Marine red algae (Rhodophyta) of economic use in the algal drifts from the Yucatan Peninsula, Mexico

Phytotaxa ◽  
2019 ◽  
Vol 387 (3) ◽  
pp. 219 ◽  
Author(s):  
MARÍA LUISA NÚÑEZ RESENDIZ ◽  
KURT M. DRECKMANN ◽  
ABEL SENTÍES ◽  
MICHAEL J. WYNNE ◽  
HILDA LEÓN TEJERA

Red algae are the most conspicuous component in algal drifts that periodically arrive on the coasts of the Yucatan Peninsula. Given the presence of agars and carrageenans in their cell wall and the synthesis of secondary metabolites that act as antitumors or antioxidants, most of these species are highly valued in the international market. However, in this region of Mexico they are not used but represent a problem of waste from beaches. Our aim was to determine the composition of marine red algae of economic use in the algal drifts of the Yucatan Peninsula, providing brief descriptions, photographs that facilitate their identification and possible explanations for their causes and routes of origin. 13 samplings were carried out at 14 sites, collecting fresh and complete thalli from which the species of economic importance were described. 24 species distributed in six orders and seven families were identified. The most abundant families for both the number of species and the amount of biomass were Gracilariaceae (10 species), Rhodomelaceae (6 species) and Solieriaceae (3 species). The localities with the greatest diversity and biomass were those belonging to Campeche: Sabancuy (11 species), Punta Xen (14 species), Tortuga Bay (13 species) and Playa Bonita (13 species). From the present study we contributed six new records endemic to Campeche, including the first record of the genus Codiophyllum for the Western Atlantic Ocean. Our data on diversity, biomass, periodicity and growth rates of red algal drifts allow us to suggest that the Campeche and Yucatan drifts are a sustainable source of raw material.

Check List ◽  
2015 ◽  
Vol 11 (1) ◽  
pp. 1505 ◽  
Author(s):  
Fernando Alvarez

New records for 17 species of crustaceans from anchialine systems in the Yucatan Peninsula, Mexico, are presented. The records come from explorations in Dzilam de Bravo, Yucatan, and from Puerto Aventuras and the Nohoch Nah Chich and Ox Bel Ha cave systems near Tulum in Quintana Roo, Mexico. For five of the 17 species dealt with here, the records presented constitute the second time those species are reported after their original descriptions. For the alpheid shrimp Yagerocaris cozumel, we present the first record of the species for continental Yucatan and for the atyid shrimp Jonga serrei, the second record from Mexico. Depth data are provided for all species.


2002 ◽  
Vol 85 (2) ◽  
pp. 389-391 ◽  
Author(s):  
V. Hernández-Ortiz ◽  
P. Manrique-Saide ◽  
H. Delfín-González ◽  
L. Novelo-Rincón

Zootaxa ◽  
2019 ◽  
Vol 4711 (1) ◽  
pp. 51-76
Author(s):  
MÓNICA MARIEL ABARCA-ÁVILA ◽  
MARÍA TERESA HERRERA-DORANTES ◽  
IGNACIO WINFIELD ◽  
PEDRO-LUIS ARDISSON

A taxonomic checklist of sublittoral tanaidaceans from the north coast of the Yucatan Peninsula, southern Gulf of Mexico, is presented in this study; it includes notes on geographic distribution, habitat, and an identification key. The genus Cacoheterotanais and the species Cacoheterotanais rogerbamberi, Mesokalliapseudes macsweenyi, Pagurotanais largoensis, Parakonarus juliae, and Psammokalliapseudes granulosus have their known distribution range within the Gulf of Mexico expanded, and are considered new records; this increases the number of tanaidacean species to 23 for the southeastern Gulf, and to 87 for the entire Gulf of Mexico. 


2012 ◽  
Vol 11 (4) ◽  
pp. 927-935 ◽  
Author(s):  
Gabriela Heredia ◽  
Rosa Maria Arias-Mota ◽  
Rafael F. Castañeda-Ruiz ◽  
Marcela Gamboa-Angulo

Crustaceana ◽  
1995 ◽  
Vol 68 (1) ◽  
pp. 1-11 ◽  
Author(s):  
José Luis Villalobos-Hiriart ◽  
Elva Escobar-Briones

AbstractA new species of Nebalia is described from Ría Lagartos in the Yucatán Peninsula, Mexico, increasing the number of described species in this genus to 13. The species closely resembles a complex of species recognized for the tropical western Atlantic that will need further study. The importance of the shape of the denticles on the dorsal plconal segments 6 and 7 as a taxonomical character is discussed.


2022 ◽  
Vol 1 (1) ◽  
Author(s):  
Martha I. Vilchis ◽  
Kurt M. Dreckmann ◽  
Oscar E. Hernández ◽  
Carlos A. Palma Ortíz ◽  
María Luisa Núñez Resendiz ◽  
...  

Background. The Gracilariaceae is one of the most diverse and abundant families of marine red algae. Most species in this family exhibit high morphological variability and overlapping of characters. In the Yucatan Peninsula 30 species have been historically recorded, but the phylogenetic identity for many of them is still unknown. Questions: Is the current diversity of the family in the area overestimated? Studied species: Crassiphycus caudatus, C. corneus, C. usneoides, Gracilaria flabelliformis, G. hayi, G. cf isabellana, G. microcarpa, G. occidentalis, G. suzanneae, Gracilariopsis tenuifrons. Study site and dates: Campeche: km 33 carretera Champotón, Bahía Tortuga, Puente Xen Kan III, Punta Xen, Sabancuy, 2017, 2018; Yucatan: Puerto Sisal, Puerto Progreso, Puerto Chicxulub, Puerto Telchac, 2018; Quintana Roo: Playa 88, Xcalacoco, Punta Esmeralda, 2019. Methods. Phylogenetic analysis (with COI-5P and rbcL sequences), supported by DNA species delimitation methods, genetic distances and morphological comparisons, allowed us to molecularly identify the specimens collected. Results. The phylogenetic identity of 10 species of Gracilariaceae was confirmed, two of which are new records for the Mexican Atlantic: G. hayi and G. suzanneae. Conclusion. The study demonstrated that the molecular assessment has proved to be very useful for the diversity evaluation, thus, the future phylogenetic identifies for the rest of morphospecies recorded in the area will allow a better approximation of Gracilariaceae diversity species.


Zootaxa ◽  
2017 ◽  
Vol 4338 (1) ◽  
pp. 182
Author(s):  
ALEJANDRA GONZÁLEZ-MORENO ◽  
SANTIAGO BORDERA

The female of Labena madoricola González-Moreno & Bordera, 2015 is described and illustrated for the first time from material collected with Malaise traps in 2016 in the Biocultural Reserve Kaxil Kiuic, Yucatán, Mexico. Diagnostic characters to distinguish females of New World Labena are provided. New distribution records of Labena species in Yucatán Peninsula, are also reported. 


Mammalia ◽  
2020 ◽  
Vol 84 (2) ◽  
pp. 144-149
Author(s):  
Alan Cuxim-Koyoc ◽  
Israel Escalante-Avilés ◽  
Rosendo Aragón-Pech ◽  
Doris Pinto-Escalante ◽  
Enrique Reyes-Novelo ◽  
...  

AbstractAtypical colorations occur in different groups of vertebrates. The loss of melanin in the skin, hair and eyes is the result of an autosomal recessive genetic entity. It causes individuals to present with a white coloration of the skin and hair, as well as red eyes, known as albino. This manuscript documents the first record in Mexico of complete albinism in a marsupial, Didelphis virginiana, captured in the Yucatan peninsula.


2020 ◽  
Vol 57 (6) ◽  
pp. 2022-2024 ◽  
Author(s):  
Jorge Luis Hernández–Rodríguez ◽  
Rafael Perez-Pacheco ◽  
Alfonso Vásquez-López ◽  
Meret Chantal Mejenes–Hernández ◽  
Carlos Alejandro Granados–Echegoyen ◽  
...  

Abstract This report describes the presence of Aedes albopictus Skuse (Diptera: Culicidae) in Yucatan Peninsula and represents the first record of the Asian tiger invasive mosquito in Campeche State, southeastern Mexico. We collected specimens using 11,326 ovitraps put into houses of urban and rural areas, as part of the entomological surveillance by the local Ministry of Health from January 2019 to February 2020. We found Ae. albopictus in five of the 12 municipalities of Campeche (San Francisco de Campeche, Tenabo, Hecelchakán, Calkíni and Escárcega). We record 68 positive ovitraps and 226 Ae. albopictus larvae. This finding increases the number of mosquito species recorded in Campeche, Mexico, and possibly the potential for 22 arbovirus transmission.


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