Marine & Freshwater Biology

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Article Fisheries

Effects of chicken manure extract on the directed cultivation of bio-bait Chlorella vulgaris-rotifer (Brachionus plicatilis) and their fatty acid content

Tian Zhu, Haomin Jia, Haopeng Zhang, Yujing Xiao, Cui Han, Jiaxin Yang

Summary: Chicken manure has significant effects on the cultivation of Chlorella and rotifers. The optimal amount of chicken manure extract for continuous cultivation is 10 mLL-1. Chicken manure can promote the growth of Chlorella and improve the fatty acid composition, indirectly enhancing the growth condition and fatty acid content of rotifers.

AQUACULTURE (2024)

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Article Fisheries

Environmentally driven changes in Atlantic salmon oxidative status interact with physiological performance

Peng Yin, Takaya Saito, Per Gunnar Fjelldal, Bjorn Tharandur Bjornsson, Sofie Charlotte Remo, Sandeep Sharma, Rolf Erik Olsen, Kristin Hamre

Summary: This study aims to investigate the effect of seasonal changes in temperature and photoperiod on the redox metabolism of Atlantic salmon at the molecular level. The research findings suggest that the changing photoperiod and temperature influenced the redox metabolism of Atlantic salmon, highlighting the importance of oxidative status in the ecological implications.

AQUACULTURE (2024)

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Article Fisheries

Enhancing immune responses in Japanese flounder (Paralichthys olivaceus) to Keyhole Limpet Hemocyanin by intramuscularly conjugating a new type of chemokine, JfCXCL8_L1b

Beibei Zhao, Renhui Mei, Le Li, Di Hu, Lei Li

Summary: This study reveals that JfCXCL8_L1a and JfCXCL8_L1b have different immune pathways, and JfCXCL8_L1b plays a significant role in enhancing the adaptive immunity of T cell-dependent antigen.

AQUACULTURE (2024)

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Article Fisheries

Changes in sperm metabolome during carp sperm short-term storage in different media: In search of sperm quality and storage capability markers

Viktoriya Dzyuba, Joanna Giebultowicz, Borys Dzyuba, Ganna Fedorova, Vitaliy Kholodnyy, Rados law Kajetan Kowalski, Agnieszka Brzyszcz, Sergii Boryshpolets

Summary: This study used metabolome LC/MS analyses to explore potential metabolic markers of fish sperm quality and storage capability during refrigerated storage. The results showed a correlation between sperm motility and certain metabolites, suggesting potential markers. Using a methanol-containing buffer for sperm storage showed more promising results.

AQUACULTURE (2024)

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Article Fisheries

Determinants and framework for implementing sustainable climate-smart aquaculture insurance system for fish farmers: Evidence from Ghana

Nicholas Oppong Mensah, Jeffery Kofi Asare, Emmanuel Tetteh-Doku Mensah, Ernest Christlieb Amrago, Frank Osei Tutu, Anthony Donkor

Summary: This study investigates aquaculture farmers' preference for climate-smart aquaculture insurance products, the challenges they face, and their preferred insurance coverage. The results show that farmers prefer Climate-Induced Aquaculture Stock Mortality Insurance and the most significant constraint is the delay in claim settlement.

AQUACULTURE (2024)

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Article Fisheries

Immunomodulation of potassium diformate in juvenile grass carp (Ctenopharyngodon idella) after Aeromonas hydrophila infection: T-cell differentiation and cytokine production

Qiu-Ping Chai, Pei Wu, Wei-Dan Jiang, Yang Liu, Hong-Mei Ren, Xiao-Wan Jin, Lin Feng, Xiao-Qiu Zhou

Summary: The study found that appropriate levels of potassium diformate (KDF) can enhance the immune defense and mediate the inflammatory process in fish, possibly through the regulation of T cell differentiation via JAK-STAT and NF-kappa B signaling pathways.

AQUACULTURE (2024)

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Article Fisheries

Evaluation of machine learning method in genomic selection for growth traits of Pacific white shrimp

Zheng Luo, Yang Yu, Zhenning Bao, Fuhua Li

Summary: This study analyzed the heritability and genetic correlation of two growth traits in Pacific white shrimp and evaluated the genomic prediction using different genomic selection models. The results showed that the NeuralNet model had the highest prediction accuracy and better prospects for predicting shrimp growth traits.

AQUACULTURE (2024)

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Article Fisheries

Supplementation of gilthead seabream (Sparus aurata) diets with spices as a functional strategy to control excess adiposity through lipid, cholesterol and bile acid metabolism, and to induce an immunomodulatory intestinal regulation

Alberto Ruiz, Ignasi Sanahuja, Karl B. Andree, Dolors Furones, Paul G. Holhorea, Josep A. Calduch-Giner, Jose J. Pastor, Marc Vinas, Jaume Perez-Sanchez, Sofia Morais, Enric Gisbert

Summary: Supplementing diets with a combination of spice oleoresins can reduce lipid accumulation and inflammation in farmed fish. The combination of spice oleoresins also has an immunomodulatory effect on the fish's intestinal immune system, potentially offering anti-inflammatory benefits.

AQUACULTURE (2024)

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Article Fisheries

Sinomenine improves resistance to foodborne enteritis and Anti-bacteria mucosal immunity in grass carp

Yuhang Liu, Danying Cao, Nan Wu, Xuyang Zhao, Qingsong Zhu, Lian Su, Fatima Altaf, Qianqian Zhang, Haokun Liu, Yongming Li, Bruno Hamish Unger, Yingyin Cheng, Wanting Zhang, Aihua Li, Yaping Wang, Xiao-Qin Xia

Summary: Based on previous research, sinomenine has been found to protect mucosal immunity in farmed fish species by preventing intestinal pathological changes and regulating gene expression related to inflammation. It also enhances immune homeostasis and controls the growth of pathogenic bacteria.

AQUACULTURE (2024)

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Article Fisheries

Revitalizing pond culture system: Harnessing the power of composite nanopeptide C-I20, 1,3-1,6-β-glucan, and anthocyanidin biotherapy as an antibiotic substitute for efficient management of bacterial diseases in bullfrogs

Xingchen Huo, Pengxu Wang, Fengxia Zhao, Qian Liu, Qingqing Tian, Lingjie Tang, Maolin Lv, Zhaohui Wei, Chunrong Yang, Jianguo Su

Summary: Bacterial diseases in aquaculture ponds have negative effects on sustainable development. The use of composite I20 biotherapy has been shown to effectively treat bacterial diseases in bullfrog ponds, providing a new strategy for controlling bacterial diseases in aquaculture.

AQUACULTURE (2024)

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Article Fisheries

The optimal feeding regime for large yellow croaker Larimichthys crocea, with an emphasis on obviating raw fish diet in commercial farming

Yu Liu, Mingtao Lei, Hector Victor, Yan Wang

Summary: This study confirms the feasibility of replacing raw fish diet with a formulated diet in commercial farming of large yellow croaker, which can increase fish survival and yield, and reduce feed cost and body lipid deposition.

AQUACULTURE (2024)

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Article Fisheries

Rate of change in the fillet fatty acid profile of Nile tilapia to attain a nutraceutical level of DHA plus EPA for human consumption

Martin Perez-Velazquez, Jesus Encinas-Mungarro, Mayra L. Gonzalez-Felix

Summary: This study aimed to evaluate the change rate in the fatty acid profile of Nile tilapia fillet by feeding diets formulated with different lipid sources. The results showed that Nile tilapia can efficiently utilize different lipid sources, but the fatty acid composition of the dietary lipid source directly influences the fatty acid profile of the fillet.

AQUACULTURE (2024)

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Article Fisheries

Growth arrest and DNA damage-inducible 45 ab gene targeted by miR-20b-5p executes the inflammation and apoptosis by regulating MAPK and NF-κB pathways in black rockfish

Chengbin Gao, Peng Sun, Xin Cai, Le Ma, Ying Zhu, Min Cao, Chao Li

Summary: The study reveals that miR-20b-5p plays a key role in the inflammatory and apoptotic responses of black rockfish by targeting the gadd45ab gene. The gadd45ab gene is located on the cytomembrane in the black rockfish intestine and its expression is induced by the infection of E. tarda. Overexpression of Ss_gadd45ab significantly up-regulates multiple immune response-related genes and prevents the invasion of E. tarda while promoting cell apoptosis.

AQUACULTURE (2024)

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Article Fisheries

Potential role of dietary zinc on gene regulation of growth performance and immunity in Pangasianodon hypophthalmus against multiple stresses

Neeraj Kumar, Supriya Tukaram Thorat, Samiksha R. Chavhan, Kotha Sammi Reddy

Summary: In recent years, pollution and climate change have increased the risk of climate penalties in aquatic ecosystems. This study found that dietary zinc supplementation can alleviate the stress on Pangasianodon hypophthalmus caused by arsenic, ammonia, and high temperature, and enhance its ability to cope with multiple stressors.

AQUACULTURE (2024)

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Article Fisheries

Sea lice management measures for farmed Atlantic salmon (Salmo salar) in Scotland: Costs and effectiveness

Annette S. Boerlage, Shailesh Shrestha, Ilkka Leinonen, Mona Dverdal Jansen, Crawford W. Revie, Aaron Reeves, Luiza Toma

Summary: Cultured and wild Atlantic salmon are affected by sea lice. This study estimates the cost-effectiveness of sea lice management measures in Scotland and finds that skirts and the use of in-feed medicines are the most cost-effective. Integrated management strategies may reduce the risk of developing resistance.

AQUACULTURE (2024)

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Article Fisheries

A protein chimera for dsRNA binding and delivery into oocytes for large-scale gene silencing in crustacean aquaculture

Omer Ilouz, Shany Cohen, Isam Khalaila

Summary: This article reports the development of a tool for oocyte-specific gene silencing in crustaceans. The tool, named OSSCot, can specifically bind and deliver double-stranded RNA to oocytes, while protecting the RNA from degradation. The results showed that the tool enhances the expression of RNAi enzyme machinery and impairs eye development in embryos.

AQUACULTURE (2024)

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Article Fisheries

Rates of osmoconformation in triploid eastern oysters, and comparison to their diploid half-siblings

Sandra M. Casas, Devin Comba, Megan K. La Peyre, Scott Rikard, Jerome F. La Peyre

Summary: Triploid eastern oysters are more vulnerable to mortality under low salinity and high temperature conditions compared to diploid oysters. They show slower valve opening and osmoconformity, less efficient acid-base regulation, and poorer water content regulation in tissue compared to diploid oysters. Under high temperature and low salinity, triploid oysters experience earlier and higher mortality rates than diploid oysters.

AQUACULTURE (2024)

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Article Fisheries

Assessment of gill microbiome of two strains of Atlantic salmon reared in flowthrough and recirculation hatcheries and following seawater transfer

Petra R. Quezada-Rodriguez, Jamie Downes, Fintan Egan, Richard S. Taylor, Samantha White, Aisling Brenan, Megan L. Rigby, Barbara F. Nowak, James W. Wynne, Neil M. Ruane

Summary: The gill mucosal microbiome of Atlantic salmon is influenced by the culture system and seawater transfer, but has negligible impact from host genetics. The gill microbiome of salmon from different hatchery systems showed differences after seawater input.

AQUACULTURE (2024)

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Article Fisheries

The Atlantic salmon microbiome infected with the sea louse Caligus rogercresseyi reveals tissue-specific functional dysbiosis

Diego Valenzuela-Miranda, Valentina Valenzuela-Munoz, Barbara P. Benavente, Marcelo Munoz-Trorcoso, Gustavo Nunez-Acuna, Cristian Gallardo-Escarate

Summary: Parasitism by sea lice affects the diversity of microbial communities in Atlantic salmon, leading to the occurrence of opportunistic bacterial pathogens and perturbation of the correlation between skin and gut microbiota. Sea lice can act as vectors for transmitting specific bacterial species and induce tissue-specific functional dysbiosis.

AQUACULTURE (2024)

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Article Fisheries

All-female crayfish populations for biocontrol and sustainable aquaculture

Shai A. Shaked, Tom Levy, Sharon Moscovitz, Hanin Wattad, Rivka Manor, Ofer Ovadia, Amir Sagi, Eliahu D. Aflalo

Summary: Snail control in aquaculture and control of snail vectors implicated in animal and human diseases are global challenges. Crayfish species have the potential to be biocontrol agents against snails, but their invasive nature limits their use. The Australian redclaw crayfish could be a promising biocontrol agent, but its aquaculture escapees have become invasive. Producing monosex C. quadricarinatus populations could be a sustainable solution for snail control and improve yields and management in crayfish aquaculture without establishing invasive populations. Female C. quadricarinatus showed high efficiency in predation experiments and all-female populations could be produced through biotechnology.

AQUACULTURE (2024)

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