Browsing The Ryan Institute (Scholarly Articles) by Author "Fernández-Álvarez, Fernando Ángel"
Now showing items 1-7 of 7
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Born with bristles: New insights on the Kölliker’s organs of Octopus skin
Villanueva, Roger; Coll-Lladó, Montserrat; Bonnaud-Ponticelli, Laure; Carrasco, Sergio A.; Escolar, Oscar; Fernández-Álvarez, Fernando Ángel; Gleadall, Ian G.; Nabhitabhata, Jaruwat; Ortiz, Nicolás; Rosas, Carlos; Sánchez, Pilar; Voight, Janet R.; Swoger, Jim (Frontiers Media, 2021-05-10)The entire skin surface of octopus embryos, hatchlings and juveniles bears scattered tufts of tiny chitinous setae within small pockets, from which they can be everted and retracted. Known as Kölliker’s organs (KO), they ... -
El globito de Cthulhu: una nueva joya del Mediterráneo
Fernández-Álvarez, Fernando Ángel; Sanchez, Pilar; Villanueva, Roger (Quercus, 2021-03)[No abstract available] -
First record of the elusive oceanic squid Thysanoteuthis rhombus Troschel, 1857 (Cephalopoda: Thysanoteuthidae) in the Catalan coast
Fernández-Álvarez, Fernando Ángel; Colmenero, Ana I.; Barría, Claudio (Consejo Superior de Investigaciones Científicas, 2021)The diamondback squid Thysanoteuthis rhombus Troschel, 1857 is a large and elusive oceanic squid spe- cies. Here, we provide the first record of the species for the Catalan coast and integrate this finding in the current ... -
Global biodiversity of the genus Ommastrephes (Ommastrephidae: Cephalopoda): an allopatric cryptic species complex
Fernández-Álvarez, Fernando Ángel; Braid, Heather E.; Nigmatullin, Chingis M.; Bolstad, Kathrin S. R.; Haimovici, Manuel; Sánchez, Pilar; Sajikumar, Kurichithara K.; Ragesh, Nadakkal; Villanueva, Roger (Oxford University Press (OUP), 2020-03-20)Cryptic speciation among morphologically homogeneous species is a phenomenon increasingly reported in cosmopolitan marine invertebrates. This situation usually leads to the discovery of new species, each of which occupies ... -
The invasive land flatworm Obama nungara (Platyhelminthes: Geoplanidae) reaches a natural environment in the oceanic island of São Miguel (Açores)
Lago-Barcia, Domingo; González-López, José Rafael; Fernández-Álvarez, Fernando Ángel (Magnolia Press, 2020)We report a new finding of the invasive land flatworm Obama nungara Carbayo et al., 2016 in a natural reserve of the oceanic island of São Miguel (Açores, Portugal) at 947 meters of altitude. This is the first record for ... -
Morphological and molecular assessments of bobtail squids (Cephalopoda: Sepiolidae) reveal a hidden history of biodiversity
Fernández-Álvarez, Fernando Ángel; Sánchez, Pilar; Villanueva, Roger (Frontiers Media, 2021-01-20)Molecular species delimitation assists taxonomic decisions for challenging species, like cryptic species complexes. Bobtail squids (Family Sepiolidae Leach, 1817) are a very diverse group of benthic and nektonic small to ... -
Potentially handicapped but otherwise functional: Malformations in prey capture tools show no impacts on octopus life
Fernández-Álvarez, Fernando Ángel; Farré, Marc; Antoni Sánchez‐Márquez, Antoni; Villanueva, Roger; Escolar, Oscar; Navarro, Joan (Wiley, 2020-10-17)Larval mortality is a keystone ecological factor for many benthic octopus since it mostly occurs before their settlement in the sea bottom as benthic juveniles. The literature had revealed that records of adult animals ...