A new species of Pontella Dana, 1846 from Indonesian waters is herein described. Pontella mayalibit n. sp. is distinguishable in the female by having a small posterodorsal beak-like process on the left side of Ur1, the extremely asymmetrical CR and the form of the P5; in the male by the Ur1 naked, the slender thumb of the chela and the elongated and slender shape of the finger of the right P5. Pontella surrecta is recorded for the first time in Indonesia and an expanded description is provided based on topotypic specimens. The female is distinguishable by having a very large posterodorsal beak-like process of Ur1, the asymmetrical CR and the form of the P5; while the male by the long posterior corners of Pdg5, the elongated thumb of the chela and the very slender shape of the finger of the right P5.
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http://dx.doi.org/10.11646/zootaxa.5512.4.5 | DOI Listing |
Zootaxa
September 2024
Research Center for Oceanography; National Research and Innovation Agency (BRIN); Jakarta 14430.
A new species of Pontella Dana, 1846 from Indonesian waters is herein described. Pontella mayalibit n. sp.
View Article and Find Full Text PDFSci Total Environ
January 2024
Oceanographic Center of the Balearic Islands (COB-IEO, CSIC), Moll de Ponent s/n, 07015 Palma, Balearic Islands, Spain.
Hyponeustonic species, living at the interface between the atmosphere and the oceans, comprise one of the most understudied and vast critical marine biotope, constantly exposed to high concentrations of anthropogenic contaminants and microplastic (MPs). Copepods of the Pontellidae family represent the primary components of this biotic assemblage worldwide, and their interaction with MPs is still unknown. We studied this interaction for the first time in Pontella mediterranea, assessing the ingestion of anthropogenic particles (APs) in 2793 individuals collected by manta trawl in the Northern Alboran Sea.
View Article and Find Full Text PDFZool Stud
April 2018
Dept. of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and technology, Kerala, India. E-mail: (Nandan).
The neustonic copepods of the family Pontellidae - Giesbrecht, 1889 and Wilson, 1950, both first described on the basis of female specimens exhibit very similar morphology and overlapping geographic ranges in the Indian Ocean. While several taxonomists have described males of each species, there has been no definitive evidence for female-male matching (link female and male of the same species) in the two species. In the present study, an analysis of mitochondrial cytochrome oxidase subunit I (mtCOI) sequences in the specimens collected from the Arabian Sea revealed that female Giesbrecht, 1889, and male Silas and Pillai (1973) are genetically identical, providing evidence that the latter is actually .
View Article and Find Full Text PDFMicrobiologyopen
December 2016
Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan.
Dinitrogen fixation, the biological reduction in N gas to ammonia contributes to the supply of new nitrogen in the surface ocean. To understand the diversity and abundance of potentially diazotrophic (N fixing) microorganisms associated with marine zooplankton, especially copepods, the nifH gene was studied using zooplankton samples collected in the Pacific Ocean. In total, 257 nifH sequences were recovered from 23 nifH-positive DNA extracts out of 90 copepod samples.
View Article and Find Full Text PDFJ Exp Biol
November 2007
Cell and Organism Biology, Zoology Building, Helgonavagen 3, Lund, Sweden.
Light scattering by zooplankton was investigated as a major factor undermining transparency camouflage in these pelagic animals. Zooplankton of differing transparencies--including the hyperiid amphipod Anchylomera blossevillei, an unknown gammarid amphipod species, the brine shrimp Artemia salina, the euphausiid shrimp Euphausia diomedeae, the isopod Gnathia sp., the copepods Pontella karachiensis, Rhincalanus sp.
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