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Gastropod relevance in predator–prey interactions on a benthic shallow sandy ecosystem at Mar del Plata, Argentina (38°S)
- Source :
- Journal of the Marine Biological Association of the United Kingdom. 99:403-409
- Publication Year :
- 2018
- Publisher :
- Cambridge University Press (CUP), 2018.
-
Abstract
- The shallow sandy marine subtidal ecosystem off Mar del Plata, Argentina, is the scene of multiple fisheries activities, in particular the prawn-shrimp Artemesia longinaris and Pleoticus muelleri grounds. We examined the δ 13 C vs δ 15 N isotope signatures of 22 species commonly found in the area in order to understand how this ecosystem supports the fishery, with special emphasis on imposex-Affected gastropod populations. Our results indicate that the main food source for Olivancillaria urceus and Buccinanops monilifer were bivalves and crustaceans. Buccinanops duartei and Olivancillaria carcellesi feed on bivalves and also on macroalgae. These findings indicate, for the first time, a slight selectivity of some of the gastropods studied for local drifted algal sources and how gastropods may scavenge available food from by-catch returned to the sea. The fishes Urophysis brasiliensis and Callorhynchus callorhynchus appeared to be the top predators of this area with B. duartei and O. carcellesi constituting important components of their diet. Fil: Arrighetti, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina Fil: Teso, Silvia Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina Fil: Brey, T.. Alfred Wegener Institute for Polar and Marine Research; Alemania Fil: Penchaszadeh, Pablo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
- Subjects :
- 0106 biological sciences
STABLE ISOTOPES
Ecology
010604 marine biology & hydrobiology
Buccinanops monilifer
MIXING MODELS
δ15N
Biología Marina, Limnología
Aquatic Science
Biology
biology.organism_classification
010603 evolutionary biology
01 natural sciences
Crustacean
Food web
Predation
Ciencias Biológicas
Benthic zone
FOOD WEB
Ecosystem
14. Life underwater
GASTROPODS
CIENCIAS NATURALES Y EXACTAS
Apex predator
Subjects
Details
- ISSN :
- 14697769 and 00253154
- Volume :
- 99
- Database :
- OpenAIRE
- Journal :
- Journal of the Marine Biological Association of the United Kingdom
- Accession number :
- edsair.doi.dedup.....ee1b6581f0b16bc09cfe2f403102a656