Hyperparasitism of the cryptoniscid isopod Liriopsis pygmaea on the lithodid Paralomis granulosa from the Beagle Channel, Argentina
A total of 29 570 false king crab Paralomis granulosa were sampled from the Beagle Channel (54° 51′S, 68° 12′W), Tierra del Fuego, Argentina, between July 1996 and August 1998. Crab size varied from 6.8 to 111.2 mm carapace length (CL). A few crabs parasitized by the rhizocephalan Briarosaccus callo...
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2004
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01775103_v58_n1_p71_Lovrich http://hdl.handle.net/20.500.12110/paper_01775103_v58_n1_p71_Lovrich |
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paper:paper_01775103_v58_n1_p71_Lovrich2023-06-08T15:19:06Z Hyperparasitism of the cryptoniscid isopod Liriopsis pygmaea on the lithodid Paralomis granulosa from the Beagle Channel, Argentina Briarosaccus callosus Epicaridea King crab Magellan Region Rhizocephala Subantarctic crab isopod parasite prevalence parasitism Beagle Channel South America Western Hemisphere World Briarosaccus callosus Briarosaccus callosus Chaceon affinis Decapoda Decapoda (Crustacea) Epicaridea Isopoda Isopoda Limulus Liriopsis pygmaea Liriopsis pygmaea Lithodidae Paralomis Paralomis granulosa Paralomis granulosa Pseudione Pseudione tuberculata Pseudione tuberculata Rhizocephala sea water animal Argentina article comparative study Decapoda (Crustacea) growth, development and aging histology host parasite interaction Isopoda larva life cycle parasitology physiology prevalence Animals Argentina Decapoda (Crustacea) Host-Parasite Relations Isopoda Larva Life Cycle Stages Prevalence Seawater A total of 29 570 false king crab Paralomis granulosa were sampled from the Beagle Channel (54° 51′S, 68° 12′W), Tierra del Fuego, Argentina, between July 1996 and August 1998. Crab size varied from 6.8 to 111.2 mm carapace length (CL). A few crabs parasitized by the rhizocephalan Briarosaccus callosus were found; prevalences of externae (the rhizocephalan reproductive body) and scars (the mark left on the host after the death of the parasite) were 0.28 and 0.16%, respectively. Of 85 externae examined, 55 were non-ovigerous and 30 ovigerous. The cryptoniscid isopod Liriopsis pygmaea infested 36.5% of the B. callosus examined. The most abundant stage was the cryptonicus larva, accounting for 208 of the 238 L. pygmaea recovered. Cryptonisci showed a highly aggregated distribution. A total of 92.7% of cryptonicsci were recovered inside empty externae, suggesting that the latter were attractive to cryptonisci. Early subadult females of L. pygmaea were rare; only 3 individuals occurred inside 1 ovigerous externa. Eight late subadult and 18 adult females were found on 3 and 7 non-ovigerous externae, respectively; in addition, 1 aberrant late subadult was found on 1 ovigerous externa. In the Beagle Channel, the population of P. granulosa harbours 3 different parasites: the bopyrid isopod Pseudione tuberculata, which reaches highest prevalence at 10 to 20 mm CL, the rhizocephalan B. callosus, with highest prevalence at 20 to 40 mm CL, and the cryptoniscid isopod L. pygmaea, which mainly infests rhizocephalan on crabs >40 mm CL. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01775103_v58_n1_p71_Lovrich http://hdl.handle.net/20.500.12110/paper_01775103_v58_n1_p71_Lovrich |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Briarosaccus callosus Epicaridea King crab Magellan Region Rhizocephala Subantarctic crab isopod parasite prevalence parasitism Beagle Channel South America Western Hemisphere World Briarosaccus callosus Briarosaccus callosus Chaceon affinis Decapoda Decapoda (Crustacea) Epicaridea Isopoda Isopoda Limulus Liriopsis pygmaea Liriopsis pygmaea Lithodidae Paralomis Paralomis granulosa Paralomis granulosa Pseudione Pseudione tuberculata Pseudione tuberculata Rhizocephala sea water animal Argentina article comparative study Decapoda (Crustacea) growth, development and aging histology host parasite interaction Isopoda larva life cycle parasitology physiology prevalence Animals Argentina Decapoda (Crustacea) Host-Parasite Relations Isopoda Larva Life Cycle Stages Prevalence Seawater |
| spellingShingle |
Briarosaccus callosus Epicaridea King crab Magellan Region Rhizocephala Subantarctic crab isopod parasite prevalence parasitism Beagle Channel South America Western Hemisphere World Briarosaccus callosus Briarosaccus callosus Chaceon affinis Decapoda Decapoda (Crustacea) Epicaridea Isopoda Isopoda Limulus Liriopsis pygmaea Liriopsis pygmaea Lithodidae Paralomis Paralomis granulosa Paralomis granulosa Pseudione Pseudione tuberculata Pseudione tuberculata Rhizocephala sea water animal Argentina article comparative study Decapoda (Crustacea) growth, development and aging histology host parasite interaction Isopoda larva life cycle parasitology physiology prevalence Animals Argentina Decapoda (Crustacea) Host-Parasite Relations Isopoda Larva Life Cycle Stages Prevalence Seawater Hyperparasitism of the cryptoniscid isopod Liriopsis pygmaea on the lithodid Paralomis granulosa from the Beagle Channel, Argentina |
| topic_facet |
Briarosaccus callosus Epicaridea King crab Magellan Region Rhizocephala Subantarctic crab isopod parasite prevalence parasitism Beagle Channel South America Western Hemisphere World Briarosaccus callosus Briarosaccus callosus Chaceon affinis Decapoda Decapoda (Crustacea) Epicaridea Isopoda Isopoda Limulus Liriopsis pygmaea Liriopsis pygmaea Lithodidae Paralomis Paralomis granulosa Paralomis granulosa Pseudione Pseudione tuberculata Pseudione tuberculata Rhizocephala sea water animal Argentina article comparative study Decapoda (Crustacea) growth, development and aging histology host parasite interaction Isopoda larva life cycle parasitology physiology prevalence Animals Argentina Decapoda (Crustacea) Host-Parasite Relations Isopoda Larva Life Cycle Stages Prevalence Seawater |
| description |
A total of 29 570 false king crab Paralomis granulosa were sampled from the Beagle Channel (54° 51′S, 68° 12′W), Tierra del Fuego, Argentina, between July 1996 and August 1998. Crab size varied from 6.8 to 111.2 mm carapace length (CL). A few crabs parasitized by the rhizocephalan Briarosaccus callosus were found; prevalences of externae (the rhizocephalan reproductive body) and scars (the mark left on the host after the death of the parasite) were 0.28 and 0.16%, respectively. Of 85 externae examined, 55 were non-ovigerous and 30 ovigerous. The cryptoniscid isopod Liriopsis pygmaea infested 36.5% of the B. callosus examined. The most abundant stage was the cryptonicus larva, accounting for 208 of the 238 L. pygmaea recovered. Cryptonisci showed a highly aggregated distribution. A total of 92.7% of cryptonicsci were recovered inside empty externae, suggesting that the latter were attractive to cryptonisci. Early subadult females of L. pygmaea were rare; only 3 individuals occurred inside 1 ovigerous externa. Eight late subadult and 18 adult females were found on 3 and 7 non-ovigerous externae, respectively; in addition, 1 aberrant late subadult was found on 1 ovigerous externa. In the Beagle Channel, the population of P. granulosa harbours 3 different parasites: the bopyrid isopod Pseudione tuberculata, which reaches highest prevalence at 10 to 20 mm CL, the rhizocephalan B. callosus, with highest prevalence at 20 to 40 mm CL, and the cryptoniscid isopod L. pygmaea, which mainly infests rhizocephalan on crabs >40 mm CL. |
| title |
Hyperparasitism of the cryptoniscid isopod Liriopsis pygmaea on the lithodid Paralomis granulosa from the Beagle Channel, Argentina |
| title_short |
Hyperparasitism of the cryptoniscid isopod Liriopsis pygmaea on the lithodid Paralomis granulosa from the Beagle Channel, Argentina |
| title_full |
Hyperparasitism of the cryptoniscid isopod Liriopsis pygmaea on the lithodid Paralomis granulosa from the Beagle Channel, Argentina |
| title_fullStr |
Hyperparasitism of the cryptoniscid isopod Liriopsis pygmaea on the lithodid Paralomis granulosa from the Beagle Channel, Argentina |
| title_full_unstemmed |
Hyperparasitism of the cryptoniscid isopod Liriopsis pygmaea on the lithodid Paralomis granulosa from the Beagle Channel, Argentina |
| title_sort |
hyperparasitism of the cryptoniscid isopod liriopsis pygmaea on the lithodid paralomis granulosa from the beagle channel, argentina |
| publishDate |
2004 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01775103_v58_n1_p71_Lovrich http://hdl.handle.net/20.500.12110/paper_01775103_v58_n1_p71_Lovrich |
| _version_ |
1768542216539602944 |