Latin American Journal of Aquatic Research最新文献_第3页

Impact of isolation on growth performance, behavior, and stress responses in Nile tilapia, Oreochromis niloticus 隔离对尼罗罗非鱼生长性能、行为和应激反应的影响

IF 1 4区农林科学

Latin American Journal of Aquatic Research Pub Date : 2023-08-31 DOI: 10.3856/vol51-issue4-fulltext-3019

A. Waheed, Hina Naz, Muhammad Wajid, Muhammad Saleem Khan

{"title":"Impact of isolation on growth performance, behavior, and stress responses in Nile tilapia, Oreochromis niloticus","authors":"A. Waheed, Hina Naz, Muhammad Wajid, Muhammad Saleem Khan","doi":"10.3856/vol51-issue4-fulltext-3019","DOIUrl":"https://doi.org/10.3856/vol51-issue4-fulltext-3019","url":null,"abstract":"The effects of isolation on the growth performance, behavior, blood hematology, and cortisol level of Nile tilapia, Oreochromis niloticus were checked in laboratory conditions. All fishes were closely observed for behavior and growth-related parameters. The weight and diameter of both the control and treatment groups were measured before and after the trial of 28 days using an electronic balance and measuring tape, respectively. At the end of the trial, blood was drawn from the caudal fin to determine some hematological and hormonal parameters. Significant differences were seen in growth performance, cortisol level, and hematology, as weight gain, specific growth rate, relative growth rate, and daily food intake were significantly higher in the control group. In comparison, cortisol levels and feed conversion ratio were significantly higher in the isolated group. White blood cells, lymphocytes, red blood cells, hemoglobin, hematocrit, and mean platelet volume, were significantly higher in the isolated group when compared to the control group. At the same time, the amount of granulocytes, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, and platelets was significantly higher in the control group. Isolated fish showed aggressive behavior towards introduced fish from the control group. Isolation increased the cortisol level, which indicates that the fish was stressed. It is concluded that isolation significantly affects the growth performance, cortisol level, and hematology of O. niloticus.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48556708","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}

引用次数: 0

First record of hyper melanosis in the Patagonian redfish Sebastes oculatus Valenciennes, 1833 (Scorpaenidae) in the southeastern Pacific Ocean 1833年，巴塔哥尼亚红鱼Valenciennes（Scorpaenidae）在东南太平洋的首次黑色素沉着记录

IF 1 4区农林科学

Latin American Journal of Aquatic Research Pub Date : 2023-08-31 DOI: 10.3856/vol51-issue4-fulltext-2973

Jorge Sanchez, Fernando Burgos, Roberto Melendez, S. Klarian

{"title":"First record of hyper melanosis in the Patagonian redfish Sebastes oculatus Valenciennes, 1833 (Scorpaenidae) in the southeastern Pacific Ocean","authors":"Jorge Sanchez, Fernando Burgos, Roberto Melendez, S. Klarian","doi":"10.3856/vol51-issue4-fulltext-2973","DOIUrl":"https://doi.org/10.3856/vol51-issue4-fulltext-2973","url":null,"abstract":"The coloration pattern alteration occurs at a low frequency in fish. The excesses of dark pigments in living organisms are known as melanism or melanosis, but a total blackening of the skin is known as hyper melanism or hyper melanosis. Little is known about why the extreme conditions of albinism and melanosis occur among fish. To date, there are no records of melanism for the genus Sebastes. Here, we report the first case of hyper melanosis in rockfish Sebastes oculatus (Patagonian redfish) in the southeastern Pacific Ocean. In 2005, small-scale fishers from Quintay Beach (Valparaiso, Chile) captured a single individual of Patagonian redfish covered with an excess of dark pigmentation. The specimen had a total length of 35.5 cm, and we followed the literature available to determine its morphometric and meristic features. The measurements led us to conclude that the specimen was a black S. oculatus with a rare melanosis condition. Our finding contributes to the knowledge of this species, and we infer that this melanosis case was caused by genetic heritage or some intergenetic hybridization. Still, genetic studies are necessary to confirm this hypothesis.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46138447","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}

引用次数: 0

Blue button (Cnidaria: Hydrozoa) distribution and trends in the Mexican Atlantic, based on field surveys and open-access data 根据实地调查和开放获取数据，墨西哥大西洋的蓝按钮（Cnidaria：Hydrozoa）分布和趋势

IF 1 4区农林科学

Latin American Journal of Aquatic Research Pub Date : 2023-08-31 DOI: 10.3856/vol51-issue4-fulltext-3070

José Elías Rojas-Cruz, José Jair García-Dimas, Vicencio De la Cruz-Francisco, María A. Mendoza-Becerril

{"title":"Blue button (Cnidaria: Hydrozoa) distribution and trends in the Mexican Atlantic, based on field surveys and open-access data","authors":"José Elías Rojas-Cruz, José Jair García-Dimas, Vicencio De la Cruz-Francisco, María A. Mendoza-Becerril","doi":"10.3856/vol51-issue4-fulltext-3070","DOIUrl":"https://doi.org/10.3856/vol51-issue4-fulltext-3070","url":null,"abstract":"Access to digital technology and software allows the production of a significant amount of biodiversity data, including citizens' species records, combined with field monitoring and standardized surveys, which are valuable to biological sciences; these data can help to know the distribution of organisms like medusozoans. We compiled records of the presence of Porpita porpita from open-access databases, scientific articles, and field observations to know their current distribution on the Mexican Atlantic for the first time. The yearly records of P. porpita increased over time, adding up to 22 records, of which 18 were assigned to citizen science. Most records correspond to 2011-2022, from April to May, and the Veracruz and Quintana Roo states. The records of the species in warm months and states with long shores can be related to an increase in touristic activities and observations by citizens. On the Mexican Atlantic, it is suggested that the use of digital technological devices under citizen science practices for recording P. porpita and its compilation in open-access databases acts as the principal method for tracking the distribution of this species. This work evidenced the need for a solid research framework of knowledge for P. porpita in the Mexican Atlantic, and future research could combine citizen science records and fieldwork records and improve the relationship between biological and oceanographic data to understand their spatial-temporal distribution patterns.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47757699","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}

引用次数: 1

Sustaining local ecological knowledge of artisanal fishers: a perspective from northern Colombia 维持个体渔民的当地生态知识：来自哥伦比亚北部的视角

IF 1 4区农林科学

Latin American Journal of Aquatic Research Pub Date : 2023-08-31 DOI: 10.3856/vol51-issue4-fulltext-2941

Fausto Pineda, Esteban Molina, A. Torregroza-Espinosa, C. Cardona-Almeida, A. Suárez

{"title":"Sustaining local ecological knowledge of artisanal fishers: a perspective from northern Colombia","authors":"Fausto Pineda, Esteban Molina, A. Torregroza-Espinosa, C. Cardona-Almeida, A. Suárez","doi":"10.3856/vol51-issue4-fulltext-2941","DOIUrl":"https://doi.org/10.3856/vol51-issue4-fulltext-2941","url":null,"abstract":"Fishing is one of the oldest activities developed by humans for both food subsistence and economic gain. Artisanal fishing has a great social impact; it helps satisfy basic nutritional needs and generates income for communities. Therefore, local ecological knowledge associated with such fishing practices is important because of its capacity to provide data on fishing research. Fishing in the study area is largely artisanal for subsistence, a consequence of the fact that there are no fishing associations or cooperatives which might empower local workers and help promote the sector. We based our study on a quantitative approach. Through this approach, we analyzed factors that influence future fishing decisions among artisanal fishers in a community in northern Colombia. We found that socioeconomic conditions and pollution were important considerations when respondents contemplated future fishing prospects. Respondents' perceptions of institutional support also influenced their attitudes about fishing. Most respondents planned to continue fishing. We encourage local authorities in such communities to address the challenges faced by artisanal fishers and develop strategies to improve the socioeconomic and environmental conditions in which such people work.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48449687","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}

引用次数: 0

Some blood parameters of Pacific fat sleepers, Dormitator latifrons (Richardson, 1844): a comparative study between male and female in two growth stages 太平洋胖睡者、胖睡者的一些血液参数(Richardson, 1844):男性和女性在两个生长阶段的比较研究

IF 1 4区农林科学

Latin American Journal of Aquatic Research Pub Date : 2023-08-31 DOI: 10.3856/vol51-issue4-fulltext-2990

L. E. Ruiz-González, Dayana Janeth Tafoya-Sánchez, A. Tintos-Gómez, O. B. Del Rio-Zaragoza, Manuel Alejandro Vargas Ceballos, F. Vega-Villasante

{"title":"Some blood parameters of Pacific fat sleepers, Dormitator latifrons (Richardson, 1844): a comparative study between male and female in two growth stages","authors":"L. E. Ruiz-González, Dayana Janeth Tafoya-Sánchez, A. Tintos-Gómez, O. B. Del Rio-Zaragoza, Manuel Alejandro Vargas Ceballos, F. Vega-Villasante","doi":"10.3856/vol51-issue4-fulltext-2990","DOIUrl":"https://doi.org/10.3856/vol51-issue4-fulltext-2990","url":null,"abstract":"Dormitator latifrons is an amphidromous fish widely distributed in the Pacific slope from California to Peru. Although this species has a high potential for aquaculture, there is little information about the blood parameters of sex and growth stage. Eighty specimens of D. latifrons (40 males and 40 females in two growth stages) were used. They were placed in 1700 L tanks, one for each group, and fed with a feed for Tilapia diet with 35% protein and 8% fat. At the end of 30 days, blood samples were collected. Some blood parameters were determined (hematocrit, glucose, total protein, albumin, globulin, and A/G), and hematocrit percentage, glucose, albumins, and globulins presented significant differences between stages (P < 0.05). Total proteins showed differences only between males and females (P < 0.05). The hematocrit registered significant differences between stage and sex (P < 0.05). Differences between stages and sex may be related to a higher growth rate, differences in feed conversion, an increase in energy expenditure, and variations in hormonal levels. This study is the first to determine some blood parameters of D. latifrons under experimental aquaculture conditions concerning sex and growth stage.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43301102","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}

引用次数: 0

Growth and survival analysis of early stages in the pen shell Atrina maura during pilot-commercial production 中试商业生产中笔壳鱼早期的生长和存活分析

IF 1 4区农林科学

Latin American Journal of Aquatic Research Pub Date : 2023-08-31 DOI: 10.3856/vol51-issue4-fulltext-3048

F. Hoyos-Chairez, J. Chávez‐Villalba

{"title":"Growth and survival analysis of early stages in the pen shell Atrina maura during pilot-commercial production","authors":"F. Hoyos-Chairez, J. Chávez‐Villalba","doi":"10.3856/vol51-issue4-fulltext-3048","DOIUrl":"https://doi.org/10.3856/vol51-issue4-fulltext-3048","url":null,"abstract":"Hatchery spat of pen shells is difficult to obtain as production runs generally fail. We present a case of commercial pilot spat production of Atrina maura in the hatchery, describing each phase in detail and determining the growth of larvae and postlarvae using multi-model inference (MMI). Growth rates of larvae in D-veliger to umbo stage (D-larvae = 65 ± 5.1 μm height and 75 ± 5.1 μm length) increased from 4.33 μm d-1 up to 675.6 μm d-1 during postlarvae stage (spat = 10.9 ± 2.2 mm height and 28.1 ± 4.4 mm length). Survival presented a significant daily decrease from 22.5% (beginning) to a final absolute survival of 0.042%. Hence, 50,000 commercial spats were produced from 120 million D-larvae. MMI showed that the best-fitting model describing growth corresponds to a Gompertz model for shell length and an exponential model for shell height. Critical phases were transitioning from D-larvae to the umbo stage (>80% collapse of cultures) and high mortality during metamorphosis. Further studies are required to find solutions to these problems. The results of this study may contribute to improving the management of pen shell production in the hatchery, as the production protocol is different from those used for other bivalve species.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41920205","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}

引用次数: 1

Morphological characterization of blood cells in Amazon River dolphin Inia geoffrensis: a case study 亚马逊河海豚血细胞形态特征的个案研究

IF 1 4区农林科学

Latin American Journal of Aquatic Research Pub Date : 2023-08-31 DOI: 10.3856/vol51-issue4-fulltext-2934

Tania Suarez-Yana, Paulo Colchao-Claux, Jeffrey C. Mangel, Elizabeth Campbell, J. Alfaro‐Shigueto

引用次数: 0

An assessment of the zooplankton biomass in Campeche Canyon (southern Gulf of Mexico) during the "Nortes" storm season of 2011 2011年“Nortes”风暴季节坎佩切峡谷（墨西哥湾南部）浮游动物生物量评估

IF 1 4区农林科学

Latin American Journal of Aquatic Research Pub Date : 2023-07-02 DOI: 10.3856/vol51-issue3-fulltext-3014

Rosa María Fuentes-Martínez, Erik Coria-Monter, M. A. Monreal‐Gómez, Elizabeth Durán-Campos, D. Salas‐de‐León

{"title":"An assessment of the zooplankton biomass in Campeche Canyon (southern Gulf of Mexico) during the \"Nortes\" storm season of 2011","authors":"Rosa María Fuentes-Martínez, Erik Coria-Monter, M. A. Monreal‐Gómez, Elizabeth Durán-Campos, D. Salas‐de‐León","doi":"10.3856/vol51-issue3-fulltext-3014","DOIUrl":"https://doi.org/10.3856/vol51-issue3-fulltext-3014","url":null,"abstract":"Biomass is a valuable indicator of biological production in any ecosystem and represents a proxy of secondary production in the case of zooplankton. This short communication aims to report zooplankton biomass values in the waters of the Campeche Canyon, southern Gulf of Mexico, during the \"Nortes\" storm season of 2011 and to explore their relationship with the hydrography and the circulation pattern. The results showed the presence of cyclonic and anticyclonic eddies associated with high and low water density at the base of the pycnocline. The highest values of zooplankton biomass (>40 g 100 m-3) were observed in regions that presented higher water density values (~26.1 kg m-3). In comparison, the lowest zooplankton biomass values (<5 g 100 m-3) were associated with low water densities (<25.6 kg m-3). The results presented here contribute to elucidating the role that physical forcing plays on the zooplankton biomass of the region, particularly during a season in which the passage of extreme storms is widespread.","PeriodicalId":49917,"journal":{"name":"Latin American Journal of Aquatic Research","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47873600","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}

引用次数: 0

Biochemical indicators of contamination in the coastal area of Callao, Peru 秘鲁卡亚俄沿海地区污染的生化指标

IF 1 4区农林科学

Latin American Journal of Aquatic Research Pub Date : 2023-07-02 DOI: 10.3856/vol51-issue3-fulltext-2946

L. Alvariño, G. Saez, T. Acioly, D. Carvalho Viana, J. Iannacone

引用次数: 0

Unusual high fish biomass suggests healthy conditions in a Mexican reef on the southern Gulf of Mexico 异常高的鱼类生物量表明墨西哥湾南部墨西哥礁的健康状况

IF 1 4区农林科学

Latin American Journal of Aquatic Research Pub Date : 2023-07-02 DOI: 10.3856/vol51-issue3-fulltext-3010

C. González-Gándara

引用次数: 0