Person:
Pardos Martínez, Fernando

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First Name
Fernando
Last Name
Pardos Martínez
URI
https://hdl.handle.net/20.500.14352/74513
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Biológicas
Department
Biodiversidad, Ecología y Evolución
Area
Zoología
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UCM identifierORCIDScopus Author IDWeb of Science ResearcherIDDialnet IDGoogle Scholar ID

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2015 - 20193
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Subject: 595.132(72) ×

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    Four new species of Kinorhyncha from the Gulf of California, eastern Pacific Ocean
    (Zoologischer Anzeiger, 2019) Cepeda Gómez, Diego; Alvarez-Castillo, Lucía; Hermoso-Salazar, Margarita; Sánchez Santos, Nuria; Gómez, Samuel; Pardos Martínez, Fernando
    Kinorhynch specimens were studied from abyssal sediment samples collected during seven cruises at the Clarion-Clipperton Fracture Zone (Eastern Central Pacific), a vast area that will be mined for polymetallic nodules in a near future. This study is the first in a series focused on kinorhynchs mainly collected at the German zone following requirements of the International Seabed Authority (ISA), who demands identification of fauna associated with nodules previous to the concession of the exploitation license. A total of 18 species were found, of which three new Echinoderidae species are described herein. Cephalorhyncha polunga sp. nov. is easily discriminated from its congeners by the presence of pointed and prominent tergal extensions together with middorsal spines on segments 4–8, ventrolateral tubes on segment 2, lateroventral tubes on segment 5, lateroventral spines on segments 6–9 and midlateral tubes on segment 10; plus subdorsal type 2 glandular cell outlets on segment 2 and midlateral ones on segment 8. Echinoderes shenlong sp. nov. is characterized by middorsal spines on segments 4, 6, 8, lateroventral tubes on segment 5 and lateroventral spines on segments 6–9; glandular cell outlets type 2 are not present. Meristoderes taro sp. nov. is defined by the combination of long middorsal spines on segments 4–8, remarkably increasing in length on posterior segments; short laterodorsal tubes on segment 10, ventrolateral tubes on segment 2 and lateroventral tubes on segment 5, plus lateroventral spines on segments 6–9.
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    Deep-sea Kinorhyncha diversity of the polymetallic nodule fields at the Clarion-Clipperton Fracture Zone (CCZ)
    (Zoologischer Anzeiger, 2019) Sánchez Santos, Nuria; Pardos Martínez, Fernando; Martínez Arbizu, Pedro
    Kinorhynch specimens were studied from abyssal sediment samples collected during seven cruises at the Clarion-Clipperton Fracture Zone (Eastern Central Pacific), a vast area that will be mined for polymetallic nodules in a near future. This study is the first in a series focused on kinorhynchs mainly collected at the German zone following requirements of the International Seabed Authority (ISA), who demands identification of fauna associated with nodules previous to the concession of the exploitation license. A total of 18 species were found, of which three new Echinoderidae species are described herein. Cephalorhyncha polunga sp. nov. is easily discriminated from its congeners by the presence of pointed and prominent tergal extensions together with middorsal spines on segments 4e8, ventrolateral tubes on segment 2, lateroventral tubes on segment 5, lateroventral spines on segments 6e9 and midlateral tubes on segment 10; plus subdorsal type 2 glandular cell outlets on segment 2 and midlateral ones on segment 8. Echinoderes shenlong sp. nov. is characterized by middorsal spines on segments 4, 6, 8, lateroventral tubes on segment 5 and lateroventral spines on segments 6e9; glandular cell outlets type 2 are not present. Meristoderes taro sp. nov. is defined by the combination of long middorsal spines on segments 4e8, remarkably increasing in length on posterior segments; short laterodorsal tubes on segment 10, ventrolateral tubes on segment 2 and lateroventral tubes on segment 5, plus lateroventral spines on segments 6e9.
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    First records of Kinorhyncha from the Gulf of California: horizontal and vertical distribution of four genera in shallow basins with CO2 venting activity
    (Cahiers de Biologie Marine, 2015) Álvarez Castillo, Lucía; Hermoso Salazar, Margarita; Estradas-Romero, Alejandro; Prol-Ledesma, Rosa María; Pardos Martínez, Fernando
    The Wagner and Consag Basins, in the northern end of the Gulf of California are characterized by active CO2 gas vents. This venting activity causes a decrease in the pore water pH compared to other marine environments and the acidification of the bottom water is expected to affect the organisms that inhabit the sediments. In this study, we present the first records of four genera and ten “working species” of the phylum Kinorhyncha in Mexico. We also analyzed their horizontal and vertical distribution. Samples were collected at 40 soft bottom sites on board of the R/V “El Puma” (WAGNER-02 Expedition) during July-August 2010 with a Smith McIntyre grab and a syringe corer. At each station physicochemical variables were measured including pore water pH. In this study, Kinorhyncha represented 2.64% of the total meiofauna and it ranked fourth in dominance after Nematoda, Copepoda, and Polychaeta. Kinorhynchs densities ranged from zero to 24.05 ind.10 cm-2. We encountered a total of two families, four genera and ten “working species” of kinorhynchs. The family Pycnophyidae was represented by two genera Pycnophyes (two “working species”) and Kinorhynchus (five ”working species”) and the family Echinoderidae, two “working species” of the genus Echinoderes and one “working specie” of Fissuroderes were present. Kinorhynchs were mainly concentrated in the upper layers, with about 84% of the individuals present in the first four centimeters. This is the first ecological study of the phylum Kinorhyncha in Mexico and in a CO2 venting - low pH environment, registering also for the first time some data on the pH tolerance of these four kinorhynchs genera.