Genetic diversity of the Pennaria disticha Goldfuss, 1820 (Cnidaria, Hydrozoa) complex: new insights from Brazil

Vaga, Claudia F.; Kitahara, Marcelo V.; Nascimento, Karine B.; Migotto, Álvaro Esteves

doi:10.1007/s12526-020-01102-7

Cited by 6 publications

(2 citation statements)

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“…Cryptic diversity likely exists within the widely distributed nominal species P. disticha (Miglietta et al 2015;Vaga et al 2020). This diversity is highlighted in our phylogenetic reconstructions, revealing two main divergent clades based on available 16S barcodes (Fig.…”

Section: Family Pennariidaementioning

confidence: 99%

Hotspot of Exotic Benthic Marine Invertebrates Discovered in the Tropical East Atlantic: DNA Barcoding Insights from the Bijagós Archipelago, Guinea-Bissau

Moura,

Wirtz,

Nhanquê

et al. 2024

Preprint

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AimThis study aimed to explore and document putative exotic marine benthic invertebrate species in the Bijagós Archipelago, Guinea-Bissau, to enhance understanding of marine biodiversity and address the extent of marine species introductions.LocationThe research was conducted in the Bijagós Archipelago, a UNESCO Biosphere Reserve located in Guinea-Bissau.MethodsThe study involved the region’s first scuba-diving survey of marine biodiversity. DNA barcoding was employed to assist in the identification of benthic invertebrate species. Molecular phylogenetic analyses were conducted with the available DNA barcodes to ensure accurate taxonomic assignments, detect cryptic species, and investigate the phylogeography of the taxa.ResultsThe survey resulted in the discovery of 28 new species records for the Bijagós Archipelago, including octocorals, scleractinians, hydroids, bryozoans, barnacles, and ascidians. Among these, seven species were documented for the first time in the East Atlantic:Stragulum bicolor,Tubastraea tagusensis,Nemalecium lighti,Diphasiasp.,Amathia alternata,A. distans, andSymplegma rubra. Molecular analyses revealed pervasive cryptic diversity within species previously listed as exotic, suggesting that some, such as the hydroidsPlumularia setacea,Obelia geniculata, andDynamena disticha, are not exotic due to their restricted biogeographic distributions. Many other species reported as introduced present only a few genetic lineages capable of long-distance dispersal due to human activities.Main ConclusionsThe study highlights considerable gaps in the knowledge of West African marine biodiversity and suggests a substantial underestimation of the anthropogenic trade in exotic marine species between the Tropical East Atlantic and the Americas, and between the Indo-Pacific and West Africa. Detailed taxonomic and genomic analyses are necessary for understanding marine exotic species’ biogeography and adaptive traits. Our findings challenge current classifications of exotic species and underscore the need for improved monitoring and management to prevent the spread of non-native marine species.

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Section: Family Pennariidaementioning

confidence: 99%

Hotspot of Exotic Benthic Marine Invertebrates Discovered in the Tropical East Atlantic: DNA Barcoding Insights from the Bijagós Archipelago, Guinea-Bissau

Moura,

Wirtz,

Nhanquê

et al. 2024

Preprint

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“…Among the most common and injuring components of the fouling community, the conspicuous colonial hydroid Pennaria disticha is not only able to affect farmed organisms but also to produce painful stings and severe dermatitis to field aquaculture operators and bathers (Tezcan and Sarp, 2013;Bosch-Belmar et al, 2017). It may pose a significant threat since some of its main traits (e.g., warm-water affinity, high growth rate, iteroparous reproduction, and the persistence of a resting stage when environmental conditions are not optimal) conferred the species a significant invasiveness potential (Schuchert, 2006;Knapp et al, 2011;Bosch-Belmar et al, 2019;Vaga et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Predictive Metabolic Suitability Maps for the Thermophilic Invasive Hydroid Pennaria disticha Under Future Warming Mediterranean Sea Scenarios

2022

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Temperature is a fundamental variable for all biological processes. It influences the metabolism and tolerance limits of all living organisms, affecting species phenology and distribution patterns. It also facilitates the spread of non-indigenous species and the proliferation and expansion of native outbreak-forming species. Pennaria disticha is a colonial benthic cnidarian reported to be invasive in different Indian and Pacific coastal areas, as well as a harmful member of fouling communities found in Mediterranean marine aquaculture farms. Using the most basal functional trait (i.e., thermal tolerance), we explored the potential of P. disticha to colonize different habitats across the Mediterranean Sea in future warming scenarios. Respiration rate was measured as a proxy of P. disticha metabolism under 12 different experimental temperatures. The obtained thermal tolerance dataset was used to create a thermal performance curve (TPC). We then scaled modeled curve to occurrence probability to map species potential metabolic habitat suitability and phenological shifts within the Mediterranean Sea when subjected to different warming scenarios. Prediction maps for future climatic conditions showed a potential temporal and spatial expansion of P. disticha in the Western and Central Mediterranean. The present data increases our understanding of the ecological performance and potential distribution of an invasive and outbreak-forming species. This information will contribute to the development of early warning systems and to the design and implementation of risk assessment and management plans.

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Contrasting morphological and genetic patterns suggest cryptic speciation and phenotype–environment covariation within three benthic marine hydrozoans

et al. 2022

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Genetic diversity of the Pennaria disticha Goldfuss, 1820 (Cnidaria, Hydrozoa) complex: new insights from Brazil

Cited by 6 publications

References 58 publications

Hotspot of Exotic Benthic Marine Invertebrates Discovered in the Tropical East Atlantic: DNA Barcoding Insights from the Bijagós Archipelago, Guinea-Bissau

Hotspot of Exotic Benthic Marine Invertebrates Discovered in the Tropical East Atlantic: DNA Barcoding Insights from the Bijagós Archipelago, Guinea-Bissau

Predictive Metabolic Suitability Maps for the Thermophilic Invasive Hydroid Pennaria disticha Under Future Warming Mediterranean Sea Scenarios

Contrasting morphological and genetic patterns suggest cryptic speciation and phenotype–environment covariation within three benthic marine hydrozoans

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