Search results for "Pipefish"

showing 3 items of 3 documents

Conventional karyotype, nucleolar organizer regions and genome size in five Mediterranean species of Syngnathidae (Pisces, Syngnathiformes)

1998

Conventional karyotypes, NOR-bearing chromosomes by means of silver impregnation and genome size were investigated in five Mediterranean species in three genera of the Syngnathidae. A karyotype of 48 subtelocentric-acrocentric chromosomes was found in the seahorse Hippocampus hippocampus (FN=48) while a diploid value of 44 occurred in H. guttulatus (2 sm-m+42 a; FN=46) and the pipefish Syngnathus abaster (44 a; FN=44) and S. typhle (44 a; FN=44). The pipefish Nerophis ophidion, possessing a diploid chromosomal set of 58 made up of 50 meta-submetacentric and eight subteloacrocentric elements (FN=108) and a genome size three to four times larger than those known to date, differs cytogenetical…

GeneticsChromosomeHippocampus hippocampusKaryotypeBiologyAquatic ScienceNucleolus organizationbiology.organism_classificationPipefishSilver stained chromosomeEvolutionary biologyMediterranean SeaCytogeneticPloidyNucleolus organizer regionSyngnathidaeGenome sizeEcology Evolution Behavior and Systematics
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FISH mapping of 18S rDNA and (TTAGGG)n sequences in two pipefish species (Gasteroisteiformes: Syngnathidae).

2006

1Istituto di Scienze Marine, Sezione di Venezia, CNR, Castello 1364/a, 30122 Venezia, Italy 2Dipartimento di Biologia Animale, Universita di Palermo, Via Archirafi 18, 90123 Palermo, Italy 3Dipartimento di Scienze Ambientali, Universita “Ca’ Foscari”, Castello 2737/b 30122 Venezia, Italy 4Istituto di Ecologia e Biologia Ambientale, Universita di Urbino “Carlo Bo”, Via I. Maggetti 22, 61029 Urbino (PU), Italy

biologyBase SequenceZoologyChromosome MappingTelomerebiology.organism_classificationPipefishDNA RibosomalSmegmamorphaFisherySyngnathidaeGeneticsRNA Ribosomal 18SFish <Actinopterygii>Animals18s rdnaIn Situ Hybridization FluorescenceRepetitive Sequences Nucleic AcidJournal of genetics
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The trophic structure of the pipefish community (Pisces: Syngnathidae) from a western Mediterranean seagrass meadow based on stable isotope analysis

2004

Syngnathus abaster andSyngnathus typhle (Pisces: Syngnathidae) from a dense Cymodocea nodesa meadow in the western Mediterranean Stagnone di Marsala (Italy) were studied using δ13N and δ15N analysis. Because of the presence of these two species in the same habitat and the specialized parental care by the male, the effect of species and sex on the isotopic composition was also studied to investigate the different feeding strategies between and within species.S. abaster andS. typhle exhibited enriched13C and15N values throughout the sampling period (mean ±SE, δ13C =−10.5±1.8‰ and−10.8±2.0‰, δ15N=11.9±0.7‰ and 10.6±1.0%., respectively), suggesting that these species receive their energy mainly…

biologyδ13CEcologyδ15NAquatic Sciencebiology.organism_classificationPipefishSyngnathidaeSeagrassCymodoceaEnvironmental ChemistryGeneral Environmental ScienceTrophic levelIsotope analysisEstuaries
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