Aspects of the reproductive biology of the data-deficient Mustelus minicanis and M. norrisi (Chondrichthyes: Triakidae) in the southern Caribbean Sea

Tagliafico, Alejandro; Rago, Néstor; Rangel, Salomé; Broadhurst, Matt K.

doi:10.1007/s10641-017-0606-1

Cited by 7 publications

(4 citation statements)

References 30 publications

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“…At present much of this harvest is as a by-product when targeting more valuable species and especially Mustelus spp. (Tagliafico et al, 2017). When catches of the latter species are poor, or large abundances of S. dumeril occur in some areas, then direct targeting could occur.…”

Section: Discussionmentioning

confidence: 99%

“…90–300 m) to target Mustelus spp. (Tagliafico et al ., ). Other elasmobranchs, however, are also caught as so‐called by‐product and sold, including the Atlantic angel shark, Squatina dumeril LeSueur 1818 (Tagliafico et al ., ).…”

Section: Introductionmentioning

confidence: 97%

“…More recently, in 1063 response to declining catches (Mendoza, 2015), there has been a spatial shift in effort to deeper water (c. 90-300 m) to target Mustelus spp. (Tagliafico et al, 2017). Other elasmobranchs, however, are also caught as so-called by-product and sold, including the Atlantic angel shark, Squatina dumeril LeSueur 1818 (Tagliafico et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Reproductive aspects of the Atlantic angel shark Squatina dumeril in the southern Caribbean Sea

Tagliafico

Rangel

Broadhurst

2017

Journal of Fish Biology

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The maturity and reproduction of the Atlantic angel shark Squatina dumeril were assessed using 77 females (29·2-110·4 cm total length; L ) and 269 males (58·7-108·2 cm L ) harvested by artisanal gillnetters off Venezuela. The biased sex ratio implied segregation or sex-specific gear selectivity. Based on the development of the reproductive tract, 50% L at sexual maturity (L , mean ± s.e.) for females and males were estimated at 86·14 ± 0·64 and 81·55 ± 0·12 cm, respectively. Uterine fecundity ranged between one and six and with a maximum embryo size of 25·7 cm L . Gravid females were observed from August to December, including those close to parturition and while the gestation period was not confirmed, the size of ovarian follicles among some specimens implied protraction. The low fecundity of the species supports close monitoring of catches.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Reproductive aspects of the Atlantic angel shark Squatina dumeril in the southern Caribbean Sea

Tagliafico

Rangel

Broadhurst

2017

Journal of Fish Biology

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“…(2018) study, which proposed the creation of the first southern Caribbean Island marine ecological corridor, stretching from La Orchila Island in Venezuela to Curaçao and Bonaire (Dutch Antilles). In addition, based on recent chondrichthyan fisheries studies from eastern Venezuela (e.g., Cordovés et al, 2009;Giménez-Hurtado et al, 2010;Marquez et al, 2019;Tagliafico et al, 2012Tagliafico et al, , 2016Tagliafico et al, , 2017Tagliafico et al, , 2019Tagliafico et al, , 2021, there is enough scientific information to consider adding the islands of La Tortuga, Margarita and Cubagua to this marine ecological corridor polygon.…”

Section: Citizen Science Datamentioning

confidence: 99%

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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Maturation and reproduction of Squalus cubensis and Squalus cf. quasimodo (Squalidae, Squaliformes) in the southern Caribbean Sea

2018

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Aspects of the reproductive biology of the data-deficient Mustelus minicanis and M. norrisi (Chondrichthyes: Triakidae) in the southern Caribbean Sea

Cited by 7 publications

References 30 publications

Reproductive aspects of the Atlantic angel shark Squatina dumeril in the southern Caribbean Sea

Reproductive aspects of the Atlantic angel shark Squatina dumeril in the southern Caribbean Sea

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

Maturation and reproduction of Squalus cubensis and Squalus cf. quasimodo (Squalidae, Squaliformes) in the southern Caribbean Sea

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