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Animals
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Echinoderm Aquaculture and Fisheries
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Echinoderm Aquaculture and Fisheries

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Aquatic Animals".

Deadline for manuscript submissions: 31 October 2024 | Viewed by 2152

Special Issue Editors

Dr. Chong Zhao

E-Mail Website
Guest Editor
Key Laboratory of Mariculture and Stock Enhancement in North China′s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian 116023, China
Interests: behaviors and aquaculture of sea cucumbers and sea urchins
Dr. Satomi Takagi

E-Mail Website
Guest Editor
Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Kushiro 085-0802, Japan
Interests: sea urchin nutrition; gonad quality; aquaculture

Special Issue Information

Dear Colleagues,

Echinoderms, a diverse group of marine invertebrates, have been recognized for their ecological and economic importance, with several species being used in aquaculture and fisheries. The aim of this Special Issue is to provide a comprehensive overview of the current state of research on echinoderm aquaculture and fisheries, highlighting key advancements and challenges in this field.

This Special Issue comprises a series of original research articles, reviews, and perspectives that cover a broad range of topics, including, but not limited to, the following:

  • The biology and ecology of echinoderms, with a focus on their behaviors, reproduction, growth, development, and genetics, as well as their interactions with the environment and other organisms.
  • Advances in echinoderm aquaculture, such as the development of new culture techniques, the optimization of feeding regimes, and the use of probiotics and other supplements to enhance growth and survival.
  • The management and sustainability of echinoderm fisheries, including the assessment of stocks, the development of fisheries regulations and policies, and the use of ecosystem-based approaches to improve the resilience of these fisheries.
  • The potential applications of echinoderm products in various fields, such as biotechnology, pharmacology, and cosmeceuticals.

We invite original research papers that address the diverse range of topics within echinoderm aquaculture and fisheries.

Dr. Chong Zhao
Dr. Satomi Takagi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • echinoderms
  • aquaculture
  • fisheries
  • reproduction
  • growth
  • development
  • environment
  • culture techniques
  • feeding regimes

Published Papers (2 papers)

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Research

17 pages, 2521 KiB  
Article
MethylRAD Sequencing Technology Reveals DNA Methylation Characteristics of Apostichopus japonicus of Different Ages
by Xinyu Yang, Lingshu Han, Qi Ye, Hao Wang, Jinyuan Zhang, Wenpei Wang, Haoran Xiao, Yongjie Wang, Luo Wang and Jun Ding
Animals 2023, 13(22), 3530; https://doi.org/10.3390/ani13223530 - 15 Nov 2023
Viewed by 745
Abstract
The A. japonicus industry has expanded significantly, but no research has focused on determining the age of A. japonicus during farming. Correctly estimating the age of A. japonicus can provide a decision-making basis for the breeding process and data for the protection of [...] Read more.
The A. japonicus industry has expanded significantly, but no research has focused on determining the age of A. japonicus during farming. Correctly estimating the age of A. japonicus can provide a decision-making basis for the breeding process and data for the protection of A. japonicus aquatic germplasm resources. DNA methylation levels in the body wall of Apostichopus japonicus at 4 months, 1 year, 2 years, and 3 years old were determined using MethylRAD-Seq, and differentially methylated genes were screened. A total of 441 and 966 differentially methylated genes were detected at the CCGG and CCWGG sites, respectively. Aspartate aminotransferase, succinate semialdehyde dehydrogenase, isocitrate dehydrogenase, the histone H2AX, heat shock protein Hsp90, aminopeptidase N, cell division cycle CDC6, Ras GTPase activating protein (RasGAP), slit guidance ligand slit1, integrin-linked kinase ILK, mechanistic target of rapamycin kinase Mtor, protein kinase A Pka, and autophagy-related 3 atg3 genes may play key roles in the growth and aging process of A. japonicus. This study provides valuable information regarding age-related genes for future research, and these candidate genes can be used to create an “epigenetic clock”. Full article
(This article belongs to the Special Issue Echinoderm Aquaculture and Fisheries)
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10 pages, 1135 KiB  
Article
Swing Regulates Movement Direction in the Sea Cucumber Apostichopus japonicus in the Presence of Food Cue: New Insights into Movement Patterns
by Zihe Zhao, Jiangnan Sun, Yushi Yu, Peng Ding, Jun Ding, Yaqing Chang and Chong Zhao
Animals 2023, 13(21), 3388; https://doi.org/10.3390/ani13213388 - 01 Nov 2023
Viewed by 853
Abstract
Regulating movement direction is essential in the locomotion of animals. Sea cucumbers, as eyeless animals, do not have eyes for the perception of the surrounding environment and food. They have a unique way of swinging their bodies when a food cue is detected, [...] Read more.
Regulating movement direction is essential in the locomotion of animals. Sea cucumbers, as eyeless animals, do not have eyes for the perception of the surrounding environment and food. They have a unique way of swinging their bodies when a food cue is detected, although they lack an important perceptual tool. The present study investigated the movement patterns of the sea cucumber Apostichopus japonicus in the absence of a food cue (experiment 1) and in the presence of a food cue (experiment 2). In experiment 1, we found that the movement of sea cucumbers was close to a linear motion (motion linearity 0.91 ± 0.01). In experiment 2, sea cucumbers most frequently adjusted the movement direction when being exposed to food (84 times/216 min), indicating that sea cucumbers adjusted the direction of movement in the swing state but not the motion state. In experiment 2, we found significantly lower time in the immobility state in the sea cucumbers in the presence of food cues compared to that of those without being exposed to food cues, and the frequency of the motion state in response to food cues was 1.6 times than that of those without food cue. This suggests that food cues cause the change in motion state in sea cucumbers. Swing frequency was 1.7 times higher in sea cucumbers exposed to food cues than that of those not exposed to food cues. Further, sea cucumbers in the presence of food showed significantly better performances in swing angle and swing velocity compared to those not exposed to food cues. This suggests that food cue significantly affects the swing state of sea cucumbers. Notably, the present study described the movement patterns of sea cucumbers when they detected food cues, and other factors (such as the detection of predators) need to be further studied. The present study provides new insights into the regulation of movement direction in eyeless organisms. Full article
(This article belongs to the Special Issue Echinoderm Aquaculture and Fisheries)
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