polychaete

(redirected from Polychaeta)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to Polychaeta: Arthropoda

polychaete

any marine ANNELID worm of the order Polychaeta, including both errant (moving) and tubicolous (mainly sedentary) forms. They are characterized by the presence of CHAETAE carried on parapodia (projections from the body) and in errant forms the head is well developed. Fertilization is external. The group includes Nereids (bristle worms such as the ragworm), tube worms and fan worms.
References in periodicals archive ?
Polychaeta from several localities in the western Indian Ocean.
Taxonomia, estrutura populacional e 2014 distribuicao espaco-temporal de Polychaeta na Lagoa Visgueiro do Parque Nacional da Restinga de Jurubatiba, RJ, Brasil.
A total 15 families were identified under taxonomic group of Polychaeta (Table 3).
Phylum Anelida Clase Polychaeta Subclase Errantia Familia Codigo Especie Orbinidae Orb 001 Phylo sp 002 Leitoscoloplos sp Protodrillidae Pro 001 Protodriloides sp Spionidae Spi 001 Minuspio sp Chaetopteridae Cha 001 Chaetopterus sp Cirratulidae Cir 001 Cirriformia luxuriosa 002 Tharyx sp.
5 coincidio en la ingesta de 40 items-presa (diatomeas, dinoflagelados, silicoflagelados, tintinidos, copepodos, polychaeta y otros).
Of the benthic species, polychaeta and cladocera seems to be heavily affected.
f kuhniana PELECYPODA 102 1 1 2 ANELIDA 103 11 11 2 POLYCHAETA Nereidae 104 CRUSTACEA TANAIDACEA 105 GAMMARIDAE 106 ISOPODA Sphaeromatidae 107 DECAPODA Palaemonidae Macrobrachium 108 23 28 250 heterochiurs Macrobrachium 109 1 panamense Grapsidae Sesarma 110 Ocypodidae Uca 111 Xanthidae 112 TOTAL 3067 1923 398 Centro TAXA Guadalito Estero Desembocadura ARTHROPODA INSECTA EPHEMEROPTERA Baetidae Morfotipo A Cloedes sp 4 Americabaetis sp 2 Camelobaetidius sp Baetodes sp Leptophlebiidae Simothraulopsis c.
El grupo taxonomico que alcanzo la mayor densidad fue Polychaeta (81%).
Experiments carried out on another group of hydrobiontes, Polychaeta, showed that aromatic structures of organic substances of excrements acquired a different character from that in initial forms.