|
NUITFRANCE - Bibliothèque - Fiche bibliographique
Bibliothèque
Cette rubrique recense :
- de la documentation sur les différents thèmes de la nuit (vie nocturne, pollution lumineuse, pollution sonore, ...).
- les données informatiques relatives à l'éclairage public digitalisées et mises à dispositions en open data par certaines communes,
Fil d'Ariane : Accueil >> Bibliothèque >> Fiche bibliographique
Permalien : http://www.nuitfrance.fr/?page=donneesdoc&partie=fiche-bibliographique
Quelques tags associés : [ DOCUMENTATION, PUBLICATIONS, LITTÉRATURE, CONNAISSANCES, LITTÉRATURE GRISE, ARTICLES DE PRESSE, ARTICLES SCIENTIFIQUES, TEXTES JURIDIQUES, PLANS ET PROGRAMMES, JURISPRUDENCE, DÉCRETS, THÈSES ]
► Fiche bibliographique
Afficher la fiche pour le document :
Document " Long-term study of gamete release in a broadcast-spawning holothurian: predictable lunar and diel periodicities "
Type de document : |
Articles de revue scientifique |
Thème du document : |
Nuit naturelle - Rythmes biologiques |
Groupe biologique : |
Poissons et invertébrés aquatiques |
Auteur(s) : |
MERCIER A. YCAZA R.H. HAMEL J.F.
|
Date de publication : |
2007 |
Langue : |
English/Anglais |
Nom du périodique : |
Marine Ecology Progress Series |
Précisions : |
Volume 329. Pages 179-189 |
Lien contenu/source : |
http://www.int-res.com/articles/meps2007/329/m329p... |
DOI : |
10.3354/meps329179 |
Mots-clefs : |
Echinoderm Holothurian Isostichopus fuscus Lunar cycle Periodicity Reproductive synchrony Spawning
|
Citation courte : |
Mercier et al. (2007) |
Citation complète (format NuitFrance) : |
MERCIER A., YCAZA R.H. & HAMEL J.F. (2007). Long-term study of gamete release in a broadcast-spawning holothurian: predictable lunar and diel periodicities. Marine Ecology Progress Series. Volume 329. Pages 179-189. |
Résumé du document : |
|
Annual and monthly patterns of gamete release by the sea cucumber Isostichopus fuscus on the coast of Ecuador were studied to determine the proximal spawning cue and variations in reproductive output throughout the year. Several hundred newly collected individuals were monitored nearly every month for 4 yr. I. fuscus displayed a lunar spawning periodicity: 0.7 to 34.9% of individuals consistently spawned 1 to 4 d after the new moon. Spawning mostly occurred within one evening; however, some gamete release was often recorded over 2 to 4 consecutive evenings. Individuals maintained in captivity for several months retained their spawning periodicity and timing with the lunar cycle. Conversely, newly caught individuals that were shaded from the moonlight did not spawn, thus demonstrating the apparent lack of endogenous rhythms and prevalence of lunar luminance over other cues (i.e. tidal cycle, fluctuations in barometric pressure). On a spawning night, males typically initiated gamete release around sunset; females spawned just after the peak male broadcast. The percentage of spawning individuals was higher and a greater overlap between male and female peak spawning activity was observed during clear conditions compared with overcast conditions. The gonads of individuals that did not spawn in a given month showed a variety of maturity levels, including post-spawning, growth and mature gametogenic stages. Hence, the individual reproductive cycle is apparently longer than the monthly spawning periodicity observed at the population level, enabling I. fuscus populations to be reproductive year round.
|
Saisie sur NuitFrance par : |
Rosor |
Saisie sur NuitFrance en : |
Novembre 2014 |
Identifiant NuitFrance : |
NF-BIBLI-122 |
Permalien de la fiche NuitFrance : |
http://www.nuitfrance.fr/?page=donneesdoc&partie=fiche-bibliographique&id_doc=122 |
|
|