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Colonial Tunicates: Species Guide
SPECIES IN DEPTH Colonial Tunicates Colonial Tunicates Tunicates are small marine filter feeder animals that have an inhalant siphon, which takes in water, and an exhalant siphon that expels water once it has trapped food particles. Tunicates get their name from the tough, nonliving tunic formed from a cellulose-like material of carbohydrates and proteins that surrounds their bodies. Their other name, sea squirts, comes from the fact that many species will shoot LambertGretchen water out of their bodies when disturbed. Massively lobate colony of Didemnum sp. A growing on a rope in Sausalito, in San Francisco Bay. A colony of tunicates is comprised of many tiny sea squirts called zooids. These INVASIVE SEA SQUIRTS individuals are arranged in groups called systems, which form interconnected Star sea squirts (Botryllus schlosseri) are so named because colonies. Systems of these filter feeders the systems arrange themselves in a star. Zooids are shaped share a common area for expelling water like ovals or teardrops and then group together in small instead of having individual excurrent circles of about 20 individuals. This species occurs in a wide siphons. Individuals and systems are all variety of colors: orange, yellow, red, white, purple, grayish encased in a matrix that is often clear and green, or black. The larvae each have eight papillae, or fleshy full of blood vessels. All ascidian tunicates projections that help them attach to a substrate. have a tadpole-like larva that swims for Chain sea squirts (Botryloides violaceus) have elongated, less than a day before attaching itself to circular systems. Each system can have dozens of zooids. -
New Zealand Oceanographic Institute Memoir 100
ISSN 0083-7903, 100 (Print) ISSN 2538-1016; 100 (Online) , , II COVER PHOTO. Dictyodendrilla cf. cavernosa (Lendenfeld, 1883) (type species of Dictyodendri/la Bergquist, 1980) (see page 24), from NZOI Stn I827, near Rikoriko Cave entrance, Poor Knights Islands Marine Reserve. Photo: Ken Grange, NZOI. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ NATIONAL INSTITUTE OF WATER AND ATMOSPHERIC RESEARCH The Marine Fauna of New Zealand: Index to the Fauna 2. Porifera by ELLIOT W. DAWSON N .Z. Oceanographic Institute, Wellington New Zealand Oceanographic Institute Memoir 100 1993 • This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ Cataloguing in publication DAWSON, E.W. The marine fauna of New Zealand: Index to the Fauna 2. Porifera / by Elliot W. Dawson - Wellington: New Zealand Oceanographic Institute, 1993. (New Zealand Oceanographic Institute memoir, ISSN 0083-7903, 100) ISBN 0-478-08310-6 I. Title II. Series UDC Series Editor Dennis P. Gordon Typeset by Rose-Marie C. Thompson NIWA Oceanographic (NZOI) National Institute of Water and Atmospheric Research Received for publication: 17 July 1991 © NIWA Copyright 1993 2 This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ CONTENTS Page ABSTRACT 5 INTRODUCTION 5 SCOPE AND ARRANGEMENT 7 SYSTEMATIC LIST 8 Class DEMOSPONGIAE 8 Subclass Homosclcromorpha .............................................................................................. -
High Level Environmental Screening Study for Offshore Wind Farm Developments – Marine Habitats and Species Project
High Level Environmental Screening Study for Offshore Wind Farm Developments – Marine Habitats and Species Project AEA Technology, Environment Contract: W/35/00632/00/00 For: The Department of Trade and Industry New & Renewable Energy Programme Report issued 30 August 2002 (Version with minor corrections 16 September 2002) Keith Hiscock, Harvey Tyler-Walters and Hugh Jones Reference: Hiscock, K., Tyler-Walters, H. & Jones, H. 2002. High Level Environmental Screening Study for Offshore Wind Farm Developments – Marine Habitats and Species Project. Report from the Marine Biological Association to The Department of Trade and Industry New & Renewable Energy Programme. (AEA Technology, Environment Contract: W/35/00632/00/00.) Correspondence: Dr. K. Hiscock, The Laboratory, Citadel Hill, Plymouth, PL1 2PB. [email protected] High level environmental screening study for offshore wind farm developments – marine habitats and species ii High level environmental screening study for offshore wind farm developments – marine habitats and species Title: High Level Environmental Screening Study for Offshore Wind Farm Developments – Marine Habitats and Species Project. Contract Report: W/35/00632/00/00. Client: Department of Trade and Industry (New & Renewable Energy Programme) Contract management: AEA Technology, Environment. Date of contract issue: 22/07/2002 Level of report issue: Final Confidentiality: Distribution at discretion of DTI before Consultation report published then no restriction. Distribution: Two copies and electronic file to DTI (Mr S. Payne, Offshore Renewables Planning). One copy to MBA library. Prepared by: Dr. K. Hiscock, Dr. H. Tyler-Walters & Hugh Jones Authorization: Project Director: Dr. Keith Hiscock Date: Signature: MBA Director: Prof. S. Hawkins Date: Signature: This report can be referred to as follows: Hiscock, K., Tyler-Walters, H. -
Cape Wrath Survey
Cape Wrath Survey diver & guillemot May 2002 marbled swimming crab Summary Report velvet crab & gooseberry seasquirts brittlestars in pitted limestone tideswept kelp forest lemon sole Cape Wrath Survey North Coast As well as being a famous nautical Sites 9, 19, 20 and 21 on the north coast were swept by strong currents, and exposed to waves from landmark, Cape Wrath marks a northerly directions. Cuvie kelp forests grew in shallow water, with dense red algae (Delesseria geographical and biological sanguinea, Plocamium cartilagineum, Phycodrys rubens and Odonthalia dentata) on stipes and on boundary between the exposed, rocks beneath. At the extremely exposed offshore rock Duslic (Site 19), clumps of blue mussels current-swept north coast and grew on kelp stipes, and breadcrumb sponge was common wrapped around kelp stipes at several Pentland Firth, and the more gentle sites. In deeper water, animal turfs covered rocks. Dominant animals varied from site to site, but waters of the Minch. The survey colonial and small solitary seasquirts were particularly abundant. At An Garb Eilean (Site 9), a small covered 24 sites spread over a island used by the military for target practice, north-east facing rock slopes were covered with dense large area of this spectacular part oaten-pipe sea fir Tubularia indivisa, together with abundant elegant anemones on vertical faces. of north-west Scotland. Where rocks were scoured by nearby sand, bushy sea mats Securiflustra securifrons and Flustra foliacea were common, with featherstars and scattered jewel anemones on vertical faces. Cape Wrath Faraid Head Cape Wrath (Site 15) proved as spectacular underwater as above, with wave-battered slopes covered with cuvie kelp Rock and boulders at Sites 10 and 11, slightly sheltered (Laminaria hyperborea), and a dense short turf of animals from the main current by offshore rocks had little beneath the kelp and in deeper water. -
The Seaweed Flora of a Young Semi-Enclosed Sea: the Baltic
HELGOL.~NDER MEERESUNTERSUCHUNGEN Helgol&nder Meeresunters. 42, 243-250 (1988) The seaweed flora of a young semi-enclosed sea: The Baltic. Salinity as a possible agent of flora divergence* G. Russell Department of Botany, The University/Liverpool L69 3BX, England ABSTRACT: The salinity tolerances of Baltic and Atlantic populations of Fucus vesiculosus and Chorda filum have been measured using net photosynthesis as an index of tissue damage. Atlantic Fucus proved to have a broader salinity tolerance than Atlantic Chorda, a result which is consistent with others published on the tolerances of intertidal and sublittoral marine species. The optimum salinity for all Atlantic plants was 11 or 34%0, but that of all Baltic plants was 6%o. Baltic Fucus and Chorda were different in breadth of tolerance, in spite of the fact that they inhabit the same sublittoral habitat. This difference is interpreted in relation to their respective life-forms, Fucus being perennial and Chorda annual. Fucus is therefore present as a macrothallus at all times of year, including the critical low-salinity period of the spring ice-melt. Chorda evades damage by existing as a resistent microthallus at this time. It is concluded that the distinctive character of Baltic marine algae deserves nomenclatural recognition at some level below that of the species. The rank of subspecies would appear the most appropriate of those hsted in the Code, but none of those available is able adequately to express the patterns of variation now being reported. INTRODUCTION The Baltic Sea, like the Mediterranean, has a very narrow exit to the Atlantic Ocean, and the fact that the flow of its seawater is almost always in an outward direction, serves only to increase its isolation. -
Algae & Marine Plants of Point Reyes
Algae & Marine Plants of Point Reyes Green Algae or Chlorophyta Genus/Species Common Name Acrosiphonia coalita Green rope, Tangled weed Blidingia minima Blidingia minima var. vexata Dwarf sea hair Bryopsis corticulans Cladophora columbiana Green tuft alga Codium fragile subsp. californicum Sea staghorn Codium setchellii Smooth spongy cushion, Green spongy cushion Trentepohlia aurea Ulva californica Ulva fenestrata Sea lettuce Ulva intestinalis Sea hair, Sea lettuce, Gutweed, Grass kelp Ulva linza Ulva taeniata Urospora sp. Brown Algae or Ochrophyta Genus/Species Common Name Alaria marginata Ribbon kelp, Winged kelp Analipus japonicus Fir branch seaweed, Sea fir Coilodesme californica Dactylosiphon bullosus Desmarestia herbacea Desmarestia latifrons Egregia menziesii Feather boa Fucus distichus Bladderwrack, Rockweed Haplogloia andersonii Anderson's gooey brown Laminaria setchellii Southern stiff-stiped kelp Laminaria sinclairii Leathesia marina Sea cauliflower Melanosiphon intestinalis Twisted sea tubes Nereocystis luetkeana Bull kelp, Bullwhip kelp, Bladder wrack, Edible kelp, Ribbon kelp Pelvetiopsis limitata Petalonia fascia False kelp Petrospongium rugosum Phaeostrophion irregulare Sand-scoured false kelp Pterygophora californica Woody-stemmed kelp, Stalked kelp, Walking kelp Ralfsia sp. Silvetia compressa Rockweed Stephanocystis osmundacea Page 1 of 4 Red Algae or Rhodophyta Genus/Species Common Name Ahnfeltia fastigiata Bushy Ahnfelt's seaweed Ahnfeltiopsis linearis Anisocladella pacifica Bangia sp. Bossiella dichotoma Bossiella -
Gastropods Morphometric Shell Landmarks Variation in Diyala River
International Journal of Applied Research 2015; 1(10): 660-664 ISSN Print: 2394-7500 ISSN Online: 2394-5869 Gastropods Morphometric Shell Landmarks variation Impact Factor: 5.2 IJAR 2015; 1(10): 660-664 in Diyala River Basin, Iraq www.allresearchjournal.com Received: 22-07-2015 Accepted: 24-08-2015 Khansaa S Farman, Emaduldeen A Almukhtar Khansaa S Farman Department of Biology, Abstract Collage of Science for Women, The present study was conducted to detected the variation in the shells of the Freshwater Gastropods Baghdad University Iraq. species of Diyala River Basin in Iraq. For this purpose the study area was divided to two sectors, Northern and Southern sectors. The morphological variation in the shells among common species to Emaduldeen A Almukhtar Northern and Southern sectors using a Geometric Morphometric technique were examined. Department of Biology, The most abundant species Theodoxus jordani, Melanopsis praemorsa, Lymnaea natalensis, and Collage of Science for Women, Planorbis gibbonsi were collected and their shells variation in the size and shape were measured. The Baghdad University Iraq. results showed significant difference in centroid size for M. praemorsa and L. natalensis while didn’t record in T. jordani and Poggibonsi. Also the study didn’t record significance variance of symmetrical for size and shape of the shell in all species. Key words: Geometric morphometric, Landmarks, Gastropods, Diyala river Introduction Diyala river is one of the most important tributaries of River Tigris, and is one of the main water bodies of Iraq. It runs through Iran and Iraq drains an area of 32600 km2 and about [2] 445 km. -
Examples of Sea Sponges
Examples Of Sea Sponges Startling Amadeus burlesques her snobbishness so fully that Vaughan structured very cognisably. Freddy is ectypal and stenciling unsocially while epithelial Zippy forces and inflict. Monopolistic Porter sailplanes her honeymooners so incorruptibly that Sutton recirculates very thereon. True only on water leaves, sea of these are animals Yellow like Sponge Oceana. Deeper dives into different aspects of these glassy skeletons are ongoing according to. Sponges theoutershores. Cell types epidermal cells form outer covering amoeboid cells wander around make spicules. Check how These Beautiful Pictures of Different Types of. To be optimal for bathing, increasing with examples of brooding forms tan ct et al ratios derived from other microscopic plants from synthetic sponges belong to the university. What is those natural marine sponge? Different types of sponges come under different price points and loss different uses in. Global Diversity of Sponges Porifera NCBI NIH. Sponges EnchantedLearningcom. They publish the outer shape of rubber sponge 1 Some examples of sponges are Sea SpongeTube SpongeVase Sponge or Sponge Painted. Learn facts about the Porifera or Sea Sponges with our this Easy mountain for Kids. What claim a course Sponge Acme Sponge Company. BG Silicon isotopes of this sea sponges new insights into. Sponges come across an incredible summary of colors and an amazing array of shapes. 5 Fascinating Types of what Sponge Leisure Pro. Sea sponges often a tube-like bodies with his tiny pores. Sponges The World's Simplest Multi-Cellular Creatures. Sponges are food of various nudbranchs sea stars and fish. Examples of sponges Answers Answerscom. Sponges info and games Sheppard Software. -
Seashore Pocket Guide
. y a B e e L d n a n i t r a M e b m o C , h t u o m n y L ) e v o b a ( . e m i t m e h t e v i g u o y f i e c i v e r c n e d d i h a m o r f t u o . a n i l l a r o c d n a e s l u d s a h c u s s d e e w a e s b a r C e l b i d E k u . v o g . k r a p l a n o i t a n - r o o m x e . w w w e r a t s a o c s ’ r o o m x E n o e f i l d l i w e r o h s a e s k c a b e v o m n e t f o l l i w s b a r c d n a h s i F . l l i t s y r e v g n i p e e k d e r r e v o c s i d n a c u o y s l o o p k c o r r o f k o o l o t s e c a l p e t i r u o v a f r u o f o e m o S , g n i h c t a w e m i t d n e p S . -
BROWN ALGAE [147 Species] (
CHECKLIST of the SEAWEEDS OF IRELAND: BROWN ALGAE [147 species] (http://seaweed.ucg.ie/Ireland/Check-listPhIre.html) PHAEOPHYTA: PHAEOPHYCEAE ECTOCARPALES Ectocarpaceae Acinetospora Bornet Acinetospora crinita (Carmichael ex Harvey) Kornmann Dichosporangium Hauck Dichosporangium chordariae Wollny Ectocarpus Lyngbye Ectocarpus fasciculatus Harvey Ectocarpus siliculosus (Dillwyn) Lyngbye Feldmannia Hamel Feldmannia globifera (Kützing) Hamel Feldmannia simplex (P Crouan et H Crouan) Hamel Hincksia J E Gray - Formerly Giffordia; see Silva in Silva et al. (1987) Hincksia granulosa (J E Smith) P C Silva - Synonym: Giffordia granulosa (J E Smith) Hamel Hincksia hincksiae (Harvey) P C Silva - Synonym: Giffordia hincksiae (Harvey) Hamel Hincksia mitchelliae (Harvey) P C Silva - Synonym: Giffordia mitchelliae (Harvey) Hamel Hincksia ovata (Kjellman) P C Silva - Synonym: Giffordia ovata (Kjellman) Kylin - See Morton (1994, p.32) Hincksia sandriana (Zanardini) P C Silva - Synonym: Giffordia sandriana (Zanardini) Hamel - Only known from Co. Down; see Morton (1994, p.32) Hincksia secunda (Kützing) P C Silva - Synonym: Giffordia secunda (Kützing) Batters Herponema J Agardh Herponema solitarium (Sauvageau) Hamel Herponema velutinum (Greville) J Agardh Kuetzingiella Kornmann Kuetzingiella battersii (Bornet) Kornmann Kuetzingiella holmesii (Batters) Russell Laminariocolax Kylin Laminariocolax tomentosoides (Farlow) Kylin Mikrosyphar Kuckuck Mikrosyphar polysiphoniae Kuckuck Mikrosyphar porphyrae Kuckuck Phaeostroma Kuckuck Phaeostroma pustulosum Kuckuck -
De Novo Draft Assembly of the Botrylloides Leachii Genome
bioRxiv preprint doi: https://doi.org/10.1101/152983; this version posted June 21, 2017. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 De novo draft assembly of the Botrylloides leachii genome 2 provides further insight into tunicate evolution. 3 4 Simon Blanchoud1#, Kim Rutherford2, Lisa Zondag1, Neil Gemmell2 and Megan J Wilson1* 5 6 1 Developmental Biology and Genomics Laboratory 7 2 8 Department of Anatomy, School of Biomedical Sciences, University of Otago, P.O. Box 56, 9 Dunedin 9054, New Zealand 10 # Current address: Department of Zoology, University of Fribourg, Switzerland 11 12 * Corresponding author: 13 Email: [email protected] 14 Ph. +64 3 4704695 15 Fax: +64 479 7254 16 17 Keywords: chordate, regeneration, Botrylloides leachii, ascidian, tunicate, genome, evolution 1 bioRxiv preprint doi: https://doi.org/10.1101/152983; this version posted June 21, 2017. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 18 Abstract (250 words) 19 Tunicates are marine invertebrates that compose the closest phylogenetic group to the 20 vertebrates. This chordate subphylum contains a particularly diverse range of reproductive 21 methods, regenerative abilities and life-history strategies. Consequently, tunicates provide an 22 extraordinary perspective into the emergence and diversity of chordate traits. Currently 23 published tunicate genomes include three Phlebobranchiae, one Thaliacean, one Larvacean 24 and one Stolidobranchian. To gain further insights into the evolution of the tunicate phylum, 25 we have sequenced the genome of the colonial Stolidobranchian Botrylloides leachii. -
On the Fauna of Corallina Officinalis L
T~' Lt CL i:cJ:> i \lvVl Le (/Vl k'>~tj ; U B. 1> ! "I't,:<A.t.>U-'> k' If'/, t S'(,-.'-c k' "L K~. /3<- r-~-0-l,\ 2 Cf/.y - I:.:i( li--re. J)O"l/l,,- \.-1,\_ (;,..-:' H._ c>'(, HOVEDFAGSOPPGAVE I MARIN ZOOLOGI T.IL MAT.EMAT lSK-NATJJRVIT.ENSKAP EL la. EMBETSEKSAMEN ON THE FAUNA OF CORALLINA OFFlCINALIS L.' by Are Dommasnes CONTENTS Page; ABSTRACT 1 INTRODUCTIOt-l 1 THE LOCALITIES 2 THE GROWTH TYPES OF CORALLINA OFFICINALIS 5 TEMPERATURE AND SALINITY 6 COLLECTION AND EXAMINATION OF THE SAMPLES 7 THE FAUNA 9 Foraminifera 9 Cnidaria 10 Turbellaria 10 Nemertini 10 Nematoda 10 Polychaeta 11 Harpacticoida 13 Ostracoda 13 Isopoda 14 Tanaidacea 16 Amphipoda 16 Decapoda 19 Insecta 20 Halacaridae 20 Pycnogonida 20 Gastropoda 20 Bivalvia 22 Bryozoa 24 Echinodermata 25 Ascidiacea 25 DISCUSSION 26 The size of the animals 26 Effects of the wave exposure 27 Food and feeding-biology 29 Predation from animals living outside the Corallina growth 33 SOME COMMENTS, A~D SUGGESTIONS FOR FUTURE RESEARCH ON THE FAUNA OF CORALLIlIJA OFFICINALIS 34 SUMJ.VIARY 36 ACKNOWLEDGEMENTS 37 REFERENCES 38 ABSTRACT The fauna of Corallina officinalis has been studied at three localities south of Bergen, Norway. A list of species is given. A distinct distribution pattern is shown for some species, and this is discussed with reference to the wave exposure. The feeding-biology of the fauna is also discussed and some suggestions are given for future research on the fauna of Corallina officinalis. -I NTRODUCT I01~ When this rese~rch work started, my intention was to find (1) which animals lived in the Qorallina growths (2) how the fauna varied with wave exposure (3) how the fauna varied with depth and (4) the seasonal variations during the year.