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• W2024361866 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 200:229-240 (2000) - doi:10.3354/meps200229 Burrow morphology and behavior of the mud shrimp Upogebia omissa (Decapoda: Thalassinidea: Upogebiidae) Vânia Rodrigues Coelho1,*, Roland Arthur Cooper2, Sérgio de Almeida Rodrigues3 1Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, CP: 11461, CEP: 05422-970, Brazil 2National Institutes of Health, Bethesda, Maryland 20892, USA 3Departamento de Ecologia Geral, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, CP: 11461, CEP: 05422-970, Brazil *Present address: Columbia University, Biosphere 2 Center, 32540 Biosphere Rd, Oracle, Arizona 85623, USA. E-mail: vcoelho@bio2.edu ABSTRACT: The burrow morphology, burrowing behavior and feeding mechanisms of the thalassinidean shrimp Upogebia omissa were studied. Twenty burrow casts were made in situ with epoxy resin, and an overall ŒY¹ shape was most frequently observed. Several burrows consisted of a single, oblique tunnel; burrow diameter was positively correlated with burrow length, maximum depth and distance between openings. Additionally, burrow length was positively associated with maximum depth, indicating that as burrow length increased burrow depth increased; i.e. burrows spread vertically rather than horizontally. Total sediment displacement by the burrows accounted for 2.6% of sediment to a depth of 30 cm. The sediment-water interface increased by 290% in areas containing burrows compared to areas without burrows. Solitary adults were trapped in 15 casts. Three casts were interconnected, but each burrow contained only 1 shrimp. Regression analysis revealed shrimp length to be positively correlated with burrow diameter and area. In aquaria, U. omissa displayed a dual feeding behavior: the shrimp filtered suspended particles, and also fed directly on the sediment. Filter-feeding occurred mainly within U-shaped tunnels, while deposit-feeding was observed in association with the oblique tunnels of the burrow. Although filter-feeding has been considered as the main trophic mode in upogebiids, we present evidence that U. omissa may have a more pronounced deposit-feeding behavior than described for other species of this group. Based on our findings, we suggest that current models on the functional morphology of burrows in relation to feeding should be used cautiously in inferring the trophic behavior of these shrimp. KEY WORDS: Shrimp · Burrow · Feeding · Upogebia · Decapoda · Thalassinidea Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 200. Publication date: July 14, 2000 Print ISSN:0171-8630; Online ISSN:1616-1599 Copyright © 2000 Inter-Research." @default.
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• W2024361866 title "Burrow morphology and behavior of the mud shrimp Upogebia omissa (Decapoda:Thalassinidea:Upogebiidae)" @default.
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