Tintinnids (Tintinnida: Ciliophora) from Colombia: An annotated distributional checklist

Zootaxa ◽  
2020 ◽  
Vol 4894 (3) ◽  
pp. 329-340
Author(s):  
DANIELA ROJAS SÁNCHEZ

Tintinnids are loricated ciliates found in coastal and oceanic waters that play a key role in the transference of energy to highest trophic levels. The purpose of this article is intended to integrate the available information about the taxonomy and distribution of Colombian tintinnids. An annotated distributional checklist based on published data is presented. One hundred and seven valid species of tintinnids, belonging to 12 families and 33 genera were listed. The genera Tintinnopsis and Eutinntinnus presented the highest number of species. Eighty-three species were recorded in the Caribbean basin and 51 in the Pacific, with a higher number in coastal waters. 

Zootaxa ◽  
2021 ◽  
Vol 4938 (1) ◽  
pp. 145-147
Author(s):  
RUDOLF H. SCHEFFRAHN

Cryptotermes Banks, 1906 is the third most diverse kalotermitid genus worldwide after Glyptotermes Froggatt, 1897 and Neotermes Holmgren, 1911, with its greatest diversity found in the Neotropics (Krishna et al. 2013a). Furthermore, the greatest number of species of Cryptotermes are known from the Caribbean Basin (Scheffrahn & Křeček 1999, Casala et al. 2016, Scheffrahn 2019). Although Araujo (1977) and Bacchus (1987) list Cryptotermes domesticus (Haviland, 1898) from Trinidad (treated as mainland) and Panama, respectively, Scheffrahn & Křeček (1999) and Scheffrahn et al. (2009) doubt the existence of this Asian species in the New World. Without C. domesticus, the total extant Neotropical diversity of Cryptotermes is 29 endemic and three exotic species (Constantino 2020). 


Check List ◽  
2015 ◽  
Vol 11 (4) ◽  
pp. 1703
Author(s):  
Román Felipe Díaz-Ayala ◽  
Paul David Gutiérrez Cárdenas ◽  
Angelly Mariela Vásquez-Correa ◽  
Jóse Rances Caicedo-Portilla

Based on recent records, published data, and review of specimens deposited in scientific collections, we present an updated map of the geographic distribution of Diploglossus monotropis in Colombia. Our data show that this species has a wide geographical distribution, including the Pacific versant of the Cordillera Occidental, the inter-Andean valley of the Magdalena River, and the Caribbean lowlands of northern Colombia.


Toxins ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 524 ◽  
Author(s):  
Pedro Costa ◽  
Pablo Estevez ◽  
David Castro ◽  
Lucía Soliño ◽  
Neide Gouveia ◽  
...  

Ciguatoxins (CTXs), endemic from tropical and subtropical regions of the Pacific and Indian Ocean and the Caribbean Sea, have caused several human poisonings during the last decade in Europe. Ciguatera fish poisonings (CFP) in Madeira and Canary Islands appear to be particularly related with consumption of fish caught close to Selvagens Islands, a Portuguese natural reserve composed of three small islands that harbor high fish biomass. In this study, fish specimens considered as potential vectors of CTXs were caught in Madeira and Selvagens archipelagos for toxins determination via sensitive liquid chromatography with tandem mass spectrometry detection (LC–MS/MS). CTXs were found in most of the fish samples from Selvagens and none from Madeira. Caribbean ciguatoxin-1 (C-CTX1) was the only toxin congener determined, reaching the highest value of 0.25 µg C-CTX1 kg−1 in a 4.6 kg island grouper (Mycteroperca fusca). This study indicates that a diversity of fish from different trophic levels contains CTXs, Selvagens appear to be one of the most favorable locations for CTXs food web transfer and finally, this study highlights the need of further research based on intensive environmental and biological sampling on these remote islands.


2019 ◽  
Vol 131 (9-10) ◽  
pp. 1555-1580 ◽  
Author(s):  
Goran Andjić ◽  
Peter O. Baumgartner ◽  
Claudia Baumgartner-Mora

AbstractThe Cretaceous period was marked by the most voluminous episodes of oceanic plateau volcanism in the Phanerozoic Eon. Primarily affecting the Pacific, mantle plumes generated oceanic plateaus during three main phases (ca. 145–140 Ma, ca. 122–115 Ma, and ca. 100–90 Ma). Central America is one of the very few circum-Pacific margins where remnants of these Cretaceous plateaus were accreted. The study of their onland exposures provides a highly valuable insight into the complexity and diversity of oceanic plateau histories, from their eruption to their accretion. Exposed in northern Costa Rica, the plateau remnants of the Nicoya Peninsula originated from a Jurassic oceanic crust over-thickened by Early and Late Cretaceous hotspots. These sheared-off pieces of the Farallon Plate testify to the early tectonic interaction of the Caribbean Large Igneous Province (CLIP, ca. 94–89 Ma) with North America, initiated <5 m.y. after the onset of CLIP eruption. By combining our results with previously published data, we propose an updated tectono-stratigraphic framework that divides the Nicoya Peninsula into two oceanic plateau terranes. (1) The accretion timing of the Aptian to Turonian Manzanillo Terrane is constrained by the Coniacian (ca. 89–86 Ma) base of the overlapping Loma Chumico Formation. The proximal tuffaceous forearc deposits of the Loma Chumico Formation are the oldest evidence of a volcanic arc in Costa Rica—called here the Berrugate Arc—as revealed by new biostratigraphic and geochemical data. (2) The Nicoya Complex s. str. is a composite plateau remnant containing rocks of Bajocian to earliest Campanian age. Its accretion occurred during the middle Campanian (ca. 79–76 Ma) and shut down the Berrugate Arc. In contrast to the collision of CLIP with North America, onset of the collision of CLIP with South America began much later, during the latest Campanian (ca. 75–73 Ma).


2017 ◽  
Vol 65 (1-1) ◽  
pp. 288
Author(s):  
Osmar Benito Sandino ◽  
Francisco Alonso Solís-Marín ◽  
Andrea Alejandra Caballero-Ochoa ◽  
Carlos Andrés Conejeros-Vargas ◽  
Francisco Márquez-Borrás ◽  
...  

Abstract: Echinoderms from Nicaragua: new records for the Pacific and South Caribbean. There is little information about the echinoderms of Nicaragua. Here we present a list based on bibliographical revisions and collections of specimens made in the last three years. Samplings were made from June 11 to 16, 2016, in 10 locations (two in the Pacific and eight in the Caribbean). In addition, the databases of eight international scientific collections were reviewed. Finally, reports were added from photographic archives of the school of diving Dive Nicaragua and ECOLÓGICA S.A. The list of echinoderms of Nicaragua consists of 193 species distributed in five classes, 112 genera, 58 families and 24 orders. The class with the highest number of species was Asteroidea (57 species), followed by the class Echinoidea (46 species), and the class with the lowest number of species was Crinoidea (10 species). Fifty six new records are added for Nicaragua, 19 of which correspond to the Pacific and 38 to the Caribbean. Rev. Biol. Trop. 65(Suppl. 1): S288-S298. Epub 2017 November 01. 


Zootaxa ◽  
2020 ◽  
Vol 4766 (1) ◽  
pp. 157-172
Author(s):  
FRANCISCO ZARAGOZA-TAPIA ◽  
GRISELDA PULIDO-FLORES ◽  
SCOTT MONKS

Three new species of Acanthobothrium Blanchard, 1848 (Onchoproteocephalidea: Onchobothriidae) are described from Pacific coastal waters of Mexico. Based on four criteria for categorization of species of Acanthobothrium, the three new species belong to Category 2 species, characterized by their total length (< 15 mm), number of proglottids (< 50) and testes (<80), and with asymmetrical ovary. Acanthobothrium ppdeleoni n. sp. from diamond stingray Hypanus dipterurus (Jordan & Gilbert) is differentiated from congeners by a combination of characters including total length of the whole worms, size of the scolex and bothridia, length of the bases of the hooks and abaxial prongs, and the size of the cirrus sacs in mature proglottids. Acanthobothrium hypanus n. sp. and A. sinaloaensis n. sp. are described from longtail stingray Hypanus longus (Garman). Acanthobothrium hypanus n. sp. is differentiated by a combination of characters including size of the scolex and bothridia, diameter of the accessory sucker, length of the abaxial prongs, size of the cirrus sacs and testes in mature proglottids. Acanthobothrium sinaloaensis n. sp. is differentiated by a combination of characters including size of the scolex and bothridia, diameter of the accessory sucker, size of the cirrus sacs in mature proglottids, number of immature proglottids, number of testes, the length of the lobes of the ovary and the absence of velum between medial margin of bothridia. Thirteen species of Acanthobothrium have been reported previously from elasmobranchs from the Pacific coast of Mexico. In the present study, the number of species is elevated to 16. 


1989 ◽  
Author(s):  
Kenneth R. Walters ◽  
Andrew G. Korik ◽  
Michael J. Vojtesak

1986 ◽  
Vol 18 (11) ◽  
pp. 1-9 ◽  
Author(s):  
Willard Bascom

Southern California, with a coastal population of 12 million people, releases about 4.4 million cubic meters of treated waste water into the Pacific every day via outfalls that discharge three to six kilometers offshore at a depth of 60 meters. Diffusers cause each liter of waste to be diluted by 150 liters of deep cool water preventing it from reaching the surface except for short periods in winter. Data on the constituents of the four largest waste streams are presented and a brief account of the research done by the Southern California Coastal Water Research Project is given. Although the waste water now discharged meets rigorous state standards (with minor exceptions) and the steady improvement in sea conditions over a decade has been well documented, there is a continuing debate over whether our coastal waters are adequately protected. This is primarily because the damaging effects of DDT and PCBs that were discharged more than 14 years ago have been slow to go away. Although the amounts of DDT and PCB in sea animals are only one- tenth what they were a decade ago they tend to obscure the value of the improvements and the present discharge practices. The alternatives to sea disposal seem likely to cause greater damage to the overall environment.


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