scholarly journals Helminth fauna of Scomberomorus sierra (Actinopterygii: Scombridae) in southeastern Gulf of California, Mexico

2021 ◽  
Vol 58 (4) ◽  
pp. 403-407
Author(s):  
N. Y. Bárcenas de los Santos ◽  
F. N. Morales-Serna ◽  
R. M. Medina-Guerrero ◽  
V. Hernández-Covarrubias ◽  
A. Oceguera-Figueroa ◽  
...  
Keyword(s):  
Gulf Of California ◽  
Pacific Coast ◽  
Adult Stage ◽  
Helminth Fauna ◽  
Mexican Pacific ◽  
Mean Intensity ◽  
Monogenean Species ◽  
The Pacific ◽  
Parasitic Worms ◽  
Prevalent Species

Summary From January to May 2015, a sample of 50 individuals of the Pacific sierra Scomberomorus sierra Jordan and Starks, 1895 captured off Mazatlán (southeastern Gulf of California, Mexico) were reviewed for helminths. A total of 6, 255 parasitic worms belonging to 11 species (9 in adult stage and 2 larvae) were obtained. Trematoda was the best represented group with 6 species of Didymozoidae Monticelli, 1888 and 1 of Bucephalidae Poche, 1907. In addition, 2 monogenean species and 2 of Nematoda were collected. In this study, the first molecular sequences for didymozoid species in Mexico were generated, and for Glomeritrema sp. at worldwide level. The most prevalent species were Didymocylindrus sp. (92 %) and Didymocystis scomberomori (MacCallum & MacCallum, 1916) (88 %), whereas the monogenean Thoracocotyle crocea MacCallum, 1913 reached the highest value of mean intensity (75.2). The coincidence between the helminthological composition established in our study and that reported for the same scombrid in 4 localities from the Mexican South Pacific (sharing 10 species) suggests that this group of species persistently parasitize S. sierra throughout its distribution along the Mexican Pacific coast; furthermore, due to the richness of didymozoids and the affinity of Thoracocotylidae species for S. sierra, both groups can be considered typical parasites of this fi sh.

Studies on the Helminth Fauna of Japan Part 57. Nematodes of Fishes, III

1961 ◽  
Vol 35 (S1) ◽  
pp. 217-228 ◽  
Author(s):  
Satyu Yamaguti
Keyword(s):  
New Species ◽  
Sea Of Japan ◽  
Pacific Coast ◽  
Helminth Fauna ◽  
Marine Biological Laboratory ◽  
The Pacific ◽  
The World ◽  
Inland Sea Of Japan ◽  
A New Species ◽  
Marine Laboratory

It is my greatest pleasure and honour to contribute a part of the series of my studies on the helminth fauna of Japan in honour of Professor R. T. Leiper, one of the most distinguished helminthologists in the world. The material on which the present paper is based was collected at the Tamano Marine Laboratory of Okayama University on the Inland Sea of Japan except for a new species of Raphidascaroides which was taken by Mr. T. Yamamoto at the Marine Biological Laboratory, Kyoto University, on the Pacific coast of Wakayama Prefecture. Acknowledgments are due to the staff of the Tamano Marine Laboratory and also to Mr. Yamamoto for their generous supply of the material.

A revision of the genus Mycale (Poecilosclerida: Mycalidae) from the Mexican Pacific Ocean

2010 ◽  
Vol 79 (4) ◽  
pp. 165-191 ◽  
Author(s):  
José L. Carballo ◽  
José A. Cruz-Barraza
Keyword(s):  
Pacific Ocean ◽  
Pacific Coast ◽  
Type Material ◽  
Mexican Pacific ◽  
East Pacific ◽  
The Pacific ◽  
Taxonomic Studies ◽  
Species Descriptions ◽  
First Time

Knowledge about the sponge fauna from the Mexican Pacific Ocean has increased substantially in recent years, but most of these modern taxonomic studies have been focused on hadromerids. The aim of this study was to contribute to the knowledge of the order Poecilosclerida. At present, seven species of Mycale have been described or recorded from the Pacific coast of Mexico, but only three of them are considered valid: M. contax, M. cecilia and M. aff. magnirhaphidifera. After a revision of the material collected during the last eight years throughout the East Pacific coast of Mexico, along with the type material, and the literature available, eight species of Mycale are considered valid, three of them; M. magnitoxa sp. nov., M. dickinsoni sp. nov., and M. ramulosa sp. nov., are proposed as new to science. In addition, M. adhaerens is reported for the first time from the Mexican Pacific Ocean. Another Mycale-species that was identified was M. psila, which constitutes its seconLamberd record for the Mexican Pacific Ocean. The systematic, distribution and detailed species descriptions are based on newly collected material and previous descriptions from the literature.

New records of benthic hydroids (Cnidaria: Hydrozoa) from the coast of Oaxaca, Mexico

Zootaxa ◽  
2018 ◽  
Vol 4455 (3) ◽  
pp. 454 ◽  
Author(s):  
KARLA J. HUMARA-GIL ◽  
CHRISTOPHER CRUZ-GÓMEZ
Keyword(s):  
Pacific Coast ◽  
New Records ◽  
Mexican Pacific ◽  
Geographic Ranges ◽  
The Pacific

Hydroids of the Pacific coast of Mexico have been little studied. For the coast of Oaxaca, only five papers provide information on species of the region, with some records included in those publications being questionable. Seven species, Pennaria disticha, Clytia linearis, Clytia cf. gracilis, Obelia dichotoma, Ventromma halecioides, Dynamena crisioides and Tridentata turbinata, were discovered during the study and are reported herein. Of these species, Pennaria disticha and Tridentata turbinata are new records for the Mexican Pacific coast, and Clytia linearis and Ventromma halecioides are new records for Oaxaca. Geographic ranges of other hydroids, recorded in earlier studies, are expanded.

scholarly journals CRUSTACEOS DECAPODOS DEL PACIFICO COLOMBIANO: LISTA DE ESPECIES Y CONSIDERACIONES ZOOGEOGRAFICAS

2016 ◽  
Vol 21 ◽  
Author(s):  
Rafael Lemaitre ◽  
Ricardo Alvarez León
Keyword(s):  
Gulf Of California ◽  
Pacific Coast ◽  
Marine Species ◽  
Eastern Pacific ◽  
Nominal Species ◽  
Review Of The Literature ◽  
Tropical Eastern Pacific ◽  
The Pacific ◽  
History Of ◽  
The Caribbean

The Pacific coast of Colombia has been poorly explored, and its fauna is one of the least known in the tropical eastern Pacific. Although knowledge of the decapod fauna from this coast has recently increased, the information is scattered in numerous sources. A review of the literature showed that 378 decapods have been reported from this coast, including the islands of Gorgona and Malpelo. The numbers of species are distributed as follows; Dendrobranchiata, 18; Caridea,79; Thalassinidea, 13; Palinura, 6; Anomura, 61; and Brachyura, 201 .Twenty-seven species are known exclusively from the Colombian coast, three of which are endemic to the islands of Malpelo or Gorgona. A list of nominal species is presented, including information on distribution, important references, and synonyms under which the taxa have been reported for this coast. A summary of the history of explorations of the Pacific coast of Colombia as it relates to decapods, is presented. Zoogeographic affinities are briefly discussed for the marine species based on published distributions. Affinities are greatest with the Gulf of California (51.8%), followed by the Galápagos (28.6%), the Indo-Pacific (8.8%), and the Caribbean- Atlantic (7.7%).

scholarly journals Oceanic adults, coastal juveniles: tracking the habitat use of whale sharks off the Pacific coast of Mexico

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3271 ◽  
Author(s):  
Dení Ramírez-Macías ◽  
Nuno Queiroz ◽  
Simon J. Pierce ◽  
Nicolas E. Humphries ◽  
David W. Sims ◽  
...  
Keyword(s):  
Coastal Waters ◽  
Gulf Of California ◽  
Pacific Coast ◽  
Early Morning ◽  
Eastern Pacific Ocean ◽  
Archival Tags ◽  
The Pacific ◽  
Habitat Differences ◽  
Frontal Zones ◽  
Whale Sharks

Eight whale sharks tagged with pop-up satellite archival tags off the Gulf of California, Mexico, were tracked for periods of 14–134 days. Five of these sharks were adults, with four females visually assessed to be pregnant. At least for the periods they were tracked, juveniles remained in the Gulf of California while adults moved offshore into the eastern Pacific Ocean. We propose that parturition occurs in these offshore waters. Excluding two juveniles that remained in the shallow tagging area for the duration of tracking, all sharks spent 65 ± 20.7% (SD) of their time near the surface, even over deep water, often in association with frontal zones characterized by cool-water upwelling. While these six sharks all made dives into the meso- or bathypelagic zones, with two sharks reaching the maximum depth recordable by the tags (1285.8 m), time spent at these depths represented a small proportion of the overall tracks. Most deep dives (72.7%) took place during the day, particularly during the early morning and late afternoon. Pronounced habitat differences by ontogenetic stage suggest that adult whale sharks are less likely to frequent coastal waters after the onset of maturity.

First record of Plakortis Schulze (Porifera: Homosclerophorida) from the Northeast Pacific coast, with the description of Plakortis albicans sp. nov.

Zootaxa ◽  
2005 ◽  
Vol 868 (1) ◽  
pp. 1 ◽  
Author(s):  
JOSÉ A. CRUZ-BARRAZA ◽  
JOSÉ L. CARBALLO
Keyword(s):  
Pacific Coast ◽  
First Record ◽  
Single Class ◽  
Mexican Pacific ◽  
Northeast Pacific ◽  
The Pacific ◽  
Drainage Canals ◽  
Cryptic Habitats ◽  
East Pacific Ocean ◽  
A New Species

A new species of Plakortis Schulze, 1880 from the Pacific coast of Mexico is described, which constitutes the first record of the Plakortis genus in the Northeast Pacific coast, and the first record of Homosclerophorida in the Mexican Pacific coast. Plakortis albicans sp. nov. is characterized by its white or ivory color, by a surface sculpted by subectosomic drainage canals, and by the morphological details of its skeleton, such as the presence of diods and triods in one single class, and a tangential alveolar ectosomal skeleton formed mostly by smaller diods. The only species known in the genus Plakortis from the East Pacific Ocean is Plakortis galapagensis Desqueyroux-Faúndez & van Soest, 1997, which differs from Plakortis albicans sp. nov. mainly by having diods in two distinct size classes. So far, P. albicans is only known in one locality (Mazatlán Bay), where it is relatively abundant in cryptic habitats such as under rock.

Records of mud shrimps (Crustacea: Decapoda: Axiidea and Gebiidae) from Pacific Mexico

2013 ◽  
Vol 94 (2) ◽  
pp. 369-388 ◽  
Author(s):  
Manuel Ayón-Parente ◽  
Michel E. Hendrickx ◽  
Eduardo Ríos-Jara ◽  
José Salgado-Barragán
Keyword(s):  
Pacific Coast ◽  
Eastern Pacific ◽  
Western Atlantic ◽  
Mexican Pacific ◽  
The Pacific ◽  
First Time

A total of 75 specimens belonging to four species of thalassinoids were collected in the intertidal and estuarine zones of two localities along the Pacific coast of Mexico.Callianassa tabogensisis recorded for the first time in Mexico, and is transferred to the genusNeotrypaea. Material ofCallichirusis assigned toCallichirus seilacheriwith some doubts due to taxonomic problems related to this genus in the eastern Pacific.Neocallichiruscf.grandimana, an amphi-American species described for the western Atlantic and previously reported in Ecuador and along the Pacific coast of Panama and Colombia, is reported for the first time in Mexico.Upogebia dawsoniis recorded for the second time from the coast of Jalisco. An updated list of Axiidea and Gebiidea known from the Mexican Pacific is provided, including 35 species.

scholarly journals First record of Glycera guatemalensis and G. sphyrabrancha (Annelida: Glyceridae) from Western Mexico

2019 ◽  
Vol 67 (S5) ◽  
pp. S63-S69
Author(s):  
María Elena García-Garza ◽  
Iliana Torres-Manríquez ◽  
María Ana Tovar-Hernández ◽  
Jesús Angel De León-González
Keyword(s):  
Intertidal Zone ◽  
Gulf Of California ◽  
Baja California ◽  
First Record ◽  
Morphological Characters ◽  
Mexican Pacific ◽  
Western Mexico ◽  
Shrimp Trawl ◽  
The Pacific ◽  
Objective Evidence

Introduction: Glycerides, commonly called “blood worms”, are relatively thin polychaetes that reach considerable sizes. They have been reported for all the seas of the world from the intertidal zone to abyssal depths. Objective: Evidence the presence of two species of Glycera for the littorals of the Mexican Pacific. Methods: An analysis of the glycerides of the Pacific coast of Mexico was carried out, finding two species that were collected, one of shrimp trawl at a depth of 18 meters off Puertecitos, Baja California, as well as by manual sampling in the intertidal zone of Concepción Bay, Baja California Sur in the Gulf of California. For their taxonomic determination, morphological characters of greater relevance for their identification were examined, such as jaws, aileron shape, parapodia, chaetae, and the type of pharyngeal papillae. Results: We diagnosed and schematized Glycera guatemalensis Böggemann & Fiege, 2001 and Glycera sphyrabrancha Schmarda, 1861. Conclusions: Glycera guatemalensis described for Guatemala and Glycera sphyrabrancha described for Jamaica, are recorded for the first time for the Gulf of California.

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