Ecología del caballito de mar Hippocampus patagonicus (Piacentino and Luzzatto, 2004) en las costas de Mar del Plata y su relación con ambientes impactados antrópicamente.
Seahorses (genus Hippocampus Rafinesque 1810, Syngnathidae) are threatened fishes due to declining populations. In this study we determine seahorses from Mar del Plata harbour (Buenos Aires prov., Argentina) by taxonomic characters: meristic, morphometric and molecular. It is established a stable population of Hippocampus patagonicus inside Mar del Plata harbour. The results presented allow to expand the geographical range of H. patagonicus up to the northern limit of the Argentine Sea and to suspect its presence at lower latitudes in the Southwestern Atlantic Ocean. For the first time, H. patagonicus population characteristics (size, densitiy, sex ratio, reproductive activity) are described by underwater visual census, which were consistent with previous analysis for de genus. The environment was characterized, space use and habitat associations in order to be used as a basis for future assessment. Feeding habits were studied by non-destructive methodology and prey disponibility, and their relationship with H. patagonicus density. The seahorse trade was characterized in Mar de Plata city. Seahorses found in the market were destined to the curious trade and aquarism, but there were no evidence of seahorses destined to traditional medicine. It is presented for the first time H. patagonicus ecological and life history studies to assist conservation recommendation and strategies of sustainable management for populations.
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| Format: | Thesis/Dissertation biblioteca |
| Language: | Spanish / Castilian |
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Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales
2014
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| Subjects: | Syngnathidae, Hippocampus, Hippocampus patagonicus, Caballito de mar, Morfometría, Taxonomía, Estructura poblacional, Dinámica poblacional, ASFA15::M::Morphometry, ASFA15::T::Taxonomy, ASFA15::P::Population structure, ASFA15::P::Population dynamics, |
| Online Access: | http://hdl.handle.net/1834/6827 |
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