On mobulid rays and metals: Metal content for the first Mobula mobular record for the state of Rio de Janeiro, Brazil and a review on metal ecotoxicology assessments for the Manta and Mobula genera

Hauser‐Davis, Rachel Ann; Amorim-Lopes, Catarina; Araujo, Nathan Lagares Franco; Rebouças, Manasi; Gomes, Ricardo Andrade; Rocha, Rafael Christian Chávez; Saint’Pierre, Tatiana Dillenburg; Santos, Luciano Neves dos

doi:10.1016/j.marpolbul.2021.112472

Cited by 10 publications

(8 citation statements)

References 34 publications

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“…Despite reducing the devil ray species count by one, this study has confirmed the presence of three new mobulids for Venezuela In general, the specimen size ranges recorded from the authors' fisheries data were similar to those previously reported for the western Atlantic Ocean (e.g., Childs, 1997;Ehemann et al, 2017;Gadig et al, 2003;Hauser-Davis et al, 2021;Mendonça et al, 2018Mendonça et al, , 2020Tagliafico et al, 2014) and those of the eastern Pacific Ocean populations (e.g., Cuevas-Zimbr on et al, 2012;Gaskins, 2019;González-González et al, 2020;Serrano-L opez et al, 2021). Notably, this study provides new morphometrics in terms of maximum sizes for M. tarapacana, M. thurstoni and M. mobular along the western Atlantic coast.…”

Section: Citizen Science Datasupporting

confidence: 88%

“…In general, the specimen size ranges recorded from the authors’ fisheries data were similar to those previously reported for the western Atlantic Ocean ( e.g ., Childs, 1997; Ehemann et al ., 2017; Gadig et al ., 2003; González‐González & Ehemann, 2019; Hauser‐Davis et al ., 2021; Mendonça et al ., 2018, 2020; Tagliafico et al ., 2014) and those of the eastern Pacific Ocean populations ( e.g ., Cuevas‐Zimbrón et al ., 2012; Gaskins, 2019; González‐González et al ., 2020; Serrano‐López et al ., 2021). Notably, this study provides new morphometrics in terms of maximum sizes for M .…”

Section: Discussionmentioning

confidence: 99%

“…Including the putative manta ray species (Hinojosa-Alvarez et al, 2016), six mobulid species are reported for the western Atlantic Ocean: The oceanic manta ray, Mobula birostris (Walbaum, 1792) Menni & Stehmann, 2000;Milessi & Oddone, 2003;Mendonça et al, 2012;De Boer et al, 2015;Del Moral-Flores et al, 2015;Last et al, 2016;Ehemann et al, 2018Ehemann et al, , 2019Stevens et al, 2018;Mejía-Falla & Navia, 2019;Pate & Marshall, 2020;Trujillo-Cordova et al, 2020), the Caribbean manta ray, M. cf. birostris (Walbaum, 1792) (Bucair, Venables, et al, 2021;Hinojosa-Alvarez et al, 2016;Pate & Marshall, 2020;Stevens et al, 2018), the Atlantic pygmy devil ray, Mobula hypostoma (Bancroft, 1831) (Campbell & Munroe, 1974;Cousseau & Menni, 1983;Del Moral-Flores et al, 2015Ehemann et al, 2018Ehemann et al, , 2019Jones et al, 2020;Last et al, 2016;Menni & Stehmann, 2000;Stevens et al, 2018), the spinetail devil ray Mobula mobular (Bonnaterre, 1788), Del Moral-Flores et al, 2015;Mas et al, 2015;Last et al, 2016;Ehemann et al, 2018;Stevens et al, 2018;Hauser-Davis et al, 2021), the sicklefin devil ray Mobula tarapacana (Philippi, 1892) (Childs, 1997;De Boer et al, 2015;Del Moral-Flores et al, 2015;Ehemann et al, 2018;…”

Section: Introductionmentioning

confidence: 99%

“…cf. birostris (Walbaum, 1792) (Bucair, Venables, et al ., 2021; Hinojosa‐Alvarez et al ., 2016; Pate & Marshall, 2020; Stevens et al ., 2018), the Atlantic pygmy devil ray, Mobula hypostoma (Bancroft, 1831) (Campbell & Munroe, 1974; Cousseau & Menni, 1983; Del Moral‐Flores et al ., 2015, 2020; Ehemann et al ., 2018, 2019; Jones et al ., 2020; Last et al ., 2016; Menni & Stehmann, 2000; Stevens et al ., 2018), the spinetail devil ray Mobula mobular (Bonnaterre, 1788), Del Moral‐Flores et al ., 2015; Mas et al ., 2015; Last et al ., 2016; Ehemann et al ., 2018; Stevens et al ., 2018; Hauser‐Davis et al ., 2021), the sicklefin devil ray Mobula tarapacana (Philippi, 1892) (Childs, 1997; De Boer et al ., 2015; Del Moral‐Flores et al ., 2015; Ehemann et al ., 2018; Last et al ., 2016; Stevens et al ., 2018) and the bentfin devil ray, Mobula thurstoni (Lloyd 1908) (Del Moral‐Flores et al ., 2015; Ehemann et al ., 2018; Gadig et al ., 2003; Last et al ., 2016; Mas et al ., 2015; Mendonça et al ., 2012, 2018; Stevens et al ., 2018). Nonetheless, reports are generally scarce, and species within this family are commonly misidentified because of taxonomic uncertainties (Stevens et al ., 2018; Stewart, Jaine, et al ., 2018).…”

Section: Introductionmentioning

confidence: 99%

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Manta and devil ray species occurrence and distribution in Venezuela, assessed through fishery landings and citizen science data

Ehemann

Acosta-Rodríguez

Tagliafico

et al. 2022

Journal of Fish Biology

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Manta and devil rays (collectively mobulids) belong to the monogeneric Mobulidae, which currently comprises 10 species, including a putative third manta ray species (Mobula cf. birostris). These large planktivorous rays are distributed throughout the tropical and subtropical oceans of the world. To date, six mobulid species are reported for the western Atlantic Ocean and the Caribbean Sea, three of which had previously been reported in Venezuela (Mobula birostris, Mobula tarapacana and Mobula hypostoma). A preliminary assessment of fishery landings and citizen science data was conducted to further the scientific knowledge of mobulid species in Venezuela. Fisheries landing data were collected at Margarita Island between 2006 and 2007, and again in 2014. Data mining of internet search engines and social media platforms spanning the past two decades was also conducted. A total of 117 individuals of five mobulid species were recorded: Mobula sp. (n = 27), M. birostris (n = 36), M. tarapacana (n = 3), Mobula mobular (n = 26),Mobula thurstoni (n = 14) and M. cf. birostris (n = 11). The latter three species are the first confirmation of these species in Venezuela. The authors found no records of the previously reported M. hypostoma during this study. Although the occurrence of M. hypostoma in Venezuela remains possible because of the broad regional range of this species, its current presence in Venezuela is invalidated given the repeated misidentifications which have occurred in previous publications. The results of this study increase the number of reported mobulid ray species in Venezuela to five (excluding M. hypostoma). The overall data from juvenile manta rays and pregnant M. mobular and M. thurstoni recorded in this study, combined with the occurrence of all but one species of mobulid ray found in the western Atlantic Ocean, suggest Venezuela provides important habitat for this threatened family of rays.

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Section: Citizen Science Datasupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Manta and devil ray species occurrence and distribution in Venezuela, assessed through fishery landings and citizen science data

Ehemann

Acosta-Rodríguez

Tagliafico

et al. 2022

Journal of Fish Biology

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“…However, despite their environmental importance, the global abundance of oceanic sharks and rays has declined by 71% since 1970 due to an 18-fold increase in relative fishing pressure [ 2 ]. In addition, other pressures associated with climate change and chemical contamination of the oceans are also significant negative stressors to this taxonomic group [ 3 , 4 ]. In the long term, these pressures jeopardize populations, a problem compounded by the fact that sharks and rays are a long-lived and a late-maturing species, thus increasing the risk of global extinction to the point that three-fourths of all elasmobranch species are threatened with extinction [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

New Occurrences of the Tiger Shark (Galeocerdo cuvier) (Carcharhinidae) off the Coast of Rio de Janeiro, Southeastern Brazil: Seasonality Indications

Aximoff

Cumplido

Rodrigues

et al. 2022

Animals

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The tiger shark Galeocerdo cuvier (Péron & Lesueur, 1822) (Carcharhinidae) is classified as near-threatened along the Brazilian coast, in line with its global categorization. Although Rio de Janeiro, located in southeastern Brazil, is internationally identified as a priority shark conservation area, many shark species, including tiger sharks, are landed by both industrial and artisanal fisheries in this state. However, there is a lack of detailed information on the species capture pressures and records for the state of Rio de Janeiro. Therefore, the aims of this study were to expand the tiger shark record database and to improve upon future conservation and management strategies. Tiger shark records from four coastal Rio de Janeiro regions were obtained by direct observation. The information obtained from fishery colonies/associations, environmental guards, researchers, and scientific articles, totaling 23 records, resulted in an approximately 5-fold increase in the number of tiger shark records off the coast of the state of Rio de Janeiro. A possible seasonality pattern concerning the size of the captured/observed animals was noted, emphasizing the need to consider the coast of Rio de Janeiro as an especially relevant area for at least part of the life history of tiger sharks.

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Occurrence, distribution and threats to mobulid rays in Brazil: A review and updated database

Bucair,

Mendonça,

Santos

et al. 2024

Aquatic Conservation

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Mobulid rays are medium‐ to large‐sized pelagic‐dwelling planktivorous elasmobranchs that are circumglobally distributed. Brazil has a high diversity of Mobula species, with five of the nine globally valid species and one additional putative new species. Brazil represents a substantial knowledge gap concerning the ecology, distribution and threats to mobulid rays. In global distribution analyses, several species have been underrepresented along the Brazilian coast. The dataset is composed of information from peer‐reviewed and grey literature, as well as data from scientific expeditions, citizen science collaboration, social media and local news. We found 6,450 records of manta and devil rays along the Brazilian coast, including Mobula tarapacana, Mobula mobular, Mobula thurstoni, Mobula hypostoma, Mobula birostris and the putative new species (Mobula cf. birostris). Our results revealed alarmingly high captures, such as 4.5 tons of M. hypostoma in a single fishery cruise and 809 individuals of Mobula spp. from a single fleet during one year in the Southeastern region. These findings evidence the fisheries' threats to mobulid species in Brazil and highlight previously unnoted species records, such as the occurrence of M. hypostoma on the entire Brazilian continental shelf, including estuaries and M. tarapacana in coastal regions. Integrative information on the occurrence, distribution, and threats to mobulid rays on local and global scales is crucial to supporting strategies for their effective management and conservation.

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On mobulid rays and metals: Metal content for the first Mobula mobular record for the state of Rio de Janeiro, Brazil and a review on metal ecotoxicology assessments for the Manta and Mobula genera

Cited by 10 publications

References 34 publications

Manta and devil ray species occurrence and distribution in Venezuela, assessed through fishery landings and citizen science data

Manta and devil ray species occurrence and distribution in Venezuela, assessed through fishery landings and citizen science data

New Occurrences of the Tiger Shark (Galeocerdo cuvier) (Carcharhinidae) off the Coast of Rio de Janeiro, Southeastern Brazil: Seasonality Indications

Occurrence, distribution and threats to mobulid rays in Brazil: A review and updated database

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