Sperm economy and limitation in spiny lobsters

1999 ◽  
Vol 46 (1) ◽  
pp. 14-24 ◽  
Author(s):  
A. B. MacDiarmid ◽  
Mark J. Butler IV
Keyword(s):  
Spiny Lobsters ◽  
Sperm Economy

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.

GAFFKEMIA IN CALIFORNIA SPINY LOBSTERS

2009 ◽  
Vol 5 (1-4) ◽  
pp. 139-143
Author(s):  
J. F. Steenbergen ◽  
H. C. Schapiro
Keyword(s):  
Spiny Lobsters

Factors Regulating Microhabitat Use by Young Juvenile Spiny Lobsters, Panulirus Argus: Food and Shelter

1985 ◽  
Vol 5 (4) ◽  
pp. 650-657 ◽  
Author(s):  
James Marx ◽  
William Herrnkind
Keyword(s):  
Panulirus Argus ◽  
Microhabitat Use ◽  
Spiny Lobsters

scholarly journals Casitas: a location-dependent ecological trap for juvenile Caribbean spiny lobsters, Panulirus argus

2015 ◽  
Vol 72 (suppl_1) ◽  
pp. i177-i184 ◽  
Author(s):  
Benjamin C. Gutzler ◽  
Mark J. Butler ◽  
Donald C. Behringer
Keyword(s):  
Florida Keys ◽  
Nutritional Condition ◽  
Ecological Trap ◽  
Habitat Modification ◽  
Panulirus Argus ◽  
Risk Of Predation ◽  
Spiny Lobsters ◽  
Nursery Habitats ◽  
Animal Size ◽  
Fisheries Enhancement

Abstract Casitas are artificial shelters used by fishers to aggregate Caribbean spiny lobsters (Panulirus argus) for ease of capture. However, casitas may function as an ecological trap for juvenile lobsters if they are attracted to casitas and their growth or mortality is poorer compared with natural shelters. We hypothesized that juvenile lobsters may be at particular risk if attracted to casitas because they are less able than larger individuals to defend themselves, and do not forage far from shelter. We compared the nutritional condition, relative mortality, and activity of lobsters of various sizes in casitas and natural shelters in adult and juvenile lobster-dominated habitats in the Florida Keys (United States). We found that the ecological effects of casitas are complex and location-dependent. Lobsters collected from casitas and natural shelters did not differ in nutritional condition. However, juvenile lobsters in casitas experienced higher rates of mortality than did individuals in natural shelters; the mortality of large lobsters did not differ between casitas and natural shelters. Thus, casitas only function as ecological traps when deployed in nursery habitats where juvenile lobsters are lured by conspecifics to casitas where their risk of predation is higher. These results highlight the importance of accounting for animal size and location-dependent effects when considering the consequences of habitat modification for fisheries enhancement.

Den sharing by juvenile Caribbean spiny lobsters (Panulirus argus) in nursery habitat: cooperation or coincidence?

1997 ◽  
Vol 48 (8) ◽  
pp. 751 ◽  
Author(s):  
Michael J. Childress ◽  
William F. Herrnkind
Keyword(s):  
Life History Traits ◽  
Dilution Effect ◽  
Nursery Habitat ◽  
Panulirus Argus ◽  
Predator Density ◽  
Conspecific Density ◽  
Spiny Lobsters ◽  
Effect Hypothesis ◽  
Highly Correlated ◽  
Sharing Patterns

Spiny lobsters (Palinuridae) commonly share crevice shelters with conspecifics, a behaviour usually hypothesized to benefit mutually cooperative defenders through reduced predation risk. The group-defence hypothesis predicts a suite of distinct corollary life history traits and ecological correlates including more frequent co-denning than solitary denning, especially where predators or den competitors are numerous and when the lobsters are small, moulting or otherwise vulnerable. Two alternative co-denning hypotheses, the dilution effect (a type of selfish herding) and the guide effect (attraction to a denned conspecific), have different and distinctive sets of predictions. To test among these hypotheses, the den-sharing patterns of newly emerged postalgal juveniles of Panulirus argus and associated ecological conditions in the Florida Bay (USA) nursery habitat were examined. Only half of the juveniles shared dens, and rarely was den sharing in an area greater than that expected by chance. Den-sharing frequency was most highly correlated with conspecific density and scarcity of local dens. The lack of correlation between den sharing and lobster size, moult condition, shelter type and predator density failed to support either the group-defence or the dilution-effect hypothesis. Instead, the data better support the guide-effect hypothesis.

scholarly journals Chemical Signal-to-Noise Detection by Spiny Lobsters

1991 ◽  
Vol 181 (3) ◽  
pp. 419-426 ◽  
Author(s):  
R. K. Zimmer-Faust
Keyword(s):  
Chemical Signal ◽  
Noise Detection ◽  
Signal To Noise ◽  
Spiny Lobsters

Diseases of spiny lobsters: A review

2011 ◽  
Vol 106 (1) ◽  
pp. 79-91 ◽  
Author(s):  
J.D. Shields
Keyword(s):  
Spiny Lobsters

Enhancement of juvenile Caribbean spiny lobsters: an evaluation of changes in multiple response variables with the addition of large artificial shelters

Oecologia ◽  
2006 ◽  
Vol 151 (3) ◽  
pp. 401-416 ◽  
Author(s):  
Patricia Briones-Fourzán ◽  
Enrique Lozano-Álvarez ◽  
Fernando Negrete-Soto ◽  
Cecilia Barradas-Ortiz
Keyword(s):  
Multiple Response ◽  
Spiny Lobsters ◽  
Response Variables
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