scholarly journals PELAGIC TRAWL SURVEYS IN THE BULGARIAN MARINE AREA 2017-2019

2020 ◽  
Author(s):  
Violin St. Raykov
Keyword(s):  
Marine Area ◽  
Trawl Surveys

Sustainable tourism planning in Bahía Solano, Colombia

2020 ◽  
Vol 10 (2) ◽  
pp. 165-176
Author(s):  
Gabriela Antošová ◽  
Ivan Dario Medina Rojas ◽  
Mauricio Peralta Mejía ◽  
Helmuth Yesid Arias Gómez
Keyword(s):  
Social Innovation ◽  
Local Development ◽  
Sustainable Tourism ◽  
High Rate ◽  
Tourism Planning ◽  
Tourist Attractions ◽  
Marine Area ◽  
Bird Watching ◽  
Enormous Amount ◽  
Water Sports

AbstractThe municipality of Bahía Solano possesses important tourist attractions. The majority of them consist of natural wonders such as whale, dolphin and bird watching. Its marine area offers diving courses, all types of fishing, surfing, other water sports etc. The enormous amount of natural wealth stands in contrast to the lack of local development and the high rate of poverty among its inhabitants. Bahía Solano has enviable tourist professions but a low level of competition. This research proposes a methodology of social innovation, elaborated by researchers, that involves nature, communities and tour operators, where a connection of surveys with the expectations and perceptions of the different entities (inhabitants, tourists, and tour operators) has been obtained.

scholarly journals Biogenic Iodine and Iodine-Containing Metabolites

2006 ◽  
Vol 1 (2) ◽  
pp. 1934578X0600100 ◽  
Author(s):  
Valery M Dembitsky
Keyword(s):  
Marine Invertebrates ◽  
Biological Activities ◽  
Biological Significance ◽  
Covalent Bond ◽  
Minor Components ◽  
Marine Area ◽  
The Future ◽  
Comprehensive Survey ◽  
Living Organisms

This review is intended as a comprehensive survey of iodinated metabolites possessing carbon–iodine covalent bond, which have been obtained from living organisms. Generally thought to be minor components produced by many different organisms these interesting compounds now number more than 110. Many from isolated and identified iodine-containing metabolites showed high biological activities. Recent research, especially in the marine area, indicates this number will increase in the future. Sources of iodinated metabolites include microorganisms, algae, marine invertebrates, and some animals. Their origin and possible biological significance have also been discussed.

scholarly journals Impact of Intensive Land-Based Fish Culture in Qingdao, China, on the Bacterial Communities in Surrounding Marine Waters and Sediments

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Qiufen Li ◽  
Yan Zhang ◽  
David Juck ◽  
Nathalie Fortin ◽  
Charles W. Greer
Keyword(s):  
Bacterial Communities ◽  
Gel Electrophoresis ◽  
Denaturing Gradient Gel Electrophoresis ◽  
Fish Culture ◽  
Fish Ponds ◽  
Marine Area ◽  
Gradient Gel Electrophoresis ◽  
Reducing Bacteria ◽  
The Impact ◽  
Nitrate Reducing Bacteria

The impact of intensive land-based fish culture in Qingdao, China, on the bacterial communities in surrounding marine environment was analyzed. Culture-based studies showed that the highest counts of heterotrophic, ammonium-oxidizing, nitrifying, and nitrate-reducing bacteria were found in fish ponds and the effluent channel, with lower counts in the adjacent marine area and the lowest counts in the samples taken from 500 m off the effluent channel. Denaturing gradient gel electrophoresis (DGGE) analysis was used to assess total bacterial diversity. Fewer bands were observed from the samples taken from near the effluent channel compared with more distant sediment samples, suggesting that excess nutrients from the aquaculture facility may be reducing the diversity of bacterial communities in nearby sediments. Phylogenetic analysis of the sequenced DGGE bands indicated that the bacteria community of fish-culture-associated environments was mainly composed of Flavobacteriaceae, gamma- and deltaproteobacteria, including generaGelidibacter, Psychroserpen, Lacinutrix,andCroceimarina.

Dynamics of Production in a Marine Area

1946 ◽  
Vol 16 (4) ◽  
pp. 321-337 ◽  
Author(s):  
George L. Clarke ◽  
W. T. Edmondson ◽  
W. E. Ricker
Keyword(s):  
Marine Area

scholarly journals Assessment of three nemipterid stocks based on trawl surveys in the Gulf of Suez, Red Sea

2018 ◽  
Vol 44 (1) ◽  
pp. 45-49 ◽  
Author(s):  
A.A. El-Ganainy ◽  
M.T. Khalil ◽  
E.E.E. El-Bokhty ◽  
M.A. Saber ◽  
F.A.A. Abd El-Rahman
Keyword(s):  
Red Sea ◽  
Gulf Of Suez ◽  
Trawl Surveys

Improving area swept estimates from bottom trawl surveys

2011 ◽  
Vol 110 (1) ◽  
pp. 198-206 ◽  
Author(s):  
Stan Kotwicki ◽  
Michael H. Martin ◽  
Edward A. Laman
Keyword(s):  
Bottom Trawl ◽  
Trawl Surveys

scholarly journals A Histological Study of Ovarian Development in the Giant Red ShrimpAristaeomorpha foliacea(Crustacea: Decapoda: Aristeidae) from the Southern Tyrrhenian Sea (Western Mediterranean)

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Anna Perdichizzi ◽  
Laura Pirrera ◽  
Valeria Micale ◽  
Ugo Muglia ◽  
Paola Rinelli
Keyword(s):  
Ovarian Development ◽  
Developmental Stages ◽  
Histological Study ◽  
Western Mediterranean ◽  
Ovary Development ◽  
Tyrrhenian Sea ◽  
Length Frequency ◽  
Southern Tyrrhenian Sea ◽  
Aristaeomorpha Foliacea ◽  
Trawl Surveys

The reproductive features of the giant red shrimp,Aristaeomorpha foliacea, were investigated in the southern Tyrrhenian sea by experimental trawl sampling. The annual length-frequency distribution showed a multimodal trend in females, ranging between 16 and 67 mm carapace length (CL), and a unimodal trend in males (18–45 mm CL). Mature males occurred in different proportions all year round, while females displayed seasonal maturity (June—September), with a peak in July. Six oocyte developmental stages were identified, the most advanced of which (Pv, postvitellogenic) had never been described before in this species. Ovary development followed a group-synchronous pattern, with the yolked oocyte stock clearly separated from the reservoir of unyolked oocytes, suggesting thatA. foliaceais a total spawner, with determinate fecundity. Based upon histological findings, a revision of macroscopic maturity staging employed in Mediterranean bottom trawl surveys (MEDITS) is proposed.

Vertical Distribution of Fish Biomass in Lake Superior: Implications for Day Bottom Trawl Surveys

2007 ◽  
Vol 27 (3) ◽  
pp. 735-749 ◽  
Author(s):  
Jason D. Stockwell ◽  
Daniel L. Yule ◽  
Thomas R. Hrabik ◽  
Jean V. Adams ◽  
Owen T. Gorman ◽  
...  
Keyword(s):  
Vertical Distribution ◽  
Lake Superior ◽  
Bottom Trawl ◽  
Fish Biomass ◽  
Distribution Of Fish ◽  
Trawl Surveys
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