First record of Pseudaeginella arraialensis (Amphipoda: Caprellidea) from the Gulf of Mexico

2020 ◽  
Vol 91 (0) ◽  
pp. 913151
Author(s):  
Ignacio Winfield ◽  
José M. Guerra-García
Keyword(s):  
Gulf Of Mexico ◽  
First Record

scholarly journals First record of Calliactis tricolor (Le Sueur, 1817) (Cnidaria, Actiniaria, Hormathiidae) in the Veracruz reef system, southwestern Gulf of Mexico

Check List ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 617-629
Author(s):  
José Luis Tello-Musi ◽  
Ricardo González-Muñoz ◽  
Fabián H. Acuña ◽  
Nuno Simões
Keyword(s):  
Coral Reef ◽  
Gulf Of Mexico ◽  
Benthic Community ◽  
First Record ◽  
Hermit Crabs ◽  
Tropical Atlantic ◽  
Sea Anemones ◽  
Southwestern Part ◽  
Symbiotic Relationships ◽  
Reef System

The sea anemone Calliactis tricolor (Le Sueur, 1817) is an ecologically important member of the benthic community in coastal and coral reefs of the tropical Atlantic, particularly for their propensity to establish mutualistic symbiotic relationships with hermit crabs. This species is presumably distributed throughout the Gulf of Mexico; however, it had never been recorded in the southwestern part of the Gulf. Here we document the first record of C. tricolor in 2 coral reef localities of the Veracruz reef system, Mexico, and update the number of species of sea anemones known for the region.

Morphological and molecular identification of Octopoda (Mollusca: Cephalopoda) paralarvae from the southern Gulf of Mexico

2021 ◽  
Author(s):  
Mariana L Santana-Cisneros ◽  
Rossanna Rodríguez-Canul ◽  
Jesús Alejandro Zamora-Briseño ◽  
Monica Améndola-Pimenta ◽  
Roxana De Silva-Dávila ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
First Record ◽  
Coi Gene ◽  
Octopus Vulgaris ◽  
Type I ◽  
Molecular Sequences ◽  
Molecular Approaches ◽  
Morphological Criteria ◽  
Southern Gulf Of Mexico ◽  
Genetic Sequences

Paralarvae (PL) are crucial to understanding the life cycle and population dynamics of cephalopods. Misidentification of species with similar morphology is a problem that hampers understanding of cephalopod composition and distribution. In this study, we used morphological and molecular approaches to carry out a comprehensive identification of Octopoda PL that inhabit two main areas (Tamaulipas and Yucatán) in the southern Gulf of Mexico (GoM). A total of 189 paralarvae were identified using morphological criteria. Of these, 52 PL were analyzed molecularly by sequencing the mitochondrial cytochrome c oxidase subunit I (COI) gene. We identified four species and five morphotypes. The molecular tools corroborated three of four species, while the molecular sequences of three out of four morphotypes indicated that they belong to three different species. All the genetic sequences had high similarities (99.3%–100%) with previous records. One species and one morphotype could not be sequenced because of unsatisfactory fixation; one morphotype remained as such after the molecular analysis. An identification tree was constructed for the species identified with the molecular approach. The species found off the Yucatán platform were Octopus vulgaris Type I, Octopus americanus, Macrotritopus defilippi, Amphioctopus burryi, A. cf. burryi, Octopus sp., and Callistoctopus furvus. The species identified off the Tamaulipas coast were Octopus insularis and M. defilippi. Paralarvae of O. vulgaris Type I and M. defilippi were the most abundant during 2016–2017. This study provides the first record of Octopoda PL in the southern GoM, including morphological descriptions and molecular sequences of the analyzed taxa.

scholarly journals Neonchocotyle violantei n. sp. (Monogenea, Hexabothriidae) from Pseudobatos lentiginosus (Rhinopristiformes, Rhinobatidae) of Yucatán, Gulf of Mexico

2018 ◽  
Vol 27 (1) ◽  
pp. 32-40 ◽  
Author(s):  
Guadalupe Quiterio-Rendon ◽  
Scott Monks ◽  
Griselda Pulido-Flores
Keyword(s):  
Gulf Of Mexico ◽  
Seminal Receptacle ◽  
Small Body ◽  
First Record

Abstract Neonchocotyle violantei n. sp. (Monogenea: Hexabothriidae) infects the gill of the Atlantic guitarfish, Pseudobatos lentiginosus (Rhinopristiformes, Rhinobatidae) from littoral waters of Celestún, Yucatán, Mexico. It is assigned to Neonchocotyle because it has, among other features, an asymmetrical haptor, a seminal receptacle, a smooth oötype, and an egg with two elongate filaments. It differs from Neonchocotyle pastinacae, the only congener, by having a small body (821 long by 315 wide, length to width = 2.6:1), two pairs of microhooks between the haptoral appendix suckers, extracaecal (submarginal) vaginal pores, and 5-9 testes. This is the first record of a species of Neonchocotyle in the Gulf of Mexico, the first monogenean reported from P. lentiginosus in Mexico and the second species of Hexabothriidae reported from Mexico.

scholarly journals FIRST RECORD OF THE GENUS HETERODINIUM (DINOPHYCEAE) FROM COASTAL WATERS OF THE COLOMBIAN CARIBBEAN

2016 ◽  
Vol 37 (1) ◽  
Author(s):  
Lina M. Ramos Ortega ◽  
Luís A. Vidal V.
Keyword(s):  
Gulf Of Mexico ◽  
Coastal Waters ◽  
Caribbean Sea ◽  
First Record ◽  
The Caribbean ◽  
First Time

Three species of the genus Heterodinium Kofoid are reported for the first time in coastal waters of the Colombian Caribbean. The identified species are Heterodinium rigdenae Kofoid, 1906, Heterodinium agassizii Kofoid, 1907 and Heterodinium angulatum Kofoid y Michener, 1911. Information about distribution of these species in the Caribbean Sea and the Gulf of Mexico is given.

scholarly journals First record and a new species of Euphrosynoplax (Crustacea: Pseudorhombilidae) from the southwestern Atlantic

2021 ◽  
Vol 61 ◽  
pp. e20216166
Author(s):  
Marcos Domingos Siqueira Tavares ◽  
William Ricardo Amâncio Santana
Keyword(s):  
New Species ◽  
Gulf Of Mexico ◽  
Deep Water ◽  
First Record ◽  
Southeastern Brazil ◽  
Southwestern Atlantic ◽  
Brachyuran Crab ◽  
First Time ◽  
A New Species

A new species of deep-water brachyuran crab, Euphrosynoplax dincao, from southeastern Brazil is described and illustrated. The genus Euphrosynoplax currently consists of two species, E. clausa Guinot, 1969, and E. campechiensis Vázquez-Bader & Gracia, 1991, both only known from the Gulf of Mexico. The new species can be easily separated from its northern counterparts by a suite of carapace and appendage characters. Euphrosynoplax campechiensis is recorded for the first time from the Caribbenan Sea (Guadeloupe and between Saint Kitts and Nevis).

scholarly journals Fluctuation and diversity of Hydromedusae (Hydrozoa, Cnidaria) in a highly productive region of the Gulf of Mexico inferred from high frequency plankton sampling

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7848 ◽  
Author(s):  
Sarah Pruski ◽  
Maria Pia Miglietta
Keyword(s):  
Gulf Of Mexico ◽  
First Record ◽  
Multivariate Regression Analysis ◽  
Future Climate Change ◽  
Galveston Bay ◽  
Climate Change Scenarios ◽  
Efficient Tool ◽  
Molecular Barcoding ◽  
Seasonal Factors ◽  
Peak Abundance

Hydrozoa medusae undergo blooms and seasonal fluctuations; however the drivers of such fluctuations are unknown. To understand how medusa populations fluctuate in response to seasonal factors such as temperature, salinity, dissolved oxygen, and chlorophyll a, and to enhance our taxonomic knowledge of Hydrozoa in Galveston Bay (TX), we performed frequent plankton sampling from September 2015 to September 2016. We collected 1,321 medusae in 190 sampling days. Using molecular barcoding and morphological analyses we identified 25 species, of which 21 are a first record for Galveston Bay and eight for the Gulf of Mexico. Daily medusa abundance is non-linearly related to temperature, with peak abundance estimated with multivariate regression analysis at approximately 21C. The role that temperature plays in driving medusa abundance has implications for future climate change scenarios, given that temperature in the Gulf of Mexico is expected to rise 4 °C by the end of the century. We also show that the biodiversity of the Galveston Bay and the Gulf of Mexico is underestimated and that molecular barcoding is an important and efficient tool to identify large number of medusae. We conclude that dense plankton sampling is necessary to capture both diversity and abundance of planktonic medusae.

scholarly journals First record and geographic range extension of the coccolithophore Scyphosphaera apsteinii Lohman, 1902 (Haptophyta: Pontosphaeraceae) from the Pacific coast of Mexico

Check List ◽  
2015 ◽  
Vol 11 (5) ◽  
pp. 1754 ◽  
Author(s):  
Francisco O. López-Fuerte ◽  
Ismael Gárate-Lizárraga ◽  
David A. Siqueiros-Beltrones ◽  
Ricardo Yabur
Keyword(s):  
Gulf Of Mexico ◽  
Type Species ◽  
Pacific Coast ◽  
First Record ◽  
Geographic Range ◽  
Central Pacific ◽  
The West ◽  
The Pacific ◽  
The Caribbean ◽  
First Time

The coccolithophorid Scyphosphaera apsteinii is here reported for the first time from waters off the west coast of the Baja California Peninsula. Scypho­sphaera apsteinii is the type species of the genus Scyphosphaera and had hitherto been recorded only in the Atlantic and Indian Oceans, the Gulf of Mexico, the Mediterranean, and the Caribbean Seas. Specimens were found in samples collected in nets off Isla de Guadalupe in January 2013. This recording thus extends the geographical distribution of S. apsteinii from the Central Pacific (Hawaii) to the Eastern Pacific (NW Mexico).

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