scholarly journals Influence of light, food and predator presence on the activity pattern of the European spiny lobster Palinurus elephas: An investigation using tri-axial accelerometers

2020 ◽  
Vol 113 ◽  
pp. 106174
Author(s):  
Arturo Zenone ◽  
Javier E. Ciancio ◽  
Fabio Badalamenti ◽  
Gaspare Buffa ◽  
Giovanni D'Anna ◽  
...  
Keyword(s):  
Activity Pattern ◽  
Spiny Lobster ◽  
Palinurus Elephas

Homing and home range of the European spiny lobster, Palinurus elephas (Decapoda, Palinuridae) acoustically tracked

Crustaceana ◽  
2019 ◽  
Vol 92 (4) ◽  
pp. 463-476
Author(s):  
Vincenzo M. Giacalone ◽  
Arturo Zenone ◽  
Fabio Badalamenti ◽  
Javier Ciancio ◽  
Gaspare Buffa ◽  
...  
Keyword(s):  
Home Range ◽  
Protected Area ◽  
Marine Protected Area ◽  
High Spatial Resolution ◽  
Spiny Lobster ◽  
Ultrasonic Telemetry ◽  
Central Mediterranean ◽  
In The Wild ◽  
First Time ◽  
Palinurus Elephas

Abstract A specific study has been carried out for the first time to investigate the homing capability and daily home range of the spiny lobster Palinurus elephas by means of ultrasonic telemetry. Nine lobsters collected in the Capo Gallo — Isola delle Femmine marine protected area (northwestern Sicily, central Mediterranean) were tagged with miniaturized transmitters and released at a single site inside the protected area. The lobsters were monitored with the purpose of calculating their horizontal and vertical positions, analysing their movement patterns to assess their homing capability, and calculating their daily home range. Five lobsters moved back close to the capture sites within the first 20 hours after release (‘homed’). The remaining four lobsters ‘relocated’ to a different refuge. Homed lobsters had a larger home range than relocated lobsters. This study provides the first description of a homing pattern with high spatial resolution in the wild European spiny lobster as inferred by ultrasonic telemetry.

scholarly journals Tyrosinases from crustaceans form hexamers

2003 ◽  
Vol 371 (2) ◽  
pp. 515-523 ◽  
Author(s):  
Elmar JAENICKE ◽  
Heinz DECKER
Keyword(s):  
Oxygen Carrier ◽  
Spiny Lobster ◽  
Physicochemical Characterization ◽  
Primary Immune Response ◽  
Freshwater Crayfish ◽  
Astacus Leptodactylus ◽  
Purification Protocol ◽  
Palinurus Elephas

Tyrosinases, which are widely distributed among animals, plants and fungi, are involved in many biologically essential functions, including pigmentation, sclerotization, primary immune response and host defence. In the present study, we present a structural and physicochemical characterization of two new tyrosinases from the crustaceans Palinurus elephas (European spiny lobster) and Astacus leptodactylus (freshwater crayfish). In vivo, the purified crustacean tyrosinases occur as hexamers composed of one subunit type with a molecular mass of approx. 71kDa. The tyrosinase hexamers appear to be similar to the haemocyanins, based on electron microscopy. Thus a careful purification protocol was developed to discriminate clearly between tyrosinases and the closely related haemocyanins. The physicochemical properties of haemocyanins and tyrosinases are different with respect to electronegativity and hydrophobicity. The hexameric nature of arthropod tyrosinases suggests that these proteins were the ideal predecessors from which to develop the oxygen-carrier protein haemocyanin, with its allosteric and co-operative properties, later on.

scholarly journals Aspects of the Biology and Fishery of the European Spiny Lobster (Palinurus Elephas) from the Southwest Coast of Portugal

2006 ◽  
Vol 26 (4) ◽  
pp. 601-609 ◽  
Author(s):  
Amélia Cristina Galhardo ◽  
Margarida Castro ◽  
Paula Serafim
Keyword(s):  
Spiny Lobster ◽  
Southwest Coast ◽  
Palinurus Elephas

Spillover effects of a Mediterranean marine protected area on the European spiny lobster Palinurus elephas (Fabricius, 1787) resource

2011 ◽  
Vol 21 (6) ◽  
pp. 564-572 ◽  
Author(s):  
Maria Cristina Follesa ◽  
Rita Cannas ◽  
Alessandro Cau ◽  
Danila Cuccu ◽  
Alice Gastoni ◽  
...  
Keyword(s):  
Protected Area ◽  
Marine Protected Area ◽  
Spiny Lobster ◽  
Spillover Effects ◽  
Palinurus Elephas

scholarly journals Body growth and mortality of the spiny lobster Palinurus elephas within and outside a small marine protected area

2010 ◽  
Vol 106 (3) ◽  
pp. 543-549 ◽  
Author(s):  
Daniele Bevacqua ◽  
Paco Melià ◽  
Maria C. Follesa ◽  
Giulio A. De Leo ◽  
Marino Gatto ◽  
...  
Keyword(s):  
Protected Area ◽  
Marine Protected Area ◽  
Spiny Lobster ◽  
Body Growth ◽  
Palinurus Elephas
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