and Research Questionnaire …
Using Hydroxyapatite From Fish Scales To Prepare Chitosan/Gelatin/Hydroxyapatite Membrane: Exploring Potential For Bone Tissue Engineering, Yi-Cheng Huang, Hao-Wen Chu
Using Hydroxyapatite From Fish Scales To Prepare Chitosan/Gelatin/Hydroxyapatite Membrane: Exploring Potential For Bone Tissue Engineering, Yi-Cheng Huang, Hao-Wen Chu
Journal of Marine Science and Technology–Taiwan
Concerns have recently been raised about the treatment and use of hydroxyapatite, an important component of fish scale. The goal of this investigation is to evaluate the feasibility of using hydroxyapatite extracted from fish scale (FHAP) for bone tissue engineering. FHAP or sintered FHAP (sFHAP) was added to chitosan/gelatin (CS/GEL) mixture to prepare membrane. The effect of FHAP and sFHAP on the physical and chemical properties of the membrane and their affinities towards MG63 cells were studied. Accordingly, the prepared CS/GEL/FHAP membrane was characterized by FTIR (ATRFTIR) and SEM. Following sintering at 800°C for 4 h, the CS/GEL/sFHAP membrane had …
Ba/Ca Ratios In Otoliths Of Southern Bluefin Tuna (Thunnus Maccoyii) As A Biological Tracer Of Upwelling In The Great Australian Bight, Yu-Ting Lin, Chia-Hui Wang, Chen-Feng You, Wann-Nian Tzeng
Ba/Ca Ratios In Otoliths Of Southern Bluefin Tuna (Thunnus Maccoyii) As A Biological Tracer Of Upwelling In The Great Australian Bight, Yu-Ting Lin, Chia-Hui Wang, Chen-Feng You, Wann-Nian Tzeng
Journal of Marine Science and Technology–Taiwan
The southern bluefin tuna (Thunnus maccoyii) is a longlived, large, and highly migratory marine fish in the Indian Ocean. They can live up to 40 years and migrate to the Great Australian Bight in the summer when 1-4 years old. The Great Australian Bight is characterized as the most productive coastal upwelling zone in southern Australia and is the largest area of cool-water carbonate sedimentation in the world. The barium (Ba) level is poor in the open ocean but rich in the upwelling area. This study used otolith Ba/Ca ratios as a natural tag to confirm that southern bluefin tuna …
Mortality In The Ocean - With Lessons From Hydrothermal Vents Off Kueishan Tao, Ne-Taiwan, Hans-Uwe Dahms, Jiang-Shiou Hwang
Mortality In The Ocean - With Lessons From Hydrothermal Vents Off Kueishan Tao, Ne-Taiwan, Hans-Uwe Dahms, Jiang-Shiou Hwang
Journal of Marine Science and Technology–Taiwan
There is evidence of plankton mortality and extinction at various temporal and spatial scales induced by man-made pollution, or by natural causes (ageing, competition, predation, diseases, natural pollution). If mortalities take place at large scale they might become of environmental concern and may impact other biotic compartments including fisheries substantially. Such mortalities are a consistent phenomenon at time scales from geological mass extinctions to regularly occurring HABs, that appear to be increasing on a global basis. Several mass mortalities might have escaped our notice for their patchy and erratic occurrences. This also holds for mortalities caused by hydrothermal vents (HVs) …
A New Genus Of Hemigobius Generic Group Goby Based On Morphological And Molecular Evidence, With Description Of A New Species, Shih-Pin Huang, Jaafar Zeehan, I-Shiung Chen
A New Genus Of Hemigobius Generic Group Goby Based On Morphological And Molecular Evidence, With Description Of A New Species, Shih-Pin Huang, Jaafar Zeehan, I-Shiung Chen
Journal of Marine Science and Technology–Taiwan
Wuhanlinigobius, a new genus of Hemigobius generic group would been established and assigned from Mugilogobius polylepis Wu and Ni, 1985. Mugilogobius polylepis has been regarded as belong to genus Eugnathogobius based on lacking head pores and representing longitudinal sensory papillae in previous taxonomic study. However, we compared the osteological features of Mugilogobius polylepis Wu and Ni, 1985 and Eugnathogobius microps Smith, 1931 as well as the molecular phylogenetic analysis based on the mtDNA ND5, Cyt-b genes and D-loop region. The molecular phylogenetic tree including 9 related Hemigobius generic group reveal that this new genus represents an independent clade which is …
Does High Organic Matter Content Affect Polychaete Assemblages In A Shenzhen Bay Mudflat, China?, Li-Zhe Cai, Jiang-Shiou Hwang, Hans-Uwe Dahms, Su-Jing Fu, Xin-Wei Chen, Chen Wu
Does High Organic Matter Content Affect Polychaete Assemblages In A Shenzhen Bay Mudflat, China?, Li-Zhe Cai, Jiang-Shiou Hwang, Hans-Uwe Dahms, Su-Jing Fu, Xin-Wei Chen, Chen Wu
Journal of Marine Science and Technology–Taiwan
Coastal areas are the first marine systems being impacted by anthropogenic pollution and eutrophication. Organic matter poses a particularly negative impact on the environment due to its oxygen depleting and eutrophying effects. Shenzhen Bay mudflat contains rich organic matter. Here, we compare changes of polychaete assemblage parameters on seasonal data obtained from a Shenzhen Bay mudflat in a three-year study. The results based on the seasonal and spatial variations of polychaete species number, density and biomass, ShannonWiener diversity index, evenness index and richness index confirmed that high organic matter content impacted their distribution. A significant negative correlation between the density …
Ninth East China Sea Conference 2013: International Conference On The Marine Biodiversity And Environmental Fisheries Science Of The East China Sea In Keelung, Taiwan, Ching-Fong Chang, Tai-Wen Hsu, I-Shiung Chen
Ninth East China Sea Conference 2013: International Conference On The Marine Biodiversity And Environmental Fisheries Science Of The East China Sea In Keelung, Taiwan, Ching-Fong Chang, Tai-Wen Hsu, I-Shiung Chen
Journal of Marine Science and Technology–Taiwan
No abstract provided.
First Record Of The Hairy Squat Lobster Genus Lauriea Baba, 1971 (Crustacea: Decapoda: Anomura: Galatheidae) From Kenting, Southern Taiwan, Chia-Wei Lin, Pi-Hsien Kuo, Tin-Yam Chan
First Record Of The Hairy Squat Lobster Genus Lauriea Baba, 1971 (Crustacea: Decapoda: Anomura: Galatheidae) From Kenting, Southern Taiwan, Chia-Wei Lin, Pi-Hsien Kuo, Tin-Yam Chan
Journal of Marine Science and Technology–Taiwan
The shallow water squat lobster genus Lauriea Baba, 1971 is reported for the first time from Taiwan. The three specimens collected from Kenting, southern Taiwan belong to Lauriea siagiani Baba, 1994. Lauriea siagiani is very distinctive by its striking coloration and having dense long plumose setae on the body. Its report in Taiwan fills the gap of geographical distribution of this species from Indonesia to Japan.
New Records Of Deep-Sea Blind Lobsters (Crustacea: Decapoda: Polychelidae) From Taiwan, Su-Ching Chang, Shane T. Ahyong, Tin-Yam Chan
New Records Of Deep-Sea Blind Lobsters (Crustacea: Decapoda: Polychelidae) From Taiwan, Su-Ching Chang, Shane T. Ahyong, Tin-Yam Chan
Journal of Marine Science and Technology–Taiwan
The deep-sea lobster family, Polychelidae Wood-Mason, 1875, contains six genera and 38 species worldwide, of which nine species in three genera have been reported from Taiwan. Herein we present four new records of Polychelidae from Taiwan, namely Pentacheles validus A. Milne-Edwards, 1880, Stereomastis surda (Galil, 2000), Willemoesia forceps A. Milne-Edwards, 1880, and W. leptodactyla (Thomson, 1873). A total of 13 species in four genera of Polychelidae are now known from Taiwan; a key to the species is provided.
Decadal Variation Of Wintertime Sea Surface Temperature In The Taiwan Strait, Yi-Chun Kuo, Ming-An Lee
Decadal Variation Of Wintertime Sea Surface Temperature In The Taiwan Strait, Yi-Chun Kuo, Ming-An Lee
Journal of Marine Science and Technology–Taiwan
Long-term advanced very-high-resolution radiometer (AVHRR) data with a resolution of 0.04° provided clearer views of sea surface temperature (SST) warming and variation associated with ENSO in the Taiwan Strait (TS) during wintertime (1981-2013). Over the 33 year period, the spatial average of winter SST warming in the TS reached to 3°C. From 1981- 2001, the SST exhibited an increasing trend, with the fastest warming taking place from 1991-2001 after which it seemed to pause. From 2002-2012, the SST showed a cooling trend (-0.08°C/yr). Spatial variation of the warming was distinct, with the highest values concentrated in the winter fronts region, …
Two New Species Of Vanderhorstia Smith, 1949 (Teleostei: Gobiidae) From Ryukyus, Japan, Toshiyuki Suzuki, I-Shiung Chen
Two New Species Of Vanderhorstia Smith, 1949 (Teleostei: Gobiidae) From Ryukyus, Japan, Toshiyuki Suzuki, I-Shiung Chen
Journal of Marine Science and Technology–Taiwan
Two new gobiid species of Vanderhorstia Smith, 1959 which have been recently collected from Japanese waters. Both new species are distributed in marine coral reef habitats off the Ryukyus, Japan. Vanderhorstia cyanolineata sp. nov. can be well distinguished from congeners by the following unique combination of features: (1) fin ray counts: second dorsal fin rays I/12, anal fin rays I/12; pectoral fin rays 18-19; (2) fin shape: low first dorsal fin with about equal 3rd to 5th spinous rays, caudal fin large and middle rays as sword-like projection; (3) scales: LR 50-52; TR 18; and (4) its own specific colouration …
The Diel Dynamics Of Ciliate Community In A Tide-Pool, Chien-Fu Chao, Bo-Wei Wang, Chao-Hsiung Cheng, Kuo-Ping Chiang
The Diel Dynamics Of Ciliate Community In A Tide-Pool, Chien-Fu Chao, Bo-Wei Wang, Chao-Hsiung Cheng, Kuo-Ping Chiang
Journal of Marine Science and Technology–Taiwan
We investigated the diel cycle mechanism of a tide-pool ciliate community of the northeastern coast of Taiwan. The investigation was conducted on 17th-18th June (typical summer weather), and on 23th -24th July 2013 (10 days after a typhoon). In June, the tide-pool ecosystem was an independent and the excystment of ciliates in the tide-pool caused a dramatic increase in population abundance, as well as composition change. In July, there was no significant difference between the species composition in the tide-pool and that in the surrounding coastal water. However, the abundance of ciliates in the tide-pool was lower due to the …
Dna Barcoding Of Coastal Larval Fish Communities Of Dongshar Island, South China Sea Revealed By Mitochondrial Co I Sequences, I-Shiung Chen, Kwang-Tsao Shao, Shao-Liang Hsu, Gwo-Ching Gong, Yu-Chih Chen, Ta-Kang Liu
Dna Barcoding Of Coastal Larval Fish Communities Of Dongshar Island, South China Sea Revealed By Mitochondrial Co I Sequences, I-Shiung Chen, Kwang-Tsao Shao, Shao-Liang Hsu, Gwo-Ching Gong, Yu-Chih Chen, Ta-Kang Liu
Journal of Marine Science and Technology–Taiwan
The 70 different samples of larval fish morphotypes have been successfully amplified and sequenced in detail via PCR amplification for the partial sequences of mtDNA CO I gene. The overall genetic similarities ranged from 83% to 100%. Totally 26 different fish species can be detected and analyzed. There are 16 fish species can be identified into specific level. However, there are remaining 12 species can be expected just into suggested fish generic level. Apparently, two major groups of taxa would be the members of Gobiidae and Apogonidae which comprised 50% of total species diversity, and also comprised 67% of total …
Fishing Vs. Climate Change: An Example Of Filefish (Thamnaconus Modestus) In The Northern East China Sea, Sukgeun Jung, Hyung Kee Cha
Fishing Vs. Climate Change: An Example Of Filefish (Thamnaconus Modestus) In The Northern East China Sea, Sukgeun Jung, Hyung Kee Cha
Journal of Marine Science and Technology–Taiwan
The main cause of annual fluctuations in catch and species composition of fisheries is usually uncertain, but a prevailing view has been that fishing effects are more critical than environmental variability. Filefish is a good anecdote: many Korean fisheries scientists have attributed the sudden collapse of Korean filefish fisheries in the early 1990s to overfishing, especially by trawl fisheries in the northern East China Sea (NECS). However, interdisciplinary researches have revealed that climate-driven, multi-decadal variability in oceanic conditions impacts both fish and fisheries around the world. To test the two alternative hypotheses (i.e., fishing and climate) as the major cause …
Seasonal Dynamics Of Flatfish Assemblage In Coastal Waters Off Northeastern Taiwan: With Implications For Shift In Species Dominance Of The Ecosystem, Shyh-Bin Wang, Wen-Kwen Chen, Shoou-Jeng Joung
Seasonal Dynamics Of Flatfish Assemblage In Coastal Waters Off Northeastern Taiwan: With Implications For Shift In Species Dominance Of The Ecosystem, Shyh-Bin Wang, Wen-Kwen Chen, Shoou-Jeng Joung
Journal of Marine Science and Technology–Taiwan
The seasonal dynamics of flatfish assemblage in the coastal waters off northeastern Taiwan was examined based on samples collected between March 2004 and March 2005 taken by bottom trawlers and landed at Da-Shi fishing port, Yilan county. A total of 28 species from 5 families and 18 genera were found. The Bothidae was the most dominant family, accounting for 81% of the total catch, while the most dominant species was the Pseudorhombus pentophthalmus. Species richness and diversity were high between the end of fall and the end of spring, but low in summer. Multivariate analyses based on cluster and nonparametric …
Age And Growth Study Of The Jack Mackerel (Trachurus Japonicus) In The Northeatern Waters Off Taiwan, Hsueh-Jung Lu, Chih-Chun Chen, Jen-Chia Cheng
Age And Growth Study Of The Jack Mackerel (Trachurus Japonicus) In The Northeatern Waters Off Taiwan, Hsueh-Jung Lu, Chih-Chun Chen, Jen-Chia Cheng
Journal of Marine Science and Technology–Taiwan
Jack mackerel (Trachurus japonicus) is one of the most important fish resources in the northeastern Taiwan. Because of the flourishing of Taiwanese seiner fisheries in recent years, the proportion and catch of jack mackerels have increased. However, the studies on their age and growth are outdated, thus data on the catch-at-age composition are lacking. The present study collected jack mackerel otolith samples from May, 2010, to April, 2011, for age determination and combined those data with length and weight data from 2005 to January, 2012, to investigate the catch-at-age of jack mackerel in the northeastern waters off Taiwan. The regression …
Summer Assemblages Of Ichthyoplankton In The Waters Of The East China Sea Shelf And Around Taiwan In 2007, Ming-An Lee, Yi-Chen Wang, Yu-Kai Chen, Wen-Yu Chen, Long-Jing Wu, Don-Chung Liu, Ji-Lun Wu, Sheng-Yuan Teng
Summer Assemblages Of Ichthyoplankton In The Waters Of The East China Sea Shelf And Around Taiwan In 2007, Ming-An Lee, Yi-Chen Wang, Yu-Kai Chen, Wen-Yu Chen, Long-Jing Wu, Don-Chung Liu, Ji-Lun Wu, Sheng-Yuan Teng
Journal of Marine Science and Technology–Taiwan
This study investigated the relationships between assemblages of larval fish and hydrographic features in the East China Sea (ECS) and seas surrounding Taiwan during the summer of 2007. A survey was conducted from 2007 July 1 to 2007 July 11 in the ECS and from 2007 July 4 to 2007 July 16 in the waters surrounding Taiwan. A total of 12,670 larval fishes belonging to 95 families, 163 genes, and 189 species were identified. Engraulis japonicus and Sillago japonica were the 2 dominant species, accounting for 56.15% and 6.66% of the fish larvae samples. The cluster analysis results showed that …