Experimental evidence for a hierarchy of mate- and host-induced cues in a fish ectoparasite, Argulus coregoni (Crustacea: Branchiura)

Bandilla, M.; Hakalahti-Sirén, Teija; Valtonen, E. T.

doi:10.1016/j.ijpara.2007.04.004

Cited by 14 publications

(12 citation statements)

References 36 publications

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“…Similar observations are available for A. coregeni, A. foliaceus, and A. japonicus (Shafir and Oldewage 1992;Harrison et al 2006;Bandilla et al 2007). Although the age-specific survivorship was similar for male and female A. bengalensis, the life expectancy, a predictor of longevity of individuals, was significantly different (Figure 3), indicating possible sex-specific differences in investment towards reproduction and fitness.…”

Section: Invertebrate Reproduction and Development 305supporting

confidence: 70%

“…is a useful indicator of parasite-fish host interactions and the level of impact on the host species. Empirical evidence suggests that the infestation and impact on different fish hosts by A. foliaceus (Pasternak et al 2000), A. canadensis Fitzgerald 1989a, 1989b), A. coregoni (Bandilla et al 2004;Pasternak et al 2004aPasternak et al , 2004b, and A. japonicus (Shafir and Oldewage 1992;Harrison et al 2006;Bandilla et al 2007) vary with their life history features. The management of these parasites in field conditions can be enhanced if the life history parameters are evaluated so as to retrieve the key features in maintenance and perpetuation of the parasite population.…”

Section: Introductionmentioning

confidence: 99%

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Survivorship and fecundity ofArgulus bengalensis(Crustacea; Branchiura) under laboratory conditions

Guha

Aditya

Saha

2013

Invertebrate Reproduction & Development

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The Life table features and the fecundity schedule of the fish louse Argulus bengalensis (Branchiura: Argulidae) were estimated under laboratory conditions using Cirrhinus mrigala as the model host. The cohort-based Life table revealed that survival of A. bengalensis declines as a function of age. Life expectancy was observed to be 34 days for a newly emerged adult. The mean number of eggs produced per egg strip was 86 (±8.89 S.E.). The sex ratio 2:1 was biased towards males. The net reproductive rate (R 0 ) varied between 50 and 487 while the cohort generation time (T c ) ranged between 24 and 26 days. The intrinsic rate of increase (r) was 0.14-0.23, while the finite rate of increase (λ) remained between 1.16 and 1.28. The Life table features and the fecundity schedule of A. bengalensis are comparable with congenerics of temperate regions. Early reproduction (between 21 and 23 days) and an extended postreproductive phase (47 days) of females are characteristic of A. bengalensis and a reflection for survival under uncertain conditions and a parasitic mode of life.

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Section: Invertebrate Reproduction and Development 305supporting

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Survivorship and fecundity ofArgulus bengalensis(Crustacea; Branchiura) under laboratory conditions

Guha

Aditya

Saha

2013

Invertebrate Reproduction & Development

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“…They frequently detach from the hosts (Table 2 ) and spend much more time swimming than females [ 21 , 43 ]. Males of A. coregoni are able to detect and respond to sex pheromones produced by females attached to a fish [ 44 ]. We have observed that mature females of A. foliaceus swimming in the water do not attract males.…”

Section: Reviewmentioning

confidence: 99%

“…Males of fish lice risk energy loss and increased mortality while swimming and switching hosts. Females of both A. foliaceus and A. coregoni are stationary on their host [ 21 , 44 ] and produce pheromones [ 44 ] like pre-adult female sea lice, Lepeophtheirus salmonis do when attracting males [ 45 ]. Together with the fish and their ‘odour’, females make large, attractive targets for males.…”

Section: Reviewmentioning

confidence: 99%

Behavioural adaptations of argulid parasites (Crustacea: Branchiura) to major challenges in their life cycle

2015

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Fish lice (Argulus spp.) are obligate ectoparasites, which contrary to most aquatic parasites, retain the ability to swim freely throughout the whole of their life. In fish farms, they can quickly increase in numbers and without effective control cause argulosis, which results in the reduced growth and survival of their fish hosts. The morphology of Argulus spp, including their sensory organs, is suitable for both parasitism and free-swimming. By spending a considerable amount of time away from their host, these parasites risk being excessively dispersed, which could endanger mating success. Here we present a review of recent studies on the behaviour of Argulus spp, especially the aggregative behaviour that mitigates the dilution of the parasite population. Aggregation of parasites, which is especially important during the period of reproduction, occurs on different scales and involves both the aggregation of the host and the aggregation of the parasites on the host. The main behavioural adaptations of Argulus spp, including searches for hosts and mates, host manipulation and host choice, are all focused on the fish. As these ectoparasites repeatedly change hosts and inflict skin damage, they can act as vectors for fish pathogens. The development of environmentally friendly measures for the control and prevention of argulosis needs to take into account the behaviour of the parasites.

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“…These are known to exploit a wide variety of sensory cues to locate and recognize their hosts at some distance, ranging from general cues, delivered by all potential hosts, like light (e.g. Humphries, 1968 ;Poulin et al 1990 ;Mikheev et al 1998 ;Bandilla et al 2007), vibration (e.g. Lawrence, 1981 ;Poulin et al 1990), heat (e.g.…”

Section: Introductionmentioning

confidence: 99%

How do ectoparasitic nycteribiids locate their bat hosts?

Lourenço

Palmeirim

2008

Parasitology

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Nycteribiids (Diptera: Nycteribiidae) are specific haematophagous ectoparasites of bats, which spend nearly all their adult lives on hosts. However, females have to leave bats to deposit their larva on the walls of the roosts, where they later emerge as adult flies. Nycteribiids had thus to evolve efficient sensorial mechanisms to locate hosts from a distance. We studied the sensory cues involved in this process, experimentally testing the role of specific host odours, and general cues such as carbon dioxide, body heat, and vibrations. As models we used two nycteribiids (Penicillidia conspicua and Penicillidia dufourii) and their primary bat hosts (Miniopterus schreibersii and Myotis myotis, respectively). Carbon dioxide was the most effective cue activating and orientating the responses of nycteribiids, followed by body heat and body odours. They also responded to vibration, but did not orientate to its source. In addition, sensory cues combined (carbon dioxide and body heat) were more effective in orientating nycteribiids than either cue delivered alone. Results suggest that nycteribids have some capacity to distinguish specific hosts from a distance, probably through their specific body odours. However, the strong reliance of nycteribiids on cues combined indicates that they follow these to orientate to nearby multispecies bat clusters, where the chances of finding their primary hosts are high. The combination of sensory cues seems therefore an effective strategy used by nycteribiids to locate bat hosts at a distance.

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Experimental evidence for a hierarchy of mate- and host-induced cues in a fish ectoparasite, Argulus coregoni (Crustacea: Branchiura)

Cited by 14 publications

References 36 publications

Survivorship and fecundity ofArgulus bengalensis(Crustacea; Branchiura) under laboratory conditions

Survivorship and fecundity ofArgulus bengalensis(Crustacea; Branchiura) under laboratory conditions

Behavioural adaptations of argulid parasites (Crustacea: Branchiura) to major challenges in their life cycle

How do ectoparasitic nycteribiids locate their bat hosts?

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