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dominant Macroalgae in Bahía de Cochinos, Matanzas, Cuba

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American Journal of Plant Sciences 2022年第6期13卷 797-814页

作者： Yusimí Alfonso Patricia González Sánchez Hansel Caballero Aragón Pedro Chevalier jhoana díaz-larrea Ruben Cabrera Acuario Nacional de Cuba La Habana Cuba Unidad Iztapalapa Departamento de Hidrobiología Universidad Autónoma Metropolitana Cd de México México Gabinete de Arqueología Oficina del Historiador de la Ciudad Habana Vieja Cuba

Spatial-temporal variations of macroalgae were analyzed in a study conducted in Cueva de Los Peces (CP) and Punta Perdiz (PP), two dive sites located on the eastern coast of Bahía de Cochinos. The most conspicuous species found from 3 to 20 m depths were present in the biotopes of ridges and shallow and deep terraces. Sampling was carried out in September 2014, and March and October 2016 by autonomous diving and direct methods. Qualitative visual censuses and quantitative analyzes were used to estimate the coverage (%) of the genera according to the AGRRA methodology with the use of the 10 m linear transect and quadrats as the sampling unit. The first list of macroalgae for the area is offered that includes 49 taxa of which 10 were Rhodophyta, 10 Ochrophyta (Phaeophyceae), and 29 Chlorophyta. The dominant genera during the study period were Halimeda, dictyota, Lobophora, and Udotea. Spatial differences were found regarding the specific composition. Temporal variations were evidenced in terms of the relative abundance of the genera present, which reveals temporal changes in the qualitative structure, where some species replace others. The information obtained is pioneering and can serve as a comparative baseline for future monitoring of the area.

关键词： Cuba Macroalgae Spatial-Temporal Variations Species List

Population dynamics of Colonizing Fauna and Its Effect on Growth Rates of the Farmed Red Alga Alsidium triquetrum (S. G. Gmelin) Trevisan

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Natural Science 2022年第2期14卷 42-55页

作者： Ruben Cabrera Arsenio J. Areces jhoana díaz-larrea Sunil Kumar Sahu Juan Ricardo Cruz-Aviña Laura G. Nuñez García Gabinete de Arqueología Oficina del Historiador de la Ciudad Habana Vieja Cuba Instituto de Geografía Tropical Ministerio de Ciencia Tecnología y Medio Ambiente Municipio Playa Ciudad Habana Cuba departamento de Hidrobiología Universidad Autónoma Metropolitana Unidad Iztapalapa CBS Cd de México México State Key Laboratory of Biocontrol Guangdong Key Laboratory of Plant Resources School of Life Science Sun Yat-Sen University Guangzhou China Facultad de Medicina Veterinaria y Zootecnia BUAP Laboratorio de Medicina de la Conservación Licenciatura en Medicina Veterinaria y Fauna Silvestre Km. 7.5 Carretera Ca&ntilde ada Morelos El Salado Tecamachalco Puebla Mexico

Herbivores can drastically alter the morphology of macroalgae by directly consuming tissue and by inflicting structural wounds. Macroalgae host abundant and diverse epibiont communities, the dynamics of which tend to be mostly unknown in space and time. As the cultivation of macroalgae gains momentum worldwide, it is key to measure how epibionts could affect algal performance. We examined the epibiont community associated with farmed Alsidium triquetrum, a red macroalga with growing pharmacological interest. Measurements were conducted over two independent 60-day periods, one in summer and one in winter. Epibionts showed different patterns of succession in both seasons. Crustaceans, mainly amphipods, showed the highest overall density, with deleterious effects on daily growth rates of A. triquetrum in winter. Adverse effects as a function of epibionts were not detected in summer. A. triquetrum is a perennial alga. However, its performance as a crop in the nearshore can be significantly affected by the epibiont community structure that persists in winter. Amphipods and ascoglossan molluscs were risk factors in the mariculture of this agarophyte. In winter, they can destroy plants when they reach more than five individuals per gram of fresh biomass. Results highlight that commercial farming of A. triquetrum would be successful if grown throughout the summer.

关键词： Cultivation Epifauna Macroalgae Macroinvertebrates Seaweed Mariculture

New Records of Marine Macroalgae on the Caribbean on Coast of Costa Rica

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American Journal of Plant Sciences 2019年第10期10卷 1708-1728页

作者： Rubén Cabrera jhoana díaz-larrea Schery Umanzor Gabinete de Arqueologia Oficina del Historiador de la Ciudad Habana Vieja Cuba departamento de Hidrobiología Universidad Autónoma Metropolitana-Iztapalapa Ciudad de México México department of Ecology & Evolutionary Biology University of Connecticut Stamford CT USA.

The results obtained in this study highlight that further the macroalgae diversity in this region is even higher than what is reported to date. Here we present eight new records of marine macroalgae collected from the Caribbean coast of Costa Rica between March 2011 and May 2019. The morphological characteristics of Bryocladia cuspidata, Ceratodictyon variabile, Gracilaria hayi, Padina boergesenii, Zonaria tournefortii, Sargassum furcatum, Chaetomorpha aerea, and Bryopsis pennata var. secunda are described. The genera Bryocladia and Zonaria are reported for the first time for this region.

关键词： New Records Caribbean Sea Costa Rica

Kappaphycus alvarezii(Rhodophyta): New Record of an Exotic Species for the Caribbean Coast of Costa Rica

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American Journal of Plant Sciences 2019年第10期10卷 1888-1902页

作者： Rubén Cabrera Schery Umanzor jhoana díaz-larrea Patricia G. Araújo Gabinete de Arqueologia Oficina del Historiador de la Ciudad Habana Vieja Cuba department of Ecology & Evolutionary Biology University of Connecticut Stamford CT USA departamento de Hidrobiología Universidad Autónoma Metropolitana-Iztapalapa Ciudad de México México Instituto de Biociências Universidad Sao Paulo Sao Paulo Brazil

Kappaphycus alvarezii, a red macroalgal species native to South-East Asia, has been introduced for commercial purposes to more than 20 tropical countries. In 2000, Panama became the first Central American country to develop its cultivation following a pilot-commercial approach. Twelve years after his introduction to Panama, the species was found to the south Caribbean coast. In the present study, we report the first record of K. alvarezii collected in Costa Rican waters. Genetic identification of the sample was performed with the mitochondrial marker cox2-cox3 intergenic spacer, and phylogenetic analyses showed that the sample collected grouped into a monophyletic clade with GenBank sequences from Vietnam, Indonesia, the Philippines, Brazil and Venezuela. Here we provide further description of its position with respect to other strains of K. alvarezii collected globally. Its possible route of entry to the Caribbean coast of Costa Rica is discussed. To date, it is possible to locate K. alvarezii in different areas away from the production fields which show its dispersion, and that the species is expanding;but more studies are needed to know the phase of colonization in which it is located because it is a combination of natural factors and human exploitation that determines the invasive potential of the species.

关键词： Carrageenophytes Cultivation Costa Rica dispersion Exotic Introduction

Influence of the Macronutrients N, P and K on the Agarophyte Alsidium triquetrum(S. G. Gmelin) Trevisan, during Experimental Culture

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American Journal of Plant Sciences 2021年第4期12卷 573-585页

作者： Ruben Cabrera Arsenio J. Areces jhoana díaz-larrea Laura Nuñez García J. Ricardo Cruz-Aviña Gabinete de Arqueología Oficina del Historiador de la Ciudad Habana Vieja Cuba Instituto de Geografia Tropical Ministerio de Ciencia Tecnología y Medio Ambiente Ciudad Habana Cuba Unidad Iztapalapa Departamento de Hidrobiología Universidad Autónoma Metropolitana Cd de México México departamento de Recursos Naturales Academia de Investigación y Ciencia Universidad Tecnológica de Calakmul Calakmul México

The knowledge of the nutritional requirements and their relation to the physiology of marine algae growth is key to incorporate new species into aquaculture, whose dynamics tend to be largely unknown. The use of Alsidium triquetrum in the pharmacological industry depends on its availability in the natural environment, occasionally scarce. As macroalgae cultivation gains momentum worldwide, it is important to know how the effects of nutrients are modulated in the thallus during cultivation. The linking of the relative growth rates (RGR) of A. triquetrum and their relation with the macronutrients N (nitrogen), P (phosphorus) and K (potassium) at the tissue level under culture conditions constitutes the main contribution of this article. P levels tend to decrease as the plant completes its development. Both the concentration of N and P are higher in the stipe for the month of July, N (25.31 ± 0.26) vs P (0.846 ± 0.02) period when the highest vegetative development is reached. The N and P modulate the patterns of the species’ development over the annual cycle, unlike K, which is not considered a limiting factor. When the temperature and lighting are not favorable for growth, the plant simply accumulates these compounds. As environmental conditions change, these stored compounds are actively used in their growth. The specimens with an initial weight of 50 g present the best accumulated biomass (RGR) throughout the annual cycle.

关键词： Alsidium triquetrum Culture Phosphorus Macronutrients Nitrogen Potassium Growth Rate

Two New Species of the Genus dictyota (Phaeophyceae: dictyotales) from the Mexican Caribbean

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American Journal of Plant Sciences 2015年第15期6卷 2492-2501页

作者： Jorge G. Lozano-Orozco Abel Sentíes Olivier de Clerck Kurt M. dreckmann jhoana díaz-larrea doctorado en Ciencias Biológicas y de la Salud Universidad Autónoma Metropolitana Iztapalapa México departamento de Hidrobiología Universidad Autónoma Metropolitana Iztapalapa México Phycology Research Group and Centre for Molecular Phylogenetics and Evolution Ghent University Ghent Belgium

during a molecular characterization of the genus dictyota J. V. Lamouroux (Phaeophyceae, dictyotales) along the Mexican coasts of the Gulf of Mexico and the Mexican Caribbean, using psbA and cox1 genes, it was found that two particular collections did not match with the sequences published for a total of 39 species of dictyota. For each gene, both collections diverged in high-uncorrected “p” distance values with respect to other related species. This high genetic divergence was corroborated by morphological analysis. Hence, we proposed dictyota mayae J. Lozano-Orozco & Sentíes and dictyota pedrochei J. Lozano-Orozco & Sentíes as new species.

关键词： Mexican Caribbean dictyota mayae sp. nov. dictyota pedrochei sp. nov. Molecular Phylogeny Taxonomy

Isolation and Characterization of 26 Microsatellite Loci for the Shortfin Silverside Fish Chirostoma humboldtianumValenciennes1835 (Atherinopsidae: Menidiinae) derived from Next Generation Sequencing and Their Cross-Amplification in Central Mexican Atherinopsids

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Open Journal of Genetics 2014年第5期4卷 355-361页

作者： Barriga-Sosa Irene de los Angeles Rosa María García-Martínez jhoana díaz-larrea Oscar Adrián Lozano Garza Francisco Javier García-de-León departamento de Hidrobiología Universidad Autónoma Metropolitana Iztapalapa México D.F. México Laboratorio de Genética y Biología Molecular Planta Experimental de Producción Acuícola Departamento de Hidrobiología Universidad Autónoma Metropolitana Iztapalapa México D.F. México Laboratorio de Genéticapara la Conservación Centro de Investigaciones Biológicas del Noroeste Instituto Politécnico Nacional La Paz México

The endemic silverside fish C. humboldtianum is of great ichtyologycal, economical and cultural relevance in central Mexico and it has been suggested that it is among a group of other “peces blancos”, the most ancestral species. Here we characterized a set of 26 microsatellite loci from the species in order to further assess population and phylogeographic issues that aid in evaluating their highly impacted populations. From 58 primer pairs tested on specimens from Villa Victoria dam (Rio Balsas Basin), 26 loci positively amplified on the species and cross-primed on specimens of the closely related and threatened Poblana alchichica, C. promelas and C. riojai. Loci resolved medium and high genetic variation (mean NA = 14.3, Sd = 9.38;mean HO & HE = 0.47, Sd = 0.32 and 0.58, Sd = 0.32, respectively) and it is expected that these polymorphic loci are also useful in studing threatened atherinopsid species.

关键词： Endemic Polymorphism Villa Victoria Poblana alchichica C. promelas C. riojai

Relationship of Trace Elements Concentration and Growth Rate in Alsidium triquetrum(Rhodophyta)

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Codon Usage of Chloroplast Gene rbcL in Laurencia sensu lato(Rhodophyta)species

American Journal of Plant Sciences（美国植物学期刊） 2023年第3期

作者： Arsenio J.Areces Ruben Cabrera jhoana díaz-larrea Ligia Collado-Vides

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Journal of Marine Science 2021年第4期3卷 1-16页

作者： Ruben Cabrera jhoana díaz-larrea Arsenio JAreces Laura Nuñez García JRicardo Cruz-Aviña Gabriela Vázquez Silva Gabinete de Arqueología Oficina del Historiador de la CiudadHabana ViejaCuba Universidad Autónoma Metropolitana Unidad IztapalapaCBSDepartamento de HidrobiologíaCd de MéxicoMéxico Instituto de Geografía Tropical Ministerio de CienciaTecnología y Medio AmbienteMunicipio PlayaCiudad HabanaCuba Universidad Tecnológica de Calakmul departamento de Recursos Naturales Academia de investigación y CienciaCampecheMéxico Universidad Autónoma Metropolitana Unidad XochimilcoDepartamento el Hombre y su AmbienteLaboratorio de Limnobiología y AcuiculturaCd de MéxicoMéxico ARTICLE

Recent advances in molecular biology make it possible to sequence not only genes or genomes,but also to understand codon *** the organelle genes of these organisms,a small set of preferred codons are used for encoding *** the first time,this paper treats the divergence of synonymous codon usage and its bias in the rbcL gene within the Laurencia complex of red *** observed that the synonymous codon preference biases in rbcL are large and differ among species.A clear distinction in codon usage between genera is evident:the genera dasya and delesseria use a set that fluctuated between 53 and 58 ***,in the genera Ceramium,Chondrophycus,Chlamydomonas,Chlorella,Laurencia s.s,Osmundea,and Palisada codon usage indicates a higher restriction fluctuating between 40 to 51 *** complex genera and other representative algae showed a defined composition pattern,with lower percentage values of NNC/G(7-24.9%).dasya and delesseria showed a selective pattern tendency because of high percentage values of NNC/G(54-55%).The estimated codon bias parameters were tested to infer systematic relationships and match suitable codons with the NNC/G codon *** analysis based on Codon Usage supports phylogenetic relationships between Chondrophycus,Palisada,Laurencia,Osmundea,and Yuzurua species.

关键词： Codon Laurencia sensu lato Systematics Rhodophyta Marine algae