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Introduction
Raquel Siccha currently works at the Department of Aquaculture, Instituto del Mar del Perú. Raquel does research in Evolutionary Biology, Marine Biology and Systems Biology. Their current project is 'Relações Filogenéticas e diversidade das espécies do gênero Mesonauta (Teleostei: Cichlidae) com base em dados morfológicos e moleculares'.
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Publications
Publications (43)
Northern Peru marks the end of an extensive coastal marine region: The Panama province, which is characterized by predominantly tropical and equatorial features and is home to the only rocky reefs known in Peruvian territory. This unique ecosystem could explain the presence of a diverse range of fish species. However, due to the difficulty of sampl...
Sawfishes (Pristidae) have been severely impacted by coastal development and unregulated fisheries and are considered Critically Endangered by the IUCN Red List. Environmental DNA (eDNA) analyses have shown potential for monitoring elasmobranch species, with various studies focusing on using species-specific approaches to detect Pristis species. Ho...
Specimens of Caranx sexfasciatus (Bigeye trevally) were collected from northern and central Peru between 2021 and 2023, marking the first confirmed record of this species in Peruvian waters. This study represents a significant extension of its known range, previously reported only as far south as Ecuador. Morphological and molecular analyses were c...
The electric rays belonging family Narcinidae are a cosmopolitan group, which has come under increasing scrutiny in relation to the taxonomic composition of the family and its phylogenetic position within the order Torpediniformes. Phylogeographic inferences can provide important insights into the present-day distribution of the narcinid species, a...
The electric rays belonging family Narcinidae are a cosmopolitan group, which has come under increasing scrutiny in relation to the taxonomic composition of the family and its phylogenetic position within the order Torpediniformes. Phylogeographic inferences can provide important insights into the present-day distribution of the narcinid species, a...
Para esta evaluación se realizó una prospección para la colecta de ejemplares en base a su distribución histórica según la bibliografía e información de los locales in situ. Esta información se complemento con revisión de etiquetas herbarios digitales de las bases de datos como The Macroalgal Herbarium Consortium Portal y el herbario Jepson de la U...
Se realizaron análisis morfológicos y genéticos para determinar la identidad taxonómica de 42 ejemplares de invertebrados, capturados durante el Crucero de evaluación poblacional de merluza y otros demersales (Cr. 1905-06) efectuado en otoño 2019. Se revisaron las características diagnósticas para la identificación taxonómica tradicional de las esp...
The taxonomic status of butterfly rays within the genus Gymnura remains a subject of ongoing debate among researchers. Some authors recognize up to five valid species for the Americas, while others considered several to be synonyms, which has posed a persistent challenge. We aimed to shed light on this complexity by employing molecular operational...
The genus Urotrygon comprises small‐ to medium‐sized endemic round rays on the American continent and has undergone several synonymization processes. Here, we used an integrative taxonomic approach, including meristic, morphometric, and mtDNA analyses, to resolve the particularly intricate relationship among Urotrygon munda Gill, 1863, Urotrygon ch...
Gymnurid rays are found in tropical, subtropical and temperate regions around the world, where they are associated with sandy or muddy bottoms in coastal areas, being easily distinguished from other rays by the width of the disc. In recent years, the systematics of this family have been revised extensively. However, there has been no comprehensive...
Apple snails of the genus Pomacea Perry, 1810 (Mollusca: Caenogastropoda: Ampullariidae) are native to the Neotropics and exhibit high species diversity, holding cultural and ecological significance as an important protein source in Peru. However, most genetic studies in Pomacea have focused mostly on invasive species, especially in Southeast Asia,...
DNA barcoding is a powerful tool to identify species using nucleotide differences found in the cytochrome oxidase I mitochondrial gene between species. Since it was proposed, several projects are promoting the construction of a DNA barcode library for all eukaryotes. DNA barcoding in conjunction with single-gene species delimitation methods have be...
Apple snails of the genus Pomacea (Mollusca: Caenogastropoda: Ampullariidae) are native to the Neotropics and exhibit high species diversity. They hold cultural and ecological significance, serving as an important protein source in Peru. However, this genus has also received broad interest worldwide due to its invasive capacity, especially in South...
The Yarinacocha lake is an emblematic ecosystem of the Peruvian Amazon, representing the main point of fish landing and a tourist attraction in the city of Pucallpa. The wide fauna diversity in this area has made it the target of various studies, although for fish species most of them were focused on commercial species. In this work, we carried out...
Andesiops peruvianus (Ulmer, 1920) is a small minnow mayfly with a distribution throughout the Andes Mountains, mainly in lotic environments. In recent years, the taxonomic status of the species has been shifting, even finding out molecular and morphological evidence to consider it as a cryptic species. In this work, we collected seven specimens of...
This publication is framed in the project “Molecular identification of DNA of the ichthyological diversity of the marine, mangrove and continental environments of the department of Tumbes”, which was financed by FONDECYT – CONCYTEC in 2016, through the Agreement Award No. 192-2015-FONDECYT-DE.
El objetivo de esta investigación fue determinar tasas de crecimiento y supervivencia, así como rendimiento en las etapas de engorde de la ostra S. prismatica en sistema de cultivo suspendido en función de los cambios estacionales de algunos parámetros oceanográficos (temperatura, salinidad y clorofila-a). En febrero 2019, se instaló un long line e...
DNA barcoding has been used successfully in fish species identification and cryptic diversity detection, expanding knowledge about Neotropical ichthyofauna. Yarinacocha is a oxbow lagoon, which seasonally forms part of the Ucayali River, a tributary of the Amazon River. It is an important area for tourism, commercial fishing, and the extraction of...
Mulinia lateralis is a native bivalve from the Western Atlantic Ocean, distributed from the Gulf of Saint Lawrence in Canada to Yucatan in Mexico. Based on morphological and genetic data of specimens collected in shrimp farms, in this work, we confirm the presence of M. lateralis in the Gulf of Guayaquil, Ecuador. Presence and its consequences of t...
The Labridae is a species-rich family of colorful fishes distributed globally in different habitats. Polylepion cruentum was described based on type material collected from the Gulf of California, and Quepos, Pacific coast of Costa Rica. It has since been reported from several other localities, including Mexico to Nicaragua and the Cocos Island. Re...
Angel sharks are distributed worldwide in tropical to subtropical waters. Across the Eastern Pacific Ocean (EPO), two valid species are reported: The Pacific angelshark Squatina californica and the Chilean angelshark Squatina armata; however, there is still uncertainty about their geographic distribution, mainly along the northern Peru coast where...
Centropomus Lacépède, 1802 comprises 13 species of the fishes popularly knows as snooks, distributed in both Atlantic and Pacific coasts of America. Despite several studies on the group, conflicting taxonomic classifications still exist, including overlapping diagnostic characters, rendering species diagnoses extremely difficult. Herein, we review...
The Southeast Pacific comprises two Large Marine Ecosystems, the Pacific Central-American Coastal and the Humboldt Current System; and is one of the less well known in the tropical subregions in terms of biodiversity. To address this, we compared DNA barcoding repositories with the marine biodiversity species for the Southeast Pacific. We obtained...
The largetooth sawfish (Pristis pristis) is listed as Critically Endangered on the IUCN Red List (Kyne et al. 2013). This species has been recorded in the Eastern Tropical Pacific, where its range has been described as extending from Mazatlan, Mexico, to northern Peru (Chirichigno & Cornejo 2001). Recent research efforts suggest that largetooth saw...
The genus Menticirrhus is widely distributed in the Neotropical region, where its species are common and abundant in shallow coastal waters and estuaries. The diversity, biogeography, and evolutionary relationships of the Menticirrhus species are still poorly known, due primarily to the difficulty of differentiating the species, given the broad sim...
RESUMEN Robles J, Cisneros P, Siccha-Ramirez R. 2020. Reproducción y cultivo de ostra nativa Striostrea prismatica (Gray, 1825). Tumbes, Perú. Inf Inst Mar Perú. 47(1): 5-14.-En la Región Tumbes, a pesar de su biodiversidad y condiciones para la acuicultura solo se cultiva langostino; el descenso de los desembarques de los principales recursos hidr...
El Perú es un país megadiverso que destaca por su biodiversidad de peces, entre ellos los del manglar de Tumbes. Este ecosistema se encuentra amenazado por diversas causas, una de ellas es la introducción de especies invasoras. La investigación se realizó entre junio de 2016 y agosto de 2018, tuvo como objetivo identificar, mediante la técnica de A...
Los peces venenosos y tóxicos forman parte de la riqueza en biodiversidad del Perú, sus venenos y toxinas contienen metabolitos que pueden emplearse para producir sustancias farmacológicas. La investigación tuvo como objetivo identificar, mediante ADN barcoding, las especies de peces venenosos y tóxicos en el manglar de Tumbes. Se recolectaron 46 e...
RESUMEN Robles J, Siccha-Ramirez R, Cisneros P. 2019. Acondicionamiento, evaluación de dietas comerciales para crecimiento en cautiverio de juveniles del mero Mycteroperca xenarcha Jordan, 1888. Tumbes, Perú. Bol. Inst Mar Perú. 34(1): 115-127.-Se evaluó el acondicionamiento al cautiverio y el crecimiento de juveniles de Mycteroperca xenarcha emple...
The population of Mobula birostris (“giant manta ray”) found in the waters of northern Peru and Ecuador is believed to be the largest in the world (Harding & Beirwagen, 2009). This species is considered to be the largest within the group of manta rays, as they attains at least 670 cm disc width (reported to 910 cm) (White et al., 2006) and there is...
The pearly razorfish Xyrichtys novacula (Linnaeus, 1758) is a sedentary benthic species distributed in both sides of the Atlantic Ocean and in the Mediterranean Sea. Previous cytogenetic analysis reported different diploid numbers in samples from Italy, Venezuela and Brazil. This research aims to test the hypothesis that samples from American Atlan...
A combination of a RADseq method (ddRAD) with long read high throughput sequencing (Roche 454) was tuned up in order to identify and validate a set of SNPs useful for gene diversity analysis in two important South American commercial tuna (Thunnus albacares and Scomberomorus brasiliensis). A total of 11 and 21 individuals of T. albacares and S. bra...
The Mugil curema species complex (Pisces, Mugilidae): a new karyotype for the Pacific white mullet mitochondrial lineage. Comparative Cytogenetics 11(2): 225–237. https://doi. Abstract Recent molecular phylogenetic analyses have shown that the Mugil curema Valenciennes, 1836 species complex includes M. incilis Hancock, 1830, M. thoburni (Jordan & S...
The Thomas sea catfish is characterized by a highly variable parietosupraoccipital process, which has been recognized as intraspecific variation or phenotypic plasticity. On the basis of this variation, three nominal species have been described, with two of them currently considered to be junior synonyms. Here, the Notarius grandicassis species com...
The Atlantic goliath grouper, Epinephelus itajara , is a critically endangered species, threatened by illegal fishing and the destruction of its habitats. A number of other closely related grouper species found in the western Atlantic are also fished intensively. While some countries apply rigorous legislation, illegal harvesting followed by the fa...
Cytogenetic and molecular analyses enabled identification of two cytotypes among individuals of the spotted scorpion fish Scorpaena plumieri from Margarita Island, Venezuela. Cytotype 1 was characterized by 48 subtelo-acrocentric chromosomes and fundamental number (number of chromosome arms; FN) equalled 48, while cytotype 2 was characterized by tw...
Currently, seven valid species are recognized in the genus Peprilus. Found from United States to Argentina, Peprilus paru has a complex nomenclatural history, with seven junior synonyms, three from North America and four from South Amer-ica. As there has been no recent research, it remains unclear whether species representatives in the north-south...
Analysis of morphological, molecular and cytological data helped to define and more precisely characterize the species
of Mugil from the Atlantic coasts of South Caribbean and South America, allowing a correction of prior misidentifications
and distributional ranges. A new species from Venezuela is described and all the species from the area are re...
The genus Pterois includes nine valid species, native to the Red Sea and Indian Ocean throughout the Western Pacific. P. volitans and P. miles are native to the Indo-Pacific, and were introduced into Florida waters as a result of aquarium releases, and have been recently recognized as invaders of the Western Atlantic and Caribbean Sea (Costa Rica t...
For many decades only two species of seahorses were recognized from Brazil: Hippocampus reidi Ginsburg, 1933, the long snout seahorse, and H. erectus Perry, 1810, the lined seahorse. The presence of a possible third species, recognized in 2002, brought about the need for a broad revision of the genus in Brazilian waters. A total of 335 specimens of...
The abundance and wide distribution of mullets in the tropical, subtropical, and temperate regions of all continents make
them a very important commercial species in fisheries and aquaculture of many regions in the world. However, the similar
morphology among several species that inhabit all oceans makes it difficult to accurately determinemorpholo...
The Atlantic goliath grouper is a critically endangered species that inhabits estuarine and reef environments and is threatened primarily by fishing activities and habitat destruction. Despite the urgent need for protection, its genetic conservation status remains unknown. The aim of the present study was to evaluate the gene flow among the populat...
This study reports the description of the karyotype of Mugil incilis from Venezuela. The chromosome complement is composed of 48 acrocentric chromosomes, which uniformly decrease in size. Therefore, the homologues can not be clearly identified, with the exception of one of the largest chromosome pairs, classified as number 1, whose homologues may s...
