Article
Environmental Sciences
Ryan Legault, Ali Ahmadi
Summary: This paper presents the development and testing of two compositions of biodegradable soft bait fishing lures. The addition of carboxymethyl chitosan improved the tensile strength and underwater performance of the lures. However, the lures with carboxymethyl chitosan exhibited increased swelling in freshwater, which was undesirable. The results provide insights for further optimizations of the lures' properties and highlight the need for more environmentally friendly fishing options.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Fisheries
L. LaRochelle, A. D. Chhor, J. W. Brownscombe, A. J. Zolderdo, A. J. Danylchuk, S. J. Cooke
Summary: Research has shown that the post-release behavior of largemouth bass caught during ice fishing is influenced by various handling practices, including exposure to air or placement on ice that can lead to lower skin temperatures. After release, largemouth bass tend to select deeper water with increasing water temperatures and exhibit reduced locomotory activity over time. Skin temperature has a significant impact on locomotory activity, with fish having warmer skin temperatures showing lower activity, especially in deeper and warmer water conditions post-release. Anglers practicing catch-and-release during winter should consider minimizing fish exposure to subfreezing temperatures to avoid alterations in their behavior after release.
FISHERIES RESEARCH
(2021)
Article
Environmental Sciences
Stefanie Reinold, Alicia Herrera, Francesco Saliu, Carlos Hernandez-Gonzalez, Ico Martinez, Marina Lasagni, May Gomez
Summary: The presence of microplastics in seafood, particularly in farmed fish, is a concerning issue as it poses potential risks to human health. A study conducted in Tenerife, Spain found that 65% of the examined fish cultivated in coastal waters contained microplastics in their gastrointestinal tracts. Fibres and fragments were the predominant shapes of microplastics detected, with varying compositions.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Ilias Foskolos, Paraskevi Alexiadou, Niki Koutouzi, Silvia Frey, Kirsten F. Thompson, Oliver Boisseau, Alexandros Frantzis
Summary: Rough-toothed dolphins, an isolated subpopulation in the Mediterranean Sea, may have a wider distribution in the offshore waters of the eastern basin than previously thought. Their diet consists of epipelagic squids and octopods, but they are also at risk from consuming plastic pollution, as evidenced by a stranded dolphin with a complete blockage caused by plastic bags and fishing lures. The high pollution loads of macroplastics in the Mediterranean Sea may pose a new potential threat to this subpopulation.
MARINE POLLUTION BULLETIN
(2023)
Article
Agriculture, Dairy & Animal Science
Mengjie Zhang, Xiaoyu Chen, Mingyang Xue, Nan Jiang, Yiqun Li, Yuding Fan, Peng Zhang, Naicheng Liu, Zidong Xiao, Qinghua Zhang, Yong Zhou
Summary: In this study, oral vaccines against largemouth bass ranavirus (LMBV) infection were prepared using yeast surface display technology. The candidate vaccines showed enhanced immune response and effective protection against LMBV infection after continuous oral immunization. These findings suggest that EBY100-OMCP and EBY100-LTB-OMCP are promising and effective candidate vaccines against LMBV infection.
Article
Fisheries
Shannon H. Clarke, Jacob W. Brownscombe, Liane Nowell, Aaron J. Zolderdo, Andy J. Danylchuk, Steven J. Cooke
Summary: The experience level and lure characteristics of anglers have significant impacts on hooking injury and handling time, whereas the angler experience itself does not influence these outcomes. Lure choice plays a crucial role in managing catch-and-release fisheries, as there is a tradeoff between minimizing physiological stress associated with handling and reducing the chances of injury. More research is needed to better understand this tradeoff across various environmental conditions and species.
FISHERIES RESEARCH
(2021)
Article
Virology
Yuqi Jin, Sven M. Bergmann, Qianyi Mai, Ying Yang, Weiqiang Liu, Dongli Sun, Yanfeng Chen, Yingying Yu, Yuhong Liu, Wenlong Cai, Hanxu Dong, Hua Li, Hui Yu, Yali Wu, Mingjian Lai, Weiwei Zeng
Summary: In this study, we identified and confirmed the presence of iridovirus and rhabdovirus members as the likely pathogens in diseased largemouth bass. Co-infection with these viruses was observed, leading to higher mortality rates compared to single infections. The viruses were found to be most similar to largemouth bass virus and hybrid snakehead rhabdovirus. Our findings provide novel ideas for the prevention and treatment of combined virus infection, particularly in largemouth bass.
Article
Environmental Sciences
Anya A. W. Ratnayaka, Laurel E. K. Serieys, Therangika A. Hangawatte, Luke K. P. Leung, Diana O. Fisher
Summary: Recent studies have found that plastic contamination is more severe in terrestrial and freshwater environments than in marine environments. However, the level of plastic pollution in urban wetlands and its impact on wildlife remains poorly understood. In a study of fishing cats in Colombo, Sri Lanka, researchers unexpectedly found plastic debris in 2.17% of the fecal samples collected. The presence of plastic in the samples suggests that these predators are consuming prey contaminated with plastic, highlighting the potential risk of plastic accumulation in wetland food webs.
ENVIRONMENTAL POLLUTION
(2023)
Article
Chemistry, Multidisciplinary
Chaonan Zhang, Qiujie Wang, Shaodan Wang, Zhengkun Pan, Di Sun, Yanbo Cheng, Jixing Zou, Guohuan Xu
Summary: The study found that exposure to virgin polypropylene microplastics (MPs) did not have a detrimental effect on the growth of largemouth bass under aquaculture conditions, as the fish were able to expel MPs with minimal harm to the organism. While MPs exposure did not significantly affect the composition or diversity of intestinal microbial community, it could partly influence intestinal morphology and the recombination process of the intestinal microbial community. Fish may be more sensitive to MPs exposure in water than in feed. Proteobacteria could potentially become pathogenic bacteria in fish gut when affected by MPs.
APPLIED SCIENCES-BASEL
(2021)
Article
Fisheries
Oleksandr Malinovskyi, Samad Rahimnejad, Vlastimil Stejskal, Dominik Bonko, Alzbeta Stara, Josef Velisek, Tomas Policar
Summary: This study revealed that photoperiod duration significantly affects the growth rate and antioxidant capacity of largemouth bass. The 8L:16D group showed the best performance in terms of growth, organosomatic index, and antioxidant capacity. Longer light duration led to oxidative stress in fish liver, brain, and gill, but also boosted antioxidant responses in liver, brain, and kidney.
Article
Fisheries
Fan Liu, Qiming Xie, Xinxin Liu, Xilei Li, Ping Fu, Caixia Song, Jun Zhang, Shiping Su
Summary: The present study found that injection of 50 ng/g nesfatin-1 protein significantly reduced triglyceride and total cholesterol levels in the hepatopancreas of largemouth bass, while levels in plasma were not significantly altered. This suggests that nesfatin-1 affects lipid metabolism in the hepatopancreas of largemouth bass via the PPAR signaling pathway.
AQUACULTURE REPORTS
(2023)
Article
Agriculture, Multidisciplinary
Wen Long, Jiajie Luo, Hongdong Ou, Wen Jiang, Hang Zhou, Yongyin Liu, Lu Zhang, Haifeng Mi, Junming Deng
Summary: The dietary inclusion of citrus pulp (CP) in largemouth bass feed can improve intestinal health without significantly affecting their growth performance, making CP a potential novel prebiotic and immunostimulant ingredient in aquafeed. However, high doses of CP could have adverse effects on growth performance.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Fisheries
Ya He, Haodong Yu, Ziyi Zhang, Jinying Zhang, Shengchao Kang, Xuezhen Zhang
Summary: This study investigated the effects of chronic hypoxia on the growth performance, antioxidant capacity, and protein turnover of largemouth bass. The results showed that chronic hypoxia decreased the growth performance, increased antioxidant capacity, and caused muscle atrophy due to altered protein turnover. Maintaining dissolved oxygen concentration above 60% DO saturation is suggested for better fish growth in aquaculture.
Article
Fisheries
Mingshi Chen, Yuhua Yue, Xiaoxue Bao, Xianjun Feng, Zhuozhi Ou, Yanming Qiu, Kelin Yang, Ying Yang, Yingying Yu, Hui Yu
Summary: The study found significant impacts of nanoplastics on the growth, histopathology, and intestinal microbiota of Micropterus salmoides, with high levels leading to increased SOD and CAT activity in the liver and higher MDA levels in the short term.
AQUACULTURE REPORTS
(2022)
Article
Fisheries
Mohammad Mizanur Rahman, Xiaoqin Li, S. M. Sharifuzzaman, Ming He, Lumpan Poolsawat, Hang Yang, Xiangjun Leng
Summary: Threonine significantly influenced the growth and feed utilization of largemouth bass, with the optimal supplemental level identified as 5.0 g kg-1. Increased threonine supplementation initially led to higher weight gain and specific growth rate, but then showed a decrease in these parameters.
