Results 61 to 70 of about 781 (169)
How does the local species richness (LSR) of stream invertebrate communities relate to the terrestrial productivity of the stream catchment? Using generalized linear models and variance partitioning, we quantified the independent and joint effects of local and catchment predictors on LSR of hyporheic invertebrate communities in New Caledonia streams ...
Samuel Mouron +9 more
wiley +1 more source
A Taxonomic Catalogue of Japanese Nemerteans (Phylum Nemertea) [PDF]
A literature-based taxonomic catalogue of the nemertean species (Phylum Nemertea) reported from Japanese waters is provided, listing 19 families, 45 genera, and 120 species as valid. Applications of the following species names to forms previously recorded from Japanese waters are regarded as uncertain: Amphiporus cervicalis, Amphiporus depressus ...
openaire +3 more sources
Background The apical organ is the most prominent neural structure in spiralian larvae. Although it has been thoroughly investigated in larvae of the class Pilidiophora in phylum Nemertea, studies on its structure in other nemertean larvae are limited ...
Timur Yu Magarlamov +2 more
doaj +1 more source
The aquatic annelid fauna of the San Marcos River headsprings, Hays County, Texas
The San Marcos River in Central Texas has been well studied and has been demonstrated to be remarkably specious. Prior to the present study, research on free-living invertebrates in the San Marcos River only dealt with hard bodied taxa with the exception
McLean L.D. Worsham +2 more
doaj +3 more sources
PARTHENOGENESIS IN CARCINONEMERTES SPP. (NEMERTEA: HOPLONEMERTEA)
When juveniles of Carcinonemertes spp. are removed from male crabs and raised in the laboratory, a 50:50 sex ratio is obtained. Isolated females produce egg strings typical of Carcinonemertes, except that the embryos are haploid, with about 13 chromosomes per cell. Larvae develop at least to hatching, and some do hatch. Nearly all of the 146 females so
openaire +3 more sources
Macrozoobenthos State in Odessa Bay Coastal Waters in 2016-2017
Purpose. Study of macrozoobenthos contemporary state in Odessa Bay coastal waters in 2016-2017. Methods. Standard methods of macrozoobenthos sampling, determination, estimation of number and biomass Results.
S. M. Snigirov +7 more
doaj +1 more source
Introduction Traditionally, genomic or transcriptomic data have been restricted to a few model or emerging model organisms, and to a handful of species of medical and/or environmental importance.
Riesgo Ana +8 more
doaj +1 more source
Ribbon worms (phylum Nemertea) from Bodega Bay, California: A largely undescribed diversity [PDF]
The diversity of nemerteans along the Pacific coast of the United States is regarded as well characterized, but there remain many cryptic, undescribed, and “orphan” species (those known only in their larval form).
Christina I. Ellison +3 more
doaj +3 more sources
Species Diversity of Tetranemertes (Nemertea: Monostilifera) in Japan
The eumonostiliferous hoplonemertean genus Tetranemertes Chernyshev, 1992 consists of 10 named species worldwide, whereas only one has been reported from Japanese waters. In this paper, we i) describe Tetranemertes aurantia sp.
Jamael C. Abato +2 more
doaj +1 more source
Background Most nemerteans (phylum Nemertea) are free-living, but about 50 species are known to be firmly associated with other marine invertebrates. For example, Gononemertes parasita is associated with ascidians, and Nemertopsis tetraclitophila with ...
Wen-Yan Sun +6 more
doaj +1 more source

