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Schieber JJ, Fahy DP, Carlson JK, Kerstetter DW. Age, growth and maturity of the yellow stingray (Urobatis jamaicensis), a biannually reproductive tropical batoid. JOURNAL OF FISH BIOLOGY 2023; 102:1281-1295. [PMID: 36895092 DOI: 10.1111/jfb.15374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 03/08/2023] [Indexed: 06/09/2023]
Abstract
Urobatis jamaicensis is a coastal batoid species affected by habitat loss and small-scale exploitation from fisheries and the aquarium trade, yet the life-history information available is limited. This is the first study to assess the vertebral centra from 195 stingrays to estimate age and growth patterns, and compare them with the biannual reproductive pattern previously reported for this species. Age-at-size data were compared using five different growth models and found a two-parameter von Bertalanffy growth function (VBGF), the Gompertz model and a modified VBGF fit best for males, females and sexes combined, respectively. Maturity was achieved before 1 year. However, growth did not cease with the onset of maturity, but instead slowed down. Results from marginal increment analysis and edge analysis indicated a nonannual somatic growth pattern with influences from the biannual reproduction cycle where peaks in resource allocation may be focused on ovulation rather than growth during March when larger brood sizes are present, while resources may be allocated more towards growth during August and September when brood sizes are generally smaller. These results may be used as a proxy for species with similar reproductive patterns or for those that lack annual or seasonal growth patterns.
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Affiliation(s)
- Jessica J Schieber
- Halmos College of Arts and Sciences, Nova Southeastern University, 8000 North Ocean Drive, Dania Beach, Florida, 33004, USA
| | - Daniel P Fahy
- Halmos College of Arts and Sciences, Nova Southeastern University, 8000 North Ocean Drive, Dania Beach, Florida, 33004, USA
| | - John K Carlson
- National Oceanic and Atmospheric Association, National Marine Fisheries Service, 3500 Delwood Beach Road, Panama City, Florida, 32408, USA
| | - David W Kerstetter
- Halmos College of Arts and Sciences, Nova Southeastern University, 8000 North Ocean Drive, Dania Beach, Florida, 33004, USA
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2
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Klangnurak W, Arunrugstichai S, Manopawitr P, Krajangdara T. DNA-based species identification of shark fins traded in thai markets. CONSERV GENET 2023; 24:1-10. [PMID: 37363049 PMCID: PMC10105147 DOI: 10.1007/s10592-023-01519-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/21/2023] [Indexed: 06/28/2023]
Abstract
Shark fins are among the most highly prized seafood products in the world with massive consumption in Asia over the past several decades. The demand for shark fins is a major driver of the enormous population declines of elasmobranchs that are generally vulnerable to overexploitation. This study aims to better understand the species composition of shark fin products in Thailand and their conservation statuses by using DNA-based species identification. Various types and sizes of shark fins were collected from 4 locations in Thailand. DNA barcoding method based on a fragment of the cytochrome c oxidase subunit I (COI) gene was applied to species identification. Fins from at least 15 shark species were found from Thailand's markets. The spottail shark (Carcharhinus sorrah) and the night shark (Carcharhinus signatus) were the two dominant species presented in this study. 34% of identifiable samples are the species that have not been record in this region. 62% of species detected from the fin samples are categorized under the threatened categories of IUCN Red List. Species composition reported in shark fin products potentially helps indicate the appropriate conservation action and increases awareness from monitoring the trade in elasmobranch products. Supplementary Information The online version contains supplementary material available at 10.1007/s10592-023-01519-0.
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Affiliation(s)
- Wanlada Klangnurak
- Department of Animal Production Technology and Fishery, School of Agricultural Technology, King Mongkut’s Institute of Technology Ladkrabang, Ladkrabang, Bangkok, 10520 Thailand
| | - Sirachai Arunrugstichai
- Aow Thai Marine Ecology Center, FREC Bangkok, 77 Nakhon Sawan Rd, Wat Sommanat, Pom Prap Sattru Phai, Bangkok, 10100 Thailand
| | | | - Tassapon Krajangdara
- Phuket Marine Fisheries Research and Development Center, Department of Fisheries, Phuket, Thailand
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Investigating an Unknown Biodiversity: Evidence of Distinct Lineages of the Endemic Chola Guitarfish Pseudobatos percellens Walbaum, 1792 in the Western Atlantic Ocean. DIVERSITY 2023. [DOI: 10.3390/d15030344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
Anthropogenic actions have affected marine species for a long time, through overexploitation of natural stocks and habitat degradation, influencing the life strategies of several taxa, especially rays and sharks, which have suffered significant population declines in recent years. Therefore, conservation actions and stock management have become paramount. In this regard, chola guitarfish, Pseudobatos percellens, distributed throughout the Brazilian coast, is often commercially fished by local artisanal fleets or as by-catch in shrimp trawl fisheries. Therefore, this study aimed to understand the genetic diversity of P. percellens throughout the Brazilian coast, using single nucleotide polymorphisms (SNPs). Genetic analyses employing 3329 SNPs revealed a hidden biodiversity within P. percellens, with at least one lineage occurring in the Northern and Northeastern regions and another distributed in the Southeastern/Southern Brazilian coast, with high genetic differentiation between them. However, the Discriminant Analysis of Principal Components (DAPC) indicated the presence of in fact three lineages distributed in these regions that must still be better investigated. Therefore, to ensure adequate conservation of chola guitarfish biodiversity, populations must be managed separately along the Brazilian coast. Furthermore, the need for a taxonomic review for this group is noted.
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Tracing Patterns and Biodiversity Aspects of the Overlooked Skates and Rays (Subclass Elasmobranchii, Superorder Batoidea) in Greece. DIVERSITY 2023. [DOI: 10.3390/d15010055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Species belonging to the superorder Batoidea have been poorly assessed due to the lack of information on their life history aspects and their limited economic value. This work presents an overview of skates and rays inhabiting the marine Greek waters and reports biodiversity issues requiring resolution for conservation purposes. Overall, 30 species from nine families and 16 genera have been documented within the past 22 years, based on the available literature and technical reports from research surveys of the Hellenic Centre for Marine Research (HCMR). However, 28 species are currently confirmed, since the presence of two rajids has not been sufficiently demonstrated and hence is considered as doubtful. Recent changes in nomenclature allowed us to replace old with new names in four species on the Greek list; patterns in the frequency of occurrence were observed and species were assigned into five categories; and diversity and misidentification issues were reported by family. Although Greek waters are oligotrophic and not considered a biodiversity hot spot for elasmobranchs, a high number of batoid species is documented in the area; therefore, the need to reinforce knowledge on biological aspects of skates and rays, define their status and identify their main threats is essential.
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Corrêa B, Paiva LG, Santos-Neto E, Vidal LG, Azevedo-Silva CE, Vianna M, Lailson-Brito JL. Organochlorine contaminants in Rio skate (Rioraja agassizii), an endangered batoid species, from southeastern coast of Brazil. MARINE POLLUTION BULLETIN 2022; 182:114002. [PMID: 35939933 DOI: 10.1016/j.marpolbul.2022.114002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 07/21/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
A global movement towards decreases in elasmobranch overfishing has been noted in the last decades. However, discussion concerning the effects of POP contamination on the health and survival of these organisms is still recent. These compounds can affect the immune and endocrine systems of both sharks and batoids, impairing reproduction and impacting species recruitment, acting synergistically alongside overfishing effects. In this context, this study investigated the concentration of organochlorine compounds in liver of 29 individuals of Rioraja agassizii, a commercially exploited skate classified as Vulnerable by IUCN and as Endangered in Brazil. Contaminant concentrations were higher in adults compared to juveniles. Distinct contamination profiles were observed, suggesting different groups within the investigated population and revealing contaminants as a potential tool to assess population ecology. PCB levels were considered a concern as they resemble concentrations in ecosystems from the northern hemisphere, where deleterious effects on elasmobranchs have been observed.
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Affiliation(s)
- Beatriz Corrêa
- Laboratório de Mamíferos Aquáticos e Bioindicadores Professora Izabel Gurgel, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil; Laboratório de Biologia e Tecnologia Pesqueira, Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil.
| | - Larissa G Paiva
- Laboratório de Mamíferos Aquáticos e Bioindicadores Professora Izabel Gurgel, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil; Laboratório de Biologia e Tecnologia Pesqueira, Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Elitieri Santos-Neto
- Laboratório de Mamíferos Aquáticos e Bioindicadores Professora Izabel Gurgel, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil
| | - Lara G Vidal
- Laboratório de Mamíferos Aquáticos e Bioindicadores Professora Izabel Gurgel, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil
| | - Cláudio E Azevedo-Silva
- Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Marcelo Vianna
- Laboratório de Biologia e Tecnologia Pesqueira, Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil; IMAM-AquaRio - Rio de Janeiro Aquarium Research Center, Rio de Janeiro, Brazil
| | - José L Lailson-Brito
- Laboratório de Mamíferos Aquáticos e Bioindicadores Professora Izabel Gurgel, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil
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Giagkazoglou Z, Griffiths AM, Imsiridou A, Chatzispyrou A, Touloumis K, Hebb JL, Mylona D, Malamidou AK, Apostolidi ED, Batjakas IΕ, Gubili C. Flying under the radar: DNA barcoding ray wings in Greece detects protected species and umbrella labelling terms. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108517] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Crobe V, Ferrari A, Hanner R, Leslie RW, Steinke D, Tinti F, Cariani A. Molecular Taxonomy and Diversification of Atlantic Skates (Chondrichthyes, Rajiformes): Adding More Pieces to the Puzzle of Their Evolutionary History. Life (Basel) 2021; 11:life11070596. [PMID: 34206388 PMCID: PMC8303890 DOI: 10.3390/life11070596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/19/2021] [Accepted: 06/20/2021] [Indexed: 11/16/2022] Open
Abstract
Conservation and long-term management plans of marine species need to be based upon the universally recognized key-feature of species identity. This important assignment is particularly challenging in skates (Rajiformes) in which the phenotypic similarity between some taxa and the individual variability in others, hampers accurate species identification. Here, 432 individual skate samples collected from four major ocean areas of the Atlantic were barcoded and taxonomically analysed. A BOLD project ELASMO ATL was implemented with the aim of establishing a new fully available and well curated barcode library containing both biological and molecular information. The evolutionary histories of the 38 skate taxa were estimated with two concatenated mitochondrial markers (COI and NADH2) through Maximum Likelihood and Bayesian inference. New evolutionary lineages within the genus Raja were discovered off Angola, where paleogeographic history coupled with oceanographic discontinuities could have contributed to the establishment of isolated refugia, playing a fundamental role among skates' speciation events. These data successfully resolved many taxonomic ambiguities, identified cryptic diversity within valid species and demonstrated a highly cohesive monophyletic clustering among the order, laying the background for further inference of evolutionary patterns suitable for addressing management and conservation issues.
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Affiliation(s)
- Valentina Crobe
- Department of Biological, Geological and Environmental Sciences, University of Bologna, 240126 Bologna, Italy; (A.F.); (A.C.)
- Correspondence: (V.C.); (F.T.)
| | - Alice Ferrari
- Department of Biological, Geological and Environmental Sciences, University of Bologna, 240126 Bologna, Italy; (A.F.); (A.C.)
| | - Robert Hanner
- Department of Integrative Biology, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Robin W. Leslie
- Department of Agriculture, Forestry and Fisheries (DAFF), Branch Fisheries Management, Cape Town 8018, South Africa;
- Department of Ichthyology and Fisheries Science (DIFS), Rhodes University, Grahamstown 6139, South Africa
| | - Dirk Steinke
- Department of Integrative Biology, Centre for Biodiversity Genomics, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Fausto Tinti
- Department of Biological, Geological and Environmental Sciences, University of Bologna, 240126 Bologna, Italy; (A.F.); (A.C.)
- Correspondence: (V.C.); (F.T.)
| | - Alessia Cariani
- Department of Biological, Geological and Environmental Sciences, University of Bologna, 240126 Bologna, Italy; (A.F.); (A.C.)
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Martins MF, Costa PG, Gadig OBF, Bianchini A. Metal contamination in threatened elasmobranchs from an impacted urban coast. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 757:143803. [PMID: 33293088 DOI: 10.1016/j.scitotenv.2020.143803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/29/2020] [Accepted: 10/31/2020] [Indexed: 06/12/2023]
Abstract
Guitarfishes and angelsharks are two of the most endangered elasmobranch groups. Despite this, limited knowledge exists regarding the effects of environmental contamination in these groups. For this reason, this study assessed the concentrations of metals in liver and muscle of three guitarfishes (Pseudobatos horkelii, P. percellens, and Zapteryx brevirostris) and one angelshark species (Squatina guggenheim) captured during the year of 2019 in one of the most impacted areas in South America: the São Paulo State coast, Brazil, Southwest Atlantic. Cadmium (Cd) Chromium (Cr) Cupper (Cu) Iron (Fe), Mercury (Hg), and Lead (Pb) were determined by atomic spectrometry, with samples being previously acid digested. Among the non-essential metals, Cd had the highest mean concentrations for all species, followed by Pb and Hg, whereas Fe had the highest mean levels among the essential metals analyzed, followed by Cu and Cr. Liver and muscle samples had different concentrations, with liver presenting the highest concentrations. Except for Cd, non-essential metals had relatively low concentrations when compared to other elasmobranch species reported in the literature, which could be explained by the efficiency in metabolizing these compounds or differential life history patterns among the species studied herein and other. Considering that all species analyzed herein are typically consumed, human health impacts must be considered, especially concerning Cd concentrations. Furthermore, Cd, Cr and Pb were above the safety limits, indicating potential hazard for human consumption. In conclusion, our results suggest that these species are exposed to metals and that concentrations above the safety limits observed for these species must be taken into consideration regarding human consumption.
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Affiliation(s)
- Mariana F Martins
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande-FURG, Av. Itália Km 8, 96203-900 Rio Grande, Brazil.
| | - Patrícia G Costa
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande-FURG, Av. Itália Km 8, 96203-900 Rio Grande, Brazil
| | - Otto B F Gadig
- Elasmobranch Research Laboratory, Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho", Campus do Litoral Paulista, Praça Infante Dom Henrique s/n°, 11330-900 São Vicente, Brazil
| | - Adalto Bianchini
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande-FURG, Av. Itália Km 8, 96203-900 Rio Grande, Brazil
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Domingues RR, Bunholi IV, Pinhal D, Antunes A, Mendonça FF. From molecule to conservation: DNA-based methods to overcome frontiers in the shark and ray fin trade. CONSERV GENET RESOUR 2021. [DOI: 10.1007/s12686-021-01194-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Camacho-Oliveira RB, Daneluz CM, do Prado FD, Utsunomia R, Rodrigues CE, Foresti F, Porto-Foresti F. DNA barcode reveals the illegal trade of rays commercialized in fishmongers in Brazil. Forensic Sci Int Synerg 2020; 2:95-97. [PMID: 32412006 PMCID: PMC7219166 DOI: 10.1016/j.fsisyn.2020.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/11/2020] [Accepted: 02/11/2020] [Indexed: 11/18/2022]
Abstract
Sequences of the mitochondrial gene COI (DNA Barcode) were used to identify species of rays and skates commercialized in fishmongers in Brazil. The comparisons of the obtained sequences with previously published data available in NCBI and BOLD showed that the fish products corresponded to four species, Hypanus dipterurus, Potamotrygon motoro, Paratrygon ajereba and Gymnura altavela, the last of which is classified as vulnerable according to the IUCN Red List and therefore should not be marketed in accordance with the MMA ordinance 445/2015. Genetic markers used in the identification of fishery products. Methods showed effective to identified fish species. Marketing of fishery products with changed identity. The control of commercialized rays can be done by applying the DNA barcode technique. DNA Barcode was applied in the genetic identification of endangered species.
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Affiliation(s)
- Raul B. Camacho-Oliveira
- Departamento de Ciências Biológicas, Faculdade de Ciências, Universidade Estadual Paulista (UNESP), Bauru, SP, Brazil
| | - Cahique M. Daneluz
- Departamento de Ciências Biológicas, Faculdade de Ciências, Universidade Estadual Paulista (UNESP), Bauru, SP, Brazil
| | - Fernanda D. do Prado
- Departamento de Ciências Biológicas, Faculdade de Ciências, Universidade Estadual Paulista (UNESP), Bauru, SP, Brazil
| | - Ricardo Utsunomia
- Departamento de Ciências Biológicas, Faculdade de Ciências, Universidade Estadual Paulista (UNESP), Bauru, SP, Brazil
| | - Carlos E. Rodrigues
- Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis (IBAMA), Brasília, Brazil, DF, Brazil
| | - Fausto Foresti
- Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
| | - Fábio Porto-Foresti
- Departamento de Ciências Biológicas, Faculdade de Ciências, Universidade Estadual Paulista (UNESP), Bauru, SP, Brazil
- Corresponding author.
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