| 000 | 02325nab a2200253 a 4500 | ||
|---|---|---|---|
| 003 | AR-ReUNN | ||
| 005 | 20260702003102.0 | ||
| 008 | 260630s2007 ag |||||||||||||||||eng | ||
| 041 | 0 | _aeng | |
| 100 | 1 |
_aGrutter, Alexandra S. _9147741 |
|
| 245 | 1 | 0 | _aParasite removal rates by the cleaner wrasse Labroides dimidiatus / Alexandra S. Grutter |
| 264 | 1 | _c2007 | |
| 300 | _a10 páginas | ||
| 520 | _aABSTRACT: The rate at which parasites (mainly gnathiid isopod larvae) were removed from fish by the cleaner wrasse Labroides dimidiatus was investigated. To examine the effect of this parasite removal on the parasites of fish, the number of parasites removed per individual host fish Hemigyrnnus melapterus per day was estimated and compared to the infection, rate and abundance of gnathiids on H. melapterus. The study was conducted at Lizard Island, Great Barrier Reef, Australia, using a combination of observations of the feeding rates of cleaners, estimates of how much time lndividual hosts spend being cleaned, cleaner fish stomach content analyses, and a gnathiid manipulation experiment. The frequency and duration of inspection by L. dimidiatus were measured to provide an estimate of the feeding rate. lndividual L. dimidiatus spent on average 256 + 11 (SE) min d-1 inspecting 2297 + 83 fish. L. dlmldiatcis consumed a large number of parasites (1218 k 118, mainly gnathiid isopods) each day. The estimated predation rate by L. dirnidiatus was 4.8 t 0.4 parasites per minute of inspection or 0.5 + 0.05 parasites per inspection. The infection rate of gnathiids onto fish was high, with reduced gnathiid loads (by about 50%) on fish returning to levels similar to control fish within 1 to 6 d. These high infection rates suggest that a significant proportion of gnathiids removed by cleaner fish are quickly replaced. The high predation rate relative to the number of gnathiids on fish and their infection rate shows that cleaner fish have an effect on the abundance of gnathiids on fish. | ||
| 650 | 4 |
_aParasites _9147046 |
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| 650 | 4 |
_aBehaviour _9147420 |
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| 650 | 4 |
_aFish _9130097 |
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| 650 | 4 |
_aPredation _9147746 |
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| 650 | 4 |
_aLabroides Dimidiatus _9147745 |
|
| 773 | 0 |
_tMarine Ecology Progress Series _x0171-8630 _gv. 130 (1996) _w234895 |
|
| 942 | _cART | ||
| 035 | _a(INICN)44352 | ||
| 001 | 234898 | ||
| 999 |
_c234898 _d234898 |
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| 040 |
_aAR-ReUNN _bspa _cAR-ReUNN _eaacr2 |
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