Monthly occurrence of parasites of the chaetognath Sagitta friderici off Mar del Plata, Argentina
During a 1-year study period between March 2000 and 2001, 195 (6%) out of 3236 Sagitta friderici were found to be parasitized by metacercariae of digenean species and metacestodes. Parasites belonged to Derogenes sp., Ectenurus virgulus, Monascus filiformis, Lepocreadiidae, Parahemiurus merus and te...
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todo:paper_01427873_v30_n5_p567_Daponte2023-10-03T14:58:59Z Monthly occurrence of parasites of the chaetognath Sagitta friderici off Mar del Plata, Argentina Daponte, M.C. Gil De Pertierra, A.A. Palmieri, M.A. Ostrowski De Nuñez, M. castration developmental stage invertebrate maturation parasite parasite prevalence parasitism species occurrence species richness Argentina Buenos Aires [Argentina] Mar del Plata South America Chaetognatha Copepoda Corycaeus amazonicus Derogenes Ectenurus virgulus Lepocreadiidae Monascus Monascus filiformis Nematoda Parahemiurus merus Parasagitta fredrici Polychaeta Tetraphyllidea During a 1-year study period between March 2000 and 2001, 195 (6%) out of 3236 Sagitta friderici were found to be parasitized by metacercariae of digenean species and metacestodes. Parasites belonged to Derogenes sp., Ectenurus virgulus, Monascus filiformis, Lepocreadiidae, Parahemiurus merus and tetraphyllidean metacestodes. Among the chaetognaths parasitized, 178 (91%) harboured one parasite, and the remaining 17 (9%) showed two or three parasites of the same or two different species. The highest prevalences for most of the species occurred in autumn-winter (April-August), except for E. virgulus, which had maximum values in summer (December-January). Species richness varied during the year, reaching a peak in May and June 2000 with six species. The metacercariae of Lepocreadiidae were present in autumn, winter and summer at all maturity stages of S. friderici, with higher prevalence values for stages 0 and I, whereas the rest of the digeneans were absent in stage 0, with higher prevalences for the more advanced maturity stages II and III. The different types of metacercariae did not seem to induce castration in the host. Copepods (Corycaeus amazonicus) were observed attached to the body of chaetognaths or partially digested in their gut. No nematodes, internal parasitic copepods or polychaetes were found. © The Author 2008. Published by Oxford University Press. All rights reserved. Fil:Daponte, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Palmieri, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ostrowski De Nuñez, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01427873_v30_n5_p567_Daponte |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
castration developmental stage invertebrate maturation parasite parasite prevalence parasitism species occurrence species richness Argentina Buenos Aires [Argentina] Mar del Plata South America Chaetognatha Copepoda Corycaeus amazonicus Derogenes Ectenurus virgulus Lepocreadiidae Monascus Monascus filiformis Nematoda Parahemiurus merus Parasagitta fredrici Polychaeta Tetraphyllidea |
| spellingShingle |
castration developmental stage invertebrate maturation parasite parasite prevalence parasitism species occurrence species richness Argentina Buenos Aires [Argentina] Mar del Plata South America Chaetognatha Copepoda Corycaeus amazonicus Derogenes Ectenurus virgulus Lepocreadiidae Monascus Monascus filiformis Nematoda Parahemiurus merus Parasagitta fredrici Polychaeta Tetraphyllidea Daponte, M.C. Gil De Pertierra, A.A. Palmieri, M.A. Ostrowski De Nuñez, M. Monthly occurrence of parasites of the chaetognath Sagitta friderici off Mar del Plata, Argentina |
| topic_facet |
castration developmental stage invertebrate maturation parasite parasite prevalence parasitism species occurrence species richness Argentina Buenos Aires [Argentina] Mar del Plata South America Chaetognatha Copepoda Corycaeus amazonicus Derogenes Ectenurus virgulus Lepocreadiidae Monascus Monascus filiformis Nematoda Parahemiurus merus Parasagitta fredrici Polychaeta Tetraphyllidea |
| description |
During a 1-year study period between March 2000 and 2001, 195 (6%) out of 3236 Sagitta friderici were found to be parasitized by metacercariae of digenean species and metacestodes. Parasites belonged to Derogenes sp., Ectenurus virgulus, Monascus filiformis, Lepocreadiidae, Parahemiurus merus and tetraphyllidean metacestodes. Among the chaetognaths parasitized, 178 (91%) harboured one parasite, and the remaining 17 (9%) showed two or three parasites of the same or two different species. The highest prevalences for most of the species occurred in autumn-winter (April-August), except for E. virgulus, which had maximum values in summer (December-January). Species richness varied during the year, reaching a peak in May and June 2000 with six species. The metacercariae of Lepocreadiidae were present in autumn, winter and summer at all maturity stages of S. friderici, with higher prevalence values for stages 0 and I, whereas the rest of the digeneans were absent in stage 0, with higher prevalences for the more advanced maturity stages II and III. The different types of metacercariae did not seem to induce castration in the host. Copepods (Corycaeus amazonicus) were observed attached to the body of chaetognaths or partially digested in their gut. No nematodes, internal parasitic copepods or polychaetes were found. © The Author 2008. Published by Oxford University Press. All rights reserved. |
| format |
JOUR |
| author |
Daponte, M.C. Gil De Pertierra, A.A. Palmieri, M.A. Ostrowski De Nuñez, M. |
| author_facet |
Daponte, M.C. Gil De Pertierra, A.A. Palmieri, M.A. Ostrowski De Nuñez, M. |
| author_sort |
Daponte, M.C. |
| title |
Monthly occurrence of parasites of the chaetognath Sagitta friderici off Mar del Plata, Argentina |
| title_short |
Monthly occurrence of parasites of the chaetognath Sagitta friderici off Mar del Plata, Argentina |
| title_full |
Monthly occurrence of parasites of the chaetognath Sagitta friderici off Mar del Plata, Argentina |
| title_fullStr |
Monthly occurrence of parasites of the chaetognath Sagitta friderici off Mar del Plata, Argentina |
| title_full_unstemmed |
Monthly occurrence of parasites of the chaetognath Sagitta friderici off Mar del Plata, Argentina |
| title_sort |
monthly occurrence of parasites of the chaetognath sagitta friderici off mar del plata, argentina |
| url |
http://hdl.handle.net/20.500.12110/paper_01427873_v30_n5_p567_Daponte |
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