Aquaculture International最新文献

{"title":"Salinity-dependent effects of integrated biofloc technology on reproductive performance, biological responses, and offspring quality in red tilapia aquaculture","authors":"Ghada R. Sallam,&nbsp;Mohammed F. El Basuini,&nbsp;Amal F. Fahmy,&nbsp;Mohamed A. Al-Absawey,&nbsp;Yusuf Jibril Habib,&nbsp;Rahma Ahmed Mustafa,&nbsp;Walied M. Fayed,&nbsp;Abdel-Fattah M. El-Sayed,&nbsp;Akram Ismael Shehata","doi":"10.1007/s10499-024-01804-w","DOIUrl":"10.1007/s10499-024-01804-w","url":null,"abstract":"<div><p>The study aims to evaluate the reproductive performance, serum biochemical indices, growth, antioxidant capacity, and immune response of Florida Red Tilapia (<i>Oreochromis</i> sp.) progeny reared at different salinity levels within biofloc technology (BFT) systems, focusing on egg production, fertilization rates, tolerance to oxidative stress, and offspring performance. Broodstock reared in biofloc systems (BF) were compared to those in clear water (Without biofloc, WBF) across three salinity levels (18, 28, and 36‰) over a 7-month period. The study also assessed the tolerance of fry reared in biofloc systems to direct transfer to high salinity (36‰) without prior acclimatization. A total of 216 females (initial body weight: 182 ± 1.8 g) and 72 males (initial body weight: 201 ± 0.88 g) were randomly assigned to 18 concrete tanks (2 × 6 × 1 m) to investigate the effects of BFT on spawning performance and larval survival under high-salinity conditions. The findings indicated that appropriate salinity (18‰) in BFT systems positively affected reproductive efficiency, enhanced immunological parameters, and improved growth performance, but elevated salinity levels (36‰) led to reduced reproductive success and hindered growth performance. Florida red tilapia thrive in water quality conditions that are within acceptable limits. High salinity environments led to increased dissolved oxygen but reduced pH, especially in BFT ponds. BFT improved reproductive performance, reduced spawning time, and increased egg production. It also improved hatchability, larval quality, and yolk sac absorption. The BFT broodstock showed higher levels of key proteins (total protein, albumin, and globulin) and improved immune parameters, which helped counteract the negative effects of elevated salinity and enhanced their overall health and stress tolerance. In high-salinity environments, offspring in BFT systems showed higher survival rates and growth rates. In conclusion, BFT improves the reproductive performance, growth, and immune response of Florida red tilapia under high salinity. It enhances egg production, hatchability, and larval survival, while also improving water quality and immune function, making it a sustainable solution for tilapia aquaculture in saline environments.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10499-024-01804-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of dietary vitamins C and E on growth performance, hematological and biochemical parameters, skeletal abnormalities, and disease resistance against V. harveyi of hybrid groupers (Epinephelus fuscoguttatus♀ × Epinephelus lanceolatus♂)","authors":"Isabella Ebi,&nbsp;Rossita Shapawi,&nbsp;Leong-Seng Lim,&nbsp;Annita Seok-Kian Yong,&nbsp;Nurzafirah Mazlan,&nbsp;Muhammad Dawood Shah,&nbsp;Najamuddin Abdul Basri,&nbsp;Abdul Aziz Jaziri","doi":"10.1007/s10499-025-01832-0","DOIUrl":"10.1007/s10499-025-01832-0","url":null,"abstract":"<div><p>Ensuring a well-balanced diet is paramount for the growth and productivity of farmed fish. The interplay of nutrients, particularly essential vitamins like C and E, is crucial for supporting growth and maintaining health. This study seeks to explore the impact of varying levels of dietary vitamins C and E on the growth performance, survival rates, hematological and biochemical parameters, skeletal abnormalities, and disease resistance of hybrid grouper juveniles against <i>Vibrio harveyi</i>. Six experimental diets were formulated, varying in vitamin C (0, 20, and 250 mg/kg) and vitamin E (0, 50, and 800 mg/kg) contents. After a 14-week feeding trial, results revealed that vitamin C–deficient diets significantly reduced growth performance compared to other treatments. Interestingly, a high level of vitamin C without vitamin E supplementation produced growth effects similar to the control diet. Vitamin C and vitamin E supplementations influenced both hepatic vitamin C and vitamin E concentrations. Surplus supplementation of vitamin C improves immune response and disease resistance of a hybrid grouper. Skeletal abnormalities were influenced by dietary vitamin C levels. Overall, supplementation with both vitamins C and E improved growth and disease resistance in hybrid grouper juveniles. Optimal results were achieved with two specific combinations: 18.3 mg/kg of vitamin C paired with 814.8 mg/kg of vitamin E or 271.8 mg/kg of vitamin C paired with 13.4 mg/kg of vitamin E.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Jaw abnormalities may be lethal, recoverable, or stable during gilthead seabream growth","authors":"George Geladakis,&nbsp;Roula Al Belbeisi,&nbsp;Chara Kourkouta,&nbsp;Panayiotis Koutsopodiotis,&nbsp;George Koumoundouros","doi":"10.1007/s10499-024-01816-6","DOIUrl":"10.1007/s10499-024-01816-6","url":null,"abstract":"<div><p>Pugheadedness and shortened lower jaw are frequent abnormalities in reared fish, developing during the early life period up to metamorphosis. In this study, we examined whether these abnormalities in gilthead seabream (<i>Sparus aurata</i> Linnaeus, 1758) could recover during the on-growing period. Furthermore, we examined whether jaw abnormalities affect fish survival and growth rates. At 123 days post-hatching (dph, ca 5.0–7.5 cm standard length, SL), 197–204 seabream juveniles with normal (Nor), pugheaded (UpJ), and shortened lower jaw (LoJ) phenotype were introduced in a common rearing tank. At 162 dph (8.0 ± 0.7 cm SL), fish were pit-tagged and transferred to a sea cage for on-growing up to 514 dph (23.8 ± 1.4 cm SL). Following the morphological examination of fish at 162 and 514 dph, pugheaded individuals were classified into two morphotypes, with (UpJ-Kub) or without (UpJ-Par) gross defects on the maxillary and premaxillary bones. During the on-growing period, 30.4% of the UpJ-Par fish turned into a normal phenotype. No recovery was observed in LoJ and UpJ-Kub juveniles. Geometric morphometric analysis revealed no significant differences in the head shape between the UpJ-Par fish with a recovered phenotype (Rec) and the normal group (<i>p</i> &gt; 0.05, Procrustes distance). A three-landmark-based angle on the snout area was effective in discriminating the normal juveniles (An_sn &gt; 148°) from 62.5% of the UpJ-Par fish without a recovery potential. LoJ, but not pugheadedness, had a significant negative effect on fish growth (<i>p</i> &lt; 0.05, ANOVA) and survival rates (<i>p</i> &lt; 0.05, <i>G</i>-test). The findings are discussed in terms of their practical application for quality control and the removal of abnormal fish in commercial hatcheries.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The evolving multidrug-resistant V. alginolyticus in sea bream commonly harbored collagenase, trh, and tlh virulence genes and sul1, blaTEM, aadA, tetA, blaOXA, and tetB or tetM resistance genes","authors":"Abdelazeem M. Algammal,&nbsp;Mahmoud Mabrok,&nbsp;Khyreyah J. Alfifi,&nbsp;Saad Alghamdi,&nbsp;Dalia M. Alammari,&nbsp;Madeha O. I. Ghobashy,&nbsp;Mohammad Y. Alshahrani,&nbsp;Azza S. El-Demerdash,&nbsp;El-Sayed Hemdan Eissa,&nbsp;Aya M. Elalamy,&nbsp;Reham M. El-Tarabili","doi":"10.1007/s10499-024-01812-w","DOIUrl":"10.1007/s10499-024-01812-w","url":null,"abstract":"<div><p><i>Vibrio alginolyticus</i> is associated with severe infections in marine fish and immunocompromised people. This study investigated the prevalence, genetic typing, associated virulence traits, unveiling resistance genes, and the pathogenicity of <i>V. alginolyticus</i> isolated from sea bream. A total of 200 sea bream (<i>Sparus aurata</i>) were gathered from secluded farms in Port Said, Egypt. Subsequently, clinical, postmortem, and bacteriological analyses, including morphological, culture, biochemical characterization, and PCR-based collagenase gene detection, were performed. The isolated strains were tested for <i>collagenase</i> gene sequencing, antibiogram, pathogenicity, and PCR monitoring of virulence and resistance genes. Herein, <i>V. alginolyticus</i> was found in 14% (28/200) of the collected sea bream, exclusively from the moribund fish. Moreover, the collagenase phylogeny revealed that the tested<i> V. alginolyticus</i> isolates have a distinguished genetic homogeneity with other <i>V. alginolyticus</i> isolates from China, Japan, and the USA. Moreover, the most predominant virulence genes in the tested <i>V. alginolyticus</i> were the <i>collagenase</i> (100%), <i>trh</i> (90.4%), <i>tlh</i> (59.6%), and <i>tdh</i> (21.1%) genes. In this study, 28.8% of the obtained <i>V. alginolyticus</i> strains were multidrug-resistant (MDR) to five classes and encoded <i>bla</i>_TEM,<i> aad</i>A, <i>tet</i>A, <i>bla</i>_OXA, and<i> sul</i>1 genes. Likewise, 15.4% of <i>V</i>. <i>alginolyticus</i> were MDR to four classes and encoded <i>sul</i>1 and <i>tet</i>B genes. As well, 7.7% were MDR to six classes and encoded <i>bla</i>_TEM,<i> tet</i>M, <i>sul</i>1, and <i>bla</i>_OXA genes. Using the cumulative mortality curve, a high mortality rate (87%) was recorded within 7 days in the challenged <i>Tilapia zillii</i> with a virulent <i>V. alginolyticus</i> strain. Concisely, this investigation draws attention to the evolution of MDR <i>V. alginolyticus</i> in sea bream, instructing a health problem. The <i>collagenase</i>, <i>trh</i>, and <i>tlh</i> virulence-related genes and the <i>sul</i>1,<i> bla</i>_TEM,<i> aad</i>A,<i> tet</i>A,<i> bla</i>_OXA, and<i> tet</i>B or <i>tet</i>M resistance genes commonly accompanied the evolving MDR <i>V. alginolyticus</i> in sea bream.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The nanocomposite of chitosan-vitamin C modulates the expression of immune and antioxidant-related genes in Nile tilapia stressed with lead (Pb)","authors":"Ahmed H. Sherif,&nbsp;Amr Fadel,&nbsp;Enas A. Kasem,&nbsp;Magdy E. Mahfouz,&nbsp;Elsayed A. Eldessouki,&nbsp;Hanan A. Fahmy","doi":"10.1007/s10499-024-01806-8","DOIUrl":"10.1007/s10499-024-01806-8","url":null,"abstract":"<div><p>Fish cultivated in a polluted environment usually face complicated disease cases. Pollution is an evitable event in aquaculture that weakens surface immunity, delaying and lowering the immune responses of aquatic animals. In an indoor experiment, Nile tilapia were reared in water polluted with lead (Pb) at a concentration of 51 µg/l for 8 weeks. A trial was conducted to mitigate the immunosuppression using pre-acclimatized Nile tilapia that were subdivided into six groups in which the exposed fish treated with nanocomposite (chitosan-vitamin C-protected nanoparticles (CVC-NPs)) consisted of 1 g of chitosan nanoparticles containing 400 mg vitamin C/kg fish and 200 mg vitamin C/kg fish feed for 1 week. Fish exposed to Pb pollution were immunocompromised as gene expression of immune-related cytokine and antioxidant enzymes significantly declined. Innate immunity was drastically impacted as OBA, phagocytosis and serum antibacterial activity (SAA) showed low values compared to the control fish; meanwhile, exposed fish was challenged against <i>Streptococcus agalactiae</i> and showed a high mortality rate (MR%). Dietary nanocomposite could restore normal immune status, and supplemented fish achieved low MR% with significantly high gene expression of proinflammatory cytokines. It was concluded that adding 200 mg of CVC-NPs/kg fish feed for 1 week could effectively protect Nile tilapia from <i>S. agalactiae</i>, having superiority over the high dose of 400 mg of CVC-NPs.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10499-024-01806-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Totoaba macdonaldi updated: biology, ecology, immunology, nutrition, reproduction, genetics, policies, and social aspects","authors":"Cristian Machuca,&nbsp;Martha Reyes-Becerril,&nbsp;Elizabeth Monreal-Escalante,&nbsp;Ricardo Vázquez-Juárez,&nbsp;Jorge Manuel Silva-Jara,&nbsp;Yuniel Méndez-Martínez,&nbsp;Carlos Angulo","doi":"10.1007/s10499-024-01810-y","DOIUrl":"10.1007/s10499-024-01810-y","url":null,"abstract":"<div><p>Totoaba (<i>Totoaba macdonaldi</i>), an ancient fish endemic to the Gulf of California (Sea of Cortez), has faced significant challenges in recent decades. Since 1990, several serious issues have been raised regarding conservation, fisheries, and sustainable aquaculture. In the search for solutions for sustainable Totoaba aquaculture in Mexico, research from natural and social science disciplines has converged to give explanations and proposals. In light of the scientific findings, publications have brought insights into biology, immunology, ecology, nutrition, reproduction, genetics, policies, and social aspects. This review synthesizes and integrates the current state of knowledge across these fields, offering a comprehensive overview of Totoaba research and highlighting prospects, with a particular emphasis on sustainable aquaculture practices and long-term conservation strategies.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of different aquaculture systems on chronic hypoxia tolerance in Nile tilapia, Oreochromis niloticus: growth rate, physiological responses, oxidative stress biomarkers, and flesh quality","authors":"Mohamed M. Refaey,&nbsp;Fawzya E. Zghebr,&nbsp;Abdallah Tageldein Mansour,&nbsp;Ahmed I. Mehrim","doi":"10.1007/s10499-024-01799-4","DOIUrl":"10.1007/s10499-024-01799-4","url":null,"abstract":"<div><p>This study aims to evaluate the effect of rearing systems, traditional aquaculture system (TAS) and recirculating aquaculture system (RAS), on the ability of Nile tilapia, <i>Oreochromis niloticus</i>, to tolerate chronic hypoxia, growth, hemato-biochemical and oxidative stress biomarkers, and flesh quality parameters. The study consists of two parts, the first involves rearing fish under TAS and RAS in three replicates for 60 days. Nile tilapia fingerlings (initial weight 41.59 ± 5.21 g) were stocked at 4.15 ± 0.61 kg m^–3 in both systems. The second part is a chronic hypoxia test (dissolved oxygen = 1.0 ± 0.2 mg L^–1) in three replicates for 10 days at a stocking density of 7.60 ± 0.36 kg m^–3, followed by a recovery period of 48 h. Fish reared in RAS outperformed (<i>P</i> &lt; 0.0001) TAS in terms of weight gain by 49.57%. Hypoxic fish in both systems exhibit behavioral and morphological changes, which are more rapid in appearance and severe in TAS compared to RAS. Serum cortisol and glucose levels raised significantly (<i>P</i> ≤ 0.05) in both treatments indicating stress, but return to normal levels after the recovery period. Hematological parameters, AST activity, serum proteins, total antioxidant capacity, and superoxide dismutase activity of fish reared in TAS were significantly (<i>P</i> ≤ 0.05) lower in most sampling times. Flesh quality parameters in TAS-reared fish were significantly (<i>P</i> ≤ 0.05) deteriorated than those reared in RAS at all-time intervals. In conclusion, fish reared in RAS experienced superior growth performance, better tolerance to chronic hypoxia, health status, and flesh quality compared to TAS.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nitrogen and phosphorus-related functional genes enhance nutrient removal in the integrated aquaculture wastewater bioremediation system in the presence of photosynthetic bacteria","authors":"Muhammad Naeem Ramzan,&nbsp;Ding Shen,&nbsp;Yingzhen Wei,&nbsp;Arslan Emmanuel,&nbsp;Regan Nicholaus,&nbsp;Wen Yang,&nbsp;Zhongming Zheng","doi":"10.1007/s10499-024-01809-5","DOIUrl":"10.1007/s10499-024-01809-5","url":null,"abstract":"<div><p>Integrated Aquaculture Wastewater Bioremediation Systems (IAWBSs) are crucial for treating nutrient-rich mariculture water. However, there is a lack of detailed information about the functional mechanisms between nitrogen (N) and phosphorus (P) functional genes and the bacterioplankton community in the presence of photosynthetic bacteria (PSB). This study evaluated the connections between N and P functional genes in IAWBSs under the influence of PSB. The results showed significant improvements in effluent quality, with removal efficiencies of 79, 74, 83, 90, and 71% for NO₂⁻−N_, NO₃⁻−N, PO₄³⁻_-P, NH₄⁺−N, and COD_Mn, respectively. Adding PSB enhanced and altered microbial diversity within the system, promoting the abundance of functional genes related to N and P cycling. Notably, genes associated in denitrification (<i>nirK</i> and <i>nirS</i>), ammonification (<i>ureC</i>) and <i>amoB</i>, involved in nitrification, were significantly increased after PSB was added. Furthermore, genes such as <i>phnK</i>, <i>phoD</i>, and <i>phoX</i>, which are involved in P transformation, also showed increased abundance levels. These genes were closely linked to the microbial community distribution, species diversity, and nutrient cycling. Microbial community changes can result in changes in functional gene abundance. This study provides important and novel insights for developing bioremediation strategies for polluted sites. This demonstrates the fundamental relationships between the IAWBSs’ functional units and the distribution of microbial communities under the influence of PSB.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated agri-aquaculture of Lactuca sativa and Cyprinus carpio improve yield and economic benefits of small-scale farmers","authors":"Sanaullah Sattar,&nbsp;Muhammad Muneeb,&nbsp;Abdul Majeed Saim,&nbsp;Wali Muhammad Mangrio,&nbsp;Farhan Nabi,&nbsp;Muhammad Bilawal Junaid,&nbsp;Atta Mohi Ud Din,&nbsp;Munirah Abdullah Al-Dosary,&nbsp;Imran Haider,&nbsp;Rashid Iqbal","doi":"10.1007/s10499-024-01820-w","DOIUrl":"10.1007/s10499-024-01820-w","url":null,"abstract":"<div><p>Aquaculture is an interdisciplinary approach that is based on water-food-energy nexus and involves circular bio-based economy concept. This approach has shown immense potential for reduced resource consumption, anthropogenic discharge mitigation, and recycling of nutrients, energy, and agricultural wastes in meeting the global food demands of ever-increasing population. Thus, in this study, we have analyzed the integration of two farming systems, i.e., lettuce (<i>Lactuca sativa</i>) and gulfam fish (<i>Cyprinus carpio</i>), into an agri-aquaculture and compared them with corresponding non-integrated systems or partially integrated systems. The results showed that both lettuce and gulfam fish supported each other as lettuce provided shade and attracted insects for fish feed and fish nitrogenous wastes were utilized by the lettuce for production of green biomass. Consequently, the fully integrated system showed better biomass production with sustainable resource consumption. The gross revenue, cost variable, and net returns of net cost and benefit flow of lettuce and gulfam fish were found considerably high in fully integrated system compared to partially and non-integrated systems. Overall, the net economic return in fully integrated agri-aquaculture systems (PKR 746.57 ± 61.77) was significantly higher than non-integrated (PKR 4181 ± 4.00) and partially integrated system (PKR 326.66 ± 34.26). In brief, the lettuce-gulfam fish agri-aquaculture system could be adopted as a profitable farming system, especially for resource-constrained small-scale farmers as it requires less expense.\u0000</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Different light colors have different effects on the growth, digestion, non-specific immunity, and ovarian maturation of female Exopalaemon carinicauda","authors":"Xiaofang Lai,&nbsp;Xifeng Guo,&nbsp;Chen Wu,&nbsp;Shanrui Shen,&nbsp;Huan Gao","doi":"10.1007/s10499-024-01819-3","DOIUrl":"10.1007/s10499-024-01819-3","url":null,"abstract":"<div><p>Light, including light color, intensity, and photoperiod, plays a crucial role in the growth, digestion, reproduction, and survival of hydrobiont. To clarify the effects of light color on the growth, digestion, nonspecific immunity, and ovarian maturation of female <i>Exopalaemon carinicauda</i>, specific physiological characteristics were studied after 42 days of different light color treatments (Photoperiod L:D = 12:12). The weight gain rate (WGR), specific growth rate (SGR), and survival rate (SR) of the full spectrum group were significantly higher than those of the other groups. The activities of Chymotrypsin, α-amylase (α-AMS), and lipase (LPS) were the highest in the green, full spectrum, and yellow groups, respectively. The activities of total superoxide dismutase (T-SOD), catalase (CAT), and total antioxidant capacity (T-AOC) were highest in the red group, while the activity of lysozyme (LZM) was significantly higher in the yellow group than in the other groups. The ovarian maturation indexes, such as hepatopancreatic somatic index (HSI) and gonadal somatic index (GSI), as well as ovarian maturation-related substances, such as estradiol (E2), triglyceride (TG), and vitellogenin (Vg), were significantly higher in the full spectrum group, whereas there was no difference in cholesterol (TC) between the groups. The expression of growth-related genes, such as crustacean hyperglycemic hormone (CHH), molt-inhibiting hormone (MIH), and gonad-inhibiting hormone (GIH), was highest in the yellow, green, and red groups, respectively. The expression of ovarian maturation-related genes, such as vasa and Vg, was significantly greater in the full spectrum group than in the other groups. The results indicated that growth and ovarian maturation were optimal in a full spectrum environment, while digestion and nonspecific immunity improved under green and red light, respectively.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}