Academic Journal
Phenotypic variability of the shell in Neritinidae (Gastropoda: Neritimorpha) in Puerto Rican rivers ; Variación fenotípica de la concha en Neritinidae (Gastropoda: Neritimorpha) en ríos de Puerto Rico
| العنوان: | Phenotypic variability of the shell in Neritinidae (Gastropoda: Neritimorpha) in Puerto Rican rivers ; Variación fenotípica de la concha en Neritinidae (Gastropoda: Neritimorpha) en ríos de Puerto Rico |
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| المؤلفون: | Blanco, Juan Felipe, Tamayo, Silvana, Scatena, Frederick N. |
| المصدر: | Revista de Biología Tropical; Vol. 62 No. S2 (2014): Volume 62 – Supplement 2 – April 2014: Aquatic macroinvertebrates of Latin America; 52-68 ; Revista de Biología Tropical; Vol. 62 Núm. S2 (2014): Volumen 62 – Suplemento 2 – Abril 2014: Macroinvertebrados acuáticos de Latinoamérica; 52-68 ; Revista Biología Tropical; Vol. 62 N.º S2 (2014): Volumen 62 – Suplemento 2 – Abril 2014: Macroinvertebrados acuáticos de Latinoamérica; 52-68 ; 2215-2075 ; 0034-7744 ; 10.15517/rbt.v62i0 |
| بيانات النشر: | Universidad de Costa Rica |
| سنة النشر: | 2014 |
| المجموعة: | Portal de revistas académicas de la Universidad de Costa Rica |
| مصطلحات موضوعية: | Neritina virginea, Neritina reclivata, Neritina punctulata, shell color, phenotypic variability, polymorphism, coloración de concha, variación fenotípica, polimorfismo |
| الوصف: | Gastropods of the Neritinidae family exhibit an amphidromous life cycle and an impressive variability in shell coloration in Puerto Rican streams and rivers. Various nominal species have been described, but Neritina virginea [Linné 1758], N. punctulata[Lamarck 1816] and N. reclivata [Say 1822] are the only broadly reported. However, recent studies have shown that these three species are sympatric at the river scale and that species determination might be difficult due to the presence of intermediate color morphs. Individuals (8 751) were collected from ten rivers across Puerto Rico, and from various segments and habitats in Mameyes River (the most pristine island-wide) during three years (2000-2003), and they were assigned to one of seven phenotypes corresponding to nominal species and morphs (non-nominal species). The “axial lines and dots” morph corresponding to N. reclivata was the most frequent island-wide, while the patelliform N. punctulata was scant, but the only found in headwater reaches. The “yellowish large tongues” phenotype, typical of N. virginea s.s. was the most frequent in the river mouth. The frequency of secondary phenotypes varied broadly among rivers, along the rivers, and among habitats, seemly influenced by salinity and predation gradients. The occurrence of individuals with coloration shifts after predation injuries, suggests phenotypic plasticity in the three nominal species, and urges for the use of molecular markers to unravel the possible occurrence of a species complex, and to understand the genetic basis of polymorphism. The longitudinal distribution of individual sizes, population density and egg capsules suggested the adaptive value of upstream migration, possibly to avoid marine predators. Rev. Biol. Trop. 62 (Suppl. 2): 53-68. Epub 2014 April 01. ; Los gasterópodos Neritinidae de Puerto Rico presentan un ciclo de vida anfídromo y exhiben polimorfismo en los patrones de coloración de la concha. Se identificó que la oviposición aumenta río arriba conforme los individuos alcanzan ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf; text/html |
| اللغة: | Spanish; Castilian |
| Relation: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/15778/15124; https://revistas.ucr.ac.cr/index.php/rbt/article/view/15778/15143; https://revistas.ucr.ac.cr/index.php/rbt/article/view/15778 |
| DOI: | 10.15517/rbt.v62i0.15778 |
| الاتاحة: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/15778 https://doi.org/10.15517/rbt.v62i0.15778 |
| رقم الانضمام: | edsbas.5E4EE8ED |
| قاعدة البيانات: | BASE |
| DOI: | 10.15517/rbt.v62i0.15778 |
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