Fisheries

Article Fisheries

Distribution and spatiotemporal development of organised lymphoid tissues in the chicken intestinal tract

Safieh Zeinali, Kate Sutton, Lonneke Vervelde

Summary: Chickens have a unique immune structure characterized by the absence of draining lymph nodes and the presence of well-developed mucosa-associated lymphoid tissue. The structure and development of chicken lymphoid tissues in the intestine, particularly Peyer's patches, have been poorly studied. However, the use of CSF1R-eGFP reporter transgenic chickens has allowed for the visualization and investigation of the development and distribution of these tissues. This research provides insights that could benefit mucosal vaccination strategies and the development of targeted vaccine delivery systems.

DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY (2024)

Article Fisheries

Mechanisms of type I interferon production by chicken TLR21

Rodrigo Guabiraba, Damaris Ribeiro Rodrigues, Paul T. Manna, Melanie Chollot, Vincent Saint-Martin, Sascha Trapp, Marisa Oliveira, Clare E. Bryant, Brian J. Ferguson

Summary: The innate immune response relies on the ability of host cells to detect and respond to microbial nucleic acids. Toll-like receptors (TLRs) play a crucial role in this process by distinguishing self from non-self. This study focused on TLR21, an avian TLR that recognizes bacterial DNA motifs. The findings suggest that avian TLR21 shares similar activation mechanisms to mammalian TLR9, highlighting the conservation of nucleic acid sensing mechanisms across species.

DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY (2024)

Article Fisheries

Identification of an essential role against shrimp pathogens of prophenoloxidase activating enzyme 1 (PPAE1) from Fenneropenaeus merguiensis hemocytes

Ratiporn Thongsoi, Siriluk Maskaew, Panumas Puechpon, Benjaporn Noppradit, Napassawan Inaek, Prapaporn Utarabhand, Phanthipha Runsaeng

Summary: In this study, a PPAE gene called FmPPAE1 was cloned and analyzed in banana shrimp. FmPPAE1 plays a vital role in regulating the proPO system, exhibits antibacterial properties, and contributes to the suppression of bacterial proliferation.

DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY (2024)

Article Fisheries

Genomics goes deeper in fisheries science: The case of the blackspot seabream (Pagellus bogaraveo) in the northeast Atlantic

Regina L. Cunha, Joana I. Robalo, Sara M. Francisco, Ines Farias, Rita Castilho, Ivone Figueiredo

Summary: Recent advances in genomics have greatly contributed to the assessment of fish stocks by providing precise identification of genetic boundaries. This study used a genotyping-by-sequencing approach to reveal the existence of an additional genetic cluster of blackspot seabream in the northeast Atlantic, which was not previously identified. Factors such as ocean circulation patterns and local upwelling may play a role in the genetic differentiation observed in this study.

FISHERIES RESEARCH (2024)

Article Fisheries

Role of material properties in acoustical target strength: Insights from two species lacking a swimbladder

A. Ladino, I. Perez-Arjona, V. Espinosa, M. Chillaron, V. Vidal, L. M. Godinho, G. Moreno, G. Boyra

Summary: This study examines the acoustic properties of skipjack tuna and Atlantic mackerel, both bladderless pelagic fish species, and explains the significant differences observed. The research shows that the differences in material properties of their tissues predict a more than 10 dB greater reduced target strength in skipjack compared to mackerel at certain frequencies.

FISHERIES RESEARCH (2024)

Article Fisheries

The expression, function, and network regulation of circDNAJB6 in chicken macrophages under lipopolysaccharide (LPS) stimulation

Jishuang Tan, Paizelaiti Sahaer, Huan Li, Wei Han, Hongyan Sun

Summary: Circular RNAs (circRNA) are involved in gene expression and affect cellular processes such as transcription, splicing, and translation by interacting with microRNA and RNA binding proteins. A study identified circDNAJB6 as a circular RNA abundant in chicken macrophages after bacterial infection, and found that circDNAJB6 exacerbates cellular injury and interacts with multiple miRNAs and target genes, potentially impacting autophagy and MAPK signaling pathways.

DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY (2024)

Article Fisheries

Inclusion of ageing error and growth variability using a bootstrap estimation of age composition and conditional age-at-length input sample size for fisheries stock assessment models

Peter-John F. Hulson, Benjamin C. Williams

Summary: This study evaluates the impact of considering ageing error and growth variability on the determination of input sample size (ISS) in statistical catch-at-age assessment models. The results show that including these sources of uncertainty decreases the ISS determined through bootstrap methods. This indicates that there is more variability in age composition and conditional age-at-length data than previously accounted for. Including these sources of uncertainty improves the estimation of ISS and subsequently improves the quality of stock assessment models.

FISHERIES RESEARCH (2024)

Article Fisheries

Integrative transcriptomics and metabolomics analysis of body color formation in the common carp

Li Bijun, Chen Lin, Yan Mengzhen, Jiang Zhou, Xue Yaguo, Xu Peng

Summary: The coloration of aquatic animals affects their adaptability to their environment and economic values. This study investigated the different components and molecular mechanisms of red and brown skin colors in common carp using LC-MS and transcript analysis. The results revealed the importance of retinol and carotenoid metabolism in the formation of body color in common carp, providing insights into the mechanism of color determination in this species.

AQUACULTURE (2024)

Article Fisheries

Docosahexaenoic acid (DHA) promotes grass carp (Ctenopharyngodon idella) muscle fiber development by activating MEK/ERK pathway in vitro and in vivo

Shanghong Ji, Handong Li, Xiaocheng Huang, Jian Sun, Gen Kaneko, Hong Ji

Summary: This study found that DHA promotes the development of grass carp muscle fibers, contributing to muscle growth and cell proliferation, and acts through the activation of the MEK/ERK pathway.

AQUACULTURE (2024)

Article Fisheries

Intermittent hypoxia promotes largemouth bassheart adaptation through increasing angiogenesis, reprogramming calcium signaling, and upregulating mitochondrial turnover

Liulan Zhao, Dongmei Zhang, Kuo He, Yifan Hu, Hao Liu, Haoxiao Yan, Qiao Liu, Lisen Li, Taiming Yan, Yan Wang, Rabia Tahir, Wei Luo, Jie Luo, Song Yang

Summary: This study investigated the effects of intermittent hypoxia on the heart of fish and found that the heart undergoes various compensatory mechanisms, including changes in structure, promotion of angiogenesis, reprogramming of calcium signals, and enhancement of mitochondrial function.

AQUACULTURE (2024)

Article Fisheries

Comparison of muscle structure and transcriptome analysis reveals the mechanism of growth variation in Yangtze sturgeon (Acipenser dabryanus)

Qingzhi Li, Jun Wang, Yeyu Chen, Xiaoyun Wu, Ya Liu, Jiansheng Lai, Mingjiang Song, Feiyang Li, Pengcheng Li, Bin He, Bin Wang, Tao Yan, Quan Gong

Summary: The study investigated the molecular mechanism underlying the growth difference of sturgeons, specifically focusing on muscle structure, enzyme activity, and transcriptome analysis. The results showed that there were significant differences in fiber diameter and glycometabolism related enzymes between fast and slow-growing groups. RNA-Seq analysis identified differentially expressed genes and indicated the involvement of IGF1, IGFBPs, and myogenic regulatory factors in growth variation. Pathway enrichment analysis revealed the importance of glycolysis and cell cycle pathways in the improved growth performance of sturgeons. These findings contribute to our understanding of the underlying molecular mechanism of growth variation in fish.

AQUACULTURE (2024)

Article Fisheries

Effect of dietary supplementation with Leuconostoc mesenteroides DH on the antimicrobial capacity and overall health of juvenile loach (Misgurnus anguillicaudatus)

Xiao-Hua Xia, Ning Liang, Xiao-Yu Ma, Lu Qin, Zhong-Jie Chang, Xiao-Wen Zhang

Summary: This study systematically investigated the specific roles of Leuconostoc mesenteroides DH strains in aquaculture, showing that these strains have antibacterial effects, prevent the adhesion of pathogens to fish intestines, improve digestive enzyme activities and growth performance, enhance the ability of hosts to combat pathogens, reduce intestinal damage, and improve survival rates and overall health.

AQUACULTURE (2024)

Article Fisheries

Comparative chromatin dynamics reveal differential thermal tolerance mechanisms between two congeneric oyster species

Chaogang Wang, Zhuxiang Jiang, Mingyang Du, Qingyuan Li, Rihao Cong, Wei Wang, Guofan Zhang, Li Li

Summary: This study conducted a comparative analysis between two species of oysters to reveal the differential thermal tolerance mechanisms in response to high-temperature stress. The research found that the two species exhibited divergent gene expression and epigenetic regulation, with the relatively thermotolerant species showing a more efficient transcriptional regulatory network at the genomic level.

AQUACULTURE (2024)

Article Fisheries

Use of moringa protein hydrolysate as a fishmeal replacer in diet of Oreochromis niloticus: Effects on growth, digestive enzymes, protein transporters and immune status

Shimaa A. Amer, Afaf N. Abdel Rahman, Mohamed Elhady, Ali Osman, Elsayed M. Younis, Abdel-Wahab A. Abdel-Warith, Amr A. Moustafa, Tarek Khamis, Simon J. Davies, Rowida E. Ibrahim

Summary: This study found that partial replacement of fishmeal (FM) with moringa protein hydrolysate (MPH) in the diet of Nile tilapia can improve growth, digestive enzyme activity, economic efficiency, immune status, and gene expression related to immune function. Increasing levels of MPH replacement showed positive effects on growth parameters, hormone levels, enzyme activity, and immune indices. The resistance to bacterial challenge also increased with FM replacement by MPH. Overall, MPH can be utilized as a replacement for FM up to 60% to enhance the performance and immune status of Nile tilapia.

AQUACULTURE (2024)

Article Fisheries

Towards sustainable aquaculture: Assessing polychaete meal (Alitta virens) as an effective fishmeal alternative in European seabass (Dicentrarchus labrax) diets

M. Monteiro, R. S. Costa, V. Sousa, A. Marques, T. Sa, L. Thoresen, S. A. Aldaghi, M. Costamagna, M. Perucca, K. Kousoulakic, L. M. P. Valente

Summary: This study investigated the feasibility of replacing fishmeal with polychaete meal in diets for European seabass. The results showed that polychaete meal could effectively replace fishmeal without compromising growth and nutrient utilization, and also had a smaller environmental impact.

AQUACULTURE (2024)

Review Fisheries

Membrane-based recirculating aquaculture system: Opportunities and challenges in shrimp farming

I. N. Widiasa, H. Susanto, Y. P. Ting, G. Suantika, S. Steven, K. Khoiruddin, I. G. Wenten

Summary: Membrane technology has great opportunities and challenges in the application of recirculating aquaculture systems. Microfiltration, ultrafiltration, or membrane bioreactors can improve water quality and reduce water consumption. In addition, membrane-based systems also have promising prospects in shrimp farming.

AQUACULTURE (2024)

Article Fisheries

Integration of transcriptome and metabolome reveals molecular mechanisms responsive to cold stress in gynogenetic mrigal carp (Cirrhinus mrigala)

Hongqing Li, Wuhui Li, Jisen Su, Zexun Zhou, Yan Miao, Xuelei Tian, Min Tao, Chun Zhang, Yi Zhou, Qinbo Qin, Huirong Yang, Shaojun Liu

Summary: By analyzing the transcriptomes and metabolomics of liver tissues, this study provides a comprehensive and unbiased understanding of the molecular mechanism of cold tolerance in gynogenetic mrigal carp. The results show that multiple pathways related to immunity, disease, metabolism, and growth are active under cold stress.

AQUACULTURE (2024)

Article Fisheries

Development of spermatogonial cell transplantation in barramundi (Asian seabass: Lates calcarifer)

Kensuke Ichida, Reoto Tani, Somkiat Sreebun, Araya Jangprai, Pailin Pasomboon, Ryosuke Yazawa, Goro Yoshizaki, Surintorn Boonanuntanasarn

Summary: Selective breeding is crucial for sustainable aquaculture, and barramundi is no exception. Developing a germ cell transplantation method is essential for preserving diverse genetic characteristics. Transplanting frozen germ cells into recipients is a powerful tool for obtaining the next generation.

AQUACULTURE (2024)

Review Fisheries

Broodstock and seed production in biofloc technology (BFT): An updated review focused on fish and penaeid shrimp

Mohammad Hossein Khanjani, Mansour Torfi Mozanzadeh, Moslem Sharifinia, Mauricio Gustavo Coelho Emerenciano

Summary: Biofloc Technology (BFT) has great potential in aquaculture, reducing costs and improving productivity. It plays a crucial role in hatcheries by providing high-quality live foods. It maintains biosecurity and provides essential nutrients for successful reproduction and high-quality offspring.

AQUACULTURE (2024)

Article Fisheries

Optimization of weaning age for striped murrel (Channa striata) based on expression and activity of proteases

Rakhi Kumari, P. P. Srivastava, Kedar N. Mohanta, Paramananda Das, Rajesh Kumar, Lakshman Sahoo, Prakash Sharma, Gopal Krishna, Anirban Paul, G. M. Siddaiah

Summary: The pattern of gene expression and the activity of three proteases were investigated in larvae and juveniles of striped murrel. The study found that the expression levels and activities of trypsin, chymotrypsin, and pepsin varied during the growth stages, suggesting the optimal weaning period for larvae/juveniles of C. striata.

AQUACULTURE (2024)