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Diversity and Community Structure of Pelagic Cnidarians in the Celebes and Sulu Seas, Southeast Asian Tropical Marginal Seas
Deep-Sea Research I 100 (2015) 54–63 Contents lists available at ScienceDirect Deep-Sea Research I journal homepage: www.elsevier.com/locate/dsri Diversity and community structure of pelagic cnidarians in the Celebes and Sulu Seas, southeast Asian tropical marginal seas Mary M. Grossmann a,n, Jun Nishikawa b, Dhugal J. Lindsay c a Okinawa Institute of Science and Technology Graduate University (OIST), Tancha 1919-1, Onna-son, Okinawa 904-0495, Japan b Tokai University, 3-20-1, Orido, Shimizu, Shizuoka 424-8610, Japan c Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka 237-0061, Japan article info abstract Article history: The Sulu Sea is a semi-isolated, marginal basin surrounded by high sills that greatly reduce water inflow Received 13 September 2014 at mesopelagic depths. For this reason, the entire water column below 400 m is stable and homogeneous Received in revised form with respect to salinity (ca. 34.00) and temperature (ca. 10 1C). The neighbouring Celebes Sea is more 19 January 2015 open, and highly influenced by Pacific waters at comparable depths. The abundance, diversity, and Accepted 1 February 2015 community structure of pelagic cnidarians was investigated in both seas in February 2000. Cnidarian Available online 19 February 2015 abundance was similar in both sampling locations, but species diversity was lower in the Sulu Sea, Keywords: especially at mesopelagic depths. At the surface, the cnidarian community was similar in both Tropical marginal seas, but, at depth, community structure was dependent first on sampling location Marginal sea and then on depth within each Sea. Cnidarians showed different patterns of dominance at the two Sill sampling locations, with Sulu Sea communities often dominated by species that are rare elsewhere in Pelagic cnidarians fi Community structure the Indo-Paci c. -
The Evolution of Siphonophore Tentilla for Specialized Prey Capture in the Open Ocean
The evolution of siphonophore tentilla for specialized prey capture in the open ocean Alejandro Damian-Serranoa,1, Steven H. D. Haddockb,c, and Casey W. Dunna aDepartment of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520; bResearch Division, Monterey Bay Aquarium Research Institute, Moss Landing, CA 95039; and cEcology and Evolutionary Biology, University of California, Santa Cruz, CA 95064 Edited by Jeremy B. C. Jackson, American Museum of Natural History, New York, NY, and approved December 11, 2020 (received for review April 7, 2020) Predator specialization has often been considered an evolutionary makes them an ideal system to study the relationships between “dead end” due to the constraints associated with the evolution of functional traits and prey specialization. Like a head of coral, a si- morphological and functional optimizations throughout the organ- phonophore is a colony bearing many feeding polyps (Fig. 1). Each ism. However, in some predators, these changes are localized in sep- feeding polyp has a single tentacle, which branches into a series of arate structures dedicated to prey capture. One of the most extreme tentilla. Like other cnidarians, siphonophores capture prey with cases of this modularity can be observed in siphonophores, a clade of nematocysts, harpoon-like stinging capsules borne within special- pelagic colonial cnidarians that use tentilla (tentacle side branches ized cells known as cnidocytes. Unlike the prey-capture apparatus of armed with nematocysts) exclusively for prey capture. Here we study most other cnidarians, siphonophore tentacles carry their cnidocytes how siphonophore specialists and generalists evolve, and what mor- in extremely complex and organized batteries (3), which are located phological changes are associated with these transitions. -
… Distr. GENERAL UNEP/CBD/RW/EBSA/WCAR/1/2
CBD Distr. GENERAL UNEP/CBD/RW/EBSA/WCAR/1/2 23 February 2012 ORIGINAL: ENGLISH WIDER CARIBBEAN AND WESTERN MID-ATLANTIC REGIONAL WORKSHOP TO FACILITATE THE DESCRIPTION OF ECOLOGICALLY OR BIOLOGICALLY SIGNIFICANT MARINE AREAS Recife, Brazil, 28 February –2 March 2012 COMPILATION OF SUBMISSIONS OF SCIENTIFIC INFORMATION TO DESCRIBE EBSAS IN THE WIDER CARIBBEAN AND WESTERN MID-ATLANTIC REGION Note by the Executive Secretary 1. The Executive Secretary is circulating herewith a compilation of submissions of scientific information to describe ecologically or biologically significant marine areas (EBSAs) in the Wider Caribbean and Western Mid-Atlantic region, submitted by Parties and organizations in response to notification 2012-001, dated 3 January 2012, for the information of participants in the Wider Caribbean and Western Mid-Atlantic Regional Workshop to Facilitate the Description of Ecologically or Biologically Significant Marine Areas, being convened by the Convention on Biological Diversity and hosted by the Government of Brazil in Recife, Brazil, from 28 February to 2 March 2012, in collaboration with the Caribbean Environment Programme (CEP), with financial support from the European Union. 2. This compilation consists of the following: (a) A list of submissions made by Parties and organizations. The original submissions are available athttp://www.cbd.int/doc/?meeting=RWEBSA-WCAR-01. The list is divided into two parts: the first table contains submissions of potential areas that meet EBSA criteria, most utilizing the template provided for that purpose in the above notification; the second consists of supporting documentation; and (b) A background document entitled "Data to inform the Wider Caribbean and Western Mid- Atlantic Regional Workshop to Facilitate the Description of Ecologically or Biologically Significant Marine Areas”, which was prepared by the Marine Geospatial Ecology Lab, Duke University, with financial support from the European Union, in support of the CBD Secretariat in its technical preparation for the above-mentioned regional workshop. -
A Preliminary Report on Expeditions Monsoon And
A Preliminary Report on Expeditions Monsoon and Lusiad 1960 - 1963 University of California, San Diego Scripps Institution of Oceanography Cruises to the Indian Ocean By The Members of the Expedition Edited by Robert L. Fisher S. I. O. Reference 64-19 ― i ― FOREWORD Field participation in the International Indian Ocean Expedition by scientists and research vessels of the University of California's Scripps Institution of Oceanography comprises three multi- program investigations: MONSOON (1960-1), LUSIAD (1962-3) and DODO (1964). All three expeditions, though first broadly outlined in 1959, lie within the cooperative international exploration of the Indian Ocean being sponsored by the Scientific Committee on Oceanic Research and UNESCO. Therefore, though original schedules have to date been met, the programs have in fact been influenced and modified by the plans, interests and findings of other agencies and laboratories, and direct participation by marine scientists, students and trainees from other areas has been welcomed. Although the final SIO IIOE cruise, DODO, is just underway, a preliminary report on some generalized results of the first two expeditions seems appropriate now, with the clear understanding that many conclusions stated here may indeed be premature. Final analyses, syntheses and results will appear in more specialized formal publications and in the proposed SCOR-sponsored atlases which eventually will summarize Indian Ocean Expedition findings. At Scripps Institution, it is customary to give names, rather than number designations, to the major expeditions. The 1960-1 investigation, 3 ½ months in the Indian Ocean, embraced the first SIO field work in the "monsoon seas". It was funded primarily by the Office of Naval Research of the Navy Department, with auxiliary support for personnel and special equipment from the Bureau of Ships and the National Science Foundation. -
First Record of Beaching Events for a Calycophoran Siphonophore: Abylopsis Tetragona (Otto, 1823) at the Strait of Gibraltar
Marine Biodiversity https://doi.org/10.1007/s12526-018-0926-1 SHORT COMMUNICATION First record of beaching events for a caLycophoran siphonophore: Abylopsis tetragona (Otto, 1823) at the Strait of GibraLtar Elena Guerrero1 & Karen Kienberger2 & Ana ViLLaescusa 3 & Josep-Maria GiLi1 & GabrieL Navarro2 & Laura Prieto 2 Received: 26 March 2018 / Revised: 2 August 2018 / Accepted: 8 October 2018 # Senckenberg GeseLLschaft für Naturforschung 2018 Abstract Two beaching events of the calycophoran siphonophore Abylopsis tetragona (Otto, 1823) were observed in two different areas of the Strait of Gibraltar during the cold season. The first was discovered on November 2014, on Getares Beach (Algeciras Bay, Mediterranean part of the Strait of Gibraltar), where more than 700 colonies were found deposited along the tideline. The second event was discovered on January 2015, on Paloma Baja Beach (Tarifa, Atlantic part of the Strait of Gibraltar) where an average density of 170 colonies m−2 was spread along the seashore. Both events seemed to be promoted by strong easterly winds, preceded by upwelling episodes that may have concentrated high densities of the siphonophore in superficial layers. This study represents the first report of a calycophoran siphonophore mass stranding. The records were made thanks to citizen science and jellyfish outreach at secondary schools (PERSEUS@school initiative), illustrating the importance of citizen science projects in observing natural phenomena. We consider the monitoring and recording of cnidarian stranding events especially important in highly productive and biologically active areas such as the Strait of Gibraltar. Keywords Mass stranding . Gelatinous zooplankton . Citizen science . Outreach . Secondary schools Introduction abundant epipelagic siphonophore inhabitant of temperate and warm waters of the Atlantic, Pacific and Indican oceans Siphonophores are long pelagic colonial hydrozoans and the Mediterranean Sea (Alvariño 1971; Mapstone 2014). -
CNIDARIA Corals, Medusae, Hydroids, Myxozoans
FOUR Phylum CNIDARIA corals, medusae, hydroids, myxozoans STEPHEN D. CAIRNS, LISA-ANN GERSHWIN, FRED J. BROOK, PHILIP PUGH, ELLIOT W. Dawson, OscaR OcaÑA V., WILLEM VERvooRT, GARY WILLIAMS, JEANETTE E. Watson, DENNIS M. OPREsko, PETER SCHUCHERT, P. MICHAEL HINE, DENNIS P. GORDON, HAMISH J. CAMPBELL, ANTHONY J. WRIGHT, JUAN A. SÁNCHEZ, DAPHNE G. FAUTIN his ancient phylum of mostly marine organisms is best known for its contribution to geomorphological features, forming thousands of square Tkilometres of coral reefs in warm tropical waters. Their fossil remains contribute to some limestones. Cnidarians are also significant components of the plankton, where large medusae – popularly called jellyfish – and colonial forms like Portuguese man-of-war and stringy siphonophores prey on other organisms including small fish. Some of these species are justly feared by humans for their stings, which in some cases can be fatal. Certainly, most New Zealanders will have encountered cnidarians when rambling along beaches and fossicking in rock pools where sea anemones and diminutive bushy hydroids abound. In New Zealand’s fiords and in deeper water on seamounts, black corals and branching gorgonians can form veritable trees five metres high or more. In contrast, inland inhabitants of continental landmasses who have never, or rarely, seen an ocean or visited a seashore can hardly be impressed with the Cnidaria as a phylum – freshwater cnidarians are relatively few, restricted to tiny hydras, the branching hydroid Cordylophora, and rare medusae. Worldwide, there are about 10,000 described species, with perhaps half as many again undescribed. All cnidarians have nettle cells known as nematocysts (or cnidae – from the Greek, knide, a nettle), extraordinarily complex structures that are effectively invaginated coiled tubes within a cell. -
Distribution of Planktonic Cnidarian Sin Response to South Atlantic Central Water Intrusion in the South Brazilian Bight
Universidade de São Paulo Biblioteca Digital da Produção Intelectual - BDPI Departamento de Oceanografia Biológica - IO/IOB Artigos e Materiais de Revistas Científicas - IO/IOB 2014-03-18 Distribution of planktonic cnidarian sin response to South Atlantic Central Water intrusion in the South Brazilian Bight Continental Shelf Research, v. 89, p. 93-102, 2014 http://www.producao.usp.br/handle/BDPI/48819 Downloaded from: Biblioteca Digital da Produção Intelectual - BDPI, Universidade de São Paulo Continental Shelf Research 89 (2014) 93–102 Contents lists available at ScienceDirect Continental Shelf Research journal homepage: www.elsevier.com/locate/csr Research papers Distribution of planktonic cnidarians in response to South Atlantic Central Water intrusion in the South Brazilian Bight Miodeli Nogueira Júnior a,n, Frederico P. Brandini b, Juan C.U. Codina a a Programa de Pós-Graduação em Zoologia, Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, Paraná 81531-980, Brazil b Instituto Oceanográfico, Universidade de São Paulo, Praça do Oceanográfico 191, Cidade Universitária, São Paulo, SP 05508-120, Brazil article info abstract Article history: Five oceanographic cruises were made between November 2005 and June 2006, sampling a cross-shelf Received 21 January 2013 transect off the South Brazilian Bight (SBB; 261460S) to follow the seasonal development of the South Received in revised form Atlantic Central Water (SACW) intrusion over the shelf and its influence on the assemblage of planktonic 26 February 2014 cnidarians. An onshore wind-driven bottom intrusion of the SACW was clearly perceptible, reaching the Accepted 28 February 2014 coast in January. From March onward, the SACW influence was gradually displaced seaward due to wind Available online 18 March 2014 and tidal mixing. -
Guide Welcome Irie Isle
GUIDE WELCOME IRIE ISLE Seven Mile Beach Seven Mile Beach KNOWN FOR ITS STUNNING BEAUTY, Did you know? The traditional cooking technique FRIENDLY PEOPLE, LAND OF WOOD AND WATER known as jerk is said to have been invented by the island’s Maroons, VIBRANT CULTURE or runaway slaves. AND RICH HISTORY, Jamaica is a destination so dynamic and multifaceted you could visit hundreds of Negril, Frenchman’s Cove in Portland, Treasure Beach on the South Coast or the times and have a unique experience every single time. unique Dunn’s River Falls and Beach in Ocho Rios, there’s a beach for everyone. THERE’S NO BETTER Home of the legendary Bob Marley, arguably reggae’s most iconic and globally But if lounging on the sand all day is not your style, a visit to Jamaica may be recognised face, the island’s most popular musical export is an eclectic mix of just what the doctor ordered. With hundreds of fitness facilities and countless WORD TO DESCRIBE infectious beats and enchanting — and sometimes scathing — lyrics that can be running and exercise groups, the global thrust towards health and wellness has THE JAMAICAN heard throughout the island. The music is also celebrated through annual festivals spawned annual events such as the Reggae Marathon and the Kingston City such as Reggae Sumfest and Rebel Salute, where you could also indulge in Run. The get-fit movement has also influenced the creation of several health and EXPERIENCE Jamaica’s renowned culinary treats. wellness bars, as well as spa, fitness and yoga retreats at upscale resorts. -
Identification and Description of Chitin and Its Genes in Cnidaria
Chitin the Good Fight – Identification and Description of Chitin and Its Genes in Cnidaria Lauren Elizabeth Vandepas A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy University of Washington 2018 Reading Committee: Chris T. Amemiya, Chair William E. Browne Adam Lacy-Hulbert Program Authorized to Offer Degree: Biology 1 | P a g e © Copyright 2018 Lauren E. Vandepas 2 | P a g e University of Washington Abstract Chitin the Good Fight – Identification and Description of Chitin and Its Genes in Cnidaria Lauren Elizabeth Vandepas Chair of the Supervisory Committee: Chris T. Amemiya Department of Biology This dissertation explores broad aspects of chitin biology in Cnidaria, with the aim of incorporating glycobiology with evolution and development. Chitin is the second-most abundant biological polymer on earth and is most commonly known in metazoans as a structural component of arthropod exoskeletons. This work seeks to determine whether chitin is more broadly distributed within early-diverging metazoans than previously believed, and whether it has novel non-structural applications in cnidarians. The Cnidaria (i.e., medusae, corals, sea anemones, cubomedusae, myxozoans) comprises over 11,000 described species exhibiting highly diverse morphologies, developmental programs, and ecological niches. Chapter 1 explores the distribution of chitin synthase (CHS) genes across Cnidaria. These genes are present in all classes and are expressed in life stages or taxa that do not have any reported chitinous structures. To further elucidate the biology of chitin in cnidarian soft tissues, in Chapters 2 and 3 I focus on the model sea anemone Nematostella vectensis, which has three chitin synthase genes – each with a unique suite of domains. -
Redalyc.Distribution of Planktonic Cnidarian Assemblages in the Southern Gulf of Mexico, During Autumn
Revista Chilena de Historia Natural ISSN: 0716-078X [email protected] Sociedad de Biología de Chile Chile Martell-Hernández, Luis F; Sánchez-Ramírez, Marina; Ocaña-Luna, Alberto Distribution of planktonic cnidarian assemblages in the southern Gulf of Mexico, during autumn Revista Chilena de Historia Natural, vol. 87, 2014, pp. 1-11 Sociedad de Biología de Chile Santiago, Chile Available in: http://www.redalyc.org/articulo.oa?id=369944183028 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Martell-Hernández et al. Revista Chilena de Historia Natural 2014, 87:18 http://www.revchilhistnat.com/content/87/1/18 RESEARCH Open Access Distribution of planktonic cnidarian assemblages in the southern Gulf of Mexico, during autumn Luis F Martell-Hernández1,2, Marina Sánchez-Ramírez1* and Alberto Ocaña-Luna1 Abstract Background: Despite their ecological, economic and medical relevance, very little information is available on the distribution of planktonic cnidarians, this being particularly true for some regions of the ocean such as the Gulf of Mexico. In fact, the effect of locally important oceanographic features such as the offshore autumnal transport on the distribution of planktonic cnidarians has long been overlooked in this region. Because of this, the present study aimed to analyse the spatial patterns of planktonic cnidarian assemblages in the southern Gulf of Mexico during the autumn of 1998, when particularly intense conditions of convergence, offshore water transportation and productivity were recorded. -
Resu Its of Troll Fish Ing Explorations in the Caribbean
Sta- Dominant Sta· Dominant Sta- Dominant tlon Buckets species tlon Buckets Species tlon Buckets Species Martinique Tnnldad Fort-de-France 6 335 AN Chaguaramas Bay 11 1,055 .0 SA , TH Port Antonio 40 SI Port Royal Grande Anses d 'Arlet 4 350 SA , SI , Chupara Bay 4 2470 SA 1 100 AN RS Port 01 Spain Ha rbor 3 500 PL Port Royal Cays 3 1020 DH , SI Port Royal Mangrove St .-Pierre 2 130 RS La s Cuevas Bay 60 PL 45 0 AN St Lucia Lampara Net Dominican Republic Anse ChOiseul 30.0 PL, TH Jamaica Bah ia de Semana 305 AN Caralbe POint 5.0 SA East Kingston 2 520 AN Venezuela Castnes Harbor 0.5 AN Li me Cay 150 SI Islas Los Roques 870 SI Gros Islet Bay 1 05 Mi xed Port Royal 0 CuraGao Mangot Bay 3 145 AN Domin ica n Republic Pl aza Abao 5 0 RS Pet it Tr ou 1 0 Bah ia de Ocoa 2 1250 PL , TH Portanare Bay 35 SI Roseau Bay 3 88 5 SA , TH Boca del Yuma 0 I AN = anchovy (Engraulldae) Soulnere Bay 1 25.5 SI Saona Island 0 DH = dwarf herring (Jenklnsla) Vleux Fort 5 13.5 TH Jamaica PL = pilchards (Harengula) Tobago lime Cay 1 120 DH RS = round scad (Decapterus) Great Courland Bay 10 Long Ba y 1 80 AN SA = sardine (Sardlneita) Man-ol-War Bay 890 RS Negr" Harbor 2 2 .0 AN SI = sllversldes (Athennld ae) Rockly Bay 30 PL Pigeon Island 700 DH TH = thread herring (O p isthonema) MFR Paper 1084 From Manne Flshenes Review, Vol. -
Planktonic Cnidarians in a Cold-Core Ring in the Gulf of Mexico
Anales del Instituto de Biología, Universidad Nacional Autónoma de México, Serie Zoología 73(1): 19-36. 2002 Planktonic cnidarians in a cold-core ring in the Gulf of Mexico E. SUÁREZ-MORALES* R. GASCA* L. SEGURA-PUERTAS** D.C. BIGGS*** Resumen. Se analizó la composición específica y la abundancia de medusas y sifonóforos recolectados en marzo 1993 al cruzar un anillo ciclónico de núcleo frío en el Golfo de México (CCR por sus siglas en inglés). Las muestras se obtuvieron mediante arrastres oblicuos (de 100m a la superficie) con una red de plancton. Se encontraron 12 especies de medusas cuya abundancia global fue similar dentro y fuera del CCR. Sin embargo, las dos especies que en conjunto conformaron más del 66% de las medusas dentro del CCR (Nausithoë punctata y Liriope tetraphylla) fueron raras fuera de éste. Las más comunes dentro del CCR (en conjunto >66% de las medusas fuera del CCR) no se encontraron o fueron raras dentro del CCR. Los sifonóforos estuvieron representados por 25 especies; las siete más abundantes dentro del CCR lo fueron también fuera. Debido a los patrones de migración día/noche, se encontró que la abundancia nocturna de sifonóforos es consistentemente mayor en el estrato de los primeros 100m de profundidad. El análisis de agrupamiento confirmó estas diferencias en la composición y abundancia de los sifonóforos entre las muestras diurnas y las nocturnas y entre las nocturnas dentro y fuera del CCR. No obstante que fueron poco comunes, dentro del CCR se encontraron dos especies relativamente raras de Lensia y de Ceratocymba y fuera del CCR, otras dos de Lensia,una tercera de Ceratocymba, y otras cuatro especies, también raras.