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Vieira S.,Direccao de Servicos de Investigacao das Pescas | Biscoito M.,Museu de Histo ria Natural do Funchal | Encarnacao H.,Museu de Histo ria Natural do Funchal | Delgado J.,Direccao de Servicos de Investigacao das Pescas | Pietsch T.W.,University of Washington
Copeia | Year: 2013

A sexually parasitized female of the deep-sea ceratioid anglerfish Centrophryne spinulosa is described for the first time, bringing the number of ceratioid species known to exhibit sexual parasitism to 24 and the number of ceratioid families to six. The attached pair represents the largest known individuals of both sexes. The extreme and puzzling rarity of parasitized females in some of the best known ceratioid species is discussed. While it has been hypothesized that some ceratioid taxa reproduce solely by temporary male-female attachment, it now seems reasonable to expect the eventual discovery of parasitized females in any of the remaining ceratioid taxa. © 2013 by the American Society of Ichthyologists and Herpetologists. Source

Freitas M.,Estacao de Biologia Marinha do Funchal | Almeida A.J.,University of Lisbon | Delgado J.,Direccao de Servicos de Investigacao das Pescas | Gonzalez J.A.,Instituto Canario Of Ciencias Marinas | And 2 more authors.
Acta Ichthyologica et Piscatoria | Year: 2011

The smalleyed rabbitfish, Hydrolagus affinis (de Brito Capello, 1868) (Chimaeridae), is recorded from the archipelago of Madeira for the first time, based on seven specimens caught between 1200 and 2500 m depth. This record extends the previously known range of distribution of this species, and also confirms its vertical distribution down to 2500 m. Additional material collected from the Canary Islands and the Azores was used for comparison. Source

Biscoito M.,Museu Municipal do Funchal Historia Natural | Delgado J.,Direccao de Servicos de Investigacao das Pescas | Gonzalez J.A.,Instituto Canario Of Ciencias Marinas | Stefanni S.,University of The Azores | And 4 more authors.
Cybium | Year: 2011

The black scabbardfish has been subjected to a commercial fishery in the waters of the archipelago of Madeira for more than 150 years, which is probably the oldest deep-sea commercial fishery in the world. Over this period the presence of two sympatric species (Aphanopus carbo Lowe, 1839 and A. intermedius Parin, 1983) in the area has been ignored, mainly due to the difficulty in separating the two species using external morphological characters. The need for a more accurate management of this highly important resource, reinforced by an emergent fishery in Portugal mainland and elsewhere in the North Atlantic, justified a new effort for morphological characterization of the two species, based on the largest genetically validated sample obtained to date. The results presented in this paper demonstrate that it is possible to discriminate the two species on the bases of meristic and morphometric data using discriminant analysis. The outcome of this analysis is supported by the genetic identification based on CR and COI sequences.addition, a redescription of A. intermedius incorporating the new character ranges found is presented. Source

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