We analyzed and compared 17 yr of monthly settlement indices postlarvae the Caribbean spiny lobster, Panulirus argus , at two locations on Mexican coast. Along this coast, shelf is very narrow local circulation driven by waves overtopping subtidal coral reef crests. Settlement occurred year‐round, but both showed annual rhythmicity, average seasonal maxima during autumn, similar interannual variation, reflecting influence mesoscale oceanographic processes settlement. Significant correlations...

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 470:55-68 (2012) - DOI: https://doi.org/10.3354/meps10030 Ecological traits of Caribbean sea anemones and symbiotic crustaceans P. Briones-Fourzán1,*, M. Pérez-Ortiz2, F. Negrete-Soto1, C. Barradas-Ortiz1, E. Lozano-Álvarez1 1Unidad Académica de Sistemas Arrecifales, Instituto Ciencias del Mar y Limnología,...

Abstract Habitat degradation can affect trophic ecology by differentially affecting specialist and generalist species, the number type of interspecific relationships. However, effects habitat on coral reefs have received limited attention. We compared structure food chain length between two shallow Caribbean similar in size close to each other: one dominated live other macroalgae (i.e., degraded). subjected samples basal carbon sources (particulate organic matter algae) same 48 species...

Coral reefs sustain abundant and diverse macrocrustaceans that perform multiple ecological roles, but coral are undergoing massive degradation may be driving changes in the species composition abundance of reef-associated macrocrustaceans. To provide insight into this issue, we used non-destructive visual census techniques to compare diversity conspicuous (i.e., those >1 cm visible without disturbance) between two shallow Caribbean similar size (∼1.5 km length) close each other, one...

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 221:221-232 (2001) - doi:10.3354/meps221221 Effects of artificial shelters (Casitas) on abundance and biomass juvenile spiny lobsters Panulirus argus in a habitat-limited tropical reef lagoon Patricia Briones-Fourzán*, Enrique Lozano-Álvarez Universidad Nacional Autónoma de México, Instituto Ciencias del Mar...

Macroscopic evidence, histological sections, transmission electron microscopy (TEM) evaluation, and PCR analyses of 25 apparently diseased juvenile spiny lobsters Panulirus argus from the reef lagoon Puerto Morelos, Mexico, showed presence Virus 1 (PaV1). Cowdry Type A intranuclear viral inclusions were observed in analyses, icosahedral particles by TEM, using specific primers for PaV1 amplified a fragment 499 bp. This is first report infecting P. outside Florida Keys, USA.

Abstract Social behaviour in Caribbean spiny lobsters (Panulirus argus) is mediated by conspecific chemical cues. These can be attracted to shelters emanating cues from conspecifics but tend avoid injured conspecifics, dead and with visible signs of a potentially lethal disease caused the pathogenic Panulirus argus virus 1 (PaV1). However, previous studies have not controlled for presence PaV1 (i.e. subclinical infection) grossly “healthy” lobsters, although do appear until several weeks...

Reproduction of the tropical spiny lobsters Panulirus inflatus and P. gracilis was studied in Guerrero, Mexican Pacific coast, from February 1979 to May 1980, samples with bottomset nets commercial divers' catches. Lobsters caught were tagged, some females recaptured up 4 times during study period. The smallest ovigerous measured 49.4 mm (P. gracilis) 54.7 inflatus) carapace length (CL). Reproductive both species found throughout year, but analysis percentage reproductive by size class...

Caribbean spiny lobsters Panulirus argus are socially gregarious, preferring shelters harboring conspecifics over empty shelters. In laboratory trials, however, healthy strongly avoided infected with the highly pathogenic Virus 1 (PaV1). Because PaV1 is transmitted by contact, this behavior may thwart its spread in wild lobsters. a field experiment conducted from 1998 to 2002 shelter-poor reef lagoon (Puerto Morelos, Mexico), densities of juvenile P. increased significantly on sites enhanced...

In spiny lobsters, conspecific scents ("aggregation cues") may mediate gregarious diurnal sheltering, but from injured conspecifics ("alarm odors") elicit avoidance behavior. laboratory experiments, individuals of two coexisting species, Panulirus guttatus (a reef-obligate) and P. argus temporary reef-dweller), significantly chose shelters emanating aggregation cues responded randomly to heterospecific cues. However, despite evidence that the species perceived each other's alarm odors a...

Fixed-site video cameras can be a powerful tool for studying marine animals in the sea without disturbing their behavior. Artificial light is required to use these at night or dark places such as inside animal dens. Red theoretically best choice because eyes of many are relatively insensitive above 600 nm wavelength, red penetrates water much further than infrared, and highly sensitive light. This study found that used behavior spiny lobster, Panulirus argus , significant effects. The...

The present study compares 13 physiological and immunological variables between a group of healthy Panulirus argus lobsters naturally infected with Virus 1 (PaV1). Viral infection was determined through histopathology PCR. Ten the differed significantly 2 groups. Using these variables, principal component analysis yielded separate clusters: one corresponding to other group. In particular, exhibited lower levels osmotic pressure, total hemocyte counts, plasmatic proteins, phenoloxidase (PO)...

In Bahía de la Ascensión, Mexico, 'casitas' (large artificial shelters) are extensively used to harvest Caribbean spiny lobsters Panulirus argus. After the discovery of a pathogenic virus, argus virus 1 (PaV1), in these lobsters, laboratory experiments revealed that PaV1 could be transmitted by contact and through water, avoided shelters harboring diseased conspecifics. To examine issues context casitas, which typically harbor multiple all sizes, we examined distribution aggregation patterns...

In Bahía de la Ascensión in Mexico, the Caribbean spiny lobster Panulirus argus fishery is based on extensive use of artificial shelters (casitas) that can harbor both juveniles and adults this highly gregarious species. There concern casitas might increase contact transmission virus 1 (PaV1). However, a previous study found no evidence for crowding within influencing prevalence clinical PaV1 disease, although differences were noted between different bay environments. To investigate more...

DAO Diseases of Aquatic Organisms Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 100:125-133 (2012) - DOI: https://doi.org/10.3354/dao02452 Contribution Special: 'Disease effects on lobster fisheries, ecology, and culture' Variability in clinical prevalence PaV1 Caribbean spiny lobsters occupying commercial casitas over a large bay Mexico Rebeca I. Candia-Zulbarán, Patricia Briones-Fourzán*,...

A study on the temporal patterns ofpueruli recruitment of spiny lobster Panulirus argus at two sites Mexican Caribbean coast has been conducted since 1987. Artificial collectors were used to monitor trends and magnitude pueruli recruitment. Magnitude in monthly annual indices notably different both sites. Moreover, a seasonal pattern was apparent only one Interannual variability high It is speculated whether these differences are result oflocal hydrographic features that may influence larval...

The giant isopod Bathynomus giganteus A. Milne Edwards was caught with wire traps in several locations at depths between 349 and 733 m off the Yucatan Peninsula. A total of 1,651 isopods, ranging from 4.4–36.5 cm body length, were obtained on 5 cruises. Size distribution, sex ratio, percentage mature males (with appendices masculinae) females functional oostegites) are given for each cruise. Length-weight length-width relationships 774 515 specimens, respectively. Reproductive aspects...

DAO Diseases of Aquatic Organisms Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 86:159-162 (2009) - DOI: https://doi.org/10.3354/dao02117 NOTE Detection Panulirus argus Virus 1 (PaV1) in exported frozen tails subadult-adult Caribbean spiny lobsters Juan Pablo Huchin-Mian1, Patricia Briones-Fourzán2, Raúl Simá-Álvarez1, Yanis Cruz-Quintana1, Antonio Pérez-Vega1, Enrique Lozano-Álvarez2, Cristina...