Marine Biology
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Underwater Photography Made Easy
Underwater Photography Made Easy Create amazing photos & video with by Annie Crawley IncludingIncluding highhigh definitiondefinition videovideo andand photophoto galleriesgalleries toto showshow youyou positioningpositioning andand bestbest techniques!techniques! BY ANNIE CRAWLEY SeaLife Cameras Perfect for every environment whether you are headed on a tropical vacation or diving the Puget Sound. These cameras meet all of your imaging needs! ©2013 Annie Crawley www.Sealife-cameras.com www.DiveIntoYourImagination.com Edmonds Underwater Park, Washington All rights reserved. This interactive book, or parts thereof, may not be reproduced in any form without permission in writing from the publisher, Dive Into Your Imagination, LLC a company founded by Annie Crawley committed to change the way a new generation views the Ocean and themselves. Dive Into Your Imagination, Reg. Pat. & Tm. Off. Underwater Photography Made Easy shows you how to take great photos and video with your SeaLife camera system. After our introduction to this interactive book you will learn: 1. Easy to apply tips and tricks to help you create great images. 2. Five quick review steps to make sure your SeaLife camera system is ready before every dive. 3. Neutral buoyancy tips to help you take great underwater photos & video with your SeaLife camera system. 4. Macro and wide angle photography and video basics including color, composition, understanding the rule of thirds, leading diagonals, foreground and background considerations, plus lighting with strobes and video lights. 5. Techniques for both temperate and tropical waters, how to photograph divers, fish behavior and interaction shots, the difference in capturing animal portraits versus recording action in video. You will learn how to capture sharks, turtles, dolphins, clownfish, plus so much more. -
Underwater Photographyphotography a Web Magazine
UnderwaterUnderwater PhotographyPhotography a web magazine Oct/Nov 2002 Nikon D100 housings Fuji S2 housing Sony F707 housing Kodak DCS Pro 14n Sperm whale Nai’a liveaboard U/w photojournalist - Jack Jackson Henry the seadragon Scilly Seals Lights & divers Easy macro British fish Underwater tripod Visions 2002 UwP 1 What links these sites? Turn to page 7 to find out... UwP 2 UnderwaterUnderwater PhotographyPhotography a web magazine Oct/Nov 2002 e mail [email protected] Contents 4 Travel & events 30 Meet Henry 43 Easy macro 8 New products 14 Sperm whale by Andy & Angela Heath with Ee wan Khoo 35 Scilly Seals 47 British fish with Tony Wu 19 Nai’a liveaboard with Will & Demelza by Mark Webster Posslethwaite 54 Size matters 35 Lights & divers by Jukka Nurminen & Alex Mustard by Pete Atkinson 25 U/w photojournalist by Martin Edge Cover photo by Tony Wu 58 Visions 2002 by Jack Jackson UwP 3 Travel & events Jim Breakell Tahiti talk at Dive Show, Oct 12/13 2002 In September Jim Breakell of Scuba Safaris went on a fact finding trip to the Pacific. First off he went to Ryrutu for for a few days humpback whale watching, then a week on the inaugural trip of the Tahiti Aggressor and then on to Bora Bora (what a hard life he has!) He will be giving an illustrated talk about his trip at the Dive Show in Birmingham on October 12/13th 2002. For more information contact Scuba Safaris, PO Box 8, Edenbridge, Kent TN8 7ZS. Tel 01342 851196. www.scuba-safaris.com John Boyle video trip May 2003 INVITATION John Boyle will be hosting a video diving trip from Bali to Komodo on Kararu next year. -
In Situ Observations Increase the Diversity Records of Rocky-Reef Inhabiting Echinoderms Along the South West Coast of India
Indian Journal of Geo Marine Sciences Vol. 48 (10), October 2019, pp. 1528-1533 In situ observations increase the diversity records of Rocky-reef inhabiting Echinoderms along the South West Coast of India Surendar Chandrasekar1*, Singarayan Lazarus2, Rethnaraj Chandran3, Jayasingh Chellama Nisha3, Gigi Chandra Rajan4 and Chowdula Satyanarayana1 1Marine Biology Regional Centre, Zoological Survey of India, Chennai 600 028, Tamil Nadu, India 2Institute for Environmental Research and Social Education, No.150, Nesamony Nagar, Nagercoil 629001, Tamil Nadu, India 3GoK-Coral Transplantation/Restoration Project, Zoological Survey of India - Field Station, Jamnagar 361 001, Gujrat, India 4Department of Zoology, All Saints College, Trivandrum 695 008, Kerala, India *[Email: [email protected]] Received 19 January 2018; revised 23 April 2018 Diversity of Echinoderms was studied in situ in rocky reefs areas of the south west coast of India from Goa (Lat. N 15°21.071’; Long. E 073°47.069’) to Kanyakumari (Lat. N 08°06.570’; Long. E 077°18.120’) via Karnataka and Kerala. The underwater visual census to assess the biodiversity was carried out by SCUBA diving. This study reveals 11 new records to Goa, 7 to Karnataka, 5 to Kerala and 7 to the west coast of Tamil Nadu. A total of 15 species representing 12 genera, 10 families, 8 orders and 5 Classes were recorded namely Holothuria atra, H. difficilis, H. leucospilota, Actinopyga mauritiana, Linckia laevigata, Temnopleurus toreumaticus, Salmacis bicolor, Echinothrix diadema, Stomopneustes variolaris, Macrophiothrix nereidina, Tropiometra carinata, Linckia multifora, Fromia milleporella and Ophiocoma scolopendrina. Among these, the last three are new records to the west coast of India. -
Echinodermata) and Their Permian-Triassic Origin
Molecular Phylogenetics and Evolution 66 (2013) 161-181 Contents lists available at SciVerse ScienceDirect FHYLÖGENETICS a. EVOLUTION Molecular Phylogenetics and Evolution ELSEVIER journal homepage:www.elsevier.com/locate/ympev Fixed, free, and fixed: The fickle phylogeny of extant Crinoidea (Echinodermata) and their Permian-Triassic origin Greg W. Rouse3*, Lars S. Jermiinb,c, Nerida G. Wilson d, Igor Eeckhaut0, Deborah Lanterbecq0, Tatsuo 0 jif, Craig M. Youngg, Teena Browning11, Paula Cisternas1, Lauren E. Helgen-1, Michelle Stuckeyb, Charles G. Messing k aScripps Institution of Oceanography, UCSD, 9500 Gilman Drive, La Jolla, CA 92093, USA b CSIRO Ecosystem Sciences, GPO Box 1700, Canberra, ACT 2601, Australia c School of Biological Sciences, The University of Sydney, NSW 2006, Australia dThe Australian Museum, 6 College Street, Sydney, NSW 2010, Australia e Laboratoire de Biologie des Organismes Marins et Biomimétisme, University of Mons, 6 Avenue du champ de Mars, Life Sciences Building, 7000 Mons, Belgium fNagoya University Museum, Nagoya University, Nagoya 464-8601, Japan s Oregon Institute of Marine Biology, PO Box 5389, Charleston, OR 97420, USA h Department of Climate Change, PO Box 854, Canberra, ACT 2601, Australia 1Schools of Biological and Medical Sciences, FI 3, The University of Sydney, NSW 2006, Sydney, Australia * Department of Entomology, NHB E513, MRC105, Smithsonian Institution, NMNH, P.O. Box 37012, Washington, DC 20013-7012, USA k Oceanographic Center, Nova Southeastern University, 8000 North Ocean Drive, Dania Beach, FL 33004, USA ARTICLE INFO ABSTRACT Añicle history: Although the status of Crinoidea (sea lilies and featherstars) as sister group to all other living echino- Received 6 April 2012 derms is well-established, relationships among crinoids, particularly extant forms, are debated. -
The Shallow-Water Crinoid Fauna of Kwajalein Atoll, Marshall Islands: Ecological Observations, Interatoll Comparisons, and Zoogeographic Affinities!
Pacific Science (1985), vol. 39, no. 4 © 1987 by the Univers ity of Hawaii Press. All rights reserved The Shallow-Water Crinoid Fauna of Kwajalein Atoll, Marshall Islands: Ecological Observations, Interatoll Comparisons, and Zoogeographic Affinities! D. L. ZMARZLy 2 ABSTRACT: Twelve species ofcomatulid crinoids in three families were found to inhabit reefs at Kwajalein Atoll during surveys conducted both day and night by divers using scuba gear. Eleven of the species represent new records for the atoll, and five are new for the Marshall Islands. A systematic resume of each species is presented, including observations on die! activity patterns, degree of exposure when active, and current requirements deduced from local distri butions. More than half of the species were strictly nocturnal. Densities of nocturnal populations were much higher than those typically observed during the day . Occurrence and distribution ofcrinoids about the atoll appeared to be influenced by prevailing currents. Some species, of predominantly cryptic and semicryptic habit by day, occurred at sites both with and without strong currents. While these species were able to survive in habitats where currents prevailed, they appeared not to require strong current flow. In contrast, the remaining species, predominantly large, fully exposed comasterids, were true rheophiles; these were found on seaward reefs and only on lagoon reefs in close proximity to tidal passes. Comparison of crinoid records between atolls in the Marshall Islands shows Kwajalein to have the highest diversity, although current disparities between atolls in the number of species recorded undoubtedly reflect to some extent differences in sampling effort and methods. Based on pooled records, a total of 14 shallow-water crinoid species is known for the Marshall Islands, compared with 21 for the Palau Archipelago and 55 for the Philippines. -
The Shallow-Water Macro Echinoderm Fauna of Nha Trang Bay (Vietnam): Status at the Onset of Protection of Habitats
The Shallow-water Macro Echinoderm Fauna of Nha Trang Bay (Vietnam): Status at the Onset of Protection of Habitats Master Thesis in Marine Biology for the degree Candidatus scientiarum Øyvind Fjukmoen Institute of Biology University of Bergen Spring 2006 ABSTRACT Hon Mun Marine Protected Area, in Nha Trang Bay (South Central Vietnam) was established in 2002. In the first period after protection had been initiated, a baseline survey on the shallow-water macro echinoderm fauna was conducted. Reefs in the bay were surveyed by transects and free-swimming observations, over an area of about 6450 m2. The main area focused on was the core zone of the marine reserve, where fishing and harvesting is prohibited. Abundances, body sizes, microhabitat preferences and spatial patterns in distribution for the different species were analysed. A total of 32 different macro echinoderm taxa was recorded (7 crinoids, 9 asteroids, 7 echinoids and 8 holothurians). Reefs surveyed were dominated by the locally very abundant and widely distributed sea urchin Diadema setosum (Leske), which comprised 74% of all specimens counted. Most species were low in numbers, and showed high degree of small- scale spatial variation. Commercially valuable species of sea cucumbers and sea urchins were nearly absent from the reefs. Species inventories of shallow-water asteroids and echinoids in the South China Sea were analysed. The results indicate that the waters of Nha Trang have echinoid and asteroid fauna quite similar to that of the Spratly archipelago. Comparable pristine areas can thus be expected to be found around the offshore islands in the open parts of the South China Sea. -
Dive Log Australia
WAKATOBI REEFS A CELEBRATION OF CORALS The famous resort of Wakatobi in South East Sulawesi, Indonesia, probably needs no introduction for many readers. The shallow reef flats in 1 or 2 meters are a great place to start Blue waters swirl above and a hint of clouds in a blue sky prevail. Early morning shafts of sunlight bathe a coral head with light producing a surreal image of corals in the sunlight. eteran pioneer Australian Underwater Photographer the idyllic location and accommodation, the wonderful hospitality, Kevin Deacon decided to forgo all other genres of the range of dive sites, dive boat facilities and all round diver support, one will not suffer for their art here! clown fish and fast growing Acropora & soft corals. produced a portfolio that I believe is faithful to the genre of Vunderwater photography during his most recent tour While cruising this area the creative mind must be fully engaged "Beautiful Reefs". I hope you enjoy these images and the to concentrate on capturing the simple beauty of Wakatobi REEF HUNTING AND SHOOTING looking for the right coral reef elements. By its very nature coral reefs information here helps you on your way as a `Master of the Light’. Indo Pacific coral reefs. A task not as simple as it might seem Creating such images comes with some great challenges. Cruising and their inhabitants are designed to create confusion to the eye, all Kevin Deacon is one of the pioneers of underwater photography in but the resulting images illustrate the value in the age old rule, a coral reef leaves one with an impression of living beauty with part of nature's survival strategy. -
Underwater Survey for Oil and Gas Industry: a Review of Close Range Optical Methods
remote sensing Review Underwater Survey for Oil and Gas Industry: A Review of Close Range Optical Methods Bertrand Chemisky 1,*, Fabio Menna 2 , Erica Nocerino 1 and Pierre Drap 1 1 LIS UMR 7020, Aix-Marseille Université, CNRS, Université De Toulon, 13397 Marseille, France; [email protected] (E.N.); [email protected] (P.D.) 2 3D Optical Metrology (3DOM) Unit, Bruno Kessler Foundation (FBK), Via Sommarive 18, 38123 Trento, Italy; [email protected] * Correspondence: [email protected] Abstract: In both the industrial and scientific fields, the need for very high-resolution cartographic data is constantly increasing. With the aging of offshore subsea assets, it is very important to plan and maintain the longevity of structures, equipment, and systems. Inspection, maintenance, and repair (IMR) of subsea structures are key components of an overall integrity management system that aims to reduce the risk of failure and extend the life of installations. The acquisition of very detailed data during the inspection phase is a technological challenge, especially since offshore installations are sometimes deployed in extreme conditions (e.g., depth, hydrodynamics, visibility). After a review of high resolution mapping techniques for underwater environment, this article will focus on optical sensors that can satisfy the requirements of the offshore industry by assessing their relevance and degree of maturity. These requirements concern the resolution and accuracy but also cost, ease of implementation, and qualification. With the evolution of embedded computing resources, in-vehicle optical survey solutions are becoming increasingly important in the landscape of large-scale mapping solutions and more and more off-the-shelf systems are now available. -
Underwater Optical Imaging: Status and Prospects
Underwater Optical Imaging: Status and Prospects Jules S. Jaffe, Kad D. Moore Scripps Institution of Oceanography. La Jolla, California USA John McLean Arete Associates • Tucson, Arizona USA Michael R Strand Naval Surface Warfare Center. Panama City, Florida USA Introduction As any backyard stargazer knows, one simply has vision, and photography". Subsequent to that, there to look up at the sky on a cloudless night to see light have been several books which have summarized a whose origin was quite a long time ago. Here, due to technical understanding of underwater imaging such as the fact that the mean scattering and absorption Merten's book entitled "In Water Photography" lengths are greater in size than the observable uni- (Mertens, 1970) and a monograph edited by Ferris verse, one can record light from stars whose origin Smith (Smith, 1984). An interesting conference which occurred around the time of the big bang. took place in 1970 resulted in the publication of several Unfortunately for oceanographers, the opacity of sea papers on optics of the sea, including the air water inter- water to light far exceeds these intergalactic limits, face and the in water transmission and imaging of making the job of collecting optical images in the ocean objects (Agard, 1973). In this decade, several books by a difficult task. Russian authors have appeared which treat these prob- Although recent advances in optical imaging tech- lems either in the context of underwater vision theory nology have permitted researchers working in this area (Dolin and Levin, 1991) or imaging through scattering to accomplish projects which could only be dreamed of media (Zege et al., 1991). -
Imaging the Twilight Zone: the Morphology And
IMAGING THE TWILIGHT ZONE: THE MORPHOLOGY AND DISTRIBUTION OF MESOPHOTIC ZONE FEATURES, A CASE STUDY FROM BONAIRE, DUTCH CARIBBEAN by Bryan Mark Keller A thesis submitted to the Faculty of the University of Delaware in partial fulfillment of the requirements for the degree of Master of Science in Marine Studies Spring 2011 Copyright 2011 Bryan M. Keller All Rights Reserved IMAGING THE TWILIGHT ZONE: THE MORPHOLOGY AND DISTRIBUTION OF MESOPHOTIC ZONE FEATURES, A CASE STUDY FROM BONAIRE, DUTCH CARIBBEAN by Bryan Mark Keller Approved: _____________________________________________________ Arthur C. Trembanis, Ph.D. Professor in charge of thesis on behalf of the Advisory Committee Approved: _____________________________________________________ Charles E. Epifanio, Ph.D. Director of the School of Marine Science and Policy Approved: _____________________________________________________ Nancy M. Targett, Ph.D. Dean of the College of Earth, Ocean, and Environment Approved: _____________________________________________________ Charles G. Riordan, Ph.D. Vice Provost for Graduate and Professional Education ACKNOWLEDGMENTS I would like to thank my advisor, Dr. Art Trembanis, for his instruction and support throughout my thesis research. My gratitude is also extended to Dr. Douglas Miller and Dr. Mark Patterson for their assistance and guidance throughout the entirety of my research. Much thanks to the University of Delaware Office of Graduate and Professional Education, the Department of Oceanography, and the Department of Geology for the funding necessary for me to perform m fieldwork in Bonaire. Finally, I would like to thank my lab mates and colleagues for answering my countless questions and always being willing to provide insight about any problems that I faced. iii DEDICATION This manuscript is dedicated to Rachel Lyons who has known me through all of my struggles and always insisted that I chase my dreams. -
Chapter 6 Underwater Photography
Chapter 6 Underwater Photography It is hard to imagine a more difficult endeavor than taking pictures underwater. You have to be at least partially crazy to get involved in it, and if you are not crazy when you start, it is virtually guaranteed to make you crazy. First, you have to learn to survive in an alien environment. Before you even think about the highly specialized photographic equipment required, you have to learn how to safely breathe and move about underwater. That means you have to become a certified diver. The most important qualification required to become a good underwater photographer is to be a good diver. You can’t worry about things like f- stops, depth of field, shutter speeds, exposure, point of focus, and other technical photographic stuff if you are not comfortable underwater. Things like breath and buoyancy control, awareness of time, depth and tank air pressure, must become second nature, like shifting while driving a car with a manual transmission. Underwater photography, even with excellent diving skills, state-of-the-art equipment, and plentiful subjects, is still a very low batting average endeavor. You fail much more often than you succeed. That means that you discard a lot more images than you keep. But the occasional “keeper” can make up for all the throwaways. Underwater photography offers the highest highs, and the lowest lows of any endeavor I know. Everything in underwater photography is stacked against success. First, unlike taking pictures topside, you have a very limited amount of time to capture your image (before you have to surface or drown.) Whatever underwater subject you are seeking on each dive, you have to find it in less than an hour, you can’t hang around all day waiting for something to appear. -
For Memorable Underwater Photography Thank You for Downloading Our Guide “10 Professional Tips for Memorable Underwater Photography”
10 Professional TIPS for Memorable Underwater Photography Thank you for downloading our guide “10 Professional Tips for Memorable Underwater Photography”. Taking images and videos of beautiful marine life is so very exciting and we are thrilled for you to join the spectacular world of marine photography! Welcome!! Within these pages, you will find tips and helpful suggestions on how to prepare your underwater camera and yourself! Think of it as your guide to everything you need to know to say SAFE and share awesome underwater video and pictures with the world. The information gathered is backed up by our combined 45+ years of field experience of diving, snorkeling, guiding, observing, researching and FILMING the Kona Manta Rays. We hope you enjoy the guide and please consider helping us by sharing it on social media. Let’s dive in…. Warmest Aloha JAMES L. WING MARTINA L. WING Today, you have so many choices when it comes to compact, easy to use underwater cameras. We Tips for see people using GoPro’s, disposable cameras or even IPhones. Underwater Here is the trick though. As much as we want Video and to encourage you to keep a memory of the underwater world, you are operating often in a Pictures low-light environment with fast moving creatures. What your eyes see is not necessarily what your camera captures. BE CONFORTABLE WITH YOUR SNORKEL OR 1TIP DIVE EQUIPMENT SAFETY FIRST! You are leaving the humans’ comfort zone, the place of constant air supply, and you are entering an environment that requires multi- tasking. We recommend mastering your ocean skills and gear before you add the additional task of taking pictures in the ocean with beautiful fish in front of you! WWW.MANTARAYADVOCATES.COM 2 The extra complex task of photography usually results in mediocre imagery and unsafe practices.