scholarly journals Growing Evidence about the Relationship between Vessel Dissection and Scuba Diving

2013 ◽  
Vol 5 (3) ◽  
pp. 155-161 ◽  
Author(s):  
Simona Brajkovic ◽  
Giulietta Riboldi ◽  
Alessandra Govoni ◽  
Stefania Corti ◽  
Nereo Bresolin ◽  
...  
Keyword(s):  
Scuba Diving ◽  
Vessel Dissection ◽  
The Relationship

scholarly journals User Satisfaction and Crowding at Florida Keys National Marine Sanctuary

Water ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 3423
Author(s):  
Melissa Hurtado ◽  
Robert C. Burns ◽  
Ross G. Andrew ◽  
Danielle Schwarzmann ◽  
Jasmine Cardozo Moreira
Keyword(s):  
Marine Protected Areas ◽  
User Satisfaction ◽  
Scuba Diving ◽  
Florida Keys ◽  
Effective Management ◽  
Coastal Environments ◽  
The Relationship ◽  
Recreational Use ◽  
Natural Resource Research ◽  
Resource Research

Effective management and monitoring of recreational use is fundamental in marine protected areas. The primary purpose of this study is to examine user’s satisfaction levels, crowding levels and the relationship between them at Florida Keys National Marine Sanctuary. Online surveys were sent via Qualtrics to email addresses obtained from the state of Florida during the summer of 2020. The results showed that the respondents felt very satisfied and only slightly crowded while snorkeling or scuba diving during their most recent 2019 trip in the Florida Keys, although satisfaction was still negatively impacted by crowding. An analysis of variance (ANOVA) showed that satisfaction levels were significantly lower in users who saw more people than they expected. A linear regression indicated significantly lower satisfaction with increasing age. Furthermore, a multiple regression showed that experiencing natural surroundings has a significant positive relationship in overall trip satisfaction, i.e., users that are more satisfied experiencing natural surroundings are also likely to be more satisfied with their overall trip satisfaction. This study suggests that the convergence of social and natural resource research and practices can help managers to create better policies that will maximize human benefits from, and minimize human pressures on, ocean and coastal environments.

Relationship between Anxiety and Performance in Scuba Diving

1979 ◽  
Vol 48 (3) ◽  
pp. 1009-1010 ◽  
Author(s):  
T. J. Griffiths ◽  
D. H. Steel ◽  
P. Vaccaro
Keyword(s):  
Training Program ◽  
Scuba Diving ◽  
Performance Tests ◽  
Anxiety Levels ◽  
And Performance ◽  
The Relationship

The present research examined the relationship between the anxiety levels of 62 beginning Scuba diving students and standardized performance tests from the Y.M.C.A. training program. Results suggested that there was no relationship between anxiety and performance on relatively simple tasks, while there was a relationship between anxiety and performance on the more complex diving maneuvers.

scholarly journals Allometric relationship and meat yield of Chama pacifica broderip, 1835 from the Gulf of Antalya, Turkey

2020 ◽  
Vol 7 (1) ◽  
pp. 46
Author(s):  
Raziye Tanrıverdi ◽  
Mehmet Gökoğlu ◽  
Jale Korun
Keyword(s):  
Shell Length ◽  
Scuba Diving ◽  
Potential Importance ◽  
Allometric Relationship ◽  
Yield Data ◽  
Shell Weight ◽  
Meat Yield ◽  
The Mean ◽  
Relationship Of ◽  
The Relationship

In this study, the allometric relationship and the meat yield of the large Pacific jewel-box Chama pacifica Broderip, 1835 were investigated. C. pacifica samples were by scuba diving at depths of 3-8 m in the Gulf of Antalya. The relationship of total shell length and total shell weight was determined as TW = 2.2693*TSL 2.5327 (R2= 0.69). The mean flesh weight and mean meat yield were determined to be 11,07±0.445 g and 6.84±0.18%, respectively. This research revealed the meat yield data of C. pacifica and its potential importance as a food source.Keywords: Chama pacifica; Pacific jewel-box; flesh weight; meat yield; allometric relationship

Interstellar gas in the central region of the Galaxy

1967 ◽  
Vol 31 ◽  
pp. 239-251 ◽  
Author(s):  
F. J. Kerr
Keyword(s):  
Central Region ◽  
Galactic Plane ◽  
Neutral Hydrogen ◽  
Continuum Emission ◽  
Galactic Centre ◽  
Interstellar Gas ◽  
Hydrogen Recombination ◽  
The Galaxy ◽  
Centre Region ◽  
The Relationship

A review is given of information on the galactic-centre region obtained from recent observations of the 21-cm line from neutral hydrogen, the 18-cm group of OH lines, a hydrogen recombination line at 6 cm wavelength, and the continuum emission from ionized hydrogen.Both inward and outward motions are important in this region, in addition to rotation. Several types of observation indicate the presence of material in features inclined to the galactic plane. The relationship between the H and OH concentrations is not yet clear, but a rough picture of the central region can be proposed.

The relationship of the scleractinian corals to the rugose corals

Paleobiology ◽  
1980 ◽  
Vol 6 (02) ◽  
pp. 146-160 ◽  
Author(s):  
William A. Oliver
Keyword(s):  
Critical Points ◽  
Scleractinian Corals ◽  
Convincing Evidence ◽  
Early Triassic ◽  
Rugose Corals ◽  
History Of ◽  
The Subject ◽  
Relationship Of ◽  
The Relationship ◽  
Biologic Factors

The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time. In spite of much work on the subject, advocates of the direct descent hypothesis have failed to find convincing evidence of this relationship. Critical points are:(1) Rugosan septal insertion is serial; Scleractinian insertion is cyclic; no intermediate stages have been demonstrated. Apparent intermediates are Scleractinia having bilateral cyclic insertion or teratological Rugosa.(2) There is convincing evidence that the skeletons of many Rugosa were calcitic and none are known to be or to have been aragonitic. In contrast, the skeletons of all living Scleractinia are aragonitic and there is evidence that fossil Scleractinia were aragonitic also. The mineralogic difference is almost certainly due to intrinsic biologic factors.(3) No early Triassic corals of either group are known. This fact is not compelling (by itself) but is important in connection with points 1 and 2, because, given direct descent, both changes took place during this only stage in the history of the two groups in which there are no known corals.

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