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Bhaud, M. R.; Cazaux, Claude P.; with contributions from Watson Russell, C; Lefevre, M. (1987). Description and identification of polychaete larvae; their implications in current biological problems. Oceanis. 13(6): : 595-753.
59243
Bhaud, M. R.; Cazaux, Claude P.; with contributions from Watson Russell, C; Lefevre, M.
1987
Description and identification of polychaete larvae; their implications in current biological problems
Oceanis
13(6): : 595-753
Publication
World Polychaeta Database (WPolyDb)
Available for editors  PDF available [request]
[machine translation: This work is above all a practical guide for the identification of annelid larvae. It responds to a growing demand for students at the end of their studies and young researchers. Ten families are studied: Chrysopetalidae, Phyllodocidae, Hesionidae, Glyceridae, Spionidae, Magelonidae, Poecilochaetidae, Chaetopteridae, Sabellariidae, Terebellidae and two superfamilies: Aphroditoidea and Eunicoidea. In addition to practical identification processes, the authors and analysts can help by studying the stages of development in several areas of oceanography. Correct identification is essential to interpret seasonal variations at the specific level and recognize the action of climatic parameters, or to ascertain the role of long-distance transport by sea currents. In a final chapter, the authors tackle several current questions linked to the existence of a planktonic larval phase in the life cycle: adult reproductive activity, recruitment conditions and fluctuation of adult populations, paleogeography and evolutionary processes. With regard to the identification proper, the authors insist on the need to establish diagnoses based on adult characters already present in the larva, therefore to focus the observation rather on the older stages than on the young stages which have a short life and a very localized distribution. An interesting result relates to the different use of the criteria of recognition of larvae compared to the diagnoses identifying the adult forms from the same criteria: a difference appearing very early during the development is considered as fundamental and must be used at the beginning of diagnosis.]
[original] Le présent travail constitue avant tout un guide pratique pour l’identification des larves annelides. II repond a une demande croissante d'etudiants en fin de cursus et de jeunechercheurs. Dix families sont etudiees : Chrysopetalidae, Phyllodocidae, Hesionidae, Glyceridae, Spionidae, Magelonidae, Poecilochaetidae, Chaetopteridae, Sabellariidae, Terebellidae et deux superfamilles : Aphroditoidea et Eunicoidea. A coté des processus pratiques d'identification, les auteurs out analyst ce que peut apporter l’etude des stades de developpement dans plusieurs domaines de I'oceanographie. Une bonne identification est indispensable pour interpreter les variations saisonnieres au niveau specifique et reconnaitre l’action des parametres climatiques, ou pour s'assurer du role du transport sur de longues distances par les courants marins. Dans un chapitre terminal les auteurs abordent plusieurs questions d'actualite liees k I'existence d'une phase larvaire planctonique dans le cycle de vie : activite de reproduction des adultes, conditions de recrutement et fluctuation des populations adultes, paleogeographie et processus evolutifs. Pour ce qui conceme I'identification proprement dite, les auteurs insistent sur le besoin d'etablir des diagnoses basees sur des caracteres adultes ddjk presents chez la larve, donc de focaliser I'observation plutot sur les stades ages que sur les jeunes stades qui ont une vie de courte duree et une distribution tres localisee. Un resultat interessant porte sur I'utilisation differente des criteres de reconnaissance des larves par rapport aux diagnoses identifiant les formes adultes a partir des memes criteres : une difference apparaissant tres tot au cours du developpement est considerde comme fondamentale et doit etre utilisee en debut de diagnose.
Atlantic Ocean (without specification)
Zooplankton
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2013-01-12 18:30:12Z
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