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Journal articles on the topic 'Anguillid eel'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Honda, Satoshi, Dina Muthmainnah, Ni Komang Suryati, et al. "CURRENT STATUS AND PROBLEMS OF THE CATCH STATISTICS ON ANGUILLID EEL FISHERY IN INDONESIA." Marine Research in Indonesia 41, no. 1 (2016): 1–14. http://dx.doi.org/10.14203/mri.v41i1.94.

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To compensate the decline of the populations of temperate anguillid eels, tropical anguillid eels become getting attention of East Asian eel market in recent years. Many eel farms have been established in Java Island to culture tropical anguillid eels intending to export the products to East Asia. Since eel farming is reliant on wild-caught anguillid eels such as glass eels, elvers and yellow eels, these eel seeds have been captured in various places in Indonesia. However, it is still unknown that how much of tropical anguillid eels are caught as seeds for eel farming. This study showed two di

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2

Hilario, Joyce, Casiano Jr Choresca, Ma Jodecel Dantinga, Faith Loraine Magbanua, and Ma Theresa Oclos. "Identification of Tropical Freshwater Eels, Anguilla spp., in Cagayan River, Philippines." Philippine Agricultural Scientist 105, no. 3 (2022): 226–35. http://dx.doi.org/10.62550/abc001021.

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Anguillid eels are high-value food fish with 16 known species worldwide. Due to its taxonomic ambiguity and insufficient data on species composition, this family of freshwater eels were inadvertently regarded as a single species. This study collected 63 freshwater eels at 3 life stages (glass eel, elver, yellow eel) from Cagayan River, Philippines, to evaluate the accuracy of morphological identification in comparison with molecular analysis. Morphological results displayed clear distinctiveness between Anguilla bicolor and Anguilla marmorata despite some overlapping physical characteristics b

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3

Zan, Nur Dhabita, Ain Sarbini, Hussein Taha, et al. "Occurrence and ecological implication of a tropical anguillid eel, Anguilla marmorata, in Brunei Darussalam, Borneo Island." Zoologia 37 (June 3, 2020): 1–7. https://doi.org/10.3897/zoologia.37.e39468.

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Tropical anguillid eels account for two-thirds of the 19 species in Anguilla Schrank, 1798. However, information on the species diversity, geographical distribution, and life histories of the tropical eels is very limited. Recent studies suggested that morphological species identification of the tropical anguillid eels should be validated by molecular analysis for accurate identification. After surveying for three years, two anguillid eels were found in Brunei Darussalam, Borneo Island. They were firstly identified as Anguilla marmorata Quoy & Gaimard, 1824 using morphological analysis and

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4

Zan, Nur Dhabita, Ain Sarbini, Hussein Taha, et al. "Occurrence and ecological implication of a tropical anguillid eel, Anguilla marmorata, in Brunei Darussalam, Borneo Island." Zoologia 37 (June 3, 2020): 1–7. http://dx.doi.org/10.3897/zoologia.37.e39468.

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Tropical anguillid eels account for two-thirds of the 19 species in Anguilla Schrank, 1798. However, information on the species diversity, geographical distribution, and life histories of the tropical eels is very limited. Recent studies suggested that morphological species identification of the tropical anguillid eels should be validated by molecular analysis for accurate identification. After surveying for three years, two anguillid eels were found in Brunei Darussalam, Borneo Island. They were firstly identified as Anguilla marmorata Quoy &amp; Gaimard, 1824 using morphological analysis

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5

Thuc Tuan, Nguyen. "An overview of the Anguillid eel culture in Vietnam." Journal of Aquaculture & Marine Biology 10, no. 3 (2021): 96–101. http://dx.doi.org/10.15406/jamb.2021.10.00312.

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The wild eel fishery and eel farming are playing an increasingly important role in aquaculture. Most of the Anguillid eel fries at their glass eel stage are caught in the two provinces of Vietnam, viz., Phu Yen and Binh Dinh, which accounts for over 80% and 10-15%, respectively. The stages of raising eels in Vietnam are very diverse with the survival rate of Anguilla Marmorata is approx. 60% through glass eel and elver stages. The major eel grow-out area of Vietnam is in Mekong delta. Ca Mau province is the highest in eel farming among the 14 provinces in the country. There are over 1,000 eel

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6

Wibowo, Arif, Nicolas Hubert, Hadi Dahruddin, et al. "Assessing Temporal Patterns and Species Composition of Glass Eel (Anguilla spp.) Cohorts in Sumatra and Java Using DNA Barcodes." Diversity 13, no. 5 (2021): 193. http://dx.doi.org/10.3390/d13050193.

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Anguillid eels are widely acknowledged for their ecological and socio-economic value in many countries. Yet, knowledge regarding their biodiversity, distribution and abundance remains superficial—particularly in tropical countries such as Indonesia, where demand for anguillid eels is steadily increasing along with the threat imposed by river infrastructure developments. We investigated the diversity of anguillid eels on the western Indonesian islands of Sumatra and Java using automated molecular classification and genetic species delimitation methods to explore temporal patterns of glass eel c

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7

Oreha, Jeļena, Aleksandra Morozova, Alberts Garkajs, et al. "Genetic Diversity and Distribution of Haplotypes of Freshwater Eel in Baltic Lakeland Based on Mitochondrial DNA D-Loop and Cytochrome b Sequence Variation." Diversity 16, no. 9 (2024): 522. http://dx.doi.org/10.3390/d16090522.

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The European eel (Anguilla anguilla (L.)) is a unique catadromous euryhaline fish and the only anguillid eel species classified as ‘critically endangered’. The Baltic Lakeland area contains naturally recruited and introduced eels. There is great uncertainty regarding a baseline for the location and number of naturally dispersed eels in the region. Little is known about the genetic structure of the European eel populations in Baltic countries. The estimation of population genetic structure is important for the efficient management of naturally recruited and introduced eels. Two mitochondrial re

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8

Abdul, Kadir Siti Raudah, Rasid Mohamad Hafiz Farhan Abdul, Kok Onn Kwong, Li Lian Wong, and Takaomi Arai. "Occurrence and the ecological implication of a tropical anguillid eel Anguilla marmorata from peninsular Malaysia." ZooKeys 695 (September 5, 2017): 103–10. https://doi.org/10.3897/zookeys.695.13298.

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Recent studies suggested that accurate species identification in the tropical anguillid eels based on morphological examination requires confirmation by molecular genetic analysis. Previous studies found that two tropical anguillid eels, Anguilla bicolor bicolor and A. bengalensis bengalensis, were found in peninsular Malaysia (West Malaysia) based on morphological and molecular genetic analyses. This study is the first record of A. marmorata in peninsular Malaysia confirmed by both morphological and molecular genetic analyses. The present study also suggests that accurate tropical eel species

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9

Sugeha, Hagi Yulia, Sasanti Retno Suharti, Sam Wouthuyzen, and Kurnaen Sumadhiharga. "BIODIVERSITY, DISTRIBUTION, AND ABUNDANCE OF THE TROPICAL ANGUILLID EELS IN THE INDONESIAN WATERS." Marine Research in Indonesia 33, no. 2 (2008): 129–37. http://dx.doi.org/10.14203/mri.v33i2.486.

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In order to understand biodiversity, distribution, and abundance among the tropical anguillid eels in the Indonesian waters, inshore migration mechanism of the juvenile anguillid eel (glass eel) to the estuaries of western, central, and eastern region of Indonesian waters were examined using both morphology and genetic analyses. A total of 9 species/sub species of anguillid eels (Anguilla bicolor bicolor, A. nebulosa nebulosa, A. bicolor pacifica, A. interioris, A. borneensis, A. celebesensis, A. marinorata, A. obscura and A. megastoma) were recognized to recruit at the mouth of 15 rivers thro

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10

Fenske, Kari H., Michael J. Wilberg, David H. Secor, and Mary C. Fabrizio. "An age- and sex-structured assessment model for American eels (Anguilla rostrata) in the Potomac River, Maryland." Canadian Journal of Fisheries and Aquatic Sciences 68, no. 6 (2011): 1024–37. http://dx.doi.org/10.1139/f2011-038.

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American eel ( Anguilla rostrata ) and European eel ( Anguilla anguilla ) populations have declined since the 1980s prompting concern about their status and the causes of decline, but stock assessment approaches to estimate effects of fishing on these populations are lacking. Since 1964, 16% of United States commercial American eel harvest came from the Potomac River, yet American eel abundance, production, and fishing mortality is poorly understood in this system. We developed an age- and sex-structured assessment model for 1980–2008 and compared results with the F50% biological reference poi

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11

Serdiati, Novalina, Samliok Ndobe, Eka Rosyida, and Abigail Mary Moore. "Barcoding a glass eel migration: a snapshot of taxa migrating upstream in the Palu River, Central Sulawesi, Indonesia." IOP Conference Series: Earth and Environmental Science 1272, no. 1 (2023): 012020. http://dx.doi.org/10.1088/1755-1315/1272/1/012020.

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Abstract Eels of the genus Anguilla are high value food fish with a catadromous life cycle. As tropical anguillid glass eels migrate to freshwater in multi-species schools, effective management of these and other diadromous resources requires reliable data. Previous research using two morphological methods concluded that between three and five anguillid eels recruit to the Palu River in Central Sulawesi, Indonesia with interannual and seasonal variations in species composition, size structure, and co-migrating taxa. Some glass eels and other taxa could not be identified based on external morph

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12

Tsukamoto, K., J. Aoyama, and M. J. Miller. "Migration, speciation, and the evolution of diadromy in anguillid eels." Canadian Journal of Fisheries and Aquatic Sciences 59, no. 12 (2002): 1989–98. http://dx.doi.org/10.1139/f02-165.

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Recent findings and hypotheses about the migration, spawning ecology, phylogenetic relationships, and possible mechanisms of speciation of anguillid eels are overviewed. The offshore distribution and otolith microstructure of small leptocephali suggest that the Japanese eel Anguilla japonica may spawn at seamounts west of the Mariana Islands in the western North Pacific during the new moon of each month from April to November. Some temperate eels have been found to remain in coastal areas after recruitment without a freshwater growth phase (ocean residents or "sea eels"), showing flexible patt

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13

Munk, Peter, Michael M. Hansen, Gregory E. Maes, et al. "Oceanic fronts in the Sargasso Sea control the early life and drift of Atlantic eels." Proceedings of the Royal Society B: Biological Sciences 277, no. 1700 (2010): 3593–99. http://dx.doi.org/10.1098/rspb.2010.0900.

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Anguillid freshwater eels show remarkable life histories. In the Atlantic, the European eel ( Anguilla anguilla ) and American eel ( Anguilla rostrata ) undertake extensive migrations to spawn in the oceanic Sargasso Sea, and subsequently the offspring drift to foraging areas in Europe and North America, first as leaf-like leptocephali larvae that later metamorphose into glass eels. Since recruitment of European and American glass eels has declined drastically during past decades, there is a strong demand for further understanding of the early, oceanic phase of their life cycle. Consequently,

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14

Arai, Takaomi. "Early Life History and Recruitment Processes of a Tropical Anguillid Eel Anguilla marmorata to the Pacific Coast, as Revealed by Otolith Sr:Ca Ratios and Microstructure." Biology 11, no. 6 (2022): 803. http://dx.doi.org/10.3390/biology11060803.

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Recent progress in otolith microchemistry especially in strontium:calcium (Sr:Ca) ratios has revealed significant features of life histories in fishes. A catadromous eel, Anguilla marmorata, has the widest distribution among anguillid eels throughout the Indo-Pacific region. However, its dispersal and recruitment mechanisms in the ocean are still unknown. The temporal and spatial variations of early life history characteristics in a tropical anguillid eel A. marmorata were examined by means of otolith Sr:Ca ratios and microstructure to understand the larval transport and recruitment processes

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15

Kume, Manabu, Yudai Yoshikawa, Tomoichiro Tanaka, Shun Watanabe, Hiromichi Mitamura, and Yoh Yamashita. "Water temperature and precipitation stimulate small-sized Japanese eels to climb a low-height vertical weir." PLOS ONE 17, no. 12 (2022): e0279617. http://dx.doi.org/10.1371/journal.pone.0279617.

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Although river-crossing structures can have a detrimental effect on the movement and distribution of anguillid eels (genus Anguilla), they have inhabited locations upstream of river-crossing structures in many rivers. However, the growth stage in which the eels start to climb river-crossing structures remains unclear. In this study, we directly observed, using infrared video camera systems, that the Japanese eel (Anguilla japonica) climbs a low-height vertical weir as a migratory barrier, confirming the ability of eels to climb over a low-height weir within a river. All eels climbed the weir a

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16

Wibowo, Arif, Rezki Antony, Samuel Samuel, Anna-Lena Musch, and Dwi Atminarso. "OCCURRENCES OF TROPICAL ANGUILLIDS EELS IDENTIFIED THROUGH DNA BARCODES AT KEDURANG RIVER, SUMATRA ISLAND, INDONESIA." Indonesian Fisheries Research Journal 27, no. 2 (2021): 91. http://dx.doi.org/10.15578/ifrj.27.2.2021.91-98.

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Understanding the geographic distribution of tropical anguillids is important for the conservation of these species. Delimitation of species distribution area is a fundamental task with important implications for the understanding of biodiversity and conservation. However, their geographic ranges are poorly understood, mostly because of the technical difficulties of identifying anguillids by morphological characteristics, especially at the glass eel stage. The current work aims to provide the information on recruitment of tropical anguilid eels in the Kedurang River by using analysis of specie

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17

Bellec, Laure, Joelle Cabon, Sven Bergmann, et al. "Evolutionary dynamics and genetic diversity from three genes of Anguillid rhabdovirus." Journal of General Virology 95, no. 11 (2014): 2390–401. http://dx.doi.org/10.1099/vir.0.069443-0.

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Wild freshwater eel populations have dramatically declined in recent past decades in Europe and America, partially through the impact of several factors including the wide spread of infectious diseases. The anguillid rhabdoviruses eel virus European X (EVEX) and eel virus American (EVA) potentially play a role in this decline, even if their real contribution is still unclear. In this study, we investigate the evolutionary dynamics and genetic diversity of anguiillid rhabdoviruses by analysing sequences from the glycoprotein, nucleoprotein and phosphoprotein (P) genes of 57 viral strains collec

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18

Friedland, Kevin D., Michael J. Miller, and Brian Knights. "Oceanic changes in the Sargasso Sea and declines in recruitment of the European eel." ICES Journal of Marine Science 64, no. 3 (2007): 519–30. http://dx.doi.org/10.1093/icesjms/fsm022.

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Abstract Friedland, K. D., Miller, M. J., and Knights, B. 2007. Oceanic changes in the Sargasso Sea and declines in recruitment of the European eel. – ICES Journal of Marine Science, 64: 519–530. Anguillid eel recruitment in the North Atlantic has declined in recent decades, raising concerns that climatic changes in the Sargasso Sea may be influencing oceanic reproduction and larval survival. There is a significant negative correlation between the North Atlantic Oscillation and long-term variations in catches of glass eel stages of the European eel Anguilla anguilla recorded by the fishery ind

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19

Li, Ying-Ying, Jin-Xian Yang, Xi Chen, Qiang Chen, Tie-Ying Song, and Jun-Qing Ge. "Proteomic Profiling Skin Mucus of European Eel Anguilla anguilla Infected with Anguillid Herpesvirus." International Journal of Molecular Sciences 23, no. 19 (2022): 11283. http://dx.doi.org/10.3390/ijms231911283.

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Anguillid herpesvirus 1 (AngHV) is an important viral pathogen affecting eel. This study was designed to investigate the potential molecular mechanisms and immune response elicited at the protein levels in the skin mucus of AngHV-infected Anguilla anguilla. Tandem mass tag (TMT)-labelling proteomics with the liquid chromatography tandem mass spectrometry (LC-MS/MS) was used for performing quantitative identification of the proteins. In addition, the quantitative protein amount was detected by parallel reaction monitoring (PRM) analysis. A total of 3486 proteins were identified, of which 2935 w

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20

Castonguay, Martin, and Caroline M. F. Durif. "Understanding the decline in anguillid eels." ICES Journal of Marine Science 73, no. 1 (2015): 1–4. http://dx.doi.org/10.1093/icesjms/fsv256.

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Abstract This symposium issue of the ICES Journal of Marine Science contains 16 contributions from the second International Eels Symposium held during the American Fisheries Society (AFS) Annual Meeting (August 2014, Québec City, Canada). This symposium followed the first International Eels Symposium held in 2003, which emphasized the international scope of the Anguilla conservation problem. This second symposium reviewed a decade of research on biology and life history, genetics and genomics, reproduction, oceanic biology, early life history, population dynamics, assessment and management, ee

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Norarfan, Ahmad Fathi, Siti Shazwani Azreena Mokti, Hussein Taha, Muhamad Amin, Muhamad Ali, and Takaomi Arai. "DNA barcoding of a tropical anguillid eel, Anguilla bicolor (Actinopterygii: Anguilliformes), in Indo-Pacific region and notes on its population structure." Zoologia 38 (March 24, 2021): 1–7. http://dx.doi.org/10.3897/zoologia.38.e59332.

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The tropical anguillid eel, Anguilla bicolor McCelland, 1844, includes two subspecies, Anguilla bicolor bicolor McCelland, 1844 and Anguilla bicolor pacifica Schmidt, 1928, and is distributed across the Indo-Pacific region. Although A. bicolor is widely distributed and recognized as an important fish resource in the Indo-Pacific region, few studies have been conducted on its genetic variation and population structure. DNA barcoding of A. bicolor specimens collected in the Indo-Pacific region was carried out in this study using mitochondrial cytochrome c oxidase subunit I. Anguilla bicolor was

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Norarfan, Ahmad Fathi, Mokti Siti Shazwani Azreena, Hussein Taha, Muhamad Amin, Muhamad Ali, and Takaomi Arai. "DNA barcoding of a tropical anguillid eel, Anguilla bicolor (Actinopterygii: Anguilliformes), in Indo-Pacific region and notes on its population structure." Zoologia 38 (March 24, 2021): 1–7. https://doi.org/10.3897/zoologia.38.e59332.

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The tropical anguillid eel, Anguilla bicolor McCelland, 1844, includes two subspecies, Anguilla bicolor bicolor McCelland, 1844 and Anguilla bicolor pacifica Schmidt, 1928, and is distributed across the Indo-Pacific region. Although A. bicolor is widely distributed and recognized as an important fish resource in the Indo-Pacific region, few studies have been conducted on its genetic variation and population structure. DNA barcoding of A. bicolor specimens collected in the Indo-Pacific region was carried out in this study using mitochondrial cytochrome c oxidase subunit I. Anguilla bicolor was

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23

Aya, Frolan, John Carlo Unida, Maria Rowena Romana-Eguia, and Nerissa Salayo. "Alternate Day Feeding as a Cost-effective Strategy for Tank Culture of the Pacific Shortfin Eel Anguilla bicolor pacifica." Philippine Agricultural Scientist 106, no. 3 (2023): 281–92. http://dx.doi.org/10.62550/kk111022.

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There is a growing interest in the aquaculture of tropical anguillid eels as an export commodity. However, studies on feeding strategies, and the present demand to reduce feed costs need to be addressed to ensure the economic viability of eel farming. In this study, the effects of daily (DF) and alternate day (ADF) feeding on growth, feed utilization, body composition, blood chemistry, liver and intestinal morphology, and economic viability in the Pacific shortfin eel Anguilla bicolor pacifica were examined. Each feeding group of 30 elvers (166.25 ± 16.23 g mean initial wt) were randomly stock

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Park, Sung-Woo, Eun-Bin Jung, and Dong-Wan Kim. "Outbreak of Anguillid herpesvirus-1 (AngHV-1) infection in cultured shortfin eel (Anguilla bicolor) in Korea." Journal of fish pathology 25, no. 3 (2012): 151–58. http://dx.doi.org/10.7847/jfp.2012.25.3.151.

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25

Watupongoh, Navy Novy Jefry, and Krismono Krismono. "KEBIJAKAN TENTANG INTEGRASI AKTIVITAS PENANGKAPAN DENGAN PEMBUDIDAYAAN UNTUK KEBERLANJUTAN SUMBERDAYA IKAN SIDAT (Anguilla spp) DI DAS POSO." Jurnal Kebijakan Perikanan Indonesia 7, no. 1 (2015): 37. http://dx.doi.org/10.15578/jkpi.7.1.2015.37-44.

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<p>Daerah Aliran Sungai (DAS) Poso merupakan salah satu daerah penangkapan ikan sidat, memiliki luas 1.101,87 km2 dan panjang ± 68,70 km. Ikan sidat di perairan Poso merupakan komoditas perikanan yang memiliki nilai ekonomis tinggi (harga Rp.100.000,-/kg) dan menjadi primadona hasil tangkapan. Ikan sidat yang hidup di DAS Poso terdapat 5 jenis, yaitu A. marmorata, A. bicolor pasific, A. celebensis, A. borneensis dan A. interioris. Saat ini telah terjadi penurunan produksi induk maupun glass eel ikan sidat di DAS Poso disebabkan oleh penangkapan yang belum memperhatikan faktor kelestarian

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26

Béguer-Pon, Mélanie, Julian J. Dodson, Martin Castonguay, Don Jellyman, Kim Aarestrup, and Katsumi Tsukamoto. "Tracking anguillid eels: five decades of telemetry-based research." Marine and Freshwater Research 69, no. 2 (2018): 199. http://dx.doi.org/10.1071/mf17137.

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Advances in telemetry technologies have provided new opportunities to reveal the often-cryptic spatial ecology of anguillid eels. Herein we review 105 studies published between 1972 and 2016 that used a variety of telemetry technologies to study the movements of eels in a variety of habitats. Eight anguillid species have been tracked in three main geographical locations: Western Europe, the north-eastern part of North America and Australasia. Telemetry has proven to be an effective method for determining patterns of yellow eel movements in continental waters. It has also been used extensively

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Arai, Takaomi, Aya Kotake, Chris Harrod, Michelle Morrissey, and T. Kieran McCarthy. "Ecological plasticity of the European eel Anguilla anguilla in a tidal Atlantic lake system in Ireland." Journal of the Marine Biological Association of the United Kingdom 99, no. 5 (2019): 1189–95. http://dx.doi.org/10.1017/s0025315419000031.

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AbstractRecent studies have shown that anguillid eel populations in habitats spanning the marine–freshwater ecotone can display extreme plasticity in the range of catadromy expressed by individual fish. The apparent use of marine and freshwater habitats by the European eel Anguilla anguilla was examined by analysing the strontium (Sr) and calcium (Ca) concentrations in otoliths of eels collected from a tidal Atlantic lake system in Ireland. Variations of the Sr:Ca ratio in the otoliths indicated that a variety of environmental salinities had been experienced in the habitats that were occupied

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Jessop, B. M. "Geographic effects on American eel (Anguilla rostrata) life history characteristics and strategies." Canadian Journal of Fisheries and Aquatic Sciences 67, no. 2 (2010): 326–46. http://dx.doi.org/10.1139/f09-189.

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Latitudinal variability in length and age at maturity and annual growth rate for the American eel ( Anguilla rostrata ) along the Atlantic coast of North America was examined with respect to life history strategies and theory. Maturing (silver phase) female lengths and ages increased with increasing latitude (and distance) from the Sargasso Sea spawning site, as did male ages but not lengths. Growth rates for females (and males) declined with increasing latitude south of 44°N latitude, approximately the entrance to the Cabot Strait, but were constant or increased within the Gulf of St. Lawrenc

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29

Hewavitharane, C. A., T. D. Pickering, C. Rico, and N. Mochioka. "Early life history of tropical freshwater eels (Anguilla spp.) recruiting to Viti Levu, Fiji Islands, in the western South Pacific." Marine and Freshwater Research 71, no. 4 (2020): 452. http://dx.doi.org/10.1071/mf19047.

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Abstract. The oceanic early life histories of three species of tropical anguillid glass eels, namely Anguilla marmorata, Anguilla megastoma and Anguilla obscura, recruiting to Viti Levu, Fiji Islands, in the western South Pacific, were studied using otolith microstructures of 94 individuals. A. megastoma had the shortest leptocephalus duration, age at recruitment and metamorphosis stage (mean±s.d. 104.7±7.2, 141.3±8.7 and 36.6±8.5 days respectively), followed by A. marmorata (September–October recruitment peak: 113.0±11.9, 115.1±8.3 and 39.2±11.1 days respectively; April recruitment peak: 152.

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Muchiri, Zipporah, Charles Kihia, Emmanuel Mbaru, and Stephen Karori. "Heavy metal bioaccumulation in anguillids from rivers in Kenya." Western Indian Ocean Journal of Marine Science 24, no. 1 (2025): 75–85. https://doi.org/10.4314/wiojms.v24i1.8.

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Heavy metal bioaccumulation was examined in anguillids from the Athi-Galana-Sabaki (AGS) and Ramisi Rivers in Kenya, which have differing contaminant sources and anthropogenic disturbances. Water and eel tissue samples were analysed for conventional water quality parameters and heavy metals, respectively. Arsenic, lead, and cadmium concentrations were determined using ICP-OES. Results showed that pH was comparable among rivers, but significant differences in temperature, dissolved oxygen, and salinity were observed. Arsenic and cadmium concentrations were comparable between the rivers and exce

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31

Samir, Octavianto, Mohammad Mukhlis Kamal, Rahmat Kurnia, Sekar Larashati, Triyanto, and Mey Ristanti Widoretno. "Morphometric and Genetic Variations of Freshwater Eels (Anguilla spp.) in Poso River, Central Sulawesi: Implications for Conservation Strategies." LIMNOTEK Perairan Darat Tropis di Indonesia 30, no. 2 (2024): 1–17. https://doi.org/10.55981/limnotek.2024.5582.

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The freshwater eel, Anguillids, is a valuable nutrition and commodity fish found in various freshwater environments. However, the world's population of Anguillids are declining because of habitat degradation, pollution, and barriers to migration, all of which are prevalent threats to freshwater ecosystems such as the Poso River in Central Sulawesi. Establishing conservation areas is one of the efforts to protect Anguillids and their habitats, which requires information on the anguillids morphometrics and genetics, where high morphometric and genetic variations are indicators of adaptation or e

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32

Guo, Rui, Zheng Zhang, Tianliang He, et al. "Isolation and Identification of a New Isolate of Anguillid Herpesvirus 1 from Farmed American Eels (Anguilla rostrata) in China." Viruses 14, no. 12 (2022): 2722. http://dx.doi.org/10.3390/v14122722.

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Anguillid herpesvirus 1 (AngHV-1) is a pathogen that causes hemorrhagic disease in various farmed and wild freshwater eel species, resulting in significant economic losses. Although AngHV-1 has been detected in the American eel (Anguilla rostrata), its pathogenicity has not been well characterized. In this study, an AngHV-1 isolate, tentatively named AngHV-1-FC, was isolated from diseased American eels with similar symptoms as those observed in AngHV-1-infected European eels and Japanese eels. AngHV-1-FC induced severe cytopathic effects in the European eel spleen cell line (EES), and numerous

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Miller, Michael J., Pierre Sasal, Robert Schabetsberger, et al. "The South Pacific: a unique geological and oceanographic region of freshwater island-oasis habitats for anguillid eel population interactions." Cybium 48, no. 1 (2024): 5–33. https://doi.org/10.26028/cybium/2023-045.

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Miller, Michael J., Sasal, Pierre, Schabetsberger, Robert, Kuroki, Mari, Acou, Anthony, Chang, Yu-Lin K., Higuchi, Takatoshi, Watanabe, Shun, Aoyama, Jun, Feunteun, Eric (2024): The South Pacific: a unique geological and oceanographic region of freshwater island-oasis habitats for anguillid eel population interactions. Cybium 48 (1): 5-33, DOI: 10.26028/cybium/2023-045, URL: http://dx.doi.org/10.26028/cybium/2023-045

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Fatimah, Fita, Farida Nur Rachmawati, and Eko Setio Wibowo. "LEUKOCYTE DIFFERENTIAL OF ANGUILLID EEL, Anguilla bicolor McClelland, EXPOSED TO VARIED SALINITIES." Scripta Biologica 4, no. 2 (2017): 79. http://dx.doi.org/10.20884/1.sb.2017.4.2.401.

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Jéhannet, P., L. Kruijt, E. L. Damsteegt, et al. "A mechanistic model for studying the initiation of anguillid vitellogenesis by comparing the European eel (Anguilla anguilla) and the shortfinned eel (A. australis)." General and Comparative Endocrinology 279 (August 2019): 129–38. http://dx.doi.org/10.1016/j.ygcen.2019.02.018.

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Miller, Michael J., Eric Feunteun, and Katsumi Tsukamoto. "Did a “perfect storm” of oceanic changes and continental anthropogenic impacts cause northern hemisphere anguillid recruitment reductions?" ICES Journal of Marine Science 73, no. 1 (2015): 43–56. http://dx.doi.org/10.1093/icesjms/fsv063.

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AbstractThe three northern hemisphere anguillid eel species experienced recruitment declines at similar times beginning in the 1970s and 1980s, but the exact causes of the declines have remained unclear. Attention focused on two categories of possible causes that included (i) anthropogenic impacts on eel growth habitats, such as dam construction, degradation and pollution of habitats, introduction of parasites, overfishing and (ii) changes in ocean-atmospheric conditions affecting their marine life-history stages. The cumulative effects of reaching peaks in dam construction, levels of pollutio

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Kaifu, Kenzo, Hikaru Itakura, Yosuke Amano, et al. "Discrimination of wild and cultured Japanese eels based on otolith stable isotope ratios." ICES Journal of Marine Science 75, no. 2 (2017): 719–26. http://dx.doi.org/10.1093/icesjms/fsx173.

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Abstract We successfully discriminated wild and cultured anguillid eels without artificial tagging. For the purpose of population restoration of anguillid eels, stocking has been widely conducted in the European Union (EU) and Japan, although the net benefits of stocking remain unclear. To evaluate the effectiveness of eel stocking for population restoration, the survival, growth, escapement, and reproduction of stocked eels should be tracked. In this study, we explored the potential of using otolith oxygen and carbon stable isotope ratios as a natural tag to discriminate between wild and cult

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van Beurden, Steven J., Derek Gatherer, Karen Kerr, et al. "Anguillid Herpesvirus 1 Transcriptome." Journal of Virology 86, no. 18 (2012): 10150–61. http://dx.doi.org/10.1128/jvi.01271-12.

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We used deep sequencing of poly(A) RNA to characterize the transcriptome of an economically important eel virus, anguillid herpesvirus 1 (AngHV1), at a stage during the lytic life cycle when infectious virus was being produced. In contrast to the transcription of mammalian herpesviruses, the overall level of antisense transcription from the 248,526-bp genome was low, amounting to only 1.5% of transcription in predicted protein-coding regions, and no abundant, nonoverlapping, noncoding RNAs were identified. RNA splicing was found to be more common than had been anticipated previously. Counting

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Abdul Kadir, Siti Raudah, Mohamad Hafiz Farhan Abdul Rasid, Kok Onn Kwong, Li Lian Wong, and Takaomi Arai. "Occurrence and the ecological implication of a tropical anguillid eel Anguilla marmorata from peninsular Malaysia." ZooKeys 695 (September 5, 2017): 103–10. http://dx.doi.org/10.3897/zookeys.695.13298.

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Cornish, I., and T. W. Moon. "Glucose and lactate kinetics in American eel Anguilla rostrata." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 249, no. 1 (1985): R67—R72. http://dx.doi.org/10.1152/ajpregu.1985.249.1.r67.

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Simultaneous infusion of [6-3H]glucose and [U-14C]lactate was used to calculate the turnover rate of glucose, the irreversible replacement rate of lactate, and the rates of the exchange of carbon atoms between glucose and lactate in free-swimming American eels (Anguilla rostrata) fed or food deprived for 6, 15, and 36 (maturing) mo. The mean turnover rate of glucose in fed animals averaged 1.0 mg X min-1 X 100 g-1, while the lactate irreversible replacement rate was approximately 4.0 micrograms X min-1 X 100 g-1. The conversion of 35% of lactate carbon to glucose implied a substantial Cori cyc

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Tomie, J. P. N., D. K. Cairns, R. S. Hobbs, M. Desjardins, G. L. Fletcher, and S. C. Courtenay. "American eel (Anguilla rostrata) substrate selection for daytime refuge and winter thermal sanctuary." Marine and Freshwater Research 68, no. 1 (2017): 95. http://dx.doi.org/10.1071/mf15102.

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We addressed hypotheses that anguillid eels use mud as a substrate refuge only in the absence of substrate cavities, and that the winter distribution of eels in coastal bay and estuarine habitat is limited to waters warmer than the freezing point of fish tissue (~–0.7°C). In the seasonally ice-covered southern Gulf of St Lawrence, Canada, locations of summer fyke and winter spear fisheries indicate that American eels (Anguilla rostrata) are widely distributed in both summer and winter in shallow soft-bottomed bay and estuarine habitat. Captive eels in fresh water preferred mud substrates durin

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Wilson, Jonathan Mark, José Carlos Antunes, Patricío Duro Bouça, and João Coimbra. "Osmoregulatory plasticity of the glass eel of Anguilla anguilla: freshwater entry and changes in branchial ion-transport protein expression." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 3 (2004): 432–42. http://dx.doi.org/10.1139/f04-010.

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The glass-eel stage of the life history of Anguillid eels (Anguilla spp.) makes the important physiological transition from seawater (SW) to freshwater (FW) osmoregulation. Central to successful adaptation to fresh water is the switch from active hypoosmoregulation (ion excretion) to active hyperosmoregulation (ion uptake) to counter passive fluxes imposed by concentration gradients. Anguilla anguilla (L.) glass eels, captured from the lower Minho River estuary and maintained in brackish water (BW; 24), were fully capable of adapting to FW following acute transfer. In a comparison between SW-

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McConville, James, Elena Fringuelli, Derek Evans, and Paul Savage. "First examination of the Lough Neagh European eel (Anguilla anguilla) population for eel virus European, eel virus European X and Anguillid Herpesvirus-1 infection by employing novel molecular techniques." Journal of Fish Diseases 41, no. 12 (2018): 1783–91. http://dx.doi.org/10.1111/jfd.12885.

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Zheng, Zaiyu, Bin Chen, Xiaodong Liu, et al. "Novel Eel Skin Fibroblast Cell Line: Bridging Adherent and Suspension Growth for Aquatic Applications Including Virus Susceptibility." Biology 13, no. 12 (2024): 1068. https://doi.org/10.3390/biology13121068.

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Suspension growth can greatly increase the cell density and yield of cell metabolites. To meet the requirements of aquatic industries, a culture model derived from Anguilla anguilla skin was developed using the explant outgrowth and enzyme-digesting passaging methods. These cells were kept in vitro continuously for over 12 months and subcultured 68 times. This heteroploid cell line, designated as ES, can naturally adapt to adherent and suspension growth reversibly under certain temperatures, serum percentages, and inoculum densities, without the need for any microcarriers or special medium add

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Song, Jun-Young, Keun-Yong Kim, and Ahran Kim. "Highly Sensitive Duplex Quantitative PCR Assay for Simultaneous Detection of Two Japanese Eel Viruses, Anguillid Herpesvirus 1 and Japanese Eel Endothelial Cells-Infecting Virus." Biology 14, no. 3 (2025): 264. https://doi.org/10.3390/biology14030264.

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Japanese eel endothelial cells-infecting virus (JEECV) and Anguillid herpesvirus 1 (AnHV) are major pathogens in farmed eels. JEECV causes eel viral endothelial cell necrosis (VECNE), while AnHV leads to symptoms such as head erythema and gill necrosis. Both viruses cause severe mortality alone or in combination, necessitating rapid and early detection of their presences. In this study, we developed a highly efficient duplex quantitative PCR method (r2 = 0.999) using hydrolysis probes for the rapid and simultaneous detections of AnHV and JEECV. This new diagnostic method demonstrated a 1.7-fol

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Rachmawati, Farida Nur, Untung Susilo, and Frolan Aya. "Comparison of Reproductive Aspects of the Tropical Eel Anguilla bicolor (McClelland 1884) in Freshwater and Estuarine Habitats." ILMU KELAUTAN: Indonesian Journal of Marine Sciences 28, no. 3 (2023): 260–66. http://dx.doi.org/10.14710/ik.ijms.28.3.260-266.

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The tropical anguillid eel, Anguilla bicolor McClelland, experiences significant growth up to the adult size in both freshwater and estuarine ecosystems, encountering salinity gradients that may impact their reproduction. Therefore, this study aimed to investigate the reproductive aspects of A. bicolor collected from Serayu River (freshwater) and Segara Anakan (estuary), Cilacap, Central Java, during July 2020 field surveys. The examined parameters included eye index (EI), fin index (FI), gonadosomatic index (GSI), hepatosomatic index (HSI), and sex ratio of eel specimens in freshwater and est

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Schulz, P., E. Kaczorek, J. Małaczewska, and A. K. Siwicki. "Immunopathogenesis of Herpesviruses: Influence of Anguillid Herpes Virus 1 on Macrophage and Lymphocyte Activity in European eel (Anguilla anguilla)." Journal of Comparative Pathology 154, no. 1 (2016): 97. http://dx.doi.org/10.1016/j.jcpa.2015.10.099.

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Byambaragchaa, Munkhzaya, Sei Hyen Park, Sang-Gwon Kim, et al. "Stable Production of a Recombinant Single-Chain Eel Follicle-Stimulating Hormone Analog in CHO DG44 Cells." International Journal of Molecular Sciences 25, no. 13 (2024): 7282. http://dx.doi.org/10.3390/ijms25137282.

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This study aimed to produce single-chain recombinant Anguillid eel follicle-stimulating hormone (rec-eel FSH) analogs with high activity in Cricetulus griseus ovary DG44 (CHO DG44) cells. We recently reported that an O-linked glycosylated carboxyl-terminal peptide (CTP) of the equine chorionic gonadotropin (eCG) β-subunit contributes to high activity and time-dependent secretion in mammalian cells. We constructed a mutant (FSH-M), in which a linker including the eCG β-subunit CTP region (amino acids 115–149) was inserted between the β-subunit and α-subunit of wild-type single-chain eel FSH (FS

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Freese, Marko, Larissa Yokota Rizzo, Jan-Dag Pohlmann, et al. "Bone resorption and body reorganization during maturation induce maternal transfer of toxic metals in anguillid eels." Proceedings of the National Academy of Sciences 116, no. 23 (2019): 11339–44. http://dx.doi.org/10.1073/pnas.1817738116.

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During their once-in-a-lifetime transoceanic spawning migration, anguillid eels do not feed, instead rely on energy stores to fuel the demands of locomotion and reproduction while they reorganize their bodies by depleting body reserves and building up gonadal tissue. Here we show how the European eel (Anguilla anguilla) breaks down its skeleton to redistribute phosphorus and calcium from hard to soft tissues during its sexual development. Using multiple analytical and imaging techniques, we characterize the spatial and temporal degradation of the skeletal framework from initial to final gonada

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Jacoby, David M. P., John M. Casselman, Vicki Crook, et al. "Synergistic patterns of threat and the challenges facing global anguillid eel conservation." Global Ecology and Conservation 4 (July 2015): 321–33. http://dx.doi.org/10.1016/j.gecco.2015.07.009.

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