“… Fig. 1 Map of the Eastern Caribbean region showing collection sites for the current study and Cook et al, 2015 . …”
Section: Methodsmentioning
confidence: 99%
“…Blood samples were collected within 24 h of capture following Cook et al (2015) . The sampling procedure was authorized by Arkansas State University IACUC approval #326673-1.…”
Section: Methodsmentioning
confidence: 99%
“…In a recent survey of hemoparasite biodiversity of reef-associated fishes of the eastern Caribbean, Cook et al (2015) sampled 1298 individual fish from 6 eastern Caribbean islands, representing 27 families, 57 genera and 103 species. In all, members of 14 species from 8 families were infected with 8 distinct types of blood parasites, 6 of which were apicomplexan.…”
Section: Introductionmentioning
confidence: 99%
“…In all, members of 14 species from 8 families were infected with 8 distinct types of blood parasites, 6 of which were apicomplexan. These included a newly discovered intraerythrocytic parasite that was tentatively referred to as Haemohormidium -like and was common in adults of three species of Stegastes damselfishes (Pomacentridae) including S. adustus , S. diencaeus and S. leucostictus ( Cook et al, 2015 ). This blood parasite was rare or absent in three other species of Stegastes and was absent in A. saxatilis and both Caribbean Chromis spp.…”
Section: Introductionmentioning
confidence: 99%
“…Phylogenetic analysis of this parasite by Renoux et al (2017) placed it at the base of a major monophyletic clade containing species of coccidia, suggesting it to be more closely related to this group than to the pirosplasms, the group to which the Haemohormidiidae have been assigned pending molecular support (see O'Donoghue, 2017 ). As a follow-up to the work of Cook et al (2015) and Renoux et al (2017) , the aim of the current study was to determine the geographic distribution and host-association of this parasite in damselfishes in the eastern Caribbean. Specifically, we: 1) further quantify which damselfish species and life history stages are infected by the Haemohormidium -like blood parasite, increasing the sample size for under-sampled species and including juvenile life history stages; and 2) further elucidate the geographic distribution and phylogenetic affiliation of this blood parasite in the eastern Caribbean.…”
Coral reefs harbor the greatest biodiversity per unit area of any ecosystem on earth. While parasites constitute the majority of this biodiversity, they remain poorly studied due to the cryptic nature of many parasites and the lack of appropriate training among coral reef ecologists. Damselfishes (Pomacentridae) are among the most abundant and diverse fishes on coral reefs. In a recent study of blood parasites of Caribbean reef fishes, the first ever apicomplexan blood parasites discovered in damselfishes were reported for members of the genus Stegastes. While these blood parasites were characterized as “Haemohormidium-like”, they appear to be distinct from any other known apicomplexan. In this study, we examined host associations, geographic distributions, and provide further insights on the phylogenetic affiliation of this parasite. A combination of morphological characteristics and 18S rDNA sequences suggest that this parasite may be the same species at multiple sites and occurs from the southern to the northern extreme of the eastern Caribbean, although it appears rare in the north. At present it appears to be limited to members of the genus Stegastes and infects all life history stages. It is most common in benthophagous species that occur in high population densities and appears basal to a major monophyletic clade containing species of coccidia, distinct from the Piroplasmida, the order to which Haemohormidium spp. have been assigned. These findings suggest a possible fecal-oral mode of transmission.
“… Fig. 1 Map of the Eastern Caribbean region showing collection sites for the current study and Cook et al, 2015 . …”
Section: Methodsmentioning
confidence: 99%
“…Blood samples were collected within 24 h of capture following Cook et al (2015) . The sampling procedure was authorized by Arkansas State University IACUC approval #326673-1.…”
Section: Methodsmentioning
confidence: 99%
“…In a recent survey of hemoparasite biodiversity of reef-associated fishes of the eastern Caribbean, Cook et al (2015) sampled 1298 individual fish from 6 eastern Caribbean islands, representing 27 families, 57 genera and 103 species. In all, members of 14 species from 8 families were infected with 8 distinct types of blood parasites, 6 of which were apicomplexan.…”
Section: Introductionmentioning
confidence: 99%
“…In all, members of 14 species from 8 families were infected with 8 distinct types of blood parasites, 6 of which were apicomplexan. These included a newly discovered intraerythrocytic parasite that was tentatively referred to as Haemohormidium -like and was common in adults of three species of Stegastes damselfishes (Pomacentridae) including S. adustus , S. diencaeus and S. leucostictus ( Cook et al, 2015 ). This blood parasite was rare or absent in three other species of Stegastes and was absent in A. saxatilis and both Caribbean Chromis spp.…”
Section: Introductionmentioning
confidence: 99%
“…Phylogenetic analysis of this parasite by Renoux et al (2017) placed it at the base of a major monophyletic clade containing species of coccidia, suggesting it to be more closely related to this group than to the pirosplasms, the group to which the Haemohormidiidae have been assigned pending molecular support (see O'Donoghue, 2017 ). As a follow-up to the work of Cook et al (2015) and Renoux et al (2017) , the aim of the current study was to determine the geographic distribution and host-association of this parasite in damselfishes in the eastern Caribbean. Specifically, we: 1) further quantify which damselfish species and life history stages are infected by the Haemohormidium -like blood parasite, increasing the sample size for under-sampled species and including juvenile life history stages; and 2) further elucidate the geographic distribution and phylogenetic affiliation of this blood parasite in the eastern Caribbean.…”
Coral reefs harbor the greatest biodiversity per unit area of any ecosystem on earth. While parasites constitute the majority of this biodiversity, they remain poorly studied due to the cryptic nature of many parasites and the lack of appropriate training among coral reef ecologists. Damselfishes (Pomacentridae) are among the most abundant and diverse fishes on coral reefs. In a recent study of blood parasites of Caribbean reef fishes, the first ever apicomplexan blood parasites discovered in damselfishes were reported for members of the genus Stegastes. While these blood parasites were characterized as “Haemohormidium-like”, they appear to be distinct from any other known apicomplexan. In this study, we examined host associations, geographic distributions, and provide further insights on the phylogenetic affiliation of this parasite. A combination of morphological characteristics and 18S rDNA sequences suggest that this parasite may be the same species at multiple sites and occurs from the southern to the northern extreme of the eastern Caribbean, although it appears rare in the north. At present it appears to be limited to members of the genus Stegastes and infects all life history stages. It is most common in benthophagous species that occur in high population densities and appears basal to a major monophyletic clade containing species of coccidia, distinct from the Piroplasmida, the order to which Haemohormidium spp. have been assigned. These findings suggest a possible fecal-oral mode of transmission.
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