&lt;strong&gt;&lt;em&gt;Scyliorhinus ugoi,&lt;/em&gt; a new species of catshark from Brazil (Chondrichthyes: Carcharhiniformes: Scyliorhinidae) &lt;/strong&gt;

Soares, Karla D. A.; Gadig, Otto F. B.; Gomes, Ulisses Leite

doi:10.11646/zootaxa.3937.2.6

Cited by 15 publications

(24 citation statements)

References 5 publications

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“…The number of currently active marine fish taxonomists in the continent, however, is markedly lower than the number of freshwater taxonomists, a situation that naturally causes a slower pace of marine fish descriptions. With 7500 km of coastline, Brazil stands out as the most taxonomically active country in the region when marine fishes are considered, with > 40 species described since the turn of the century in groups as taxonomically and ecologically distinct as the Myxinidae (Mincarone, , ), Elasmobranchii (Soares et al ., ), Labrisomidae (Sazima et al ., ), Serranidae (Carvalho‐Filho & Ferreira, ) and Ophidiiformes (Nielsen et al ., ), to name just a few examples (Eschmeyer et al ., ). More than 15 species of marine fishes have also been described from Chilean waters in the last decades, most of them based on specimens collected, as expected, in regions previously insufficiently explored such as deep‐sea habitats and oceanic islands (Meléndez, ).…”

Section: Species Richness Estimatesmentioning

confidence: 99%

“…Fishing surveys focused on the evaluation of biological parameters of fish stocks along the south‐western Atlantic shelf and slope have led to significant improvements in the knowledge of the diversity and biology of deep‐sea fishes. As result of these and similar initiatives, an impressive number of new distribution records has been provided and several new species were discovered in the past decade, covering a wide range of taxonomic groups, including Myxinidae (Mincarone, ; ), Scyliorhinidae (Soares et al ., ), Rajidae (Carvalho et al ., ), Anguilliformes (Melo, ; Melo et al ., ); Sternoptychidae (Lima et al ., ), Chiasmodontidae (Melo, ), Ophidiiformes (Franco et al ., ; Mincarone et al ., ; Nielsen, ; Nielsen et al ., ; Nielsen et al ., ), Stephanoberyciformes (Mincarone et al ., ), Gadiformes (Melo et al ., ), Ipnopidae (Franco et al ., ), Zoarcidae (Anderson & Mincarone, ; Mincarone & Anderson, ) and Bramidae (Carvalho‐Filho et al ., ).…”

Section: Habitatsmentioning

confidence: 99%

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Fish biodiversity and conservation in South America

Reis

Albert

Dario

et al. 2016

Journal of Fish Biology

555

393

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The freshwater and marine fish faunas of South America are the most diverse on Earth, with current species richness estimates standing above 9100 species. In addition, over the last decade at least 100 species were described every year. There are currently about 5160 freshwater fish species, and the estimate for the freshwater fish fauna alone points to a final diversity between 8000 and 9000 species. South America also has c. 4000 species of marine fishes. The mega-diverse fish faunas of South America evolved over a period of >100 million years, with most lineages tracing origins to Gondwana and the adjacent Tethys Sea. This high diversity was in part maintained by escaping the mass extinctions and biotic turnovers associated with Cenozoic climate cooling, the formation of boreal and temperate zones at high latitudes and aridification in many places at equatorial latitudes. The fresh waters of the continent are divided into 13 basin complexes, large basins consolidated as a single unit plus historically connected adjacent coastal drainages, and smaller coastal basins grouped together on the basis of biogeographic criteria. Species diversity, endemism, noteworthy groups and state of knowledge of each basin complex are described. Marine habitats around South America, both coastal and oceanic, are also described in terms of fish diversity, endemism and state of knowledge. Because of extensive land use changes, hydroelectric damming, water divergence for irrigation, urbanization, sedimentation and overfishing 4-10% of all fish species in South America face some degree of extinction risk, mainly due to habitat loss and degradation. These figures suggest that the conservation status of South American freshwater fish faunas is better than in most other regions of the world, but the marine fishes are as threatened as elsewhere. Conserving the remarkable aquatic habitats and fishes of South America is a growing challenge in face of the rapid anthropogenic changes of the 21st century, and deserves attention from conservationists and policy makers.

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Section: Species Richness Estimatesmentioning

confidence: 99%

Section: Habitatsmentioning

confidence: 99%

Fish biodiversity and conservation in South America

Reis

Albert

Dario

et al. 2016

Journal of Fish Biology

555

393

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“…A recent taxonomic review of the S. haeckelii-besnardi complex [89] confirms that S. besnardi Springer and Sadowsky 1970 is a junior synonym of S. haeckelii with a grade on the color pattern [90,91] (Figure 4). A new species (S. ugoi) was described on the northeast slope based on specimens with a lighter color pattern on the dorsal surface when still alive [92]. This new species is restricted to upper depths of the continental slope (100-500 m] and the TAMAR Project (Brazilian Marine Turtles Project) succeeded on its captured reproduction.…”

Section: Chondrichthyes -Multidisciplinary Approachmentioning

confidence: 99%

Deep-Water Sharks, Rays, and Chimaeras of Brazil

Rincon¹,

Mazzoleni²,

OnoderaPalmeira³

et al. 2017

Chondrichthyes - Multidisciplinary Approach

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The deep-water fishery in Brazil is currently in expansion due to depletion of most neritic economic species. This increasing deep-water effort brings concern on the bycatch impact, its specific composition, the need for capture's evaluation and development of bycatch reduction devices. The impact is particularly aggressive on deep-water elasmobranchs, which have an extreme ecological k-strategy due to their reproductive constraints (lower fecundity and late first maturity age). Scientific deepwater surveys and intensive research programs (REVIZEE) along the past decade indicate that Brazilian elasmobranch diversity is higher than previously imagined. However, the deep-water fishery threatens this poorly known community of sharks and rays on the Brazilian continental slope as they become bycatch of a fast-growing and uncontrolled fishery. The recent study case of the monkfish (Lophius gastrophysus) fishery dynamics, well presented and discussed by the Brazilian scientific community, provided evidence of the need of bycatch-specific monitoring programs and fast-response fishery regulations. The present work discusses the Brazilian deep-water elasmobranch bycatch problem under the light of its biological diversity and completely unknown population status. Suggestions and management considerations are presented in order to coordinate and manage the establishment and growth of this deep-water fishery in Brazil.

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“…Many studies have focused on biological aspects and morphological characteristics of the lesser spotted dogfish Scyliorhinus canicula (Linnaeus, ), but little is known about other species of the genus. Sexual dimorphism in Scyliorhinus has been previously reported in their colour pattern (Soares et al, ), dermal denticles (Crooks et al, ), teeth, jaws and head measurements (Ellis & Shackley, ; Litivinov, ; Erdoğan et al, ; Filiz & Taşkavak, 2006), mouth shape (Soares et al, , ), and ampullae of Lorenzini (Crooks & Waring, ). Many studies have been published about the differences in body size between the sexes of catshark species, but only few present more detailed information on proportional dimensions (Ellis & Shackley, ; Erdoğan et al, ; Filiz & Taskavak, ).…”

mentioning

confidence: 90%

“…The genus Scyliorhinus Blainville 1816 (family Scyliorhinidae) comprises 16 species with varied colour patterns (Ebert et al, ). These species are mostly distributed around the Atlantic Ocean but some species are also found in the waters of Japan and the north‐west coast of Madagascar (Compagno et al, ; Ebert et al, ; Soares et al, , ; Springer, ). Many studies have focused on biological aspects and morphological characteristics of the lesser spotted dogfish Scyliorhinus canicula (Linnaeus, ), but little is known about other species of the genus.…”

mentioning

confidence: 99%