scholarly journals RELACIONES FILOGEOGRÁFICAS DE ALGUNAS COLONIAS DE ALIMENTACIÓN Y ANIDACIÓN DE LA TORTUGA CAREY (ERETMOCHELYS IMBRICATA) EN EL PACÍFICO Y CARIBE COLOMBIANOS

2016 ◽  
Vol 43 (1) ◽  
Author(s):  
Natalia Trujillo Arias ◽  
Diego F Amorocho ◽  
Diana López Álvarez ◽  
Luz M Mejía Ladino
Keyword(s):  
Isolation By Distance ◽  
Divergence Time ◽  
Sea Turtle ◽  
Global Scale ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Eretmochelys Imbricata ◽  
Distance Analysis ◽  
The Pacific ◽  
High Diversity

The sea turtle Eretmochelys imbricata inhabits tropical waters of all oceans. IUCN considers this species to be critically endangered and its populations are affected by illegal international shell traffic. We present a pioneer research for Colombia and the Tropical Eastern Pacific, since populations located in 1) Parque Nacional Natural Gorgona, 2) Corales del Rosario y San Bernardo, and 3) Cabo de la Vela (Guajira) were genetically characterized using mtDNA control region sequences. Two new haplotypes for the Eastern Pacific were found, although with low diversity indexes (h: 0.2857 ± 0.1964; π: 0.0009 ± 0.0008). Five haplotypes were found for Corales del Rosario and San Bernardo’s populations, with high diversity indexes (h: 0.9333 ± 0.1217; π: 0.0089 ± 0.0056). Finally, Cabo de la Vela population presented relatively high diversity indexes (h: 0.6429 ± 0.0539; π: 0.0076 ± 0.0041). The genetic distance analysis revealed no significant differentiation between the Colombian Caribbean rookeries (Φst = 0.002, p > 0.05; Fst = 0.083, p > 0.05). However, significant differences were found between Cabo de la Vela nesting rookery and eight nesting rookeries along the Caribbean Sea, which is a genetic pattern characteristic of sea turtles on a global scale. Our phylogeographic analysis revealed a deep split between the Atlantic and the Pacific-Indian Ocean. For Atlantic phylogroup no clear clustering between haplotypes was perceived, while in the Pacific-Indian phylogroup a possible distribution of isolation by distance was observed. The divergence time reported in this study between the Atlantic and Pacific-Indian lineages suggests a separation that may have occurred between the Pliocene and Pleistocene (7 Ma), possibly influenced by the rise of the Panama Isthmus.

Phylogeography of the Pacific Red Snapper (Lutjanus peru) and Spotted Rose Snapper (Lutjanus guttatus) in the Inshore Tropical Eastern Pacific

Copeia ◽  
2020 ◽  
Vol 108 (1) ◽  
pp. 61
Author(s):  
Cristóbal Hernández-Álvarez ◽  
Natalia J. Bayona-Vásquez ◽  
Omar Domínguez-Domínguez ◽  
Manuel Uribe-Alcocer ◽  
Píndaro Díaz-Jaimes
Keyword(s):  
Red Snapper ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
The Pacific

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%).

Redescription of Pomatostegus stellatus (Abildgaard, 1789) and P. kroyeri Mörch, 1863 (Polychaeta: Serpulidae) from the Tropical American coasts

Zootaxa ◽  
2021 ◽  
Vol 4970 (3) ◽  
pp. 495-514
Author(s):  
J. PABLO SÁNCHEZ-OVANDO ◽  
J. ROLANDO BASTIDA-ZAVALA
Keyword(s):  
Costa Rica ◽  
Caribbean Sea ◽  
Morphological Characters ◽  
Identification Key ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Tropical Waters ◽  
The Pacific ◽  
Plate Shape ◽  
The Caribbean

Pomatostegus Schmarda, 1861 is a serpulid genus with three recognized species, mostly from tropical waters. Pomatostegus stellatus (Abildgaard, 1789), was described from the Caribbean Sea, and has been widely recorded in the Pacific and Indian oceans; P. kroyeri Mörch, 1863 was described from Puntarenas, Costa Rica; however, most records from the Tropical Eastern Pacific were referred to P. stellatus. In this work, the two species are redescribed using morphological characters. The main differences are in the shape of the Spirobranchus-type collar chaetae, opercular plate shape and the number of “free” circlets of spines without accompanying of opercular plates. Comments about characters of P. actinoceras Mörch, 1863, described from Philippines, and an identification key for the three species, are included. 

List of coastal fishes of Islas Marías archipelago, Mexico, with comments on taxonomic composition, biogeography, and abundance

Zootaxa ◽  
2011 ◽  
Vol 2985 (1) ◽  
pp. 26 ◽  
Author(s):  
BRAD E. ERISMAN ◽  
GRANTLY R. GALLAND ◽  
ISMAEL MASCAREÑAS ◽  
JERRY MOXLEY ◽  
H. J. WALKER ◽  
...  
Keyword(s):  
Fish Species ◽  
Gulf Of California ◽  
Significant Proportion ◽  
Taxonomic Composition ◽  
Eastern Pacific ◽  
Museum Collections ◽  
Tropical Eastern Pacific ◽  
Coastal Fish ◽  
Northeast Pacific ◽  
The Pacific

The first comprehensive list of 318 coastal fish species recorded from the Islas Marías Archipelago, Mexico, was compiled from recent fieldwork, archival museum collections, and literature references. The jacks (Carangidae, 18 species) and the labrisomid blennies (Labrisomidae, 16) were the most speciose families. Most recorded species occur throughout the tropical eastern Pacific (160 species), while a significant proportion have wider ranges in the eastern Pacific (39), eastern Pacific and Indo-Pacific (39), eastern Pacific and Atlantic (3), or are circumtropical (39) in distribution. Three species occur in the Northeast Pacific, twenty-five are endemic to the Pacific coasts of Mexico, five are endemic to the Gulf of California, and three are endemic to Islas Marías. Cephalopholis panamensis (Epinephelidae), Epinephelus labriformis (Epinephelidae), Mulloidichthys dentatus (Mullidae), Stegastes flavilatus (Pomacentridae), Acanthurus xanthopterus (Acanthuridae), Pseudobalistes naufragium (Tetraodontidae), and Sufflamen verres (Tetraodontidae) were the dominant conspicuous species observed during underwater surveys in 2010. The absence or low abundance of commercially valuable shark, ray, and grouper species throughout the archipelago is discussed.

Revision of the Alpheus nuttingi (Schmitt) species complex (Crustacea: Decapoda: Alpheidae), with description of a new species from the tropical eastern Pacific

Zootaxa ◽  
2007 ◽  
Vol 1577 (1) ◽  
pp. 41-60 ◽  
Author(s):  
ARTHUR ANKER ◽  
CARLA HURT ◽  
NANCY KNOWLTON
Keyword(s):  
Gulf Of California ◽  
Species Complex ◽  
Divergence Time ◽  
Color Pattern ◽  
Sister Species ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Western Atlantic ◽  
Sister Clade ◽  
Pacific Species

The Alpheus nuttingi (Schmitt, 1924) species complex consists of three species.  The only western Atlantic species, A. nuttingi, occurs from the southeastern United States to Brazil.  The two eastern Pacific species are A. galapagensis Sivertsen, 1933 (synonyms: A. canalis Kim & Abele, 1988; A. cryptodentatus Christoffersen & Ramos, 1988), which occurs from the Gulf of California to Colombia and Galapagos, and A. millsae, n. sp., presently known only from a few localities in Panama.  The three species differ morphologically, genetically, and in color pattern.  The two eastern Pacific species both can be found in the intertidal, but A. millsae, n. sp. occurs slightly deeper, suggesting the possibility of ecological speciation.  All evidence shows that A. nuttingi and A. millsae, n. sp. are transisthmian sister species, with A. galapagensis forming their sister clade.  Genetic differentiation between the transisthmian sister species suggests a divergence time of approximately 6 mya, well before the final closure of the Isthmus of Panama.

Littoral Maeridae and Melitidae (Amphipoda: Gammaridea) from the Gulf of Tehuantepec, Mexico

Zootaxa ◽  
2010 ◽  
Vol 2623 (1) ◽  
pp. 1 ◽  
Author(s):  
MARÍA DEL SOCORRO GARCÍA-MADRIGAL
Keyword(s):  
New Species ◽  
Gulf Of California ◽  
New Records ◽  
Galapagos Islands ◽  
Eastern Pacific ◽  
Galápagos Islands ◽  
Tropical Eastern Pacific ◽  
The North ◽  
The Pacific ◽  
Gulf Of Tehuantepec

In the Tropical Eastern Pacific region, the gammaridean amphipods of the families Maeridae and Melitidae are represented by 28 species and 11 genera; the genus Elasmopus is the richest, with 13 species. The examination of approximately 3,250 specimens resulted in 12 new records from the Gulf of Tehuantepec, belonging to four genera, Elasmopus, Maera, Quadrimaera and Melita. All species are illustrated and described. Seven new species are described as: Elasmopus bastidai n. sp., Elasmopus karlae n. sp., Elasmopus lecroyae n. sp., Elasmopus marcelae n. sp., Elasmopus oaxaquensis n. sp., Maera umarae n. sp., and Melita bousfieldi n. sp. With these new species the genus Elasmopus from the Tropical Eastern Pacific is increased to 18 species that corroborates the hypothesis of Barnard (1979) “on the Pacific there are (sic) a mark of speciation of genus Elasmopus”. In addition, there are five new records from the Gulf of Tehuantepec: three species of Elasmopus and two of Quadrimaera. Also, the range distribution of Elasmopus temori Barnard and E. zoanthidea Barnard, is increased to the north from the Galapagos Islands to the Gulf of Tehuantepec; for E. tubar Barnard, Quadrimaera chinarra Barnard, and Q. reishi Barnard, there are new intermediate records between the Gulf of California and the Galapagos Islands. With the exception of the species of Quadrimaera, all known species represent the second record in the region after their first descriptions.

scholarly journals Hematology, biochemistry, and toxicology of wild hawksbill turtles (Eretmochelys imbricata) nesting in mangrove estuaries in the eastern Pacific Ocean

2017 ◽  
Author(s):  
Aubrey M. Tauer ◽  
Michael J. Liles ◽  
Sofía Chavarría ◽  
Melissa Valle ◽  
Sada Amaya ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Pacific Ocean ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Sea Turtle ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Eretmochelys Imbricata ◽  
Mangrove Estuary ◽  
Hawksbill Turtles

AbstractSea turtles are a keystone species and are highly sensitive to changes in their environment, making them excellent environmental indicators. In light of environmental and climate changes, species are increasingly threatened by pollution, changes in ocean health, habitat alteration, and plastic ingestion. There may be additional health related threats and understanding these threats is key in directing future management and conservation efforts, particularly for severely reduced sea turtle populations. Hawksbill turtles (Eretmochelys imbricata) are critically endangered, with those in the eastern Pacific Ocean (Mexico–Peru) considered one of the most threatened sea turtle populations in the world. This study establishes baseline health parameters in hematology and blood biochemistry as well as tested for heavy metals and persitent organic pollutants in eastern Pacific hawksbills at a primary nesting colony located in a mangrove estuary. Whereas hematology and biochemistry results are consistent with healthy populations of other species of sea turtles, we identified differences in packed cell volume, heterophils and lympohcyte counts, and glucose when comparing our data to other adult hawksbill analysis (1), (2), (3). Our analysis of heavy metal contamination revealed a mean blood level of 0.245 ppm of arsenic, 0.045 ppm of lead, and 0.008 ppm of mercury. Blood levels of persistent organic pollutants were below the laboratory detection limit for all turtles. Our results suggest that differences in the feeding ecology of eastern Pacific hawksbills in mangrove estuaries may make them less likely to accumulate persistent organic pollutants and heavy metals in their blood. These baseline data on blood values in hawksbills nesting within a mangrove estuary in the eastern Pacific offer important guidance for health assessments of the species in the wild and in clinical rehabilitation facilities, and underscore the importance of preventing contamination from point and non-point sources in mangrove estuaries, which represent primary habitat to hawksbills and myriad other marine species in the eastern Pacific Ocean.

scholarly journals Distribution extension of Dasyonchocotyle dasyatis (Yamaguti, 1968) Boeger & Kritsky, 1989 (Monogenea: Hexabothriidae) in Dasyatis longa (Garman, 1880) (Myliobatiformes: Dasyatidae) from Sinaloa, México

Check List ◽  
2015 ◽  
Vol 11 (1) ◽  
pp. 1528 ◽  
Author(s):  
Rafaela Escorcia-Ignacio ◽  
Griselda Pulido-Flores ◽  
Scott Monks
Keyword(s):  
Geographic Distribution ◽  
Pacific Coast ◽  
Original Description ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
The Pacific

The collection of 13 specimens of Dasyonchocotyle dasyatis (Yamaguti, 1968) Boeger & Kritsky, 1989 on the coast of Sinaloa, México extends the geographic distribution of the species from the original locality (Hawaii, U.S.A.) eastward to at least the Pacific Coast of Mexico. The species is a parasite of Dasyatis longa (Garman, 1880), a common stingray of the tropical eastern Pacific. This species has not been reported since the original description in 1968.

Microgobius urraca (Teleostei: Gobiidae), a new species of goby from the tropical eastern Pacific

Zootaxa ◽  
2012 ◽  
Vol 3447 (1) ◽  
pp. 41 ◽  
Author(s):  
LUKE TORNABENE ◽  
JAMES L. VAN TASSELL ◽  
D. ROSS ROBERTSON
Keyword(s):  
New Species ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Dorsal Fin ◽  
Dichotomous Key ◽  
The Pacific ◽  
Fin Ray ◽  
Pacific Species ◽  
A New Species ◽  
Lateral Scale

A new species of goby in the genus Microgobius (Teleostei: Gobiidae: Gobiosomatini) is described from the Pacific coastof Panama. It is morphologically similar to M. erectus, but differs from that species in possessing fewer lateral scale rows,lacking a patch of ctenoid scales under the pectoral fin, having unpigmented epaxial myosepta, having a distinct oval-shaped dark blotch on the first dorsal fin, and possessing three blue-white stripes on a dark caudal fin. Differences in boththe number and type of scales, dorsal and anal fin ray counts, the poor development of a fleshy dorsal crest, and overallcolor patterns further distinguish this species from the remaining eastern Pacific congeners. Photographs of all Pacific species of Microgobius and a dichotomous key to the Pacific members of the genus are provided.

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