Multifunctions of the upper lip and a ventral reflecting organ in a bioluminescent ostracod Vargula hilgendorfii (Müller, 1890)

Abe, Katsumi; Ono, Takuo; Yamada, Koshi; Yamamura, Nasono; Ikuta, Kyosuke

doi:10.1007/978-94-017-1508-9_5

Cited by 10 publications

(19 citation statements)

References 5 publications

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“…In Myodocopa, gland cells for bioluminescence are located in the upper lip. Some Myodocopa (Cypridinidae) have paired, flexible nozzlelike processes on the upper lip, which are thought to smear a glandular secretion onto food (Abe et al 2000). Schulz (1976, describing Podocopida) stated that the head capsule is ball-or melonlike in bottom-feeders but more compressed and streamlined in algal dwellers.…”

Section: Comparisons: T Brightae Differs From Most Other Species Ofmentioning

confidence: 99%

Three new species of podocopid ostracoda from hydrothermal vent fields at 9 50'N on the East Pacific Rise

Maddocks

2005

Micropaleontology

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Section: Comparisons: T Brightae Differs From Most Other Species Ofmentioning

confidence: 99%

Three new species of podocopid ostracoda from hydrothermal vent fields at 9 50'N on the East Pacific Rise

Maddocks

2005

Micropaleontology

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“…Each display train is secreted as a series of multi-component packets into the water column (Morin, 1986;Morin and Cohen, 1991). The luminescent compounds are synthesized in a luminescent organ made up of long secretory or exocrine cells, with each one extending the entire length of the light organ and terminating at nozzles on the upper lip (Huvard, 1993;Abe et al, 2000). Muscle bands around and through the light organ apparently contract, squeezing the compounds into the water (Huvard, 1993) to produce controlled species-specific patterns.…”

Section: Introductionmentioning

confidence: 99%

Complex sexual courtship displays by luminescent male marine ostracods

Rivers

Morin

2008

Journal of Experimental Biology

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SUMMARYIn the western Caribbean Sea, about an hour after the sun sets, a complex and ritualized light show of precise, vertically placed luminescent pulses erupts over shallow grassbeds. These are among the most complex displays known in marine systems. Displays consist of repeated trains of secreted bioluminescent pulses in a specific pattern ejected into the water column as courtship signals by male Vargula annecohenae, which are small (<2 mm) myodocopid ostracod crustaceans. Although these animals display in near darkness, we have used image intensification and infrared videography and three-dimensional analysis in the lab to demonstrate that each luminescent display train, which can be up to 60 cm long, consists of two distinct luminescent and swimming phases. The first, or 'stationary,' phase consists of three (usually) bright, longer pulses placed close together, with the male swimming in a looping pattern. We hypothesize that this pattern acts as an attention-grabbing signal for receptive females. The stationary phase is followed by the 'helical phase,' which consists of about a dozen evenly placed dimmer, shorter pulses secreted by an individual male rapidly spiraling upward in a helical pattern. We hypothesize that this phase, which has very uniform interpulse intervals and distances, helps an approaching female target and intercept the rapidly moving male. Here we provide details of these two phases, and produce a three-dimensional model of a multiply-displaying male.

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Section: Discussionmentioning

confidence: 98%

“…The upper lip of ostracods is regarded as being related to feeding activity, in order to produce more efficient ingestion, and/or for the secretion of digestive fluids (Abe et al ., ; Smith, ). In the Myodocopa other functions have also been recognized, such as the secretion of mucus (Huvard, ) and of luminescent substances consisting of the ostracod luciferin and luciferase (Yatsu, ; Huvard, ; Abe et al ., ). In the Caribbean, such light emission functions in the species‐specific flashing patterns used by males to attract females, and as a result these visual cues are likely to allow for pre‐mating reproductive isolation mechanisms to take place (Morin & Cohen, , ).…”

Section: Discussionmentioning

confidence: 98%

The mating behaviour of the seed shrimpParapolycope spiralis(Ostracoda: Cladocopina), with insight into the evolution of mating systems in cryptic interstitial habitats

Tanaka

2013

Biol J Linn Soc Lond

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The mating behaviour of the interstitial ostracod Parapolycope spiralis Tanaka & Tsukagoshi, 2010 is reported here for the first time. This species is adapted to an interstitial environment, and is typified by having tiny body size and being completely blind. In this paper it is presumed that the characteristics of the mating behaviour are typical for species in an interstitial environment. Observations by microscopy on mating behaviour in the laboratory showed various distinct stages: (1) the male captures the female by a sucker on the antennula; (2) the male clasps and maintains the mating position using the endopodite, the endopodite claw, and the exopodite of the antenna; (3) the male makes contact using the distal part of the upper lip; and (4) copulation takes place. These observations indicate that the sequence of stages of the mating behaviour of miniaturized animals is not necessarily always a simplified process. During the process, it seems that the male upper lip establishes physical contact stimuli with the female. Because the interstitial environment is cryptic and consists of a three‐dimensional space with reduced connectivity, direct physical contact is likely to be one of the most effective and successful courtship behaviours. © 2013 The Linnean Society of London, Biological Journal of the Linnean Society, 2013, 109, 791–801.

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Multifunctions of the upper lip and a ventral reflecting organ in a bioluminescent ostracod Vargula hilgendorfii (Müller, 1890)

Cited by 10 publications

References 5 publications

Three new species of podocopid ostracoda from hydrothermal vent fields at 9 50'N on the East Pacific Rise

Three new species of podocopid ostracoda from hydrothermal vent fields at 9 50'N on the East Pacific Rise

Complex sexual courtship displays by luminescent male marine ostracods

The mating behaviour of the seed shrimpParapolycope spiralis(Ostracoda: Cladocopina), with insight into the evolution of mating systems in cryptic interstitial habitats

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