Morphotypes ofSpongia officinalis(Demospongiae, Dictyoceratida) in two Mediterranean populations
نویسندگان
چکیده
منابع مشابه
Jellyfish populations in the Mediterranean Sea
The Mediterranean Sea is home to numerous species of jellyfish, both native and invasive. Some of these jellyfish, which here include pelagic cnidarians, ctenophores and salps, have been monitored for centuries, while others are rarely sampled or studied. In addition, particular species of jellyfish are of high public interest due to impacts on tourism and other human activities, yet others may...
متن کاملEvidence for two different morphotypes of Difflugia tuberspinifera from China.
Difflugia is a morphologically diverse genus of testate amoebae, which are common components of freshwater ecosystems. We observed a new morphotype similar to Difflugia tuberspinifera but without spine in four Xiamen reservoirs, Fujian Province, southeast China. We investigated its morphology and biometry using light and scanning electron microscopy. The linear discriminant analysis and princip...
متن کاملPhylogenetic diversity and temporal variation in the Spirochaeta populations from two Mediterranean microbial mats.
Spirochetes are among the bacterial groups often observed in hydrogen-sulfide-rich layers of coastal microbial mats. However, relatively few spirochetes from these microbial mats have been described and characterized. We used 16S rDNA phylogenetic analysis to investigate the spirochetal diversity of microbial mats from two locations in the western Mediterranean (Ebro Delta, Spain, and Camargue,...
متن کاملGenetic Structure of Hartebeest Populations Straddling a Transition Zone between Morphotypes
Variation in mitochondrial and microsatellite DNA was used to define the genetic structure of hartebeest populations straddling a transition zone between two morphotypes (Alcelaphus buselaphus cokei and A. b. lelwel) in Kenya. Previous analyses of mtDNA from hartebeest populations across Africa supported the refugium hypothesis; that present day hartebeest morphotypes diverged in allopatry, due...
متن کاملPhosphoglucose Isomerase Variability in Sympatric Populations of Mediterranean Species
Genetic variability at the phosphoglucose isomerase (PGI) locus was compared in Mediterranean sympatric populations of Patella aspera, P. coerulea and P. lusitan~ca. P. aspera and P. coerulea show PG1 patterns much alike, while P. lusitanica exhibits a more anodal general zone of mobility of its PG1 allozymes. The differentiation of P. lusitanica pattern may be tentatively interpreted as the re...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Italian Journal of Zoology
سال: 2003
ISSN: 1125-0003,1748-5851
DOI: 10.1080/11250000309356538