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New Zealand's Genetic Diversity
1.13 NEW ZEALAND’S GENETIC DIVERSITY NEW ZEALAND’S GENETIC DIVERSITY Dennis P. Gordon National Institute of Water and Atmospheric Research, Private Bag 14901, Kilbirnie, Wellington 6022, New Zealand ABSTRACT: The known genetic diversity represented by the New Zealand biota is reviewed and summarised, largely based on a recently published New Zealand inventory of biodiversity. All kingdoms and eukaryote phyla are covered, updated to refl ect the latest phylogenetic view of Eukaryota. The total known biota comprises a nominal 57 406 species (c. 48 640 described). Subtraction of the 4889 naturalised-alien species gives a biota of 52 517 native species. A minimum (the status of a number of the unnamed species is uncertain) of 27 380 (52%) of these species are endemic (cf. 26% for Fungi, 38% for all marine species, 46% for marine Animalia, 68% for all Animalia, 78% for vascular plants and 91% for terrestrial Animalia). In passing, examples are given both of the roles of the major taxa in providing ecosystem services and of the use of genetic resources in the New Zealand economy. Key words: Animalia, Chromista, freshwater, Fungi, genetic diversity, marine, New Zealand, Prokaryota, Protozoa, terrestrial. INTRODUCTION Article 10b of the CBD calls for signatories to ‘Adopt The original brief for this chapter was to review New Zealand’s measures relating to the use of biological resources [i.e. genetic genetic resources. The OECD defi nition of genetic resources resources] to avoid or minimize adverse impacts on biological is ‘genetic material of plants, animals or micro-organisms of diversity [e.g. genetic diversity]’ (my parentheses). -
Akatore Study Published in Earth and Planetary
Earth and Planetary Science Letters 520 (2019) 18–25 Contents lists available at ScienceDirect Earth and Planetary Science Letters www.elsevier.com/locate/epsl Kelp DNA records late Holocene paleoseismic uplift of coastline, southeastern New Zealand ∗ Elahe Parvizi a, Dave Craw b, , Jonathan M. Waters a a Zoology Department, University of Otago, PO Box 56, Dunedin 9054, New Zealand b Geology Department, University of Otago, PO Box 56, Dunedin 9054, New Zealand a r t i c l e i n f o a b s t r a c t Article history: Holocene paleoseismic activity on the Akatore Fault zone, southeastern New Zealand, has caused uplift Received 20 January 2019 of a 23 km section of coastline by several metres. Prominent relict shoreline terraces are preserved at Received in revised form 4 May 2019 6 m and 3 m above the present sea level, and the latter terrace was formed 1000-1400 yrs BP. The Accepted 22 May 2019 main fault strand farther inland has 6 mof late Holocene vertical offset, but the relationships between Available online xxxx coastal offsets and fault offsets are not understood. There is no preserved geological evidence on the Editor: J.-P. Avouac coastline to distinguish between incremental uplift (e.g., numerous centimetre-scale events) and major, Keywords: metre-scale, uplift events: a distinction that is important for evaluating regional paleoseismicity. We have paleoseismology used genetic characterisation of populations of live kelp, Durvillaea antarctica growing along the shoreline neotectonics to investigate whether or not there has been a catastrophic uplift event, greater than the two metre tidal fault range, that was sufficient to extirpate intertidal kelp populations. -
E Urban Sanctuary Algae and Marine Invertebrates of Ricketts Point Marine Sanctuary
!e Urban Sanctuary Algae and Marine Invertebrates of Ricketts Point Marine Sanctuary Jessica Reeves & John Buckeridge Published by: Greypath Productions Marine Care Ricketts Point PO Box 7356, Beaumaris 3193 Copyright © 2012 Marine Care Ricketts Point !is work is copyright. Apart from any use permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission of the publisher. Photographs remain copyright of the individual photographers listed. ISBN 978-0-9804483-5-1 Designed and typeset by Anthony Bright Edited by Alison Vaughan Printed by Hawker Brownlow Education Cheltenham, Victoria Cover photo: Rocky reef habitat at Ricketts Point Marine Sanctuary, David Reinhard Contents Introduction v Visiting the Sanctuary vii How to use this book viii Warning viii Habitat ix Depth x Distribution x Abundance xi Reference xi A note on nomenclature xii Acknowledgements xii Species descriptions 1 Algal key 116 Marine invertebrate key 116 Glossary 118 Further reading 120 Index 122 iii Figure 1: Ricketts Point Marine Sanctuary. !e intertidal zone rocky shore platform dominated by the brown alga Hormosira banksii. Photograph: John Buckeridge. iv Introduction Most Australians live near the sea – it is part of our national psyche. We exercise in it, explore it, relax by it, "sh in it – some even paint it – but most of us simply enjoy its changing modes and its fascinating beauty. Ricketts Point Marine Sanctuary comprises 115 hectares of protected marine environment, located o# Beaumaris in Melbourne’s southeast ("gs 1–2). !e sanctuary includes the coastal waters from Table Rock Point to Quiet Corner, from the high tide mark to approximately 400 metres o#shore. -
Localised Population Collapse of the Invasive Brown Alga, Undaria Pinnatifida: Twenty Years of Monitoring on Wellington’S South Coast
Localised population collapse of the invasive brown alga, Undaria pinnatifida: Twenty years of monitoring on Wellington’s south coast By Cody Lorkin A thesis submitted to Victoria University of Wellington in partial fulfilment for the requirements for the degree of Master of Science in Marine Biology Victoria University of Wellington 2019 Abstract Invasive species pose a significant threat to marine environments around the world. Monitoring and research of invasive species is needed to provide direction for management programmes. This thesis is a continuation of research conducted on the invasive alga Undaria pinnatifida following its discovery on Wellington’s south coast in 1997. By compiling the results from previous monitoring surveys (1997- 2000 and 2008) and carrying out additional seasonal surveys in 2018, I investigate the distribution and spread of U. pinnatifida on Wellington’s south coast, how this may have changed over time and what impacts it may have had on native macroalgal and invertebrate grazer communities. Intertidal macroalgal composition and U. pinnatifida abundance was recorded on fifteen occasions between 1997 and 2018 at two sites at Island Bay and two sites at Owhiro Bay. In addition, the subtidal abundance of six invertebrate grazers was recorded eight times within the same sampling period. Microtopography was also measured at each site to determine if topography had an influence on macroalgal composition. From 1997 to 2000 U. pinnatifida abundance gradually increased per year, but its spread remained localised to Island Bay. In 2008 U. pinnatifida had spread westward to Owhiro Bay where it was highly abundant. However, in 2018 no U. pinnatifida was recorded at any of the sites indicating a collapse of the invasion front. -
The Halogenated Metabolism of Brown Algae
The Halogenated Metabolism of Brown Algae (Phaeophyta), Its Biological Importance and Its Environmental Significance Stéphane La Barre, Philippe Potin, Catherine Leblanc, Ludovic Delage To cite this version: Stéphane La Barre, Philippe Potin, Catherine Leblanc, Ludovic Delage. The Halogenated Metabolism of Brown Algae (Phaeophyta), Its Biological Importance and Its Environmental Significance. Marine drugs, MDPI, 2010, 8, pp.988. hal-00987044 HAL Id: hal-00987044 https://hal.archives-ouvertes.fr/hal-00987044 Submitted on 5 May 2014 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Mar. Drugs 2010, 8, 988-1010; doi:10.3390/md8040988 OPEN ACCESS Marine Drugs ISSN 1660-3397 www.mdpi.com/journal/marinedrugs Review The Halogenated Metabolism of Brown Algae (Phaeophyta), Its Biological Importance and Its Environmental Significance Stéphane La Barre 1,2,*, Philippe Potin 1,2, Catherine Leblanc 1,2 and Ludovic Delage 1,2 1 Université Pierre et Marie Curie-Paris 6, UMR 7139 Végétaux marins et Biomolécules, Station Biologique F-29682, Roscoff, France; E-Mails: [email protected] (P.P.); [email protected] (C.L.); [email protected] (L.D.) 2 CNRS, UMR 7139 Végétaux marins et Biomolécules, Station Biologique F-29682, Roscoff, France * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +33-298-292-361; Fax: +33-298-292-385. -
Masters Thesis
Phenological, physiological, and ecological factors affecting the epiphyte Notheia anomala and its obligate host Hormosira banksii A thesis submitted in partial fulfilment of the requirements for the degree of Master of Science in Biology at the School of Biological Sciences University of Canterbury New Zealand by Isis Hayrunisa Metcalfe 2017 Table of Contents I Table of Contents Table of Contents ..................................................................................................................... I List of Figures .......................................................................................................................... V List of Tables ........................................................................................................................... X Acknowledgements ............................................................................................................ XIII Abstract ................................................................................................................................ XIV Chapter One - General Introduction ..................................................................................... 1 1.1. Introduction ................................................................................................................. 2 1.1.1. Epiphytism ........................................................................................................... 2 1.1.2. Marine epiphytes ................................................................................................. -
The Influence of Canopy Cover on the Ecological Function of a Key Autogenic Ecosystem Engineer
diversity Article The Influence of Canopy Cover on the Ecological Function of A Key Autogenic Ecosystem Engineer Jacqueline B. Pocklington 1,2,*, Michael J. Keough 2, Tim D. O’Hara 1 and Alecia Bellgrove 3 1 Department of Marine Invertebrates, Museum Victoria, Carlton, VIC 3053, Australia; [email protected] 2 School of BioSciences, University of Melbourne, Parkville, VIC 3010, Australia; [email protected] 3 School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Warrnambool Campus, PO Box 423, Warrnambool, VIC 3280, Australia; [email protected] * Correspondence: [email protected] Received: 8 April 2019; Accepted: 15 May 2019; Published: 17 May 2019 Abstract: Intertidal fucoid algae can function as ecosystem engineers across temperate marine regions. In this investigation, we assessed the function of the alga dominating rocky reefs in temperate Australia and New Zealand, Hormosira banksii. Invertebrate and algal species assemblages were examined within areas of full H. banksii canopy, areas where it was naturally patchy or absent (within its potential range on the shore) and areas where the intact canopy was experimentally disturbed. Differences in species assemblages were detected between areas with natural variation in H. banksii cover (full, patchy, negligible), with defined species associated with areas of full cover. Differences were also detected between experimentally manipulated and naturally patchy areas of canopy cover. Species assemblages altered in response to canopy manipulations and did not recover even twelve months after initial sampling. Both light intensity and temperature were buffered by full canopies compared to patchy canopies and exposed rock. This study allows us to predict the consequences to the intertidal community due to the loss of canopy cover, which may result from a range of disturbances such as trampling, storm damage, sand burial and prolonged exposure to extreme temperature, and further allow for improved management of this key autogenic ecosystem engineer. -
Gas Composition of Developing Pneumatocysts in Bull Kelp Nereocystis Luetkeana (Phaeophyceae)1
J. Phycol. 56, 1367–1372 (2020) © 2020 Phycological Society of America DOI: 10.1111/jpy.13037-19-219 NOTE GAS COMPOSITION OF DEVELOPING PNEUMATOCYSTS IN BULL KELP NEREOCYSTIS LUETKEANA (PHAEOPHYCEAE)1 Lauran M. Liggan ,2 and Patrick T. Martone Department of Botany and Biodiversity Research Centre, University of British Columbia, 3529-6270 University Blvd, Vancouver, BC V6T 1Z4, Canada The subtidal kelp Nereocystis luetkeana (hereafter The bull kelp Nereocystis luetkeana (hereafter Nereo- Nereocystis) maintains an upright stature by producing a cystis) builds unique subtidal forests in the Northeast single gas-filled float (pneumatocyst) that provides Pacific by having a singular gas-filled float called a buoyancy. The ability of Nereocystis pneumatocysts to pneumatocyst, which enables the kelp’s flexible thal- inflate with gas underwater is peculiar, and the gas lus to remain upright and vertical in the water col- composition of pneumatocysts has been the topic of umn (Arzee et al. 1985). The ability of this seaweed several studies over the last 100 years. Past studies of to create an air-tight reservoir and inflate underwa- pneumatocyst gases only examined large sporophytes, ter is remarkable, and the gas composition of Nereo- leaving open questions about the origins of these gases cystis pneumatocysts has been the topic of several and how gas composition may change during studies during the first half of the 20th century (Frye development. In this study, we use developmental time et al. 1915, Langdon 1917, Langdon and Gailey as a means to understand the origin and physiological 1920, Rigg and Henry 1935, Rigg and Swain 1941). mechanisms that give rise to different gases within Past studies found that 20–25% of gas sampled from ~ Nereocystis pneumatocysts. -
Impacts of Altered Physical and Biotic Conditions in Rocky Intertidal Systems: Implications for the Structure and Functioning of Complex Macroalgal Assemblages
Impacts of altered physical and biotic conditions in rocky intertidal systems: implications for the structure and functioning of complex macroalgal assemblages A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at the University of Canterbury, New Zealand Tommaso Alestra 2014 Abstract Complex biogenic habitats created by large canopy-forming macroalgae on intertidal and shallow subtidal rocky reefs worldwide are increasingly affected by degraded environmental conditions at local scales and global climate-driven changes. A better understanding of the mechanisms underlying the impacts of complex suites of anthropogenic stressors on algal forests is essential for the conservation and restoration of these habitats and of their ecological, economic and social values. This thesis tests physical and biological mechanisms underlying the impacts of different forms of natural and human-related disturbance on macroalgal assemblages dominated by fucoid canopies along the east coast of the South Island of New Zealand. A field removal experiment was initially set up to test assemblage responses to mechanical perturbations of increasing severity, simulating the impacts of disturbance agents affecting intertidal habitats such as storms and human trampling. Different combinations of assemblage components (i.e., canopy, mid-canopy and basal layer) were selectively removed, from the thinning of the canopy to the destruction of the entire assemblage. The recovery of the canopy-forming fucoids Hormosira banksii and Cystophora torulosa was affected by the intensity of the disturbance. For both species, even a 50% thinning had impacts lasting at least eighteen months, and recovery trajectories were longer following more intense perturbations. Independently of assemblage diversity and composition at different sites and shore heights, the recovery of the canopy relied entirely on the increase in abundance of these dominant fucoids in response to disturbance, indicating that functional redundancy is limited in this system. -
The Ecology of Chemical Defence in a Filamentous
THE ECOLOGY OF CHEMICAL DEFENCE IN A FILAMENTOUS MARINE RED ALGA NICHOLAS A. PAUL A thesis submitted to the University of New South Wales for the degree of Doctor of Philosophy July 2006 i ACKNOWLEDGEMENTS··························································································································· iii CHAPTER 1. GENERAL INTRODUCTION ..........................................................................1 NATURAL PRODUCTS CHEMISTRY OF MACROALGAE ...............................................................2 THE RED ALGAE ........................................................................................................................2 ECOLOGICAL ROLES OF SECONDARY METABOLITES ................................................................3 i) Chemical mediation of interactions with herbivores ........................................................3 ii) Chemical mediation of interactions with fouling organisms ............................................4 ULTRASTRUCTURE OF SPECIALISED CELLS AND STRUCTURES.................................................5 RESOURCE ALLOCATION TO SECONDARY METABOLITE PRODUCTION.....................................6 THESIS AIMS ..............................................................................................................................7 CHAPTER 2. CHEMICAL DEFENCE AGAINST BACTERIA IN ASPARAGOPSIS ARMATA: LINKING STRUCTURE WITH FUNCTION.......................................................9 INTRODUCTION ..........................................................................................................................9 -
A Quantitative Study of the Patterns of Morphological Variation Within Hormosira Banksii (Turner) Decaisne (Fucales: Phaeophyta) in South-Eastern Australia
Journal of Experimental Marine Biology and Ecology, L 225 (1998) 285±300 A quantitative study of the patterns of morphological variation within Hormosira banksii (Turner) Decaisne (Fucales: Phaeophyta) in south-eastern Australia Peter J. Ralph* , David A. Morrison, Andrew Addison Department of Environmental Biology and Horticulture, University of Technology Sydney, Westbourne St., Gore Hill, NSW 2065, Australia Received 26 March 1997; received in revised form 8 September 1997; accepted 12 September 1997 Abstract Hormosira banksii shows a considerable degree of morphological variability throughout its range in south-eastern Australia, apparently in relation to the local habitat, and there have been several previous qualitative attempts to categorize this variation by recognizing ecoforms. From our quantitative morphometric analyses of plants from 21 sites covering 300 km of coastline in south-eastern Australia, using multiple discriminant function analysis based on seven vesicle characteristics (measuring size and shape), there is very little evidence of intergrading forms. The morphological variation is not multivariately continuous, as has been previously suggested, although each individual attribute does show more-or-less continuous variation, and the mor- phological variation is not a simple re¯ection of habitat but re¯ects more complex microhabitat relationships. The morphological forms that we recognize are multivariate, and thus all of the attributes need to be considered. In particular, volume (or surface area:volume ratio) is usually a very good discriminator between groups, indicating that both size and shape are important for de®ning the groups. We recognize two main phenotypically distinct groups, comprising plants from sheltered estuarine situations and those from exposed marine rock platforms. -
Macroalgae (Seaweeds)
Published July 2008 Environmental Status: Macroalgae (Seaweeds) © Commonwealth of Australia 2008 ISBN 1 876945 34 6 Published July 2008 by the Great Barrier Reef Marine Park Authority This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from the Great Barrier Reef Marine Park Authority. Requests and inquiries concerning reproduction and rights should be addressed to the Director, Science, Technology and Information Group, Great Barrier Reef Marine Park Authority, PO Box 1379, Townsville, QLD 4810. The opinions expressed in this document are not necessarily those of the Great Barrier Reef Marine Park Authority. Accuracy in calculations, figures, tables, names, quotations, references etc. is the complete responsibility of the authors. National Library of Australia Cataloguing-in-Publication data: Bibliography. ISBN 1 876945 34 6 1. Conservation of natural resources – Queensland – Great Barrier Reef. 2. Marine parks and reserves – Queensland – Great Barrier Reef. 3. Environmental management – Queensland – Great Barrier Reef. 4. Great Barrier Reef (Qld). I. Great Barrier Reef Marine Park Authority 551.42409943 Chapter name: Macroalgae (Seaweeds) Section: Environmental Status Last updated: July 2008 Primary Author: Guillermo Diaz-Pulido and Laurence J. McCook This webpage should be referenced as: Diaz-Pulido, G. and McCook, L. July 2008, ‘Macroalgae (Seaweeds)’ in Chin. A, (ed) The State of the Great Barrier Reef On-line, Great Barrier Reef Marine Park Authority, Townsville. Viewed on (enter date viewed), http://www.gbrmpa.gov.au/corp_site/info_services/publications/sotr/downloads/SORR_Macr oalgae.pdf State of the Reef Report Environmental Status of the Great Barrier Reef: Macroalgae (Seaweeds) Report to the Great Barrier Reef Marine Park Authority by Guillermo Diaz-Pulido (1,2,5) and Laurence J.