Relationship of the luminous bacterial symbiont of the Caribbean flashlight fish, Kryptophanaron alfredi (family Anomalopidae) to other luminous bacteria based on bacterial luciferase (luxA) genes

1990 ◽  
Vol 154 (5) ◽  
pp. 496-503 ◽  
Author(s):  
Margo G. Haygood
Keyword(s):  
Bacterial Symbiont ◽  
Bacterial Luciferase ◽  
Luminous Bacteria ◽  
The Caribbean ◽  
Relationship Of

scholarly journals Museum Genomics Illuminate the High Specificity of a Bioluminescent Symbiosis for a Genus of Reef Fish

2021 ◽  
Vol 9 ◽  
Author(s):  
Alison L. Gould ◽  
Allison Fritts-Penniman ◽  
Ana Gaisiner
Keyword(s):  
High Specificity ◽  
Bacterial Symbiont ◽  
Light Organ ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
New Approach ◽  
Host Genus ◽  
Symbiotic Relationships ◽  
Luminous Bacteria ◽  
Formalin Fixed

Symbiotic relationships between bioluminescent bacteria and fishes have evolved multiple times across hundreds of fish taxa, but relatively little is known about the specificity of these associations and how stable they are over host generations. This study describes the degree of specificity of a bioluminescent symbiosis between cardinalfishes in the genus Siphamia and luminous bacteria in the Vibrio family. Primarily using museum specimens, we investigated the codivergence of host and symbiont and test for patterns of divergence that correlate with both biogeography and time. Contrary to expectations, we determined that the light organ symbionts of all 14 Siphamia species examined belong to one genetic clade of Photobacterium mandapamensis (Clade II), indicating that the association is highly specific and conserved throughout the host genus. Thus, we did not find evidence of codivergence among hosts and symbionts. We did observe that symbionts hosted by individuals sampled from colder water regions were more divergent, containing more than three times as many single nucleotide polymorphisms than the rest of the symbionts examined. Overall, our findings indicate that the symbiosis between Siphamia fishes and P. mandapamensis Clade II has been highly conserved across host taxa and over a broad geographic range despite the facultative nature of the bacterial symbiont. We also present a new approach to simultaneously recover genetic information from a bacterial symbiont and its vertebrate host from formalin-fixed specimens, enhancing the utility of museum collections.

Quantum Relationship of the Light-emitting Process of Luminous Bacteria

Nature ◽  
1936 ◽  
Vol 138 (3484) ◽  
pp. 245-245 ◽  
Author(s):  
K. L. VAN SCHOUWENBURG ◽  
JOHANNA G. EYMERS
Keyword(s):  
Light Emitting ◽  
Luminous Bacteria ◽  
Relationship Of

scholarly journals ALGAS MARINAS BENTICAS INDICADORAS DE UN AREA AFECTADA POR AGUAS DE SURGENCIA FRENTE A LA COSTA CARIBE DE COLOMBIA

2016 ◽  
Vol 9 ◽  
Author(s):  
Germán Bula Meyer
Keyword(s):  
Coastal Upwelling ◽  
Climatic Factors ◽  
Biological Indicators ◽  
Sea Bottom ◽  
Chemical Factors ◽  
The Caribbean ◽  
Relationship Of ◽  
Physical And Chemical ◽  
Counter Current ◽  
The Relationship

The present paper is the result of a study undertaken to establish the relationship of certain marine envlromental factors and the benthic flora of the Caribbean littoral of Colombia. For the purpose of this study this coastal bands has been divided in two Areas. Area 1 is found between Cabo Tiburón and the mouth of the Río Magdalena, and is characterized by warm waters with very small fluctuations of the surface temperature. Area 2 ranges from the mouth of the Río Magdalena to Castilletes, and its waters are affected by a coastal upwelling with a locality of maximum intensity at the West of Península de Guajira. As a result of the presence of this upwelling there are considerable variations in the physical and chemical factors acting upon the benthic flora, there established for very short periods or all year round, as well as determining the absence of some genera and species typical of these latitudes. The parameters used for detecting this oceanographic phenomenon are given by Díaz-Piferrer (1967 a) for Venezuela. To the biological indicators cited by this author for Venezuela, the present writer adds the brown alga Ectocarpus confervoides (Roth) Le Jolis, which was found in the area of upwelling in Colombia. A comparative study of these indicators plants with those of Venezuela is given in the present paper. Similarities and differences were found to be caused by the over-run of the warm counter current on the Colombian upwelling; by the different forces of the Caribbean Current and Guayana Current, all of which lead to the related oceanographic phenomenon; tfie climatic factors; the topography of the sea bottom and the influence of the continental waters over these upwelling.

Persistence and Change: Marriage and Family Among the Overseas Indians in the Caribbean

2021 ◽  
pp. 186-192
Author(s):  
Kiran Jha
Keyword(s):  
Interpersonal Relations ◽  
Resistance To Change ◽  
Indian Culture ◽  
Marriage And Family ◽  
Mutual Cooperation ◽  
Foreign Land ◽  
Kinship Relations ◽  
The Caribbean ◽  
Relationship Of ◽  
Selection Of

Indians came to the Caribbean under the system of indenture to augment the labour shortage in the plantations around the middle of the nineteenth century. Rather than returning after the contractual period, many Indians stayed on, accepting the Caribbean as their new found home. Thus began a symbiotic relationship of the Indian culture with the Caribbean society in the new habitat. This paper outlines the lives of the overseas Indians with reference to aspects of marriage, including the selection of spouses, different kinds of marriage and its dissolution. The paper also discusses the institution of family and its internal mechanisms in terms of patterns of authority, inheritance, conflicts, the position of women and the system of kinship. The overseas Indians moved from tradition to modernity, and from custom to legality. There was also resistance to change and deviations as some values struggled to be reinforced, while others were discarded. On the whole, kinship relations remained of vital importance for the sake of mutual cooperation and social intercourse in a foreign land. Interpersonal relations helped to regulate and standardize behaviour. In providing these accounts, this paper seeks to portray the persistence and change of traditional Indian social intuitions and customs among the overseas community in the Caribbean.

Persistence and Change: Marriage and Family Among the Overseas Indians in the Caribbean

2021 ◽  
pp. 190-196
Author(s):  
Kiran Jha
Keyword(s):  
Interpersonal Relations ◽  
Resistance To Change ◽  
Indian Culture ◽  
Marriage And Family ◽  
Mutual Cooperation ◽  
Foreign Land ◽  
Kinship Relations ◽  
The Caribbean ◽  
Relationship Of ◽  
Selection Of

Indians came to the Caribbean under the system of indenture to augment the labour shortage in the plantations around the middle of the nineteenth century. Rather than returning after the contractual period, many Indians stayed on, accepting the Caribbean as their new found home. Thus began a symbiotic relationship of the Indian culture with the Caribbean society in the new habitat. This paper outlines the lives of the overseas Indians with reference to aspects of marriage, including the selection of spouses, different kinds of marriage and its dissolution. The paper also discusses the institution of family and its internal mechanisms in terms of patterns of authority, inheritance, conflicts, the position of women and the system of kinship. The overseas Indians moved from tradition to modernity, and from custom to legality. There was also resistance to change and deviations as some values struggled to be reinforced, while others were discarded. On the whole, kinship relations remained of vital importance for the sake of mutual cooperation and social intercourse in a foreign land. Interpersonal relations helped to regulate and standardize behaviour. In providing these accounts, this paper seeks to portray the persistence and change of traditional Indian social intuitions and customs among the overseas community in the Caribbean.

scholarly journals Modeling the underlying environmental factors of milky sea case and luminous bacteria presence in Java Southern Sea in 2019

2021 ◽  
Author(s):  
Andri A Wibowo
Keyword(s):  
Remote Sensing ◽  
Environmental Factors ◽  
Average Rate ◽  
Information Criterion ◽  
Limiting Factors ◽  
Bacterial Bioluminescence ◽  
Luminous Bacteria ◽  
Relationship Of ◽  
The Relationship ◽  
Temperature Factors

The milky sea is one of the unique natural phenomena caused by the presence of luminous Vibrio bacteria in marine ecosystems. Recently a milky sea has been reported frequently included in the Java Southern Sea. Simultaneously, numerous remote sensing based approaches have been developed to detect the presence of luminous bacteria and the milky sea. Despite this state of the art, the information of detrimental factors of the marine bioluminescence was still limited. Then this research aims to model the underlying environmental factors causing the milky sea and luminous bacteria presence in the Java Southern Sea in 2019. The remote sensing assessment for the period of July 29-August 6, 2019 shows that the magnitude of bioluminescence measured in radiance was having a maximum value of 255 nanoW/cm2/sr and an average of 107 nanoW/cm2/sr/day (95%CI: 71.9 to 142 nanoW/cm2/sr/day). The milky sea size increased and reached its peak with a size of 44,124 km2 and then declined. The average milky sea size was 37,942 km2 (95% CI: 33,400 to 42,500 km2) and increased with average rate of 16.01% (95%CI: 5.41% to 26.66%). While Akaike Information Criterion (AIC) indicates that the best model to infer the relationship of bacterial bioluminescence with its environmental factors contained Chlorophyll a followed by sea surface temperature factors with AICc values of 101.16 (AICweight: 0.50) and 101.95 (AICweight: 0.34). This indicates that low temperature and high plankton cells is the limiting factors of the bacterial bioluminescence.

Resurrection of the octocorallian genus Antillogorgia for Caribbean species previously assigned to Pseudopterogorgia, and a taxonomic assessment of the relationship of these genera with Leptogorgia (Cnidaria, Anthozoa, Gorgoniidae)

Zootaxa ◽  
2012 ◽  
Vol 3505 (1) ◽  
pp. 39 ◽  
Author(s):  
GARY C. WILLIAMS ◽  
JEI-YING CHEN
Keyword(s):  
Coral Reefs ◽  
Junior Synonym ◽  
Molecular Evidence ◽  
The Bahamas ◽  
Western Atlantic ◽  
Taxonomic Relationships ◽  
The Caribbean ◽  
Relationship Of ◽  
The Relationship

The genus Antillogorgia Bayer, 1951 is resurrected for species of zooxanthellate, pinnately-branched gorgonians with sc-lerite complements that include well-developed scaphoids, and inhabit coral reefs of the western Atlantic, particularlyfrom the Bahamas through the Caribbean. These species were previously assigned to the Indo-Pacific genus Pseu-dopterogorgia Kükenthal, 1919 by Bayer, 1958 (thus making Antillogorgia a junior synonym of Pseudopterogorgia), butare shown here to warrant generic separation. Both morphological as well as molecular evidence is provided to justify distinguishing the two genera. Taxonomic relationships to a third gorgoniid genus, Leptogorgia, are also discussed.

Protecting the Caribbean from itself: UNDCP and the ganja debate

2002 ◽  
Vol 76 (1-2) ◽  
pp. 95-96
Author(s):  
Axel Klein
Keyword(s):  
Social Sciences ◽  
Drug Policy ◽  
Control Programme ◽  
Caribbean Region ◽  
Local Experience ◽  
The Social ◽  
The Caribbean ◽  
Relationship Of ◽  
New Evidence ◽  
The Relationship

[First paragraph]Drug policy in the Caribbean region provides a testing ground for one of the key themes in the social sciences over recent years, the relationship of knowledge and power. Acting as intermediary between northern donors and the microstates of the region, the organization - United Nations International Control Programme (UNDCP) - applies the models framed by northern expertise even when local experience suggests they are inappropriate. Instead of adapting, in the light of new evidence, the organization mobilizes its resources on stifling dissent.

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