Abstract
A wild-caught captive sandbar shark Carcharhinus plumbeus developed a contiguous network of darkly pigmented linear tracks that progressed from the snout to the ventral cervical region. Microscopic examination of a skin scraping revealed nematode eggs of the genus Huffmanela, a group of histozoic nematodes that is known to parasitize requiem sharks and marine and freshwater teleosts. The fresh eggs were darkly pigmented with bipolar plugs, contained a larva, and measured 73.3 to 86.4 by 39.0 to 47.4 μm (n = 10). Formalin-fixed and paraffin-embedded eggs were significantly smaller (Wilcoxon rank sums test, p < 0.005), measuring 70.5 to 78.9 by 33.6 to 41.3 μm (n = 13). These measurements do not correlate with previously reported species of Huffmanela. Serial treatment with levamisole (10 mg kg-1, intramuscular [i.m.]) cleared the egg tracks within 21 d, with no recurrence or apparent complications.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 83-88 |
| Number of pages | 6 |
| Journal | Diseases of Aquatic Organisms |
| Volume | 73 |
| Issue number | 1 |
| State | Published - Nov 21 2006 |
| Externally published | Yes |
Fingerprint
Keywords
- Carcharhinus plumbeus
- Elasmobranchii
- Huffmanela
- Levamisole
- Parasitic nematode
ASJC Scopus subject areas
- Aquatic Science
- Ecology
Cite this
Clearance of a dermal Huffmanela sp. in a sandbar shark (Carcharhinus plumbeus) using levamisole. / MacLean, Robert A.; Fatzinger, Michael H.; Woolard, Kevin D; Harms, Craig A.
In: Diseases of Aquatic Organisms, Vol. 73, No. 1, 21.11.2006, p. 83-88.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Clearance of a dermal Huffmanela sp. in a sandbar shark (Carcharhinus plumbeus) using levamisole
AU - MacLean, Robert A.
AU - Fatzinger, Michael H.
AU - Woolard, Kevin D
AU - Harms, Craig A.
PY - 2006/11/21
Y1 - 2006/11/21
N2 - A wild-caught captive sandbar shark Carcharhinus plumbeus developed a contiguous network of darkly pigmented linear tracks that progressed from the snout to the ventral cervical region. Microscopic examination of a skin scraping revealed nematode eggs of the genus Huffmanela, a group of histozoic nematodes that is known to parasitize requiem sharks and marine and freshwater teleosts. The fresh eggs were darkly pigmented with bipolar plugs, contained a larva, and measured 73.3 to 86.4 by 39.0 to 47.4 μm (n = 10). Formalin-fixed and paraffin-embedded eggs were significantly smaller (Wilcoxon rank sums test, p < 0.005), measuring 70.5 to 78.9 by 33.6 to 41.3 μm (n = 13). These measurements do not correlate with previously reported species of Huffmanela. Serial treatment with levamisole (10 mg kg-1, intramuscular [i.m.]) cleared the egg tracks within 21 d, with no recurrence or apparent complications.
AB - A wild-caught captive sandbar shark Carcharhinus plumbeus developed a contiguous network of darkly pigmented linear tracks that progressed from the snout to the ventral cervical region. Microscopic examination of a skin scraping revealed nematode eggs of the genus Huffmanela, a group of histozoic nematodes that is known to parasitize requiem sharks and marine and freshwater teleosts. The fresh eggs were darkly pigmented with bipolar plugs, contained a larva, and measured 73.3 to 86.4 by 39.0 to 47.4 μm (n = 10). Formalin-fixed and paraffin-embedded eggs were significantly smaller (Wilcoxon rank sums test, p < 0.005), measuring 70.5 to 78.9 by 33.6 to 41.3 μm (n = 13). These measurements do not correlate with previously reported species of Huffmanela. Serial treatment with levamisole (10 mg kg-1, intramuscular [i.m.]) cleared the egg tracks within 21 d, with no recurrence or apparent complications.
KW - Carcharhinus plumbeus
KW - Elasmobranchii
KW - Huffmanela
KW - Levamisole
KW - Parasitic nematode
UR - http://www.scopus.com/inward/record.url?scp=33845902274&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33845902274&partnerID=8YFLogxK
M3 - Article
VL - 73
SP - 83
EP - 88
JO - Diseases of Aquatic Organisms
JF - Diseases of Aquatic Organisms
SN - 0177-5103
IS - 1
ER -