Trophic ecology and diet of Hydra vulgaris (Cnidaria; Hydrozoa)

Hydra is a genus of common, sessile, solitary freshwater cnidarians, which are defined as carnivorous and efficient predators. The purpose of this study was to obtain information on the feeding habits and diet of Hydra vulgaris collected from its natural habitat in Nahuel Rucá Lake (Buenos Aires Pro...

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Autores principales:	Deserti, M.I., Esquius, K.S., Escalante, A.H., Acuña, F.H.
Formato:	JOUR
Materias:	Argentina Buenos Aires province Genus hydra Trophic ecology diet feeding ecology morphology phytoplankton polyp prey capture trophic environment Buenos Aires [Argentina] algae Cnidaria Fungi Hydra Hydra vulgaris Hydrozoa Invertebrata
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_15707555_v67_n3-4_p287_Deserti
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_15707555_v67_n3-4_p287_Deserti
record_format	dspace
spelling	todo:paper_15707555_v67_n3-4_p287_Deserti2023-10-03T16:26:51Z Trophic ecology and diet of Hydra vulgaris (Cnidaria; Hydrozoa) Deserti, M.I. Esquius, K.S. Escalante, A.H. Acuña, F.H. Argentina Buenos Aires province Genus hydra Trophic ecology diet feeding ecology morphology phytoplankton polyp prey capture trophic environment Argentina Argentina Buenos Aires [Argentina] algae Cnidaria Fungi Hydra Hydra vulgaris Hydrozoa Invertebrata Hydra is a genus of common, sessile, solitary freshwater cnidarians, which are defined as carnivorous and efficient predators. The purpose of this study was to obtain information on the feeding habits and diet of Hydra vulgaris collected from its natural habitat in Nahuel Rucá Lake (Buenos Aires Province, Argentina). We found three categories of food items in the coelenteron: Algae, fungi, and small invertebrates. Algae dominated the diet in terms of abundance and frequency of occurrence, but their volumetric contribution was almost negligible, as was their possible nutritional value. Invertebrate prey captured, using active predation, represented the major volumetric contribution, with four different taxa found. The detection of phytoplankton in the gastral cavities reveals the input of some organisms present in the surrounding waters in addition to the invertebrates. This information is novel, since studies on the natural diet of Hydra are very scarce. © koninklijke brill nv, leiden, 2017. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15707555_v67_n3-4_p287_Deserti
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Argentina Buenos Aires province Genus hydra Trophic ecology diet feeding ecology morphology phytoplankton polyp prey capture trophic environment Argentina Argentina Buenos Aires [Argentina] algae Cnidaria Fungi Hydra Hydra vulgaris Hydrozoa Invertebrata
spellingShingle	Argentina Buenos Aires province Genus hydra Trophic ecology diet feeding ecology morphology phytoplankton polyp prey capture trophic environment Argentina Argentina Buenos Aires [Argentina] algae Cnidaria Fungi Hydra Hydra vulgaris Hydrozoa Invertebrata Deserti, M.I. Esquius, K.S. Escalante, A.H. Acuña, F.H. Trophic ecology and diet of Hydra vulgaris (Cnidaria; Hydrozoa)
topic_facet	Argentina Buenos Aires province Genus hydra Trophic ecology diet feeding ecology morphology phytoplankton polyp prey capture trophic environment Argentina Argentina Buenos Aires [Argentina] algae Cnidaria Fungi Hydra Hydra vulgaris Hydrozoa Invertebrata
description	Hydra is a genus of common, sessile, solitary freshwater cnidarians, which are defined as carnivorous and efficient predators. The purpose of this study was to obtain information on the feeding habits and diet of Hydra vulgaris collected from its natural habitat in Nahuel Rucá Lake (Buenos Aires Province, Argentina). We found three categories of food items in the coelenteron: Algae, fungi, and small invertebrates. Algae dominated the diet in terms of abundance and frequency of occurrence, but their volumetric contribution was almost negligible, as was their possible nutritional value. Invertebrate prey captured, using active predation, represented the major volumetric contribution, with four different taxa found. The detection of phytoplankton in the gastral cavities reveals the input of some organisms present in the surrounding waters in addition to the invertebrates. This information is novel, since studies on the natural diet of Hydra are very scarce. © koninklijke brill nv, leiden, 2017.
format	JOUR
author	Deserti, M.I. Esquius, K.S. Escalante, A.H. Acuña, F.H.
author_facet	Deserti, M.I. Esquius, K.S. Escalante, A.H. Acuña, F.H.
author_sort	Deserti, M.I.
title	Trophic ecology and diet of Hydra vulgaris (Cnidaria; Hydrozoa)
title_short	Trophic ecology and diet of Hydra vulgaris (Cnidaria; Hydrozoa)
title_full	Trophic ecology and diet of Hydra vulgaris (Cnidaria; Hydrozoa)
title_fullStr	Trophic ecology and diet of Hydra vulgaris (Cnidaria; Hydrozoa)
title_full_unstemmed	Trophic ecology and diet of Hydra vulgaris (Cnidaria; Hydrozoa)
title_sort	trophic ecology and diet of hydra vulgaris (cnidaria; hydrozoa)
url	http://hdl.handle.net/20.500.12110/paper_15707555_v67_n3-4_p287_Deserti
work_keys_str_mv	AT desertimi trophicecologyanddietofhydravulgariscnidariahydrozoa AT esquiusks trophicecologyanddietofhydravulgariscnidariahydrozoa AT escalanteah trophicecologyanddietofhydravulgariscnidariahydrozoa AT acunafh trophicecologyanddietofhydravulgariscnidariahydrozoa
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Trophic ecology and diet of Hydra vulgaris (Cnidaria; Hydrozoa)

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