Reproductive Output and Seasonality of <i>Limnoperna fortunei</i>

Young <i>Limnoperna fortunei</i> mature sexually from 5–6 to ~15 mm. The species is generally dioecious, with approximately equal numbers of males and females and very small (< 0.6 %) proportions of hermaphrodites. The gametogenic cycle has been described for both Asian and South Amer...

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Autores principales: Boltovskoy, Demetrio, Morton, Brian, Correa, Nancy, Cataldo, Daniel, Damborenea, María Cristina, Penchaszadeh, Pablo E., Sylvester, Francisco, Demetrio Boltovskoy
Formato: Libro Capitulo de libro
Lenguaje:Inglés
Publicado: Springer 2015
Materias:
Ciencias Naturales
Limnoperna fortunei
Golden mussel
Reproduction
Seasonal cycles
Cohorts
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127234
https://link.springer.com/chapter/10.1007%2F978-3-319-13494-9_5
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-127234
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Limnoperna fortunei
Golden mussel
Reproduction
Seasonal cycles
Cohorts
spellingShingle Ciencias Naturales
Limnoperna fortunei
Golden mussel
Reproduction
Seasonal cycles
Cohorts
Boltovskoy, Demetrio
Morton, Brian
Correa, Nancy
Cataldo, Daniel
Damborenea, María Cristina
Penchaszadeh, Pablo E.
Sylvester, Francisco
Demetrio Boltovskoy
Reproductive Output and Seasonality of <i>Limnoperna fortunei</i>
topic_facet Ciencias Naturales
Limnoperna fortunei
Golden mussel
Reproduction
Seasonal cycles
Cohorts
description Young <i>Limnoperna fortunei</i> mature sexually from 5–6 to ~15 mm. The species is generally dioecious, with approximately equal numbers of males and females and very small (< 0.6 %) proportions of hermaphrodites. The gametogenic cycle has been described for both Asian and South American populations, recognizing between four and five reproductive phases. Gonadal cycles based on histological sections yielded somewhat dissimilar results for different areas. In Hong Kong, two yearly peaks in reproductive output were detected. In South America, mature sperm and ova have been recorded year round and several irregularly spaced spawning events have been observed, as well as more or less continuous breeding punctuated by peaks in spring and at the end of the summer. Reproductive studies based on changes in the abundance of larvae in the water column have been carried out in South America and in Japan. In tropical and subtropical South America, larval output is more or less continuous for 6–10 months of the year, often with a major peak in spring–early summer, and a smaller one in the late summer–autumn. In Japan, at considerably lower water temperatures, larval production is limited to 1–2 months centered around summer. Apparent disagreements between results based on histological data and on larval counts stem from the fact that while the latter integrate the reproductive output of extensive mussel beds dispersed over large areas, histological evidence pinpoints with high precision the ripening and spawning of isolated mussel clusters. Aside from water temperature, several other factors (pH, salinity, dissolved oxygen, suspended solids, chlorophyll a, flood–drought cycles) have been proposed as reproductive triggers, but actual associations have not been demonstrated. Peak larval densities can exceed 20,000 ind./m<sup>3</sup>, but, normally, values range around 6000 ind./m<sup>3</sup>, showing major fluctuations within short periods, as well as changes as a function of time elapsed post colonization, and availability of substrata suitable for adult occupation. Microcystin-producing cyanobacterial blooms can kill L. <i>fortunei</i> larvae.
format Libro
Capitulo de libro
author Boltovskoy, Demetrio
Morton, Brian
Correa, Nancy
Cataldo, Daniel
Damborenea, María Cristina
Penchaszadeh, Pablo E.
Sylvester, Francisco
Demetrio Boltovskoy
author_facet Boltovskoy, Demetrio
Morton, Brian
Correa, Nancy
Cataldo, Daniel
Damborenea, María Cristina
Penchaszadeh, Pablo E.
Sylvester, Francisco
Demetrio Boltovskoy
author_sort Boltovskoy, Demetrio
title Reproductive Output and Seasonality of <i>Limnoperna fortunei</i>
title_short Reproductive Output and Seasonality of <i>Limnoperna fortunei</i>
title_full Reproductive Output and Seasonality of <i>Limnoperna fortunei</i>
title_fullStr Reproductive Output and Seasonality of <i>Limnoperna fortunei</i>
title_full_unstemmed Reproductive Output and Seasonality of <i>Limnoperna fortunei</i>
title_sort reproductive output and seasonality of <i>limnoperna fortunei</i>
publisher Springer
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/127234
https://link.springer.com/chapter/10.1007%2F978-3-319-13494-9_5
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