scholarly journals Aspects of Sound Communication in Some Caribbean Reef Fishes (Eupomacentrus spec., Pisces: Pomacentridae)

1981 ◽  
Vol 51 (1) ◽  
pp. 70-80 ◽  
Author(s):  
Helmut Albrecht
Keyword(s):  
Species Recognition ◽  
Temporal Structure ◽  
Reef Fishes ◽  
Pulse Interval ◽  
Caribbean Reef ◽  
Sound Communication

Four species of sympatric damselfishes (Eupomacentrus, Pomacentridae) from certain Florida reefs can be distinguished by certain sound characteristics used during courtship. Apparently the fish use these characteristics for species recognition. These characteristics involve the temporal structure of a sound, i.e. the length of the pulse interval, containing the necessary code for communication.

scholarly journals Comparing biodiversity databases: Greater Caribbean reef fishes as a case study

2020 ◽  
Vol 21 (6) ◽  
pp. 1195-1212 ◽  
Author(s):  
Iliana Chollett ◽  
D. Ross Robertson
Keyword(s):  
Reef Fishes ◽  
Caribbean Reef ◽  
Biodiversity Databases

Caribbean Reef Fishes

Copeia ◽  
1969 ◽  
Vol 1969 (1) ◽  
pp. 210
Author(s):  
Victor G. Springer ◽  
John E. Randall
Keyword(s):  
Reef Fishes ◽  
Caribbean Reef

scholarly journals Dependence of Caribbean reef fishes on mangroves and seagrass beds as nursery habitats: a comparison of fish faunas between bays with and without mangroves/seagrass beds

2001 ◽  
Vol 214 ◽  
pp. 225-235 ◽  
Author(s):  
I Nagelkerken ◽  
S Kleijnen ◽  
T Klop ◽  
RACJ van den Brand ◽  
EC de la Morinière ◽  
...  
Keyword(s):  
Reef Fishes ◽  
Seagrass Beds ◽  
Caribbean Reef ◽  
Nursery Habitats

scholarly journals Point Process Temporal Structure Characterizes Electrodermal Activity

2020 ◽  
Author(s):  
Sandya Subramanian ◽  
Riccardo Barbieri ◽  
Emery N. Brown
Keyword(s):  
Point Process ◽  
Electrodermal Activity ◽  
Temporal Structure ◽  
Physiological State ◽  
Electrical Conductance ◽  
Pulse Interval ◽  
Data Series ◽  
Inverse Gaussian ◽  
Probability Models ◽  
Gaussian Models

AbstractElectrodermal activity (EDA) is a read-out of the body’s sympathetic nervous system measured as sweat-induced changes in the electrical conductance properties of the skin. There is growing interest in using EDA to track physiological conditions such as stress levels, sleep quality and emotional states. Standardized EDA data analysis methods are readily available. However, none considers two established physiological features of EDA: 1) sympathetically mediated pulsatile changes in skin sweat measured as EDA resemble an integrate-and-fire process; 2) inter-pulse interval times vary depending upon the local physiological state of the skin. Based on the anatomy and physiology that underlie feature 1, we postulate that inverse Gaussian probability models would accurately describe EDA inter-pulse intervals. Given feature 2, we postulate that under fluctuating local physiological states, the inter-pulse intervals would follow mixtures of inverse Gaussian models, that can be represented as lognormal models if the conditions favor longer intervals (heavy tails) or by gamma models if the conditions favor shorter intervals (light tails). To assess the validity of these probability models we recorded and analyzed EDA measurements in 11 healthy volunteers during 1 to 2 hours of quiet wakefulness. We assess the tail behavior of the probability models by computing their settling rates. All data series were accurately described by one or more of the models: two by inverse Gaussian models; five by lognormal models and three by gamma models. These probability models suggest a highly succinct point process framework for real-time tracking of sympathetically-mediated changes in physiological state.

scholarly journals Stratigraphic distributions of genera and species of Neogene to Recent Caribbean reef corals

1994 ◽  
Vol 68 (5) ◽  
pp. 951-977 ◽  
Author(s):  
Ann F. Budd ◽  
Thomas A. Stemann ◽  
Kenneth G. Johnson
Keyword(s):  
Late Miocene ◽  
Species Recognition ◽  
Reef Coral ◽  
Early Pleistocene ◽  
Caribbean Region ◽  
Acropora Palmata ◽  
Free Living ◽  
Reef Corals ◽  
Caribbean Reef ◽  
The Caribbean

To document evolutionary patterns in late Cenozoic Caribbean reef corals, we compiled composite stratigraphic ranges of 49 genera and 175 species using Neogene occurrences in the Cibao Valley sequence of the northern Dominican Republic and faunal lists for 24 Miocene to Recent sites across the Caribbean region. This new compilation benefits in particular from increased sampling at late Miocene to early Pleistocene sites and from increased resolution and greater taxonomic consistency provided by the use of morphometric procedures in species recognition.Preliminary examination and quantitative analysis of origination and extinction patterns suggest that a major episode of turnover took place between 4 and 1 Ma during Plio-Pleistocene time. During the episode, extinctions were approximately simultaneous in species of all reef-building families, except the Mussidae. Most strongly affected were the Pocilloporidae (Stylophora and Pocillopora), Agariciidae (Pavona and Gardineroseris), and free-living members of the Faviidae and Meandrinidae. At the genus level, mono- and paucispecific as well as more speciose genera became regionally extinct. Many of the extinct genera live today in the Indo-Pacific region, and some are important components of modern eastern Pacific reefs. Global extinctions were concentrated in free-living genera. During the turnover episode, no new genera or higher taxa arose. Instead, new species originated within the surviving Caribbean genera at approximately the same time as the extinctions, including many dominant modern Caribbean reef-building corals (e.g., Acropora palmata and the Montastraea annularis complex).Excluding this episode, the taxonomic composition of the Caribbean reef-coral fauna remained relatively unchanged during the Neogene. Minor exceptions include: 1) high originations in the Agariciidae and free-living corals during late Miocene time; and 2) regional or global extinctions of several important Oligocene Caribbean reef builders during early to middle Miocene time.

Twilight Activities and Temporal Structure in a Freshwater Fish Community

1981 ◽  
Vol 38 (11) ◽  
pp. 1405-1420 ◽  
Author(s):  
Gene S. Helfman
Keyword(s):  
Coral Reef ◽  
Temporal Structure ◽  
Activity Patterns ◽  
Water Clarity ◽  
Reef Fishes ◽  
Physical Structure ◽  
Coral Reef Fishes ◽  
Community Diversity ◽  
Older Individuals ◽  
Temperate Lake

Underwater observations of temperate lake fishes suggest that their twilight activities are basically similar to those described by other researchers for coral reef fishes. At dusk, diurnally active lake fishes progressively increased swimming, ceased feeding, disbanded groups, slowed swimming, and finally stopped. At dawn, this sequence was reversed, although at lower light levels than corresponding dusk behaviors. Aggressive, cleaning, and comfort behavior increased at dusk, and fishes changed from group to individual behaviors. By day, nocturnally active fishes rested singly or in aggregations. Predators were apparently more active during twilight. Older individuals of several species were active later in the evening or were increasingly nocturnal in their activities. Characteristic diel and twilight patterns broke down during the breeding season. Temperate lake species differed from coral reef fishes in that they were less attracted to physical structure at night, twilight migrations were less common, and no apparent "interim period" occurred between cessation of activity by diurnal fishes and initiation of activity by nocturnal ones. In general, twilight changeover in the temperate system was more variable and prolonged. These differences may be due to lake fishes having evolved under variable conditions of community diversity, water clarity, predator abundance, and twilight length. Such factors are more constant or predictable in coral reef communities, where twilight activity patterns appear more precise.Key words: changeover, diel, lake, latitude, light, New York, ontogeny, predation, temperate/tropic comparison

Coevolution: Heterotypic Schooling in Caribbean Reef Fishes

1973 ◽  
Vol 107 (953) ◽  
pp. 157-160 ◽  
Author(s):  
Paul R. Ehrlich ◽  
Anne H. Ehrlich
Keyword(s):  
Reef Fishes ◽  
Caribbean Reef
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