Facultad de Artes y Ciencias: Recent submissions
Now showing items 1-20 of 58
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Variations in Morphology and Coloration in the Black Hamlet, Hypoplectrus nigricans(Teleostei: Serranidae)
(Caribbean Journal of Science, Vol. 40, No. 1, 150-154, 2004, 2004-04)Black hamlet (Hypoplectrus nigricans) was observed to vary in coloration and morphology in Puerto Rico, Mexico and Belize. H. nigricans from Puerto Rico exhibited a larger, grayish body (pectoral fins transparent), with ... -
Sexual dimorphism in the timing of flowering in two dioecious trees in a subtropical wet forest, Puerto Rico
(Caribbean Journal of Science, Vol. 46, No. 1, 88-95, 2010, 2010)In dioecious plants, sexual selection can promote the evolution of differences in the flowering display of males and females. Theory indicates that male reproductive success is principally limited by the number of mates, ... -
Observations on morphology and the taxonomic affiliation of Coelothrix irregularis (Harv.) Børgesen (Rhodymeniales, Rhodophyta)
(Caribbean Journal of Science, Vol. 46, No. 1, 71-82, 2010, 2010)Coelothrix irregularis (Harv.) Børgesen, until recently a member of the Rhodymeniaceae, has had several familial assignments within the Rhodymeniales. While suggested by some that the genus belonged in the Champiaceae on ... -
New Records of Marine Fishes from the Puerto Rican Plateau
(Carribean Journal of Science, Vol. 40, No. 1, 70-87, 2004, 2004-04)Forty-six new records of marine fishes to the Puerto Rican Plateau are reported here with notes on their habitat and life history. The lack of previous reports of many of these species is due to three main reasons: poorly ... -
Microbiological Surface-water Quality of the Río Grande de Añasco Watershed, Puerto Rico
(Caribbean Journal of Science, Vol. 42, No. 2, 151-163, 2006, 2006-12)Sediments and the persistence of fecal and streptococcal indicator bacteria in surface waters have been identified as the main water-quality impairments in Puerto Rico. Identification of temporal variations in bacterial ... -
Coral Reef Ecosystem Studies: Integrating Science and Management in the Caribbean
(Caribbean Journal of Science, Vol. 45, No. 2-3, 134-137, 2009, 2009) -
Coupling of humans, habitats and other species: a study of the fishers’ traditional ecological knowledge (TEK) in La Parguera
(Caribbean Journal of Science, Vol. 45, No. 2-3, 363-371, 2009, 2009)For generations, fishermen have constructed, shared, and refined knowledge (Traditional Ecological Knowledge) from their perceptions of habitats and species. Following our earlier work in La Parguera, Southwest Puerto Rico, ... -
Spatial and temporal variability in juvenile coral densities, survivorship and recruitment in La Parguera, southwestern Puerto Rico
(Caribbean Journal of Science, Vol. 45, No. 2-3, 269-281, 2009, 2009)Juvenile coral survivorship (the proportion of juvenile colonies surviving from t 1 to t 2 ) was assessed by counting, photographing and mapping all juveniles found in 2003 within random permanent 0.25m 2 quadrats at four ... -
Effects of a marine fishery reserve and habitat characteristics in the abundance and demography of the red hind grouper, Epinephelus guttatus
(Caribbean Journal of Science, Vol. 45, No. 2-3, 348-362, 2009, 2009)No-take marine fishery reserves have been established worldwide to reduce the impact of overfishing in marine ecosystems and to restore depleted fishery stocks. In this study we used capture-markrecapture methodology to ... -
Movement of fishes (Grunts: Haemulidae) across the coral reef seascape: A review of scales, patterns and processes
(Caribbean Journal of Science, Vol. 45, No. 2-3, 304-316, 2009, 2009)Reef fish movements over short and long time frames have important consequences for identifying essential fish habitat, quantifying ecological flows across the seascape and designing marine reserves. We use grunts (Haemulidae) ... -
Observations on morphology and the taxonomic affiliation of Coelothrix irregularis (Harv.) Børgesen (Rhodymeniales, Rhodophyta)
(Caribbean Journal of Science, Vol. 46, No. 1, 71-82, 2010, 2010)Coelothrix irregularis (Harv.) Børgesen, until recently a member of the Rhodymeniaceae, has had several familial assignments within the Rhodymeniales. While suggested by some that the genus belonged in the Champiaceae on ... -
Nocturnal fish movement and trophic flow across habitat boundaries in a coral reef ecosystem (SW Puerto Rico)
(Caribbean Journal of Science, Vol. 45, No. 2-3, 282-303, 2009, 2009)Few studies have quantified the extent of nocturnal cross-habitat movements for fish, or the influence of habitat adjacencies on nutrient flows and trophodynamics. To investigate the patterns of nocturnal cross-boundary ... -
Distribution and Relative Abundance of Humpback Whales off Western Puerto Rico during 1995-1997
(Caribbean Journal of Science, Vol. 41, No. 1, 101-107, 2005, 2005-04)Observations of humpback whales (position, number and presence of calf) were obtained from a commercial whale-watching vessel during January to March 1995 to 1997 along the northwestern coast of Puerto Rico. These data ... -
The Distribution of Herbivorous Coral Reef Fishes within Fore-reef Habitats: the Role of Depth, Light and Rugosity
(Caribbean Journal of Science, Vol. 45, No. 2-3, 247-253, 2009, 2009)Examining the relationship between habitat characteristics and utilization patterns by herbivorous fishes on coral reefs will add to our understanding of the factors that influence the abundance and distribution of this ... -
Nutrient distribution across the insular shelf of La Parguera, Puerto Rico: assessment by algal tissue nitrogen
(Caribbean Journal of Science, Vol. 45, No. 2-3, 181-190, 2009, 2009)A survey was conducted to investigate possible presence of an inshore to shelf edge gradient in % nitrogen (%N) and stable nitrogen isotope ratio (δ 15 N; ‰ vs. air) in tissues of the rhodophyte Acanthophora spicifera and ... -
Sediment transport and the distribution of shallow-water gorgonians
(Caribbean Journal of Science, Vol. 45, No. 2-3, 254-259, 2009, 2009)The objective of this study was to provide evidence supporting the contention that sediment transport (bedload) is a major environmental factor controlling the distribution of shallow-water gorgonian species. Gorgonians ... -
Dynamics of shelf edge coral reef-associated macroalgae at La Parguera, Puerto Rico
(2009)Percentage cover of coral reef associated algae increased significantly from 2003 to 2007 at two shelf edge sites in southwest Puerto Rico (42.8 % to 75.3% at Weinberg Reef and 67.4% to 81.8% at El Hoyo). While the increase ... -
Variability of aspergillosis in Gorgonia ventalina in La Parguera, Puerto Rico
(Caribbean Journal of Science, Vol. 45, No. 2-3, 215-220, 2009, 2009)Temporal and spatial variability of prevalence of the fungal disease aspergillosis (ASP) affecting Gorgonia ventalina colonies was assessed at several reef sites in La Parguera, southwest Puerto Rico. During 2005 and 2006, ... -
Temporal variability and impact of coral diseases and bleaching in La Parguera, Puerto Rico from 2003-2007
(2009)Most coral reefs in the wider Caribbean have been showing alarming signs of decline in recent years. Coral diseases and bleaching were monitored seasonally from 2003 to 2007 using the modified CARICOMP protocol with a ... -
Spatial and temporal patterns in reef sediment accumulation and composition, southwestern insular shelf of Puerto Rico
(Caribbean Journal of Science, Vol. 45, No. 2-3, 138-150, 2009, 2009)Effects of terrigenous sedimentation are considered a serious threat to Puerto Rico’s coral reefs. This study assesses: 1) the composition of sediments accumulating at reef sites on the southwestern shelf of Puerto Rico; ...