The Israeli Journal of Aquaculture - Bamidgeh is an academic journal focused on the field of aquaculture, aimed at promoting research and development in aquaculture.

以色列水产学期刊 - Bamidgeh 是一本专注于水产养殖领域的学术期刊，旨在促进水产养殖的研究与发展。

Israeli Journal of Aquaculture - Bamidgeh

This study explores the current status of leisure fishing in Inner Mongolia and its implications for the development of leisure fishing abroad. As an important province in northern China, Inner Mongolia has rich natural resources and unique geographical conditions but still faces many challenges in infrastructure development and ecological protection. By analyzing Inner Mongolia’s unique geographical and climatic conditions, water resource distribution, and industrial structure, the research finds that while the region possesses abundant water resources, inadequate infrastructure and weak awareness of ecological protection remain major constraints on its development. Using the SWOT analysis method, the study identifies the strengths, weaknesses, opportunities, and threats of leisure fishing in Inner Mongolia, highlighting the importance of government policy support and eco-friendly development models in enhancing industry competitiveness. Furthermore, the research proposes strategies to promote industrial chain integration, optimize industrial structure, strengthen infrastructure, implement sustainable development models, and enhance brand building and market promotion. Based on Inner Mongolia’s experience, the study offers insights for developing leisure fishing abroad, recommending a focus on ecological protection and technological innovation, enhancing brand influence, and fostering international cooperation and resource sharing. This research provides a theoretical foundation and practical guidance for developing leisure fishing in Inner Mongolia and other regions, serving as a reference for the sustainable development of global leisure fishing. It emphasizes the necessity of integrated governance and ecological protection while projecting the future prospects for the synergistic development of leisure fishing in economic, environmental, and social dimensions.

Xue Li

Tiantian Pang

Xuebin Feng

Jianying Zhang

Zhuming Zhao

Research on Development Strategies for Leisure Fishing in Inner Mongolia from the Perspective of Industrial Integration

内蒙古休闲渔业发展策略研究——基于产业融合的视角

This present study was conducted to illustrate the effect of dietary cysteamine on feeding, growth, biochemistry composition, hepatosomatic histological structure and metabolism of taurine synthesis in juvenile turbot ( Scophthalmus maximus L.) (2.0 ± 0.01 g) fed high plant protein diets. A fishmeal-based diet (72.5% FM) was designed as the control diet (DietFM). Four isonitrogenous and isolipidic diets consist of 14.0% FM, 23.0% soybean meal and 30.0% wheat gluten meal, which were formulated to substitute FM with 0.0%, 0.05%, 0.1% and 0.15% cysteamine hydrochloride (labeled as DietPP, DietCS-0.05%, DietCS-0.1% and DietCS-0.15% respectively). Fish were stochastically allocated into fifteen 200L tanks and fed twice daily (06:30 and 18:30) to apparent satiation for 9 weeks. Feed intake (FI) in fish-fed DietCS-0.05% was conspicuously higher than that in fish-fed DietPP (p&lt;0.05), and no notable difference was discovered among fish-fed diets with cysteamine inclusion (p&gt;0.05). No conspicuously upward trend was found with the increase of dietary cysteamine in FBW, SGR, WGR, FER, PER, and SR when there was a downward trend in CF, VSI, and HSI (p&gt;0.05). A remarkable increase was discovered from 0.0% to 0.05% cysteamine inclusion in ash content (p&lt;0.05) when no noticeable difference was observed among all the cysteamine inclusion groups in moisture, protein, and lipid content (p&gt;0.05). Only the body taurine content showed a notable increase between fish-fed DietCS-0.05% and fish-fed DPP among the indexes of body taurine, liver taurine, and serum taurine content (p&lt;0.05), whereas no notable difference was observed in hepatosomatic L-cysteine sulfinate decarboxylase (CSD) and cysteamine dioxygenase (CDO) activities among all the cysteamine inclusion groups (p&gt;0.05). The cellular morphology and cell veins in the liver of fish-fed diets with cysteamine inclusion were clearer than those of fish-fed DPP. The results showed that 0.05% cysteamine addition in a high plant protein diet is optimal.

Guoshan Qi

Lu Wang

Yanying Zhang

Qinghui Ai

Kangsen Mai

Effects of dietary cysteamine addition to a plant-based diet on growth performance, body composition, hepatosomatic histological structure and metabolism of taurine synthesis in turbot (Scophthalmus maximus L.)

植物性饲料中添加半胱胺对大菱鲆(Scophthalmus maximus L.)生长性能、体成分、肝体指数组织结构及牛磺酸合成代谢的影响

The full-length cDNA sequence of Penaeus monodon glucose transporter-2 ( PmGLUT2 ) was cloned in this study using the RACE method. Quantitative real-time PCR was used to analyze the differential expression of PmGLUT2 during the development of P. monodon larvae in different tissues and under low salinity stress. The PmGLUT2 cDNA exhibited a total length of 2018 base pairs, with 94 base pairs located in the 5’ untranslated region (UTR) and 352 base pairs in the 3’ UTR. Additionally, the sequence contained 29 base poly (A) tails and 1572 base pairs within the open reading frame (ORF), capable of encoding 523 amino acids. Through a comparative analysis of the amino acid sequences of PmGLUT2 and LvGLUT2 , it was determined that PmGLUT2 had 94.77% homology with Tret1 gene of Litopenaeus vannamei, and 60.54% homology with GLUT2 gene of L. vannamei . The results indicated that there was a fluctuation in PmGLUT2 expression levels from zygote to postlarva development, with initial reduction followed by an increase, although the difference was not statistically significant. According to the molting analysis, the highest expression level of PmGLUT2 was observed in the hepatopancreas during the premolt period, while the gill and gut exhibited peak expression levels during the intermolt period. PmGLUT2 was found to be most abundant in lymph tissue, followed by gill tissue, and least abundant in ootheca, according to the tissue expression analyses. Following 96 hours of acute salt stress, there was a notable inhibition in the expression of PmGLUT2 in the hepatopancreas and gills. Additionally, the expression level in the gills at 96 hours was significantly lower compared to the baseline level at 0 hours.

Yundong Li

Wenwen Zhang

Song Jiang

Peng He

Qibin Yang

Lishi Yang

Jianhua Huang

Falin Zhou

GLUT2 gene from Penaeus monodon: Molecular characterization, expression and association with tolerance to low salinity stress

虾蛄（Penaeus monodon）中的GLUT2基因：分子特征、表达及其与低盐度胁迫耐受性的关联

The crayfish industry ( Procambarus clarkii ) is experiencing rapid growth. However, the processing sector continues to face challenges due to a lack of advanced automation, relying heavily on manual visual inspection to assess crayfish specifications and integrity, which limits efficiency and precision in decision-making. To address the issue of intelligent grading of P. clarkii , this work proposes the GHB-YOLOv8-seg algorithm for segmenting the main trunk of P. clarkii shrimp based on the YOLOv8n-seg model. The original main trunk network is replaced through the coupling of Ghost and HGNetV2, and depth-separable convolution is employed to perform the linear transformation of the features. This results in a reduction in the number of parameters and computational complexity while maintaining high accuracy. The computational complexity is reduced; concurrently, introducing the weighted bidirectional feature pyramid network (BiFPN) enables the model to perform multi-scale feature fusion with greater alacrity, thereby enhancing the model’s performance. Ultimately, the intelligent grading of crayfish specifications was achieved by calculating the pixel area after segmentation and converting it to the actual body weight. The results demonstrated that the number of parameters of the improved YOLOv8n-seg model was reduced by 60.5%, the model size was reduced by 55.4%, and the mAP value was increased from 98.9% to 99.2%. The study indicates that the YOLOv8n-seg algorithm model facilitates precise and lightweight segmentation of the crayfish trunk, which can be integrated into diverse mobile devices.

Chunxin Geng

Aimin Wang

Cheng Yang

Zhiqiang Xu

Yu Xu

Xingguo Liu

Hao Zhu

Application of Improved YOLOv8n-seg in Crayfish Trunk Segmentation

改进的YOLOv8n-seg在小龙虾躯干分割中的应用

The Japanese flounder is a vital economic species among East Asian released and cultured fish. Here, we sought to validate daily increment formation and analyze the early morphological development of sagittal otoliths and lapillus in Japanese flounder larvae and juveniles over 50 days. Our analysis focused on the otolith shapes, the number of daily rings present, and their length and width measurements. The results revealed that sagittal otoliths and lapillus formed before the fertilized eggs hatched. During the larval and juvenile stages, sagittae evolved gradually, transforming from nearly round to oval structures, eventually adopting arrow- or pear-shaped forms. Similarly, lapillus transformed from nearly round to mussel-shaped structures. The first daily ring became evident on the 5 th -day post-hatching, demonstrating a daily periodicity during the larval phase. We observed a direct relationship between incubation days ( D ) and the number of daily otolith increments ( n ), expressed as D = n + 5 . This deposition trend exhibited a daily periodicity for both sagittae and lapillus. We also noted exponential correlations between the length ( L s , μm) and width ( W s , μm) of the sagittae and the total length ( TL , mm). Contrastingly, the lapillus measurements demonstrated linear correlations. Furthermore, a linear relationship emerged between the sagittae and lapillus lengths: L l = 0.3028 L s + 28.534 ( R 2 = 0.9366). Additionally, we found a similar linear relationship between the sagittae and lapillus widths: W l = 0.3791 W s + 21.508 ( R 2 = 0.9426). The formation pattern of daily increments in lapillus was notably more distinct than that in sagittae, making it highly suitable for age identification and group recognition. This study not only contributes to the field of fish ecology but also provides a foundational understanding for future research. It can assist in reconstructing early life histories and inferences about the spawning periods and grounds of stocked Japanese flounder.

Jiabao Tang

Zhaohui Sun

Qinglin Wang

Jiangong Ren

Shanshan Yu

Fei Si

Validation of otolith daily increment formation and early growth analysis of Japanese flounder (Paralichthys olivaceus)

日本鲆（Paralichthys olivaceus）耳石日增量形成验证及早期生长分析

Abbreviation	Isr. J. Aquac.
Journal Impact	0.57
Quartiles(Global)	FISHERIES(Q4)

ISSN	0792-156X
h-index	34

Publication Information	Publisher: Israeli Journal of Aquaculture - Bamidgeh，Publishing cycle: Quarterly，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 1988，Proportion of original research papers: 100.00%，Self Citation Rate:0.00%， Gold OA Rate: 96.77%
Average review cycle	网友分享经验：>36周，或约稿
Average recruitment ratio	网友分享经验：容易

Israeli Journal of Aquaculture - Bamidgeh

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Research on Development Strategies for Leisure Fishing in Inner Mongolia from the Perspective of Industrial Integration

Effects of dietary cysteamine addition to a plant-based diet on growth performance, body composition, hepatosomatic histological structure and metabolism of taurine synthesis in turbot (Scophthalmus maximus L.)

GLUT2 gene from Penaeus monodon: Molecular characterization, expression and association with tolerance to low salinity stress

Application of Improved YOLOv8n-seg in Crayfish Trunk Segmentation

Validation of otolith daily increment formation and early growth analysis of Japanese flounder (Paralichthys olivaceus)

Application of Improved YOLOv8n-seg in Crayfish Trunk Segmentation

Validation of otolith daily increment formation and early growth analysis of Japanese flounder (Paralichthys olivaceus)

Effects of dietary cysteamine addition to a plant-based diet on growth performance, body composition, hepatosomatic histological structure and metabolism of taurine synthesis in turbot (Scophthalmus maximus L.)

GLUT2 gene from Penaeus monodon: Molecular characterization, expression and association with tolerance to low salinity stress

Research on Development Strategies for Leisure Fishing in Inner Mongolia from the Perspective of Industrial Integration