Article
Fisheries
Claudia Caramelo Brazao, Rafael Ortiz Kracizy, Fabricio Martins Dutra, Ana Paula de Oliveira, Rafael Itamar da Silva, Eduardo Luis Cupertino Ballester
Summary: This study aimed to evaluate the combined effect of total ammonia and nitrite on Macrobrachium amazonicum juveniles, showing that the prawns exhibited greater tolerance to total ammonia and nitrite concentrations when they were combined, demonstrating antagonistic effects.
Article
Fisheries
Paulo Mantoan, Eduardo Ballester, Andressa Cristina Ramaglia, Alessandra Augusto
Summary: This study investigated the effect of different protein levels in the diet on the growth, feces production, and energy utilization of Macrobrachium amazonicum. The results showed that a diet containing 35% protein was beneficial for enhancing growth and minimizing energy loss.
AQUACULTURE REPORTS
(2021)
Article
Biology
Shubo Jin, Chao Bian, Sufei Jiang, Kai Han, Yiwei Xiong, Wenyi Zhang, Chengcheng Shi, Hui Qiao, Zijian Gao, Ruihan Li, Yu Huang, Yongsheng Gong, Xinxin You, Guangyi Fan, Qiong Shi, Hongtuo Fu
Summary: The researchers obtained the first high-quality chromosome-level genome assembly of the oriental river prawn, predicting the chromosome number and a whole-genome duplication event. By integrating genome and transcriptome data, 21 candidate genes related to sex were predicted.
Article
Fisheries
Fernanda S. David, Danilo C. Proenca, Dallas L. Flickinger, Guilherme Wolff Bueno, Wagner C. Valenti
Summary: This study focused on the carbon budget of integrated multitrophic aquaculture systems in earthen ponds, with the findings indicating that the farmed species have relatively low conversion rates of carbon and that the addition of substrates has minimal impact on carbon assimilation.
AQUACULTURE RESEARCH
(2021)
Article
Environmental Sciences
Di Yu, Shidong Liu, Guangxue Li, Yi Zhong, Jun Liang, Jinghao Shi, Xue Liu, Xiangdong Wang
Summary: This study analyzed the river-sea interaction off the Amazon estuary using remote sensing data and ocean data. The results revealed that the Amazon estuary has a filter effect and the currents limit the diffusion range of suspended particulate matter. The flow direction and velocity are the main forces controlling the long-distance diffusion of river-diluted water.
Article
Environmental Sciences
Yiming Li, Zhiquan Liu, Yuan Yang, Qichen Jiang, Donglei Wu, Youhui Huang, Yang Jiao, Qiang Chen, Yinying Huang, Yunlong Zhao
Summary: The study found that exposure to nanoplastics affects the growth, enzyme activity, and gene expression related to energy metabolism in oriental river prawns. Higher concentrations of nanoplastics were found to have a negative impact on energy metabolism in crustaceans.
ENVIRONMENTAL POLLUTION
(2021)
Article
Fisheries
Fabio Carneiro Sterzelecki, Gabriel Rodrigues Santos, Monica Trindade Abreu de Gusmao, Thayanne Cristine Caetano de Carvalho, Alex Ribeiro dos Reis, Rayane Guimaraes, Maria de Lourdes Souza Santos, Nuno Filipe Alves Correia de Melo, Ronald Kennedy Luz, Glauber David Almeida Palheta
Summary: Studies on integrated farming of shrimp with vegetables are limited. This study evaluated the effects of decreasing concentration of hydroponic solution on water quality and growth of Amazon river prawn and lettuce seedlings. Results showed that ammonia and nitrate levels in rearing tanks increased with the hydroponic solution, impacting shrimp growth and survival. However, lettuce growth was not significantly affected in the initial 14 days, with improvements observed after 18 days with 100% solution. Adding a 20% hydroponic solution is recommended to promote lettuce growth without affecting shrimp development.
Article
Fisheries
Hongwei Zhang, Zhifang Yang, Ruidong Zhang, Kui Wang, Hao Yu, Xin Huang
Summary: This study identified a novel TRIM gene called MnTrim-like in the oriental river prawn. The expression of MnTrim-like in the stomach was significantly up-regulated upon white spot syndrome virus (WSSV) challenge. Knockdown of MnTrim-like resulted in increased expression of VP28 and decreased synthesis of several antimicrobial peptides. Additionally, silencing these antimicrobial peptides led to increased expression of VP28 and WSSV copies. Injection of recombinant MnTrim-like protein with WSSV decreased the transcription of VP28 and the number of virus particles.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Environmental Sciences
Md Ashekur Rahman, Md Yeamin Hossain, Mostafa A. R. Hossain, Zoarder Faruque Ahmed, Ahmed Jaman, Jun Ohtomi
Summary: This study explored the effects of climate change on the reproductive activity of the monsoon river prawn in the Ganges River basin of Bangladesh. The study found a significant correlation between rainfall and the spawning season, with rainfall impacting the number of ovigerous females and fecundity. The findings suggest that the spawning season of the monsoon river prawn may shift due to climate change.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Agricultural Engineering
Joao Paulo Lima, Fabiana P. Melo, Maria Gabriela P. Ferreira, Dallas L. Flickinger, Eudes S. Correia
Summary: This study evaluated four different hatchery systems for Macrobrachium carcinus larviculture, with the Greenwater system showing higher survival rates in the early stages and the Biofloc system demonstrating higher production in the later stages.
AQUACULTURAL ENGINEERING
(2021)
Article
Endocrinology & Metabolism
Huwei Yuan, Wenyi Zhang, Yin Fu, Sufei Jiang, Yiwei Xiong, Shuhua Zhai, Yongsheng Gong, Hui Qiao, Hongtuo Fu, Yan Wu
Summary: The study revealed that MnFtz-f1 plays a pivotal role in the molting and ovulation process of M. nipponense by affecting the expression of 20E and regulating key genes.
FRONTIERS IN ENDOCRINOLOGY
(2021)
Article
Fisheries
Fangyan Pan, Yin Fu, Wenyi Zhang, Sufei Jiang, Yiwei Xiong, Yan Yan, Yongsheng Gong, Hui Qiao, Hongtuo Fu
Summary: The Mn-CYP306a1 gene plays an important role in promoting the synthesis of 20E in Macrobrachium nipponense. It is highly expressed in the reproductive tissues and shows a wave-like expression pattern during embryonic and metamorphic development. RNAi experiments show that inhibiting the expression of this gene can reduce 20E content and molting frequency in M. nipponense, and negatively affect body weight.
AQUACULTURE REPORTS
(2022)
Article
Fisheries
Miao Sun, Xiang-Fei Li, Ya-Ping Ge, Ling Zhang, Bo Liu, Wen-Bin Liu
Summary: This study investigated the optimal dietary thiamine requirement of oriental river prawn and its effects on glycolipid metabolism. The results showed that the growth performance and metabolic indicators of the prawns reached their peak when the dietary thiamine level was 61.40 mg/kg.
Article
Fisheries
Hanu Godfried Worlanyo, Sufei Jiang, Yebin Yu, Bo Liu, Qunlan Zhou, Cunxin Sun, Linghong Miao, Yan Lin, Xiaochuan Zheng, Momodou Saidyleigh, Bin Lv, Brian Pelekelo Munganga
Summary: This study aimed to investigate the effects of threonine on the immune response of juvenile oriental river prawns. The results show that a threonine level of 1.67% in the feed significantly improved the growth performance of prawns, but decreased feed intake and lipid composition. Threonine levels also significantly affected the content and enzyme activities of certain substances in the blood. Furthermore, threonine levels had a significant impact on gene expression in the hepatopancreas.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Zoology
Lucas Rezende Penido Paschoal, Fernando Jose Zara
Summary: The study compared the sperm production and concentration patterns among different phenotypes and populations of Macrobrachium amazonicum, revealing clear differences in investment allocation between morphotypes, with dominant males focusing more on sexual weapons development and smaller males directing more energy towards sperm production.
Article
Ecology
Ana Carolina Melo Rodrigues-Inoue, Antonina Dos Santos, Jussara Moretto Martinelli-Lemos
Summary: This paper aims to identify the distribution patterns of crustacean larvae on the Amazon continental shelf, focusing on the taxa Anomura, Axiidea, and Gebiidea. The study found that environmental variables, such as the Amazon plume and the Great Amazon Reef System, play a key role in determining the dispersal patterns, abundance, and diversity of decapod larvae.
REGIONAL STUDIES IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Claudia Antonia Campos Rodrigues de Oliveira, Paulo Sergio dos Santos Souto, Dulcideia da Conceicao Palheta, Marcelo de Oliveira Bahia, Lorena da AraujoCunha, Maria de Lourdes Souza Santos, Tatiane do Nascimento Medeiros Rodrigues, Bianca Bentes
Summary: Genotoxicity studies on Plagioscion squamosissimus in two different Brazilian Amazon estuaries revealed no significant effects, but the anthropized site showed higher occurrence of DNA damages. The fish in these sites are influenced by xenobiont agents which can cause genetic material damage in aquatic organisms, potentially leading to morphophysiological alterations in humans.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Multidisciplinary Sciences
Luiza Prestes, Ronaldo Barthem, Adauto Mello-Filho, Elizabeth Anderson, Sandra B. Correa, Thiago Belisario D'Araujo Couto, Eduardo Venticinque, Bruce Forsberg, Carlos Canas, Bianca Bentes, Michael Goulding
Summary: Migratory species are critically important in the Amazon's commercial fishing industry, but they are under severe threat from overfishing, floodplain deforestation, and dam construction. Limited government monitoring and regulations hinder effective fisheries management. This study examines the current status of three heavily exploited migratory species and their impacts beyond overfishing. The findings highlight the alarming trend of overfishing and the dangerous synergy with dam construction and deforestation, calling for proactive government actions to address these issues.
Article
Environmental Sciences
Janayna Galvao Araujo, Adauto dos Santos Mello Filho, Ualerson Iran Peixoto, Bianca Bentes, Marcos Antonio Souza dos Santos, Jynessa Dutka-Gianelli, Victoria Isaac
Summary: This study assessed the brown shrimp trawling in the northern coastal waters of Brazil and found that the critical issues primarily lie in the ecological indicators, mainly due to low selectivity resulting in high by-catch volumes and discards, as well as limited participation of productive chain actors affecting management measures effectiveness.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Julliany L. Freire, Gabriela C. Sarmento, Italo Lutz, Bianca Bentes, Victoria J. Isaac
Summary: This study evaluated the population structure and reproductive biology of Southern red snapper in the Amazon reef area of Brazil. The results showed that Southern red snappers can reproduce throughout the year, with the reproductive peak coinciding with the increase in the water discharge of the Amazon River. The fishing gear used by the commercial fleet showed poor selectivity and resulted in a high percentage of juvenile snappers being caught, contributing to the decline of the stock.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Multidisciplinary Sciences
Francielly Alcantara de Lima, Davi Butturi-Gomes, Marcela Helena das Neves Pantoja, Jussara Moretto Martinelli-Lemos, Atsushi Fujimura
Summary: The Amazon Continental Shelf is a complex habitat with high biodiversity. This study analyzed the composition of crab larvae and the influence of environmental parameters on their distribution. The results showed that the distribution of larvae is influenced by water salinity, and different families of larvae are found in different salinity levels.
Article
Environmental Sciences
Claudia Antonia Campos Rodrigues de Oliveira, Dulcideia da Conceicao Palheta, Diego Gomes Trindade, Tatiane Medeiros Rodrigues, Bianca Bentes
Summary: Corbicula fluminea, an Asian mussel, has invaded freshwater habitats worldwide, causing economic damage and the disappearance of native species. This study reports the first record of C. fluminea in the Carajas mosaic, Para, Brazil, a Federal Conservation Area. Collections were made in September and February 2021 and May 2022, with a total of 154 specimens collected. This new record extends the distribution of this species in South America and highlights the need for understanding the environmental and economic impacts it can cause, especially in protected areas.
Article
Environmental Sciences
Italo Lutz, Walter Hugo Diaz Pinaya, Mayra Nascimento, Wellington Lima, Evaldo Silva, Zelia Nunes, Bianca Bentes
Summary: In recent years, shark populations have experienced significant depletion worldwide. This study focused on analyzing the shark bycatch in the acoupa weakfish gillnet fisheries in Para, Brazil, from 1995 to 2007. The findings revealed a peak in shark bycatch between 1998 and 2000, which coincided with increased fishing effort and environmental variability. The study emphasized the importance of implementing measures to reduce bycatch and stressed the need for accurate fishery data and effective management practices to ensure shark species survival.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Fisheries
Suelly Fernandes, Larissa Pinheiro, Bianca Bentes
Summary: The reproductive dynamics of Genyatremus luteus were studied, particularly the factors of first maturation length (L-50) and reproductive period (gonadosomatic index, GSI, and relative condition factor, Kr), which were found to be influenced by rainfall. Monthly sampling in five areas (A1 to A5) from April 2016 to April 2017 using gill nets and fixed traps resulted in the capture of 331 specimens, with no significant difference in sex ratio distribution between months. Females were larger and heavier than males, and the means of Kr and GSI suggested a spawning period from June to September after a decrease in regional precipitation. The L-50 values were estimated as 15.13 cm for females, 14.29 cm for males, and 14.78 cm for both sexes. During the rainy season, the species exhibited breeding behavior in certain areas, while in the dry season, it focused on the growth and sheltering of juveniles and adults. This research provides valuable insights into the fishing management of a species that relies on diverse ecosystems for its life cycle.
Article
Ecology
Dalila Costa Silva, Ana Carolina Melo Rodrigues-Inoue, Francielly Alcantara de Lima-Pismel, Jussara Moretto Martinelli-Lemos, Marcelo Petracco
Summary: The aim of this study was to assess the environmental factors that modulate the spatiotemporal distribution of Petrolisthes armatus and analyze their population structure, dynamics, and secondary production in an Amazon estuary. It was found that crab density was positively correlated with salinity and negatively correlated with temperature. Factors such as dry season, eastern bank, lower estuary, larger rock substrate, and lower intertidal zone contributed to higher crab density. This study provides valuable insights into the population dynamics and ecological role of P. armatus in the Amazon estuary.
REGIONAL STUDIES IN MARINE SCIENCE
(2023)
Article
Fisheries
Maura da Silva Costa Furtado, Joaquim Carlos Barbosa Queiroz, Bianca Bentes, Edson Koiti Kudo Yasojima, Debora de Oliveira Thomaz, Larissa da Costa Pinheiro, Mauro Luis Ruffino, Victoria Isaac
Summary: The study analyzed fishery catches on the Lower Amazon River with regards to the hydrological cycle, temporal shifts in fishing effort, and the use of nets or lines in lakes and rivers. It found that the majority of catch landings were taken with gillnets in a lake environment. There was a significant decline in gillnet catches from both lakes and rivers over time, as well as fishing effort. The annual flood cycle had an impact on fishing productivity patterns in the region.
Article
Fisheries
Geilson Silva Tenorio, Israel Hidenburgo Aniceto Cintra, Paulo Jose de Oliveira Alves, Rauquirio Marinho da Costa, Tatiane do Nascimento Medeiros Rodrigues, Bianca Bentes
Summary: This study investigated the artisanal exploitation of Acetes paraguayensis stocks in Santarem, Brazil, and found that the matapi trap was the main method used for harvesting this species. The results of this study are important for developing conservation and management strategies as well as establishing farming protocols.
BOLETIM DO INSTITUTO DE PESCA
(2022)
Article
Zoology
Mayra Nascimento, Italo Lutz, Suelly Fernandes, Camila Cardoso, Tatiane Medeiros Rodrigues, Pedro Oliva, Bianca Bentes
Summary: Fish local knowledge is essential for species recognition and conservation strategies. In this study conducted in northern Brazil, semi-structured questionnaires were used to gather information from 28 fishers, leading to the identification of diagnostic information for the rapid identification of Mugilidae species. The fishers used both morphological and behavioral traits to distinguish between different species.
NEOTROPICAL ICHTHYOLOGY
(2022)
Article
Fisheries
Ualerson I. Peixoto, Adauto S. Mello-Filho, Bianca Bentes, Victoria J. Isaac
Summary: The purpose of this study was to understand the life cycle of brown shrimp along the Amazon Continental Shelf by studying the spatial and temporal trawl fleet activities. The findings suggest that the industrial trawl shrimp fleet closely follows shrimp migration patterns during different stages of their life cycle in terms of months, locations, and depths.
Article
Fisheries
Severiano Pereira Braz Neto, Antonio Marcos de Melo Xavier, Claudmilson Rodrigues De Mesquita, Laudiceia de Abreu Costa, Flavia Roseira dos Reis, Israel Hidenburgo Aniceto Cintra, Tommaso Giarrizzo, Bianca Bentes
Summary: Dams have significant impacts on the environment and local fishing practices, leading to the development of unique fishery systems and techniques. Using the Metier principle and a holistic approach, this study identified 14 fishing systems with distinct characteristics and four clearly distinguishable groups. Such studies are essential for establishing more effective practices based on the deficiencies found in different systems or groups.
BOLETIM DO INSTITUTO DE PESCA
(2021)
