scholarly journals Marine mollusks of Bahía Málaga, Colombia (Tropical Eastern Pacific)

Check List ◽  
2015 ◽  
Vol 11 (1) ◽  
pp. 1497 ◽  
Author(s):  
Luz Ángela López de Mesa ◽  
Jaime Ricardo Cantera
Keyword(s):  
Pacific Coast ◽  
Species Distributions ◽  
Eastern Pacific ◽  
Marine Biodiversity ◽  
Tropical Eastern Pacific ◽  
Marine Mollusks ◽  
Valle Del Cauca ◽  
Colombian Pacific

A checklist of mollusks reported in Bahía Málaga (Valle del Cauca, Colombia) was developed through recent samplings in the zone (2004–2012), together with bibliographic and museums’ collections reviews. Species’ distributions in Bahía Málaga were established through 18 different sub­regions, which included the inner, middle and outer zones of the bay. A revision of the western American distribution for the species was also carried out. A total of 426 species were found, of which 44 were new reports for the Colombian Pacific coast. Results supported the high marine biodiversity that has been reported for this region.

scholarly journals Marine biodiversity from zero to a thousand meters at Clipperton Atoll (Île de La Passion), Tropical Eastern Pacific

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7279 ◽  
Author(s):  
Alan M. Friedlander ◽  
Jonatha Giddens ◽  
Enric Ballesteros ◽  
Shmulik Blum ◽  
Eric K. Brown ◽  
...  
Keyword(s):  
Marine Reserve ◽  
Oceanic Islands ◽  
Eastern Pacific ◽  
Taxonomic Resolution ◽  
Marine Biodiversity ◽  
Tropical Eastern Pacific ◽  
High Turnover ◽  
Depth Effect ◽  
Black Corals ◽  
Manned Submersible

Clipperton Atoll (Île de La Passion) is the only atoll in the Tropical Eastern Pacific (TEP) ecoregion and, owing to its isolation, possesses several endemic species and is likely an important stepping stone between Oceania, the remainder of the TEP, including other oceanic islands and the west coast of Central America. We describe the biodiversity at this remote atoll from shallow water to depths greater than one thousand meters using a mixture of technologies (SCUBA, stereo baited remote underwater video stations, manned submersible, and deep-sea drop cameras). Seventy-four unique taxa of invertebrates were identified during our expedition. The majority (70%) of these taxa were confined to the top 400 m and consisted mostly of sessile organisms. Decapod crustaceans and black corals (Antipatharia) had the broadest depth ranges, 100–1,497 m and 58–967 m, respectively. Decapods were correlated with the deepest depths, while hard corals were correlated with the shallow depths. There were 96 different fish taxa from 41 families and 15 orders, of which 70% were restricted to depths <200 m. While there was a decreasing trend in richness for both fish and invertebrate taxa with depth, these declines were not linear across the depth gradient. Instead, peaks in richness at ∼200 m and ∼750 m coincided with high turnover due to the appearance of new taxa and disappearance of other taxa within the community and is likely associated with the strong oxygen minimum zone that occurs within the region. The overall depth effect was stronger for fishes compared with invertebrates, which may reflect ecological preferences or differences in taxonomic resolution among groups. The creation of a no-take marine reserve 12 nautical miles around the atoll in 2016 will help conserve this unique and relatively intact ecosystem, which possesses high predator abundance.

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%).

First record of hybridization in Caranx Lacepède, 1801 (Carangidae: Perciformes) in the Tropical Eastern Pacific Ocean

Zootaxa ◽  
2020 ◽  
Vol 4890 (2) ◽  
pp. 266-274
Author(s):  
ARTURO ANGULO ◽  
JOSÉ LUIS MOLINA ◽  
FEDERICO HAMPL ◽  
SEBASTIÁN HERNÁNDEZ
Keyword(s):  
Pacific Ocean ◽  
Pacific Coast ◽  
First Record ◽  
Molecular Techniques ◽  
Eastern Pacific ◽  
Recreational Fishing ◽  
Eastern Pacific Ocean ◽  
Tropical Eastern Pacific ◽  
Fishing Trip ◽  
Unusual Combination

During a recreational fishing trip on May 2017 to Isla Montuosa, Pacific coast of Panama (7.467472, -82.266556; 30 m depth), a specimen belonging to the genus Caranx was captured. The specimen showed an unusual combination of external characters, intermediate among the species known to occur in the Tropical Eastern Pacific (TEP), which caught the attention of the fishermen. A detailed analysis involving traditional morphology and molecular techniques revealed that the specimen corresponds to a hybrid of the species C. melampygus and C. sexfasciatus. This represents, to the best of our knowledge, the first confirmed record of hybridization within the genus and family in the TEP and the second record for the entire Pacific Ocean. 

scholarly journals PRIMER REGISTRO DEL TAMBORIL NARIGÓN (SPHOEROIDES LOBATUS: TETRAODONTIDAE) EN ISLA MALPELO, PACÍFICO COLOMBIANO

2017 ◽  
Vol 46 (1) ◽  
Author(s):  
Stephanía Rojas-Vélez ◽  
José Julian Tavera
Keyword(s):  
Oceanic Islands ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Malpelo Island ◽  
Colombian Pacific

Among the eight species of the genus Sphoeroides (family Tetraodontidae) that inhabit the Tropical Eastern Pacific only Sphoeroides lobatus has been reported in more than onegroup of oceanic islands: Galápagos, Revillagigedo and Isla del Coco. This work presents the first documented record of the longnose puffer (S. lobatus) at Malpelo Island, Colombian Pacific.

scholarly journals CTENOCHAETUSMARGINATUS (VALENCIENNES) (PISCES: ACANTHURIDAE) EN LA ISLA DE GORGONA: PRIMER REGISTRO DEL GENERO PARA EL PACIFICO COLOMBIANO

2016 ◽  
Vol 24 ◽  
Author(s):  
Fernando A. Zapata ◽  
Yaneth A. Morales
Keyword(s):  
Temperature Variability ◽  
Eastern Pacific ◽  
Morphometric Characteristics ◽  
Tropical Eastern Pacific ◽  
Colombian Pacific

The genus Ctenochaetus is reported in the waters of the Colombian Pacific based on two specimens of C. marginatus (Valenciennes) collected in 1993 at Gorgona Island (2°59, N, 78° 12, W). These specimens differ in several morphometric characteristics from those previously examined. Such differences appear to be an artifact of the small number of specimens formerly examined and the consequent narrow ranges reported. We suggest that temperature variability affects the distribution of C. marginatus in the tropical eastern Pacific.

scholarly journals Imantodes chocoensis Torres-Carvajal, Yánez-Muñoz, Quirola, Smith, and Almendáriz, 2012 (Squamata: Dipsadidae): first records from Colombia

Check List ◽  
2013 ◽  
Vol 9 (5) ◽  
pp. 1070
Author(s):  
Andrés F. Jaramillo-Martínez ◽  
Alejandro Valencia-Zuleta ◽  
Fernando Castro-Herrera
Keyword(s):  
Pacific Coast ◽  
New Records ◽  
Species Range ◽  
Valle Del Cauca ◽  
First Time ◽  
Colombian Pacific

The occurrence of Imantodes chocoensis in Colombia is noted for the first time based on two new records from the lowlands of Valle del Cauca, on the Colombian Pacific coast, which extends the species range approximately 313 km NE (airline) from Carchi and Esmeralda, Ecuador.

scholarly journals Identification of Synergies and Conflicts in Coastal and Marine uses in Colombian Pacific: a Spatial Multi-Criteria Analysis

2021 ◽  
Vol 6 (Vol Esp. 2) ◽  
pp. 165-182
Author(s):  
Mauricio Alejandro Perea-Ardila ◽  
Fernando Oviedo-Barrero ◽  
Sabrina Monsalve-Rocha ◽  
María Alejandra Ocampo-Rojas
Keyword(s):  
Pacific Coast ◽  
Integrated Management ◽  
Methodological Approach ◽  
Physical Space ◽  
Multi Scale ◽  
Gis Tools ◽  
Multi Criteria Analysis ◽  
Valle Del Cauca ◽  
Maritime Spatial Planning ◽  
Colombian Pacific

The increasing demands for physical space towards diverse maritime activities call for coherent planning and scientific knowledge to support the management of the marine the environment. Using secondary multi-scale geographic information gathered from national institutions, expert judgment and a multi-criteria analysis integrated with GIS tools, we aimed to identify potential synergies and conflicts between human activities occurring in the jurisdiction of the master harbor of Buenaventura in the Valle del Cauca department (CP01) in the Colombian Pacific coast. We identified 105 overlaps in which 5.04% were categorized with high CNI (Conflict Normalized Index), while 13 interactions were evaluated with the highest conflict value, representing 14 sectors/groups. Additionally, 12.97% of the overlaps were categorized with a medium number of overlaps (4-6 overlays use), specifically distributed inside the Buenaventura Bay. Conservation uses (Protected Areas – SINAP in Colombia) was consistent within all 13 incompatibilities and conflicts distribution along the study area was not homogenous. The methodological approach used in this study can be used to identify conflicts and synergies in human uses and activities in the marine and coastal environment through the implementation of a methodology adapted to the context of the area. It presents a technical contribution to future processes of Marine/Maritime Spatial Planning and the Integrated Management of the Coastal Zone of Colombia.

Systematics and biogeography of Tropical Eastern Pacific Chthamalus with descriptions of two new species (Cirripedia, Thoracica)

Zootaxa ◽  
2007 ◽  
Vol 1574 (1) ◽  
pp. 1-30 ◽  
Author(s):  
FÁBIO BETTINI PITOMBO ◽  
RON BURTON
Keyword(s):  
New Species ◽  
Genetic Divergence ◽  
Gulf Of California ◽  
Pacific Coast ◽  
Eastern Pacific ◽  
Sibling Pair ◽  
Outer Face ◽  
Tropical Eastern Pacific ◽  
Ecological Features ◽  
Two New Species

Distribution patterns of Chthamalus along the Tropical Eastern Pacific region have not yet been described, mostly due to unknown species ranges and the presence of cryptic species that has biased previous attempts to describe them. Prior to this paper, four formal and two informal species of Chthamalus have been recognized as occurring along the Pacific Americas coast: C. dalli Pilsbry; C. fissus Darwin; C. anisopoma Pilsbry; C. panamensis Pilsbry, Chthamalus sp. “cortezianus” and Chthamalus sp. “mexicanus”. The two informal species were already known to exist, based on previous studies using allozymes and gene sequencing, but their morphological characterizations were not determined, thus preventing their recognition and the ascertainment of their status under the International code of Zoological Nomenclature. The main goal of the present study was to discover the morphological differences that distinguish these two species, to determine their latitudinal range, to establish some relationship among the other species of Chthamalus, and to correlate these with the informal names previously used. Two new species of Chthamalus are described: C. hedgecocki sp. nov. occurring along the Mexican coast (Mexican province) and Chthamalus southwardorum sp. nov. occurring from the Gulf of California (Mexico) to the north of Peru, being a typical member of Panamanian s. l. Province. Both species belong to the Chthamalus fissus group of species as they have bidenticulate setae with basal guards on cirrus II and an absence of conical spines on the outer face of the exopod of cirrus I. The names Chthamalus sp. “cortezianus” is herein associated with C. hedgecocki and Chthamalus sp. “mexicanus” with C. southwardorum. An extensive sympatric distribution of Chthamalus species was noticed along the Eastern Pacific, and Chthamalus panamensis, previously known to be limited to the Panamanian coast, was found up to the Mexican coast in sympatry with C. hedgecocki. The COI genetic divergence between C. panamensis and C. hedgecocki varied between 2.8–4.3 using (GTR+G). We suggest that these species form a sibling pair based on to their morphological, ecological and genetic similarities and their evolution took place along the Eastern Pacific coast after the closure of the Isthmus of Panama. Chthamalus southwardorum is the best choice for a sibling pair with C. proteus, as they share morphological and ecological features; nevertheless they present a very high genetic divergence (24.3 to 25.1 GTR+G). Further studies are needed to clarify the evolutionary processes that led to the evolution of the Chthamalus fissus group of species along the Tropical Eastern Pacific coast and in the Caribbean.

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.

scholarly journals Current Ecological Status of Remote Coral Reefs of Clipperton Island, Tropical Eastern Pacific

2021 ◽  
Author(s):  
Claudia Pogoreutz ◽  
Eric E. G. Clua ◽  
JOSE DE JESUS ADOLFO TORTOLERO LANGARICA
Keyword(s):  
Coral Reefs ◽  
Coral Cover ◽  
Ecological Status ◽  
Parasite Prevalence ◽  
Coral Community ◽  
Eastern Pacific ◽  
Marine Biodiversity ◽  
Live Coral ◽  
Tropical Eastern Pacific ◽  
Live Coral Cover

Abstract Clipperton, an uninhabited and remote coral atoll from the Eastern Pacific, is an important steppingstone area that harbors a high marine biodiversity. Despite its biogeographic importance, little information on the ecological status of its coral reefs is available from the last decade. Herein, we characterized the benthic coral community and health status among four different shallow reef-zones (North to South) of Clipperton during the Tara Pacific expedition in 2018. The benthic composition and coverage percentage, as well as occurrence of a pink-spotted coral phenotype (trematodiasis infection) was assessed. Total live coral cover on Clipperton reefs was 66% (55-85%), differing between sites, with massive Porites and branching Pocillopora corals dominating the benthic community with an average 48% (32-66%), and 15% (3-21%), respectively. While Clipperton reefs exhibited significant live coral cover overall, the trematode infection was commonly observed, with a higher occurrence in massive corals (Porites 27%, and Pavona 31%). This observation is possibly related to the combined effects of previously heatwaves, and local inputs of guano-derived nutrients discharged during storms and hurricanes. These results demonstrates that even highly remote reefs supporting high coral cover can be subjected to local and global threats, including but not limited to parasite prevalence, likely in relation to natural disturbances such as thermal stress and tropical cyclones.

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