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Animals
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Global Fisheries Resources, Fisheries, and Carbon-Sink Fisheries
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Global Fisheries Resources, Fisheries, and Carbon-Sink Fisheries

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

Deadline for manuscript submissions: 15 December 2025 | Viewed by 1788

Special Issue Editors

Dr. Teruhisa Komatsu

E-Mail Website
Guest Editor
Japan Fisheries Resource Conservation Association, Shintomicho Building, 3-10-9 Irifune, Chuo-ku, Tokyo 104-0042, Japan
Interests: climate change; sea-weed and seagrass habitats; drifting seaweed; fisheries resource; fisheries oceanography; coastal habitat mapping; remote sensing
Special Issues, Collections and Topics in MDPI journals
Dr. Min Xu

E-Mail Website
Guest Editor
East China Sea Fisheries Research Institute, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Sciences, Shanghai 200090, China
Interests: climate changes; oyster reef; artificial reef; sea-weed bed; cephalopod; fish larvae and eggs; sea ranch
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Zengqiang Yin

E-Mail Website
Guest Editor
College of Marine Science and Environment, Dalian Ocean University, Dalian 116023, China
Interests: fisheries resource assessment; fisheries resource biology; fisheries oceanography
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Aquatic economic animals and fisheries are important to support the life of local fishermen and fisheries communities, also playing key roles in stabilizing and balancing global aquatic ecosystems. However, global fisheries resources and fisheries (including Japan and China in Northwest Pacific) face challenges from overfishing, habitat loss, and climate change. To identify the impacts of these factors on global fisheries resources and fisheries, mitigating the negative impacts and adding fisheries management suggestions, this Special Issue calls for the papers from around the globe, including, but not limited to, the following: surveys of aquatic living organisms’ habitats and the construction of artificial habitats (including artificial reefs, oyster reefs, seagrass and seaweed beds, floating seaweed rafts, sea ranches, and so on); the impacts from overfishing and climate change on species, community, ecosystems, and society; and the mechanisms and technologies of carbon-sink fisheries. At the same time, we also welcome papers on the topics of fishery resource biology, economic aquatic animal behavior, stock enhancement by releasing, environmental DNA, and fisheries management in addressing the above issues.

You may choose our Joint Special Issue in Biology. 

Dr. Teruhisa Komatsu
Dr. Min Xu
Prof. Dr. Zengqiang Yin
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

  • fisheries
  • habitats
  • overfishing
  • fishery resource biology
  • economic aquatic animal behavior
  • stock enhancement by releasing
  • environmental DNA
  • fisheries management
  • climate change
  • ecosystems
  • ecological models
  • carbon-sink
  • aquatic ecological ranches
  • fisheries products

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (4 papers)

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Research

16 pages, 2243 KiB  
Article
Behavioral Characteristics of Largefin Longbarbel Catfish Hemibagrus macropterus: Effects of Sex and Body Size on Aggression and Shelter Selection
by Xiaoli Li, Yongjiu Zhu, Siqi Chen, Tingbing Zhu, Xingbing Wu and Xuemei Li
Animals 2025, 15(9), 1192; https://doi.org/10.3390/ani15091192 - 22 Apr 2025
Viewed by 261
Abstract
This study investigated the aggressive behavior of Hemibagrus macropterus (Bleeker) by examining the effects of size combinations (large vs. large (LL), large vs. small (LS), small vs. small (SS)), sex combinations (male vs. male (MM), male vs. female (FM), female vs. female (FF)), [...] Read more.
This study investigated the aggressive behavior of Hemibagrus macropterus (Bleeker) by examining the effects of size combinations (large vs. large (LL), large vs. small (LS), small vs. small (SS)), sex combinations (male vs. male (MM), male vs. female (FM), female vs. female (FF)), and shelter availability (tiles, pebbles, grass) under varying group densities (1, 3, and 6 fish). The results revealed that H. macropterus exhibited nocturnal behavior, engaging in exploration, territorial defense, and aggressive interactions such as chasing and biting, with significantly higher aggression at night. A social hierarchy distinguishing between dominant and subordinate individuals emerged. Larger fish displayed higher aggression frequencies compared to LS and SS groups, though the presence of shelters reduced aggression, particularly in environments with ample shelters. Females exhibited stronger aggressive tendencies, with FF and FM groups showing higher aggression than MM groups. Shelter preference experiments indicated a preference for tile and pebble caves, with no cohabitation in these shelters, while aquatic plant caves allowed cohabitation. Aggression was significantly higher in competitive (6 fish) versus non-competitive (3 fish) groups. These findings suggest that nocturnal feeding, sufficient shelters, and size-segregated rearing can mitigate aggression and improve cultivation efficiency in H. macropterus. Full article
(This article belongs to the Special Issue Global Fisheries Resources, Fisheries, and Carbon-Sink Fisheries)
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17 pages, 2297 KiB  
Article
Spatiotemporal Dynamics of Fish Density in a Deep-Water Reservoir: Hydroacoustic Assessment of Aggregation Patterns and Key Drivers
by Zihao Meng, Feifei Hu, Miao Xiang, Xuejun Fu and Xuemei Li
Animals 2025, 15(7), 1068; https://doi.org/10.3390/ani15071068 - 7 Apr 2025
Viewed by 286
Abstract
Understanding spatiotemporal patterns of fish density and their environmental drivers is critical for managing river–lake ecosystems, yet dynamic interactions in heterogeneous habitats remain poorly quantified. This study combined hydroacoustic surveys, spatial autocorrelation analysis (Moran’s I), and generalized additive models (GAMs) to investigate seasonal [...] Read more.
Understanding spatiotemporal patterns of fish density and their environmental drivers is critical for managing river–lake ecosystems, yet dynamic interactions in heterogeneous habitats remain poorly quantified. This study combined hydroacoustic surveys, spatial autocorrelation analysis (Moran’s I), and generalized additive models (GAMs) to investigate seasonal and spatial fish distribution, aggregation characteristics, and regulatory mechanisms in China’s Zhelin Reservoir. The results reveal pronounced seasonal fluctuations, with summer fish density peaking at 13.70 ± 0.91 ind./1000 m3 and declining to 1.95 ± 0.13 ind./1000 m3 in winter. Spatial heterogeneity was evident, with the Xiuhe region sustaining the highest density (15.69 ± 1.09 ind./1000 m3) and persistent hotspots in upstream bays. Transient high-density clusters (90–99% confidence) near the Zhelin Dam during summer suggested thermal or hydrodynamic disturbances. GAM analysis (R2adj = 0.712, 78.5% deviance explained) identified seasonal transitions (12.26% variance), water depth (16.54%), conductivity (13.75%), and dissolved oxygen (13.29%) as dominant drivers, with nonlinear responses to depth and bimodal patterns for conductivity/oxygen. These findings demonstrate that hydrological seasonality and habitat heterogeneity jointly govern fish aggregation, underscoring the ecological priority of Xiuhe and upstream bays as core habitats. This study provides a mechanistic framework for guiding reservoir management, including targeted conservation, dam operation adjustments to mitigate hydrodynamic impacts, and integrated strategies for balancing hydrological and ecological needs in similar ecosystems. Full article
(This article belongs to the Special Issue Global Fisheries Resources, Fisheries, and Carbon-Sink Fisheries)
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14 pages, 2106 KiB  
Article
Seasonal Spatial Distribution Patterns of Abralia multihamata in the East China Sea Region: Predictions Under Various Climate Scenarios
by Min Xu, Shuhao Liu, Chunhui Yang and Linlin Yang
Animals 2025, 15(7), 903; https://doi.org/10.3390/ani15070903 - 21 Mar 2025
Cited by 1 | Viewed by 282
Abstract
The enoploteuthid squid species Abralia multihamata plays an important role in the epi- and mesopelagic food web. However, little is known about its seasonal and spatial distribution, life history traits, and environmental threats that may affect it. In this study, we used independent [...] Read more.
The enoploteuthid squid species Abralia multihamata plays an important role in the epi- and mesopelagic food web. However, little is known about its seasonal and spatial distribution, life history traits, and environmental threats that may affect it. In this study, we used independent scientific bottom trawling surveys conducted in the southern Yellow and East China Seas during 2018–2019 to identify the seasonal spatial distribution characteristics of biomass, number, and size of this species as well as the relationships among these features and measured environmental factors. We also predicted the habitat distribution variations of the species under different climate scenarios (the present, SSP1–2.6, SSP2–4.5, SSP3–7.0, and SSP5–8.5) and seasons. The results revealed a continuously increasing individual size from the southern Yellow Sea to the East China Sea in spring, summer, and autumn, which suggests the possibility of growth differences in different water temperature conditions. The seasonal order of regional mean biomass and number was autumn > spring > summer and winter in the study area, and, for size, it was spring > summer and autumn > winter. This result shows that the majorities of recruitment and breeding groups occurred in autumn and spring, respectively. In addition, our results showed that the most beneficial case in terms of average habitat area was SSP3–7.0 in 2050, and the most loss occurred under SSP1–2.6 and SSP5–8.5 in 2100. Few benefits were predicted for the other cases under the various climate scenarios. This study provides a new understanding of the distribution and life history of A. multihamata in the East China Sea region. Full article
(This article belongs to the Special Issue Global Fisheries Resources, Fisheries, and Carbon-Sink Fisheries)
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16 pages, 3039 KiB  
Article
Bacterial Community Composition and Its Relationship with Environmental Factors in the Artificial Reef Area for Marine Ranching in Changhai County
by Jiamin Yan, Xu Wei, Liwei Si, Zheng Zhang, Jingsi Zhao, Liyu Deng, Tao Tian, Qingxia Li, Zengqiang Yin and Zhongxin Wu
Animals 2025, 15(5), 639; https://doi.org/10.3390/ani15050639 - 22 Feb 2025
Viewed by 379
Abstract
In this study, samples were collected from different types of artificial fish reefs and prevention and control areas in the sea areas of the northern part of Da Changshan Island and the northeastern part of Xiao Changshan Island in the North Yellow Sea. [...] Read more.
In this study, samples were collected from different types of artificial fish reefs and prevention and control areas in the sea areas of the northern part of Da Changshan Island and the northeastern part of Xiao Changshan Island in the North Yellow Sea. The purpose is to compare the differences in the bacterial communities among different regions, determine the impacts of environmental factors on the bacterial communities, and evaluate the ecological effects of artificial fish reefs on the marine bacterial communities. We obtained a total of 2,128,186 effective sequences and 4321 bacterial operational taxonomic units (OTUs), which were classified into 14 phyla and 76 genera. Proteobacteria were the most abundant phylum across the 32 samples, followed by Bacteroidetes. We found that all samples from the deep-sea control area exhibited the highest bacterial richness. In addition, all samples from the shallow-water concrete reef exhibited high community richness. The distribution of bacterial communities showed differences among different regions. In two specific sea areas, the bacteria in the sediment samples exhibited particularly remarkable characteristics of high diversity. Importantly, environmental factors significantly influence bacterial communities. In seawater samples, salinity (Sal) and dissolved oxygen (DO) were the primary factors affecting bacterial communities. Furthermore, grain size (GS) emerged as the most critical physicochemical factor influencing bacterial communities in sediment. This study compared the characteristics of bacterial communities in different types of artificial reefs and control areas in two marine ranches and revealed the main environmental factors affecting the bacterial communities. This is of great significance for protecting biodiversity and evaluating the ecological effects of artificial reef placement. Full article
(This article belongs to the Special Issue Global Fisheries Resources, Fisheries, and Carbon-Sink Fisheries)
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