Chondrichthyan Diversity, Conservation Status, and Management Challenges in Costa Rica

Espinoza, Mario; Díaz, Eric Montero; Angulo, Arturo; Hernández, Sebastián; Clarke, Tayler M.

doi:10.3389/fmars.2018.00085

Cited by 32 publications

(34 citation statements)

References 85 publications

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“…The species richness of Mexican chimaeras, sharks, skates, and rays, when compared to other Latin American countries, is above the 165 species reported for Brazil ( Rosa and Gadig 2014 ); the 117 from Colombia (62 Pacific coast species and 75 for the Caribbean Sea; Navia et al 2016 ); the 99 for Costa Rica (12 Caribbean Sea, 75 Pacific, and 12 amphi-American; Bussing and López 1999 , 2010 , Espinoza et al 2018 ); the 98 for Venezuela (60 sharks, 37 rays, and one chimera; Cervigón and Alcalá 1999 , Tavares and López 2009 ), and the 38 species for Ecuador ( Jiménez-Prado and Beárez 2004 , Estupiñan-Montaño et al 2016 ). This diversity of Chondrichthyes inhabiting the EEZ of Mexico (approximately 3,000,150 km 2 ) makes it a megadiverse country for this group of species.…”

Section: Discussionmentioning

confidence: 79%

Updated checklist of the extant Chondrichthyes within the Exclusive Economic Zone of Mexico

Ehemann¹,

González-González²,

Chollet-Villalpando³

et al. 2018

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The checklist presented in this study includes the latest taxonomic and systematic modifications and updates (early 2018) for the Chondrichthyes that inhabit the Exclusive Economic Zone (EEZ) of Mexico. The list is based on a literature review of field-specific books, scientific publications and database information from collections and museums worldwide available online such as, the Ocean Biogeographic Information System (OBIS), Global Biodiversity Information Facility (GBIF), Encyclopedia of Life (EOL), iSpecies, FishBase and the National Biodiversity Information System (SNIB–CONABIO). Information was cross-referenced with digital taxonomic systems such as the Catalog of Fishes of the California Academy of Sciences, the World Register of Marine Species (WoRMS), and the Integrated Taxonomic Information System (ITIS). There is a total of two subclasses two divisions, 13 orders, 44 families, 84 genera, and 217 species that represent approximately 18% of all living and described species of chondrichthyans worldwide. For the Mexican Pacific and the Gulf of California, 92 species of chondrichthyans are listed compared to 94 species for the Gulf of Mexico and the Caribbean Sea. Additionally, 31 species listed occur on both coasts of Mexico. The species richness of the Mexican chondrichthyans will surely continue to increase, due to the exploration of deep-water fishing areas in the EEZ.

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Section: Discussionmentioning

confidence: 79%

Updated checklist of the extant Chondrichthyes within the Exclusive Economic Zone of Mexico

Ehemann¹,

González-González²,

Chollet-Villalpando³

et al. 2018

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“…Comparing basins, the 90 Caribbean elasmobranch species represented 86.5 % of the species reported for the Greater Caribbean coastal zone (Robertson et al, 2015) and 42.2 % of the species reported for the North West Atlantic (Weigmann, 2016), whereas representativeness was lower for the Pacific basin, with 58.2 % of the species reported by Robertson & Allen (2015) for the Tropical Eastern Pacific and 43.8 % of the species to the North Eastern Pacific (Weigmann, 2016). Shark and batoid richness for the Colombian Caribbean was greater than that of Venezuela and Panama (Robertson et al, 2015), whereas shark and batoid richness for the Pacific was lower than that reported by Martínez-Ortiz & García-Domingo (2013) for Ecuador (61 shark species and 43 batoid species), by Cornejo et al (2015) for Peru (66 shark species and 43 batoids species) and by Espinoza et al (2018) for Costa Rica (81 elasmobranch species). However, it should be noted that Peru and Ecuador are strongly influenced by fauna from temperate waters of the southern Pacific, which increases significantly their diversity, as they provide species from different biogeographic provinces.…”

Section: Discussionmentioning

confidence: 87%

“…However, it should be noted that Peru and Ecuador are strongly influenced by fauna from temperate waters of the southern Pacific, which increases significantly their diversity, as they provide species from different biogeographic provinces. Elasmobranch richness for the tropical zone of the Pacific basin of Colombia was greater than that of Panama in both coasts and greater than those of Costa Rica in the Caribbean Sea (Robertson & Allen, 2015;Espinoza et al, 2018). Despite the great species richness found in a regional context, Colombia was far below shark biodiversity hotspots, which have been identified in southeastern Japan, Taiwan, and Australia, with nearly 85 species per 1 • x 1 • cell.…”

Section: Discussionmentioning

confidence: 99%

Checklist of marine elasmobranchs of Colombia

Navia¹,

Mejía‐Falla²

2019

Univ. Sci.

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A review and update to the shark and ray species recorded for the marine waters of Colombia was carried out. A total of 206 species had been recorded in the literature, of which 138 species (76 sharks and 62 rays) could be confirmed from museum records, catches, photographs, and videos. No evidence was found for 25 species, but their distribution included neighboring countries, and they were therefore classified as possible based on distribution. Thirty-six species were classified as improbable based on distribution and seven more were considered as misidentifications. The inventory of confirmed species includes 57 genera (30 shark and 27 batoid genera) and 34 families (18 shark and 16 batoid families). There was notably an addition of 26 confirmed species since 2007 as well as numerous modifications to group systematics and taxonomy, especially for batoids. The total number of confirmed elasmobranchs represented 12.1 % of species known worldwide, and could even reach 14.5 %, indicating that Colombia has one of the richest cartilaginous fish faunas in Latin America, behind Mexico and Brazil. This demonstrates that although Colombia cannot be considered an elasmobranch biodiversity hotspot or site of elasmobranch endemism globally, it does have good representativity of these species´ biodiversity at the regional level, especially regarding amphi-American species.

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“…The chondrichthyan diversity of the area can be considered among the top four Latin American countries after Mexico with 219 species (Ehemann et al, ; Wakida‐Kusunoki et al, ), Brazil with 165 species (Rosa & Gadig, ) and Colombia with 142 species (García, ; Mejía‐Falla & Navia, ). Followed by Peru with 115 (Cornejo et al, ), Ecuador with 107 (Jiménez‐Prado & Béarez, ), Uruguay with 100 (Domingo et al, ), Costa Rica with 99 (Busing & López, ; Espinoza et al, ) and Chile with 96 species (Lamilla, ). Venezuela is the country with the third smallest marine area (851,552 km 2 ) of all countries previously mentioned, after Uruguay and Costa Rica (Flanders Marine Institute, ).…”

Section: Discussionmentioning

confidence: 99%

Updated taxonomic list and conservation status of chondrichthyans from the exclusive economic zone of Venezuela, with first generic and specific records

Ehemann

González-González

Tagliafico

et al. 2019

Journal of Fish Biology

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Using the last taxonomic review of chondrichthyans of the world, we selected the species distributed in the north-western Atlantic Ocean (NWA) and compared it with the available published literature related to the class Chondrichthyes in the Venezuelan exclusive economic zone. We also revised information from worldwide databases such as: FAO (NWA-31 area), GBIF, iSpecies, IUCN and OBIS, as well as available museum collection databases. The taxonomic validity was checked using the Catalogue of Fishes of the California Academy of Sciences and recent references. The past published Venezuelan lists of chondrichthyans combined included nine orders, 30 families and 108 species. The updated list with 12 orders, 36 families and 122 species increased by three new orders, six families, three shark genera, nine shark species (one replacing another species), one chimaera genus, two chimaera species, three batoid genera and six batoid species (two replacing other species). Four holotype specimens (two sharks and two rays) are deposited in Venezuelan Museums. Most of the species have an IUCN conservation status, including four species catalogued as Critically Endangered, six as Endangered and 18 species as Vulnerable. Deepsea fisheries, scientific exploration and taxonomic/genetic revisions might add future increments to the Venezuelan chondrichthyan list. K E Y W O R D S batoids, Caribbean Sea, chimaeras, elasmobranchii, holocephali, sharks

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Chondrichthyan Diversity, Conservation Status, and Management Challenges in Costa Rica

Cited by 32 publications

References 85 publications

Updated checklist of the extant Chondrichthyes within the Exclusive Economic Zone of Mexico

Updated checklist of the extant Chondrichthyes within the Exclusive Economic Zone of Mexico

Checklist of marine elasmobranchs of Colombia

Updated taxonomic list and conservation status of chondrichthyans from the exclusive economic zone of Venezuela, with first generic and specific records

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