Structure design and stability analysis of free-diving sediment trap by Rui WANG, Caoyang YU, Yiming ZHONG, Lian LIAN

Subjects: “…free-diving sediment trap (fst)…”
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Free-diving underwater fish photography contests: a complementary tool for assessing littoral fish communities by Ana Gordoa, Jordi Boada, Antoni García-Rubies, Oscar Sagué

“…Overall, the study showed that photographic free-diving contest data are a potential tool for determining species richness in littoral systems since contest rules promote competition between participants to obtain maximum fish diversity. …”
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First Use of Free-Diving Photo-Identification of Porbeagle Shark (<i>Lamna nasus</i>) off the Brittany Coast, France by Armelle Jung, Arthur Ory, Paul Abaut, Lucas Zaccagnini

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Otological Complaints in Free Divers by Yücel Yüzbaşıoğlu, Akif Güneş, Sema Yüzbaşıoğlu, Aysegul Şentürk, Havva Şahin Kavaklı, Levent Ucuzal

Subjects: “…free diving…”
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Blood Adenosine Increase During Apnea in Spearfishermen Reinforces the Efficiency of the Cardiovascular Component of the Diving Reflex by Marion Marlinge, Marion Marlinge, Mohamed Chefrour, François Billaut, Marion Zavarro, Jean-Claude Rostain, Mathieu Coulange, Mathieu Coulange, Régis Guieu, Régis Guieu, Fabrice Joulia, Fabrice Joulia

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Characterising potential participants in kelp monitoring in the recreational diving community: A comparative study of South Africa and New Zealand by Serena Lucrezi

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Extreme Hypoxia Causing Brady-Arrythmias During Apnea in Elite Breath-Hold Divers by Thomas Kjeld, Anders Brenøe Isbrand, Katrine Linnet, Bo Zerahn, Jens Højberg, Egon Godthaab Hansen, Lars Christian Gormsen, Jacob Bejder, Thomas Krag, John Vissing, Hans Erik Bøtker, Henrik Christian Arendrup

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Traditional knowledge and artisanal fishing technology on the Xingu River in Pará, Brazil by EMC. Mesquita, VJ. Isaac-Nahum

“…The local fishers described the use of 12 different types of net, 10 hook and line techniques, and eight kinds of spearfishing. Free diving and scuba diving are also used for the capture of ornamental fish.…”
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Ecology and ethnoecology of dusky grouper [garoupa, <it>Epinephelus marginatus </it>(Lowe, 1834)] along the coast of Brazil by Silvano Renato AM, Begossi Alpina

“…It is a sedentary, monandric, and late maturing protogynous species, which makes it vulnerable to overharvesting even though it is mainly caught through hook and line or spear fishing through free diving. Lack of information on the ecology and biology of this species in Brazil is astonishing. …”
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Dancing with the devil: courtship behaviour, mating evidences and population structure of the Mobula tarapacana (Myliobatiformes: Mobulidae) in a remote archipelago in the Equatori... by Sibele Alves de Mendonça, Bruno César Luz Macena, Camila Brasilino Botêlho de Araújo, Natalia Priscila Alves Bezerra, Fabio Hissa Vieira Hazin

“…From December 2008 to June 2016, 827 rays were sighted through free diving visual census survey. From the total of the records, it was possible to identify the sex of 361 specimens, in which 215 were females and 146 were males. …”
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Diversity of Loricariidae (Actinopterygii: Siluriformes) assemblages in two Conservation Areas of the Middle Xingu River, Brazilian Amazon, and their suitability for sustainable or... by Maria Dayanne Lima de Lucena, Tatiana da Silva Pereira, Alany Pedrosa Gonçalves, Karina Dias Silva, Leandro Melo de Sousa

“…Thirty-two species of Loricariidae were collected in these reserves through either free diving or diving with compressed air. The composition of species varied according to the sampling method and area. …”
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Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico. by FJ González-Medina, OE Holguín-Quiñonez, G De la cruz-Agüero

“…The abundance of the conspicuous macrobenthos (gastropods, bivalves and echinoderms) was estimated visually by free diving at 4–6 m depth along two band-transects parallel to the coastline. …”
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Determination of Mortality Rates in Pinna nobilis (Linnaeus, 1758) Population in The Çanakkale Strait by Ata AKSU

“…Underwater observations were carried out either by scuba diving or free diving depending on the underwater characteristics of the region. …”
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Status of abalone fishery and experiential mariculture as a resource conservation strategy in Carot, Anda, Pangasinan by Emmanuel C. Capinpin, Jr.

“…The abalone fishery of Anda is artisanal or smallscale, typif ied by f ishers gleaning or free-diving on shallow rocky areas which are the typical habitat of abalone. …”
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Comparative analysis of free and scuba diving for benthopelagic and cryptic fish species associated with rocky reefs by Rodolfo Gutterres Giordano, Luciano Neves dos Santos

“…C. striatus was homogeneously distributed through all the depth strata (0-10 m) and scuba diving should be preferred over free diving to assess the abundance of this species at exposed rocky shores, undergoing continuous effects of waves and winds. …”
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Echinoderms from the Gulf of Venezuela, north-western coast of Venezuela by Nínive Espinoza-Rodríguez, Yumara Pernía, Héctor Severeyn, Yajaira García de Severeyn, Héctor Barrios-Garrido

“…According to the substrate, two methods were performed using quantitative (1 m2 quadrates), and qualitative free-diving observations. All organisms were counted and identified to the lowest possible taxonomic level; finally, diversity (Shannon diversity index), richness (number of species), and dominance in the different sampled substrates were recorded. …”
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Biological characteristics of rock goby, Gobius paganellus (Actinopterygii: Perciformes: Gobiidae), in the south-eastern Black Sea by S. Engin, K. Seyhan

“…Samplings were performed by free diving using spear gun and hand net at night time. …”
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Caracterización de los pastos marinos de Paredón Grande, norte de la provincia de Ciego de Ávila, Cuba/ Characterization of seagrass Paredon Grande key, north Ciego de Avila, Cuba... by Claudia Bustamante López, Leslie Hernández-Fernández, Fabián Pina-Amargós

“…For the quantitative characterization was used a square frame of 25 x 25 cm2 side, which was placed randomly 15 times at each site; and qualitative characterization of the sites the relative abundance and density of angiosperms that constituted seagrass patches were visually estimated by free diving. Angiosperms with higher density and abundance in the sampled sites was Thalassia testudinum and between macroalgae, the predominant species were of the genus Halimeda, Penicillus, Udotea, Caulerpa, Batophora and Acetabularia calyculus, Dasycladus vermicularis, Dictyosphaeria cavernosa and Valoniama crophysa. …”
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DISTRIBUCIÓN DE LOS HÁBITATS BENTÓNICOS DE LA LAGUNA DEL ARRECIFE ENMEDIO, SISTEMA ARRECIFAL LOBOS-TUXPAN, MÉXICO/ Distribution of benthic habitats of the lagoon the Enmedio Reef,... by Vicencio de la Cruz-Francisco, Marlene González-González, Liliana Flores-Galicia

“…Geographical data of benthic components in the reef lagoon were recorded by free diving during the November 2014-April 2016 period. …”
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Project “Biodiversity MARE Tricase”: A Species Inventory of the Coastal Area of Southeastern Salento (Ionian Sea, Italy) by Valerio Micaroni, Francesca Strano, Fabio Crocetta, Davide Di Franco, Stefano Piraino, Cinzia Gravili, Fabio Rindi, Marco Bertolino, Gabriele Costa, Joachim Langeneck, Marzia Bo, Federico Betti, Carlo Froglia, Adriana Giangrande, Francesco Tiralongo, Luisa Nicoletti, Pietro Medagli, Stefano Arzeni, Ferdinando Boero

“…Sampling was carried out by SCUBA and free diving, fishing gears, and citizen science from 0 to 70 m. …”
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