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The Importance of Fish Phenotype in Aquaculture, Fisheries and Conservation
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College of Science, Shantou University, Shantou, China
Fisheries College, Zhejiang Ocean University, Zhoushan, China
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The Importance of Fish Phenotype in Aquaculture, Fisheries and Conservation

Abstract submission deadline
30 November 2024
Manuscript submission deadline
31 January 2025
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1752

Topic Information

Dear Colleagues,

Aquatic ecosystems are now facing diverse pressures under the background of climate change and human activities, which bring severe uncertainty to aquaculture sustainability, fisheries management, and biodiversity conservation. It is of vital importance to comprehensively elucidate the responses of aquatic organisms to these global change factors. One of the most critical characteristics of animals, when they cope with changes, is altering their behavioral tactics and physiological processes; however, there seems to be an underestimate of these phenotypic reactions in the contexts of aquaculture, fisheries, and conservation. How to integrate fish phenotype into adaptive management of aquatic ecosystems is one of the crucial topics that has received increasing attention from scientists, decision-makers, and the public in recent years. This Topic plans to give an overview of recent advances in the field of fish phenotype-based adaptive management of aquatic ecosystems. The phenotype involves behaviors and physiology. The important roles of phenotype may be reflected by (a) applying fish behaviors to evaluate welfare status, (b) developing practical methods to decrease undesired behaviors (e.g., cannibalism) in the aquaculture context and to improve fish ecological fitness in stock enhancement and conservation projects, and (c) elucidating the dynamics and mechanisms of fish responses to ecological changes. This Topic welcomes all types of articles.

Dr. Zonghang Zhang
Prof. Dr. Xiumei Zhang
Topic Editors

Keywords

  • aquaculture
  • fisheries
  • conservation
  • biodiversity
  • phenotype
  • behavior
  • physiology
  • fish welfare
  • sustainability

Participating Journals

Journal Name Impact Factor CiteScore Launched Year First Decision (median) APC
Animals
animals 		2.7 4.9 2011 16.1 Days CHF 2400 Submit
Aquaculture Journal
aquacj 		- - 2021 25.8 Days CHF 1000 Submit
Biology
biology 		3.6 5.7 2012 16.1 Days CHF 2700 Submit
Fishes
fishes 		2.1 1.9 2016 18.2 Days CHF 2600 Submit

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Published Papers (2 papers)

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16 pages, 708 KiB  
Article
Mate Choice in Western Mosquitofish (Gambusia affinis) in Response to Virtual Mates: A Method for the Investigation of Fish Mate Choice Using Maya 3D Simulation Technology
by Bowen Feng, Liming Chen, Liangmin Huang, Jun Li and Kai Liu
Animals 2024, 14(23), 3369; https://doi.org/10.3390/ani14233369 - 22 Nov 2024
Abstract
Visual signals are crucial for animals to obtain information about their environment, and they play a significant role in mate choice. However, individual variability and factors such as movement patterns can hinder research flexibility. A key challenge in this field is the accurate [...] Read more.
Visual signals are crucial for animals to obtain information about their environment, and they play a significant role in mate choice. However, individual variability and factors such as movement patterns can hinder research flexibility. A key challenge in this field is the accurate simulation of specific movements and behaviors. In this study, we investigated the western mosquitofish (Gambusia affinis) by creating 3D simulation animations using the Maya 2018 software. Meanwhile, we validated the effectiveness of this animation through dichotomous association preference tests. The results showed that our subjects could successfully identify 3D simulated mates, and both males and females demonstrated pronounced preferences for larger simulated animations. Moreover, our findings revealed that this species exhibited a notably stronger preference for 3D simulations compared to 2D animations. These findings suggest that 3D simulation technology holds significant potential for the investigation of fish mate choice, offering an efficient, precise, standardized, and easily manageable non-invasive method for future research in fish behavior. Full article
(This article belongs to the Topic The Importance of Fish Phenotype in Aquaculture, Fisheries and Conservation)
16 pages, 4867 KiB  
Article
Effects of Stocking Density on the Survival, Growth, and Stress Levels of the Juvenile Lined Seahorse (Hippocampus erectus) in Recirculating Aquaculture Systems
by Tingting Lin, Siping Li, Dong Zhang, Xin Liu and Yuanhao Ren
Biology 2024, 13(10), 807; https://doi.org/10.3390/biology13100807 - 10 Oct 2024
Viewed by 691
Abstract
Seahorses are increasingly regarded as a promising farming object suitable for recirculating aquaculture systems (RASs) due to their high economic value. However, reports on the large-scale farming of seahorses in RASs are rare, and some key parameters, such as stocking densities, are still [...] Read more.
Seahorses are increasingly regarded as a promising farming object suitable for recirculating aquaculture systems (RASs) due to their high economic value. However, reports on the large-scale farming of seahorses in RASs are rare, and some key parameters, such as stocking densities, are still unclear. In the present study, we employed the lined seahorse (Hippocampus erectus), for which large-scale farming has been achieved, to determine the suitable stocking density for three different-sized juveniles in RASs. The three different-sized juveniles had body heights of 4.0, 7.0, and 9.0 cm, and their test density gradients were 1.0, 0.8, 0.6, and 0.4 inds/L; 0.6, 0.5, 0.4, and 0.3 inds/L; and 0.4, 0.3, 0.2, and 0.1 inds/L, respectively. The juveniles were cultivated for one month, and then their survival, growth, and plasma cortisol and brain serotonin contents (two stress-related indicators) were analyzed. The results show that, regardless of the size of the juveniles, a high density can inhibit growth and trigger stress responses. In addition, for small- (4.0 cm) and medium-sized (7.0 cm) juveniles, a high density can also exacerbate size heterogeneity and cause death. Taking into account the welfare and yield of farmed seahorses, the present study suggests that the suitable stocking densities for 4.0, 7.0, and 9.0 cm juveniles in RASs are 0.6, 0.4, and 0.2 inds/L, respectively. Full article
(This article belongs to the Topic The Importance of Fish Phenotype in Aquaculture, Fisheries and Conservation)
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