Latin American Journal of Aquatic Research最新文献

{"title":"Biochemical composition and condition of wild blackfin snook Centropomus medius through the reproductive cycle","authors":"M. Maldonado-García, V. Gracia-López, Alexia Omont, Jesús Rodríguez-Romero, Carlos Rosas-Vázquez, Manuel Carrillo","doi":"10.3856/vol52-issue1-fulltext-3046","DOIUrl":"https://doi.org/10.3856/vol52-issue1-fulltext-3046","url":null,"abstract":"The blackfin snook, Centropomus medius, is a valuable fish in American and Mexican markets, mainly from catches. Nonetheless, information and studies about the biology of this species still need to be made available; thus, its aquaculture should be developed. This study aimed to describe the seasonal changes of proximate composition during a reproductive cycle of C. medius, analyzing differences between tissues and their changes related to the reproductive process. The snook specimens were collected in Magdalena Bay, Baja California Sur, Mexico, and measured every month from September 2001 to November 2002. Liver, gonads, muscle tissue, and intraperitoneal fat (IPF) were sampled and weighed. The gonadosomatic index (GSI), hepatosomatic index (HSI), IPF ratio, and condition factor index (K) were calculated. The biochemical composition was analyzed in the gonad, liver, and muscle. The reproductive period (RP) of wild C. medius in Baja California Sur, Mexico, was from June to December. The spawning period was recorded at summer temperature (25-30°C) and photoperiod (>13 h daylight) starting in September. High GSI values (gonad development), low HSI values (lipid reserve mobilization), low IPF, and low K ratio were related to elevated temperatures. Moreover, variations were observed in protein, total lipid, triglycerides, and glycogen content in muscle, liver, and gonad according to the reproductive phase. A positive correlation was demonstrated between protein contents in muscle, gonad, and K, with lower concentrations during RP, while liver protein composition showed an opposite pattern. Lipids were mainly present in the liver, and the concentration decreased during RP while muscle increased. The results obtained in this study show differences in the proximate analyses in the liver, muscle, and gonads throughout the year concerning different phases of the reproductive cycle, indicating a great dependence of this process on the mobilization of reserves during C. medius reproduction. Therefore, understanding the feeding requirements to pursue the management of this species in captivity for aquaculture development is greatly important.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140411058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental transplantation of Durvillaea incurvata in southern Chile: implication for its restocking","authors":"Javier Paredes-Mella, Luis Oroz, Alfonso Gutiérrez, Andrea Zúñiga, Camila Martínez, A. Villarroel, Daniel Varela, Luis A. Henríquez-Antipa","doi":"10.3856/vol52-issue1-fulltext-3097","DOIUrl":"https://doi.org/10.3856/vol52-issue1-fulltext-3097","url":null,"abstract":"Durvillaea incurvata is a brown macroalgae of ecological, social, and economic importance subjected to a drastic increase in harvesting pressure over the last decade in Chile. In this study, we performed an experimental transplantation of juveniles of D. incurvata, assessing the potential use as a restocking technique. Different types of restocking devices and attaching substrates were constructed. Differences in the D. incurvata re-attachment probability among the substrates and devices were not observed, and a high percentage of juvenile mortality was observed. However, reattached juveniles increased their length, holdfast diameter, and weight. The experiment revealed that juveniles of D. incurvata have a good capacity for re-attachment and growth on artificial substrates after transplantation. This technique could be used for the species stock enhancement, although further studies are needed to optimize the process and increase the juvenile's re-attachment.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140409517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights into swordfish (Xiphias gladius) movement patterns and habitat utilization off the coast of northern Chile","authors":"C. Sepulveda, S. Aalbers, Michael Wang, Natalio Godoy, Alexis M. Jackson, L. Bellquist, Kate Kauer, Ilia Cari, Patricia M. Zarate","doi":"10.3856/vol52-issue1-fulltext-3090","DOIUrl":"https://doi.org/10.3856/vol52-issue1-fulltext-3090","url":null,"abstract":"This study reports on the fine-scale movements of swordfish (Xiphias gladius) tagged off of the Antofagasta region of northern Chile, where harpoon fishing operations date back more than seven millenia. The study was conducted within a highly productive swordfish foraging area where movements and habitat use remain poorly characterized. Swordfish were outfitted with both data storage and satellite-linked archival tags scheduled for short (<30 days) and longer-term (>100 days) data collection. All tags were deployed on basking swordfish using harpoon-based methods across two field seasons in March 2019 and April 2022 around oceanic fronts and offshore seamounts. Fine-scale depth and temperature data were recorded over 145 days from four adult swordfish (100-200 kg). Swordfish exhibited regionally unique diurnal behaviors with greater average daytime depths than those recorded at night (78.0 ± 66.5 and 12.7 ± 4.9 m, respectively). The average daytime depths were shallower than those previously documented for other Pacific regions, including Chile's offshore waters. Daytime basking was observed on 76% of the daily records (110 out of 145 days) and accounted for approximately 12% of the collective daylight hours. Findings align with previous swordfish tagging studies and suggest that depth distribution patterns vary considerably depending on regional oceanographic conditions. Movement data are compared with previous studies, and we discussed relative to regional fishing operations.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140410371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimation of design parameters of the Fibonacci-type photobioreactor 5000 L","authors":"Juan Pablo Díaz, C. Inostroza, F. Acién","doi":"10.3856/vol52-issue1-fulltext-3040","DOIUrl":"https://doi.org/10.3856/vol52-issue1-fulltext-3040","url":null,"abstract":"The presented Fibonacci-type tubular photobioreactor represents a significant advancement over classical tubular photobioreactors. It exhibits notable flexibility in its geometric design with the ability to adapt its parameters to meet the specific photosynthetic requirements of microalgae, thereby achieving maximum efficiency. As a result, it emerges as a viable alternative to conventional tubular systems. Furthermore, the strategy utilized for optimizing the design of Fibonacci-type photobioreactors is also described. This strategy is applied to design a 5000 L reactor, serving as a potential approach to harnessing these reactors for the industrial-scale production of high-value microalgae with commercial significance.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140412647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fish community, seasonal movement and habitat use in a subtropical coastal lagoon","authors":"Isadora Jy’asu Moreno-Pérez, Juana López Martínez, J. G. Padilla-Serrato, Jesús Rodríguez-Romero, E. Barjau-González, J. Arreola-Lizárraga","doi":"10.3856/vol52-issue1-fulltext-3108","DOIUrl":"https://doi.org/10.3856/vol52-issue1-fulltext-3108","url":null,"abstract":"Coastal lagoons are environmentally and naturally dynamic areas crucial for fish reproduction and nursery. Thus, this research aims to evaluate the importance of the species performing their biological processes and development in this ecosystem. For this purpose, a subtropical coastal lagoon in the Gulf of California was taken as a case study, where four sampling seasonal campaigns were performed within the lagoon (internal zones) and the marine environment (external) nearby zones from 2016 to 2017. Diversity, evenness, and dominance indices were determined, and the number of individuals, size, length at first maturity, and reproductive period of each species were analyzed to obtain fish use of the lagoon. This coastal lagoon shows a high abundance of juvenile organisms in the cold season, whereas mature adults were mostly present during the warm season. Environmental variables influencing fish species development and distribution, such as sea surface temperature, salinity, and chlorophyll-a, were detected. To conclude, the subtropical coastal lagoon in the Gulf of California is an important nursery area where reproduction occurs mostly near adjacent areas.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140415811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bases to inform a genetic line of whiteleg shrimp Penaeus (Litopenaeus) vannamei of Mexican origin","authors":"R. Pérez-Enríquez, F. Magallón‐Barajas, R. Llera‐Herrera","doi":"10.3856/vol52-issue1-fulltext-3066","DOIUrl":"https://doi.org/10.3856/vol52-issue1-fulltext-3066","url":null,"abstract":"The whiteleg shrimp Penaeus (Litopenaeus) vannamei is one of the most relevant aquaculture species in Latin America and globally. Among several elements, the improvement of its production depends on the larval genetic quality produced in commercial hatcheries. A strategy for achievement is setting up a long-term management plan that includes the genetic settlement of a breeding population with broad genetic variability and reduced inbreeding levels and the design of adequate management and crossbreeding schemes. The settlement of the breeding population requires a detailed characterization of the genetic composition and diversity of the breeding line(s) that are being managed. The present study evaluated the genetic composition of six wild populations from the southern and northern coasts of the Mexican Pacific (Oaxaca, Guerrero, Nayarit, and Sinaloa) and 56 breeding lots maintained in commercial hatcheries. The genetic profiles of a low-density SNP marker panel (171 and 152 loci for the wild and hatchery-reared groups, respectively) were used to estimate genetic diversity and differentiation within and among samples. The wild population presented significant genetic differences between southern and northern Pacific locations. Although these populations showed higher diversity levels than the cultivated stocks, the genetic pool of the total 56 lots was highly variable with low inbreeding levels. The genetic characteristics of the analyzed populations and cultivated stocks warrant the constitution of a Mexican-origin breeding line with future potential for selection to the environmental conditions of the northwestern region of Mexico.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140408900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of protein and lipid ingredients through in vitro digestibility for tropical gar (Atractosteus tropicus) juveniles","authors":"R. Guerrero‐Zárate, M. A. Olvera‐Novoa, R. Jesus-Contreras, C. Frías‐Quintana, R. Martínez‐García, C. Álvarez‐González","doi":"10.3856/vol52-issue1-fulltext-3037","DOIUrl":"https://doi.org/10.3856/vol52-issue1-fulltext-3037","url":null,"abstract":"Tropical gar (Atractosteus tropicus) is an ecologically, culturally, economically, and scientifically important species. Therefore, it is essential to know the available resources to design feeds for the culture of this species. This study evaluated the in vitro digestibility of meals and oils commonly used in aquaculture, using crude extract of the stomach and intestines of A. tropicus juveniles. We used the pH stat titration system to determine the degree of hydrolysis (DH%), the concentration of amino acids released (mg g of meal-1), and the speed of hydrolysis (SH%) of various animal and vegetable ingredients. The relative digestibility of each protein ingredient was calculated using bovine hemoglobin for acid digestion and Hammersten bovine casein for the alkaline phase as reference ingredients (100% digestibility). For lipid ingredients, fish oil was used as a reference. The highest relative digestibility for protein ingredients was observed with fish, crustaceans, beef, poultry meat and offal, and beef blood meals. The best lipid SH was observed with soybean lecithin and cod liver, soybean, olive, maize, and canola oils. It is possible to use a wide variety of terrestrial animal proteins and vegetable oils for manufacturing a diet for A. tropicus rearing.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140409053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physiological role of genes involved in taurine biosynthesis in fishes and in silico approach to determine transcription factors in their promoters’ zone","authors":"Talhia Martínez-Burguete, E. Peña‐Marín, R. Martínez‐García, R. Llera‐Herrera, C. Álvarez‐González","doi":"10.3856/vol52-issue1-fulltext-3026","DOIUrl":"https://doi.org/10.3856/vol52-issue1-fulltext-3026","url":null,"abstract":"Taurine, an amino sulfonic acid that is sometimes referred to as an amino acid, is endogenously synthesized by the action of the key genes/enzymes: cysteine dioxygenase (cdo), cysteine sulfonate decarboxylase (csad), glutamate decarboxylase (gad), and 2-amino ethanethiol dioxygenase (ado). The taurine transporter (taut) also distributes this taurine formation across the plasma. These genes have been identified as important in different physiological processes such as reproduction, digestion, olfactory, visual, circulatory, and muscular systems. Thus, a literature review of these genes in fish has been described in the present work. Moreover, there is null information regarding the study of regulatory elements such as transcription factors (TFs) in taurine biosynthesis and transportation genes of fishes. In this interest and taking advantage of the availability of different sequence databases, bioinformatics can be applied as a first approach for an in silico identification of the putative TFs and transcription factor binding sites (TFBS) that might play an important role in regulating these genes. The results showed that some are commonly shared, whereas TFs and TFBs vary among fish species. Hence, binding sites for homeobox protein BarH-like 1 (BARX1), brain-specific homeobox protein homolog (BSX), helicase-like transcription factor (HLTF), homeobox protein Hox-A7 (HOXA7), homeobox protein Hox-B3 (HOXB3), homeobox protein Hox-B6 (HOXB6), homeobox protein Meis1 (MEIS1), homeobox protein Meis3 (MEIS3), nuclear factor of activated T cells 1 (NFATC1), and homeobox protein Nkx-6.2 (NKX6-2) were commonly found in the promoter regions of genes involved in taurine transportation and biosynthesis. Additionally, our results suggested that the frequency of HOXB3, a transcription factor involved in development, has repetitive TFBS sites in the promoter region of all species analyzed in the present study. Although bioinformatics gives us an approach to determine putative TFs and TFBS, further work is needed to verify how the found regulatory elements play a key role in taurine biosynthesis and transportation.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140411783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"General health status of a stranded Tursiops truncatus of the oceanic ecotype in southern Gulf of Mexico, Campeche coasts: a multidisciplinary analysis","authors":"K. L. Naranjo-Ruiz, A. Delgado-Estrella, Y. Torres-Rojas, Isabel Silva, Mayra D. Manrique-Ortega, E. Mendoza-Franco, Jaime Rendón-von Osten, Ricardo Dzul-Caamal, R. D. del Rio-Rodriguez","doi":"10.3856/vol52-issue1-fulltext-3078","DOIUrl":"https://doi.org/10.3856/vol52-issue1-fulltext-3078","url":null,"abstract":"Strandings provide valuable information about rare marine organisms and their relationship with their environment. In the southern Gulf of México, specifically on the central coast of Campeche, Mexico, strandings of oceanic cetaceans have rarely been recorded, therefore, biological information has also been scarce. One of such rare stranding cases occurred on September 7, 2022, on the coast of Seybaplaya, Campeche. The specimen was identified as a female of Tursiops truncatus with the morphology features of the oceanic ecotype. The carcass was examined shortly after death, and samples for different analyses were obtained fresh. Tissue samples were collected, and some particular observations were made to define the individual's general health status. Results of the analyses revealed damage in the liver, lungs, and kidneys, probably related to 1) the advanced age of the organism (>35 years), and 2) the presence of persistent organic pollutants. Most importantly, this study contributed two new findings, the first record of the parasite Anisakis and the presence of renal calculi in the oceanic ecotype of T. truncatus in the southern Gulf of Mexico.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140409808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Channel catfish, a species with potential deposition of human-beneficial fatty acids","authors":"Gaspar Manuel Parra-Bracamonte, A. Perales-Torres, J. Magaña-Monforte, A. L. Lara‐Rivera, J. Segura-Correa, Yonatan García-Ruiz","doi":"10.3856/vol52-issue1-fulltext-3085","DOIUrl":"https://doi.org/10.3856/vol52-issue1-fulltext-3085","url":null,"abstract":"Fatty acids from fish are of great interest for human consumption, and the channel catfish (Ictalurus punctatus) is one of the most important aquaculture species in Mexico and perhaps in other countries with similar resource endowments. Channel catfish occupy a trophic level that theoretically and potentially allows the retention and de novo biosynthesis of long-chain fatty acids (FAs), essential for human nutrition and health. Here, we present an overview of the main features of FAs, their reported average levels and extreme values in channel catfish assessments, and their correlations. The importance of FAs for human consumption and some implications for future research are discussed.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140414425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}