Revisiting the bioacoustics of European spiny lobsters Palinurus elephas: comparison of antennal rasps in tanks and in situ

2019 ◽  
Vol 615 ◽  
pp. 143-157 ◽  
Author(s):  
Y Jézéquel ◽  
J Bonnel ◽  
J Coston-Guarini ◽  
L Chauvaud
Keyword(s):  
Spiny Lobsters ◽  
Palinurus Elephas

Culture of larval spiny lobsters: a review of work done in northern Japan

1997 ◽  
Vol 48 (8) ◽  
pp. 923 ◽  
Author(s):  
Jiro Kittaka
Keyword(s):  
Water Quality ◽  
Feeding Behaviour ◽  
The Past ◽  
Cool Temperate ◽  
Spiny Lobsters ◽  
Phyllosoma Larvae ◽  
Work Done ◽  
Plankton Feeders ◽  
Palinurus Elephas ◽  
Northern Japan

The method developed over the past decade in northern Japan to culture phyllosoma larvae of five species of principally cool-temperate spiny lobsters combines the features of upwelling water, co- cultured microalgae, and use of mussel gonad as food. The feeding behaviour of the phyllosomas shows that they are primarily predators with the pereiopods and secondarily plankton feeders with the maxillipeds and maxillae. Recent work has shown that contamination of culture water by microorganisms such as the fouling protozoans Vorticellaspp. can greatly reduce phyllosoma survival. The significance of co-cultures of microalgae in maintaining water quality is not yet fully understood. Newly hatched lavae of sailfin sandfish (Arctoscopus japonicus) is an excellent food for late-stage phyllosomas of Jasus verreauxi. About 5% of J. verreauxi phyllosomas metamorphosed into pueruli. Mortality during the puerulus stage was reduced by increasing the capacity of the culture tanks from 30 L to 100 L. A single Palinurus elephas phyllosoma raised in co-culture with diatoms and fed mussel gonad and A. japonicus larvae metamorphosed into a puerulus in 65 days after seven moults.

Propagation distances and sound properties of the antennal rasps produced by spiny lobsters (Palinurus elephas) in European coastal waters

2019 ◽  
Vol 146 (4) ◽  
pp. 2769-2769
Author(s):  
Youenn Jézéquel ◽  
Julien Bonnel ◽  
Jennifer Coston-Guarini ◽  
Laurent Chauvaud
Keyword(s):  
Coastal Waters ◽  
Spiny Lobsters ◽  
Palinurus Elephas

scholarly journals Isotopic fractionation in wild and captive European spiny lobsters (Palinurus elephas)

2012 ◽  
Vol 32 (3) ◽  
pp. 421-424 ◽  
Author(s):  
Salud Deudero ◽  
David Díaz ◽  
Ariadna Tor ◽  
Sandra Mallol ◽  
Raquel Goñi
Keyword(s):  
Isotopic Fractionation ◽  
Spiny Lobsters ◽  
Palinurus Elephas

Rendez vous with Saturn's rings

1984 ◽  
Vol 75 ◽  
pp. 743-759 ◽  
Author(s):  
Kerry T. Nock
Keyword(s):  
Solar Energy ◽  
Electric Propulsion ◽  
Power Source ◽  
Propulsion System ◽  
Low Thrust ◽  
Ring Plane ◽  
The Earth ◽  
Total Impulse ◽  
Saturn's Rings

ABSTRACTA mission to rendezvous with the rings of Saturn is studied with regard to science rationale and instrumentation and engineering feasibility and design. Future detailedin situexploration of the rings of Saturn will require spacecraft systems with enormous propulsive capability. NASA is currently studying the critical technologies for just such a system, called Nuclear Electric Propulsion (NEP). Electric propulsion is the only technology which can effectively provide the required total impulse for this demanding mission. Furthermore, the power source must be nuclear because the solar energy reaching Saturn is only 1% of that at the Earth. An important aspect of this mission is the ability of the low thrust propulsion system to continuously boost the spacecraft above the ring plane as it spirals in toward Saturn, thus enabling scientific measurements of ring particles from only a few kilometers.

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