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. 

Paleoceanography of the Tropical Eastern Pacific Ocean

Science ◽  
1992 ◽  
Vol 255 (5041) ◽  
pp. 172-178 ◽  
Author(s):  
R. W. GRIGG ◽  
R. HEY
Keyword(s):  
Pacific Ocean ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Tropical Eastern Pacific

New Hexactinellid Sponge Chaunoplectella megapora sp. nov. (Lyssacinosida: Leucopsacidae) from Clarion-Clipperton Fracture Zone, Eastern Pacific Ocean

Zootaxa ◽  
2018 ◽  
Vol 4375 (1) ◽  
pp. 136
Author(s):  
CHUNSHENG WANG ◽  
YUAN ZHANG ◽  
BO LU ◽  
DEXIANG WANG
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Fracture Zone ◽  
First Record ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Hexactinellid Sponge ◽  
Clipperton Fracture Zone ◽  
Clarion Clipperton Fracture Zone ◽  
A New Species

The new Hexactinellid sponge Chaunoplectella megapora sp. nov. reported in this study was collected from the COMRA contract area, the western part of Clarion-Clipperton Fracture Zone (CCFZ) in the eastern Pacific Ocean at a depth of 5258 m. This sponge’s extraordinary multiporous body with the presence of unique codonhexasters, sigmatocomes, toothed discohexasters and hemidiscohexasters, as well as stellate disocohexasters, characterizes it as a new species in the genus Chaunoplectella. This report presents the first record of family Leucopsacidae at this site in the eastern Pacific Ocean. 

scholarly journals Flora and Vegetation of Clipperton (La Passion) Atoll, North-Eastern Pacific Ocean: Three Centuries of Changes and Recent Plant Dynamics

2019 ◽  
pp. 1-31
Author(s):  
Xenia Jost ◽  
Christian H. Jost ◽  
Jean-Yves Meyer
Keyword(s):  
Pacific Ocean ◽  
Anthropogenic Activities ◽  
Abiotic Factors ◽  
Vascular Plant ◽  
Plant Cover ◽  
First Record ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
The Past ◽  
North Eastern

The terrestrial flora and vegetation of Clipperton (La Passion) atoll, a very remote and small (170 ha of land) French island located in the North-Eastern Pacific Ocean, at ca. 1,000 km west of the Mexican coast, have dramatically changed during the past three centuries. This paper, based on historical testimonies, previously published floristic studies, and an extensive plant inventory conducted during the “International Scientific Expedition PASSION 2015”, show that the atoll has experienced particularly active and rapid vegetation dynamics with alternating plant cover expansion and regression phases. Our results provide the first comprehensive assessment of vegetation cover and vascular plant species distribution based on georeferenced data and mapped with GIS software, as well as the first record of two newly established non-native weeds. The current composition and abundance of native and alien vascular plant communities (15 species including only 4 native taxa) appear to depend not only on abiotic factors (e.g. substrate and climatic events) but also on biotic interactions with animal communities (e.g. native seabirds and crabs). Anthropogenic activities and disturbances (e.g. coconut palm, pig, rat and weed introductions) that have occurred in the past 100 years have also played an important role in explaining the past and current floristic changes.

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