Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 

Saved Queries

Sign in to use this feature.

Search Filter Reset All

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline
Add Subjects Reset
Select Subjects

Journals

remove_circle_outline
remove_circle_outline
Add Journals Reset
Select Journals

Article Types

remove_circle_outline
remove_circle_outline
Add Article Types Reset
Select Article Types

Countries / Regions

remove_circle_outline
remove_circle_outline
remove_circle_outline
Add Countries / Regions Reset
Select Countries / Regions
Update Search
share announcement

Search Results (5)

Search Parameters:
Keywords = deep-sea eel

Order results
Result details
Results per page
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
8 pages, 755 KiB  
Brief Report
Complete Mitogenomes of Deep-Sea Eels Histiobranchus bathybius and Simenchelys parasitica and a New Record of H. bathybius from the East Mariana Basin, Western Pacific Ocean
by Jeonghoon Han, Han-Jun Kim, Byung-Jik Kim, Ji-Yeon Hyeon, Choong Hwan Noh and Young-Ung Choi
J. Mar. Sci. Eng. 2024, 12(8), 1427; https://doi.org/10.3390/jmse12081427 - 18 Aug 2024
Viewed by 1525
Abstract
In this study, using Illumina sequencing, we sequenced first the complete mitochondrial genome (mitogenome) of two deep-sea eels, Histiobranchus bathybius and Simenchelys parasitica, collected from the East Mariana Basin in the Western Pacific Ocean. The complete length of the H. bathybius and [...] Read more.
In this study, using Illumina sequencing, we sequenced first the complete mitochondrial genome (mitogenome) of two deep-sea eels, Histiobranchus bathybius and Simenchelys parasitica, collected from the East Mariana Basin in the Western Pacific Ocean. The complete length of the H. bathybius and S. parasitica mitogenomes were 16,696 and 16,687 bp, respectively, each containing 37 genes (13 protein-coding genes, 22 tRNA genes, and 2 ribosomal RNA genes). To enhance the accuracy of the identification of H. bathybius and S. parasitica, we performed a phylogenetic analysis of multiple deep-sea eels based on the mitochondrial DNA gene (cytochrome c oxidase subunit I [COI]) using the maximum likelihood method. Our phylogenetic tree analysis confirmed that the specimens collected in this study are congeneric species of H. bathybius and S. parasitica reported in previous studies. Based on these results, we report the first complete mitogenomes of H. bathybius and S. parasitica and a new record for the two species in the East Mariana Basin. Full article
(This article belongs to the Special Issue Abundance and Diversity of the Sea Fish Community)
►▼ Show Figures

Figure 1

9 pages, 1104 KiB  
Brief Report
Complete Mitochondrial DNA Genomes of Deep-Sea Eels Synaphobranchus brevidorsalis and S. affinis and New Record of S. brevidorsalis from the East Mariana Basin
by Jeonghoon Han, Han-Jun Kim, Kyun-Woo Lee and Young-Ung Choi
J. Mar. Sci. Eng. 2023, 11(4), 860; https://doi.org/10.3390/jmse11040860 - 19 Apr 2023
Cited by 1 | Viewed by 1921
Abstract
In this study, we document the first recorded range extension of the genus Synaphobranchus from the East Mariana Basin in the Western Pacific Ocean. We sequenced the complete mitochondrial (mt) genome of two deep-sea eels (Synaphobranchus brevidorsalis and S. affinis) collected [...] Read more.
In this study, we document the first recorded range extension of the genus Synaphobranchus from the East Mariana Basin in the Western Pacific Ocean. We sequenced the complete mitochondrial (mt) genome of two deep-sea eels (Synaphobranchus brevidorsalis and S. affinis) collected in the East Mariana Basin in the Western Pacific Ocean. The complete mt genomes of S. brevidorsalis and S. affinis were 16,686 bp and 16,677 bp in length, respectively, and consisted of 13 protein-coding genes, 22 tRNA genes, and two rRNA genes. Molecular phylogenetic analysis of the two deep-sea eel species was performed, based on the mt cytochrome c oxidase subunit I (COI) gene using the maximum likelihood method. The molecular phylogenetic tree demonstrated that S. brevidorsalis and S. affinis were congeneric species of S. brevidorsalis and S. affinis reported in previous studies with bootstrap values of 100% and 100%, respectively. This is the first report on the complete mt genomes of S. brevidorsalis and S. affinis collected in the East Mariana Basin in the Western Pacific Ocean. Overall, our study highlights the potential of molecular approaches in identifying species diversity and distribution in the Western Pacific Ocean. Full article
(This article belongs to the Special Issue Deep-Sea Fish and Fisheries)
►▼ Show Figures

Figure 1

9 pages, 2619 KiB  
Article
New Record of the Grey Cutthroat, Synaphobranchus affinis (Anguilliformes: Synaphobranchidae) from the East Mariana Basin, Western Pacific Ocean
by Jeonghoon Han, Han-Jun Kim, Byung-Jik Kim, Kiseong Hyeong, Choonghwan Noh and Young-Ung Choi
J. Mar. Sci. Eng. 2022, 10(11), 1567; https://doi.org/10.3390/jmse10111567 - 22 Oct 2022
Cited by 2 | Viewed by 2113
Abstract
Two deep-sea eels collected from the East Mariana Basin in the western Pacific Ocean are described in this study. Based on their morphological features, two eel specimens were assumed to belong to the Gray cutthroat eel family, Synaphobranchidae. Mitochondrial DNA (mtDNA) genes have [...] Read more.
Two deep-sea eels collected from the East Mariana Basin in the western Pacific Ocean are described in this study. Based on their morphological features, two eel specimens were assumed to belong to the Gray cutthroat eel family, Synaphobranchidae. Mitochondrial DNA (mtDNA) genes have been widely used as genetic markers to identify fish species. To accurately identify the species of the two eel specimens, we sequenced the mitochondrial cytochrome c oxidase subunit I (COI) and 16S ribosomal RNA (16S rRNA) genes from the two eel specimens. The sequences from the specimens were 100% identical. The molecular phylogenetic tree confirmed that the two eel specimens were closely related to Synaphobranchus affinis with a bootstrap value of 100%. This is the first study to report new records of S. affinis from the East Mariana Basin in the western Pacific Ocean. Full article
(This article belongs to the Special Issue Deep-Sea Fish and Fisheries)
►▼ Show Figures

Figure 1

18 pages, 7040 KiB  
Article
A Very Large Spawning Aggregation of a Deep-Sea Eel: Magnitude and Status
by Alan Williams, Deborah Osterhage, Franziska Althaus, Timothy Ryan, Mark Green and John Pogonoski
J. Mar. Sci. Eng. 2021, 9(7), 723; https://doi.org/10.3390/jmse9070723 - 30 Jun 2021
Cited by 5 | Viewed by 3486
Abstract
Multiple lines of evidence substantiate the existence of a very large aggregation of the basketwork eel, Diastobranchus capensis, on the small (3 km2) Patience Seamount off southeast Australia. The aggregation appears to be present year-round, but largest in the austral [...] Read more.
Multiple lines of evidence substantiate the existence of a very large aggregation of the basketwork eel, Diastobranchus capensis, on the small (3 km2) Patience Seamount off southeast Australia. The aggregation appears to be present year-round, but largest in the austral autumn when composed of spawning eels. Twenty eels caught in April 2015 (14 female, 6 male) were all in advanced stages of spawning condition. The eel’s abundance in the aggregation was very high as measured at seamount, local and regional scales. Hydroacoustic measurement of the spawning aggregation’s dimensions (~100 × 1000 m) and conservative counts of 100 s of eels along camera transects of ~1000–2000 m length indicate 10,000 s individual eels may have been present. The absence of other known spawning locations indicates the Patience Seamount is a regional-scale spatial anchor for spawning. The aggregation was protected in a marine park in 2007 following a decades-long impact from bottom trawling, indicating that the population can be expected to stabilise and recover. Monitoring the aggregation’s status, and validating seasonal spawning, provide important opportunities to examine conservation-led recovery in the deep sea as part of Australia’s new national strategy of Monitoring, Evaluation, Reporting and Improvement (MERI) for conservation values within marine parks. Full article
(This article belongs to the Special Issue Deepwater Fishes)
►▼ Show Figures

Figure 1

24 pages, 21726 KiB  
Article
Characteristics and Dynamics of a Large Sub-Tidal Sand Wave Field—Habitat for Pacific Sand Lance (Ammodytes personatus), Salish Sea, Washington, USA
by H. Gary Greene, David A. Cacchione and Monty A. Hampton
Geosciences 2017, 7(4), 107; https://doi.org/10.3390/geosciences7040107 - 23 Oct 2017
Cited by 14 | Viewed by 22501
Abstract
Deep-water sand wave fields in the San Juan Archipelago of the Salish Sea and Pacific Northwest Washington, USA, have been found to harbor Pacific sand lance (PSL, Ammodytes personatus), a critical forage fish of the region. Little is known of the dynamics [...] Read more.
Deep-water sand wave fields in the San Juan Archipelago of the Salish Sea and Pacific Northwest Washington, USA, have been found to harbor Pacific sand lance (PSL, Ammodytes personatus), a critical forage fish of the region. Little is known of the dynamics of these sand waves and the stability of the PSL sub-tidal habitats. Therefore, we have undertaken an initial investigation to determine the dynamic conditions of a well-known PSL habitat in the San Juan Channel within the Archipelago using bottom sediment sampling, an acoustical doppler current profiling (ADCP) system, and multi-beam echo sounder (MBES) bathymetry. Our study indicates that the San Juan Channel sand wave field maintained its shape and bedforms geometry throughout the years it has been studied. Based on bed phase diagrams for channelized bedforms, the sand waves appear to be in a dynamic equilibrium condition. Sea level rise may change the current regime within the Archipelago and may alter some of the deep-water or sub-tidal PSL habitats mapped there. Our findings have global significance in that these dynamic bedforms that harbor PSL and sand-eels elsewhere along the west coast of North America and in the North Sea may also be in a marginally dynamic equilibrium condition and may be prone to alteration by sea level rise, indicating an urgency in locating and investigating these habitats in order to sustain the forage fish. Full article
(This article belongs to the Special Issue Marine Geomorphometry)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying article 1-50 on page 1 of 1.
Back to TopTop