Neotropical Ichthyology最新文献_第7页

Rocky reef fish biodiversity and conservation in a Brazilian Hope Spot region 巴西Hope Spot地区岩礁鱼类的生物多样性及其保护

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2022-0032

Augusto A. Machado, F. Moraes, A. Aguiar, M. Hostim-Silva, L. N. Santos, Á. Bertoncini

{"title":"Rocky reef fish biodiversity and conservation in a Brazilian Hope Spot region","authors":"Augusto A. Machado, F. Moraes, A. Aguiar, M. Hostim-Silva, L. N. Santos, Á. Bertoncini","doi":"10.1590/1982-0224-2022-0032","DOIUrl":"https://doi.org/10.1590/1982-0224-2022-0032","url":null,"abstract":"Abstract Coastal islands of Grande Rio, located south Rio de Janeiro and Maricá cities have been under multiple anthropogenic impacts. Despite these problems, these insular systems shelter a high diversity of fish species. Reef fishes are essential components of tropical marine coastal communities, also providing food and income for millions of people around the world. In this work, we generated an updated checklist from Cagarras Islands Natural Monument and surrounding areas based on fisheries data, literature records and multiple sampling techniques, including the Submersible Rotating Video technique, used for the first time in Brazil. We present an inventory of 282 fish species representing 91 different families, with 21 new records for the study area, including a non-native species (Heniochus acuminatus). In addition, our results show a moderate endemism level for the Brazilian province (approximately 6.0%), while 10.5% of species are assigned to one of IUCN’s threatened categories. Our efforts show the fish biodiversity scenario and their distribution on coastal islands more than 10 years after the Cagarras Islands Natural Monument establishment, reinforcing the importance of monitoring research programs for the management of this Marine Protected Area and surrounding waters, that play a key role for artisanal fisheries.","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"1 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67200181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The emerald green tetra: a new restricted-range Hyphessobrycon (Characiformes: Characidae) from the upper rio Juruena, Chapada dos Parecis, Brazil 巴西Chapada dos parrecis, Juruena，上部里约热内卢的翠绿四元:一种新的限定范围连枝苔藓(特征:连枝苔藓科)

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2021-0119

F. P. Dagosta, Thomaz Jefrey Seren, A. Ferreira, M. Marinho

引用次数: 2

A new species of Characidium (Characiformes: Crenuchidae) from the rio Doce basin, Brazil 文章标题巴西里约热内卢Doce盆地棘蝗属一新种(特征:棘蝗科)

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2021-0125

Leonardo Oliveira-Silva, S. A. D. Santos, Maridiesse Morais Lopes, A. Zanata

引用次数: 2

A new species of Knodus (Characiformes: Characidae), with deep genetic divergence, from the Mearim and Munim river basins, Northeastern Brazil, and evidence for hidden diversity in adjacent river basins 巴西东北部Mearim和Munim河流域一种遗传分化较深的胡桃木属新种(特征:胡桃木科)及其在邻近流域隐藏多样性的证据

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2021-0173

R. G. Aguiar, E. Guimarães, P. Brito, J. Santos, A. Katz, Luiz Jorge B. da S. Dias, L. F. Carvalho-Costa, F. Ottoni

引用次数: 4

A new genus of armored catfish (Siluriformes: Loricariidae) from the Greater Amazon, with a review of the species and description of five new species 文章题目大亚马逊河甲鱼一新属(甲甲鱼目:甲甲鱼科)，并对五新种的种类和描述作了评述

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2022-0002

R. Reis, P. Lehmann A.

引用次数: 3

Freshwater fishes of the Río de la Plata: current assemblage structure Río de la Plata的淡水鱼:现在的组合结构

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2021-0159

T. Maiztegui, A. Paracampo, Jorge Liotta, Eva Cabanellas, C. Bonetto, D. Colautti

{"title":"Freshwater fishes of the Río de la Plata: current assemblage structure","authors":"T. Maiztegui, A. Paracampo, Jorge Liotta, Eva Cabanellas, C. Bonetto, D. Colautti","doi":"10.1590/1982-0224-2021-0159","DOIUrl":"https://doi.org/10.1590/1982-0224-2021-0159","url":null,"abstract":"Abstract Few studies have addressed the composition of fish assemblages of the freshwater Río de la Plata (RdlP) and have only been limited to species lists gathered over the last two centuries. As such inventories have never been reviewed or validated by fish sampling, the richness and structure of RdlP fish assemblage are poorly known. Hence, we conducted an exhaustive literature review and a fieldwork in six coastal points of Argentina to update the species composition and determine the hierarchical structure of the fish assemblage. From the 206 species registered in the literature, 48 were not confirmed, 13 were absent, five were taken as synonymized species, 29 were supported by literature and 107 were confirmed; one was an established exotic species, and three were a non-established exotic species. The findings reported here suggest that the fish assemblage currently comprises 141 species, including four new records. Analysis of fieldwork data in number and weight of fish captured resulted in an assemblage hierarchical structure of five dominant, 22 frequent, and 45 rare species; 16 dominant, 11 frequent, and 45 rare taxa, respectively. These results could be used as baseline to monitor, manage, and preserve neotropical fish species in their southern distribution boundary.","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"1 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67199977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diversity, seasonal and diel distribution of snappers (Lutjanidae: Perciformes) in a tropical coastal inlet in the southwestern Gulf of Mexico 墨西哥湾西南部热带海岸入口内鲷鱼的多样性、季节和昼夜分布

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2022-0009

Luis Guillermo Constante-Pérez, M. Castillo-Rivera, A. Serrato-Díaz

{"title":"Diversity, seasonal and diel distribution of snappers (Lutjanidae: Perciformes) in a tropical coastal inlet in the southwestern Gulf of Mexico","authors":"Luis Guillermo Constante-Pérez, M. Castillo-Rivera, A. Serrato-Díaz","doi":"10.1590/1982-0224-2022-0009","DOIUrl":"https://doi.org/10.1590/1982-0224-2022-0009","url":null,"abstract":"Abstract Snappers are marine fishes, but juveniles of many species migrate to estuaries, using these systems as nursery areas. The purpose of this study was to know the environmental factors mainly related to the migration patterns of lutjanids in La Mancha lagoon inlet. During 19 months, 24-hour cycles were performed monthly, taking samples every two hours (442 samples). Environmental variables recorded in situ and with regional records such as rainfall, atmospheric temperature and day length were considered. Genetic barcoding (COI) was used to validate species identity. Significant differences were evaluated by PERMANOVA and a Canonical Correspondence Analysis was used to determine the importance of environmental variables. Six species were recorded and the most abundant showed significant differences among months, with migration patterns during the warm-rainy season. Day length, salinity and rainfall (two of them with regional incidence) were the variables significantly associated with the distribution of the species. The abundance of Lutjanus analis, L. jocu, and L. cyanopterus was inversely associated with the length of daylight and directly related to rainfall, while L. synagris and L. griseus showed segregation along a salinity gradient. Thus, migration patterns were mainly correlated with factors of regional coverage and greater seasonal influence.","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"1 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67199992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The main channel and river confluences as spawning sites for migratory fishes in the middle Uruguay River 主河道和河流汇合处为乌拉圭河中部洄游鱼类的产卵地

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2021-0094

M. L. G. Soares, M. V. Massaro, P. B. Hartmann, Samuel Elias Siveris, F. Pelicice, D. Reynalte‐Tataje

{"title":"The main channel and river confluences as spawning sites for migratory fishes in the middle Uruguay River","authors":"M. L. G. Soares, M. V. Massaro, P. B. Hartmann, Samuel Elias Siveris, F. Pelicice, D. Reynalte‐Tataje","doi":"10.1590/1982-0224-2021-0094","DOIUrl":"https://doi.org/10.1590/1982-0224-2021-0094","url":null,"abstract":"Abstract Evidence indicates that migratory fish reproduce in the middle Uruguay River, but the location of spawning sites remains unknown. To identify spawning sites in the basin, fish eggs and larvae were sampled monthly between October 2016 and January 2017. The sampling was carried out in three sections along the middle Uruguay River, covering two environments: the main channel and the mouth of tributaries (Comandaí, Ijuí, and Piratinim rivers). A total of 11,519 eggs and 3,211 larvae were captured, belonged to ten migratory species. Eggs and larvae of migratory fishes, were widely distributed, with predominance of segmented eggs, and larvae in yolk-sac and pre-flexion stages, with higher densities near the confluence with the Piratinim River. Larvae assemblages showed spatial variation, indicating that spawning sites differ among migratory species. This study provides new information about fish reproduction in the middle Uruguay River, revealing that migratory species spawn in different localities along the main channel and tributaries. This region may function as a critical site for fish reproduction, although it is currently threatened by the risk of hydropower expansion, emphasizing the need for measures that preserve their environmental conditions, hydrological connectivity and ecological functions.","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"1 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67199060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Recent dispersal and diversification within the clingfish genus Acyrtus (Actinopterygii: Gobiesocidae), with the description of a new western Atlantic species 在抱鱼属(放线鱼科:抱鱼科)内的最近扩散和多样化，并描述了西大西洋的一个新种

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2021-0137

Thais L. Quintão, J. L. Gasparini, J. Joyeux, L. Rocha, H. Pinheiro

{"title":"Recent dispersal and diversification within the clingfish genus Acyrtus (Actinopterygii: Gobiesocidae), with the description of a new western Atlantic species","authors":"Thais L. Quintão, J. L. Gasparini, J. Joyeux, L. Rocha, H. Pinheiro","doi":"10.1590/1982-0224-2021-0137","DOIUrl":"https://doi.org/10.1590/1982-0224-2021-0137","url":null,"abstract":"Abstract The genus Acyrtus (Gobiesocidae) is represented by four valid species distributed in the western Atlantic, and a recently described fifth species from the eastern Pacific. Here, we describe a new species endemic to Trindade Island, Brazil, and provide the first phylogenetic inference for the genus including all representatives. The new species can be distinguished from all its congeners by meristic and morphometric characters, as well as genetic differences. It presents low genetic diversity and, contrarily to other Trindade Island endemic fishes, shows no evidence of recent population growth. Our phylogeny reveals cryptic species and the paraphyletic nature of Acyrtus, which included Arcos nudus (western Atlantic) in a clade that separated from Arcos erythrops (tropical eastern Pacific) around 20 Mya. The three species found in the Brazilian Province, including one that remains undescribed, form a monophyletic clade which colonized the western South Atlantic around 2.6 Mya. Our study suggests that Arcos nudus should be placed in Acyrtus, and that the relationships among the closely-related Gobiesocidae genera Acyrtus (mostly from the Atlantic Ocean) and Arcos (from the Pacific Ocean) need further investigation.","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"44 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67199687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Trophic ecology and resource partitioning of Haemulidae species along the Northeastern Brazilian continental shelf 巴西东北大陆架海蛭科物种的营养生态学和资源分配

IF 1.7 4区生物学

Neotropical Ichthyology Pub Date : 2022-01-01 DOI: 10.1590/1982-0224-2022-0001

Ádamo Gabriel Cavalcanti Limeira, T. Frédou, Andrey Soares, A. Lira, François Le Loc´h, Girlene Fábia Segundo Viana, J. S. Rosa-Filho, Jean-Marie Munaron, F. Lucena‐Frédou

{"title":"Trophic ecology and resource partitioning of Haemulidae species along the Northeastern Brazilian continental shelf","authors":"Ádamo Gabriel Cavalcanti Limeira, T. Frédou, Andrey Soares, A. Lira, François Le Loc´h, Girlene Fábia Segundo Viana, J. S. Rosa-Filho, Jean-Marie Munaron, F. Lucena‐Frédou","doi":"10.1590/1982-0224-2022-0001","DOIUrl":"https://doi.org/10.1590/1982-0224-2022-0001","url":null,"abstract":"Abstract In the Southeastern Tropical Atlantic, Haemulidae family play an important role both environmentally, acting as a link between lower and higher trophic levels, and socioeconomically, being widely caught by artisanal fleets. This study aimed to describe the trophic ecology of three grunt species (Haemulon aurolineatum, H. plumierii and H. squamipinna) considering spatial, temporal and ontogenetic aspects, integrating stomach content and stable isotopes analysis. Sampling occurred in 26 stations along the Northeast of Brazil (04°– 09°S), in August 2015 and April 2017, using bottom trawling net. There was greater feeding intensity at night, at latitudes below 08°S and in the inner continental shelf. Higher values of δ¹⁵N were reported for H. aurolineatum and H. plumierii collected near coastline. The isotopic niche breadth indicated that H. aurolineatum has a narrower diet thanH. plumierii. For the three species, the trophic level ranged between three and four. Considering stomach content and isotopic niche, diet was similar comparing species. This trophic ecology pattern reveals a likewise use of the habitat, which may be essential for identifying priority areas for conservation on an ecosystem basis, especially in rich reef zones that are subject to several increasing pressures, such as those in Northeast Brazil.","PeriodicalId":19103,"journal":{"name":"Neotropical Ichthyology","volume":"1 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67199799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0