The Mediterranean deep-water kelp Laminaria rodriguezii is an endangered species in the Adriatic Sea

Ante Žuljevic´; Akira F. Peters; Vedran Nikolic; Boris  Antolic; Marija  Despalatovic; Ivan  Cvitkovic´; Igor  Isajlovic; Hrvoje Mihanovic; Slavica Matijevic´; Dawn Margaret Shewring; Simonepietro Canese; Christos Katsaros; Frithjof C Kuepper

doi:10.1007/s00227-016-2821-2

The Mediterranean deep-water kelp Laminaria rodriguezii is an endangered species in the Adriatic Sea

Ante Žuljevic´, Akira F. Peters, Vedran Nikolic, Boris Antolic, Marija Despalatovic, Ivan Cvitkovic´, Igor Isajlovic, Hrvoje Mihanovic, Slavica Matijevic´, Dawn Margaret Shewring, Simonepietro Canese, Christos Katsaros, Frithjof C Kuepper

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Abstract

Deep-water kelps are little-known large brown algae occurring close to the lower limit of photosynthetic life in the sea. This study compares historical and recent records of the deep-water Mediterranean kelp Laminaria rodriguezii in the Adriatic Sea. Historical records include data from herbarium collections and trawling fishery expeditions in the mid-twentieth century, while recent data comprise records of the last 17 years from MEDITS expeditions, ROV surveys of historical kelp locations, benthic surveys and records by fishermen. Altogether, these findings demonstrate that the Adriatic population of L. rodriguezii has suffered a decline of more than 85 % of its historical range and is now present only around the small offshore island of Palagruža. Bottom trawling activities are presumably responsible for the disappearance elsewhere. We propose to classify L. rodriguezii as “Endangered” in the Adriatic Sea under IUCN criteria B1ab(i,iii,iv), ver 3.1. Oceanographic characteristics of the habitat suggest that besides high water transparency, presence of North Adriatic Dense Water with both strong currents and stable low temperatures of around 14 °C are essential oceanographic factors for the development of L. rodriguezii in the Central Adriatic. The origin of cold water thus differs from that at upwelling sites permitting populations of tropical deep-water kelps. The phylogenetic position of L. rodriguezii is so far unknown. DNA sequences from nuclear and cytoplasmic markers of two thalli from Croatia and the western Mediterranean confirmed that L. rodriguezii is a member of the Laminariaceae and most closely related to L. ochroleuca, L. pallida and the Brazilian deep-water kelp L. abyssalis.

Original language	English
Article number	69
Journal	Marine Biology
Volume	163
Early online date	14 Mar 2016
DOIs	https://doi.org/10.1007/s00227-016-2821-2
Publication status	Published - Apr 2016

Bibliographical note

Acknowledgments Thanks are due to Klaus Lüning for a gametophyte
culture of L. abyssalis, and to Britta Schaffelke for a herbarium
specimen of L. rodriguezii from the western Mediterranean. We are
grateful to the Total Foundation (Paris) for funding this study within
the framework of the project “Brown algal ecology and biodiversity in
the eastern Mediterranean Sea”, and to the MASTS pooling initiative
(Marine Alliance for Science and Technology for Scotland, funded by
the Scottish Funding Council and contributing institutions; grant reference
HR09011), as well as Croatian Ministry of Science, Education
and Sports for supporting project “Benthic communities in the Adriatic
Sea (Project ID: 0001005)”.
Open access via Springer Compact Agreement

Keywords

endangered algae
Circalittoral
cox1
Rubisco spacer
ITS
kelp
bottom trawling
IUCN criteria

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s00227-016-2821-2Licence: CC BY

The Mediterranean deep‑water kelp Laminaria rodriguezii is an endangered species in the Adriatic Sea
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Final published version, 2.22 MBLicence: CC BY

Frithjof Kuepper
- Engineering, National Decommissioning Centre
- Marine Alliance for Science and Technology for Scotland (MASTS)
- Biological Sciences, Aberdeen Centre For Environmental Sustainability - MASTS Chair in Marine Biodiversity
Person: Academic

Cite this

Žuljevic´, A., Peters, A. F., Nikolic, V., Antolic, B., Despalatovic, M., Cvitkovic´, I., Isajlovic, I., Mihanovic, H., Matijevic´, S., Shewring, D. M., Canese, S., Katsaros, C., & Kuepper, F. C. (2016). The Mediterranean deep-water kelp Laminaria rodriguezii is an endangered species in the Adriatic Sea. Marine Biology, 163, Article 69. https://doi.org/10.1007/s00227-016-2821-2

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title = "The Mediterranean deep-water kelp Laminaria rodriguezii is an endangered species in the Adriatic Sea",

abstract = "Deep-water kelps are little-known large brown algae occurring close to the lower limit of photosynthetic life in the sea. This study compares historical and recent records of the deep-water Mediterranean kelp Laminaria rodriguezii in the Adriatic Sea. Historical records include data from herbarium collections and trawling fishery expeditions in the mid-twentieth century, while recent data comprise records of the last 17 years from MEDITS expeditions, ROV surveys of historical kelp locations, benthic surveys and records by fishermen. Altogether, these findings demonstrate that the Adriatic population of L. rodriguezii has suffered a decline of more than 85 % of its historical range and is now present only around the small offshore island of Palagru{\v z}a. Bottom trawling activities are presumably responsible for the disappearance elsewhere. We propose to classify L. rodriguezii as “Endangered” in the Adriatic Sea under IUCN criteria B1ab(i,iii,iv), ver 3.1. Oceanographic characteristics of the habitat suggest that besides high water transparency, presence of North Adriatic Dense Water with both strong currents and stable low temperatures of around 14 °C are essential oceanographic factors for the development of L. rodriguezii in the Central Adriatic. The origin of cold water thus differs from that at upwelling sites permitting populations of tropical deep-water kelps. The phylogenetic position of L. rodriguezii is so far unknown. DNA sequences from nuclear and cytoplasmic markers of two thalli from Croatia and the western Mediterranean confirmed that L. rodriguezii is a member of the Laminariaceae and most closely related to L. ochroleuca, L. pallida and the Brazilian deep-water kelp L. abyssalis.",

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note = "Acknowledgments Thanks are due to Klaus L{\"u}ning for a gametophyte culture of L. abyssalis, and to Britta Schaffelke for a herbarium specimen of L. rodriguezii from the western Mediterranean. We are grateful to the Total Foundation (Paris) for funding this study within the framework of the project “Brown algal ecology and biodiversity in the eastern Mediterranean Sea”, and to the MASTS pooling initiative (Marine Alliance for Science and Technology for Scotland, funded by the Scottish Funding Council and contributing institutions; grant reference HR09011), as well as Croatian Ministry of Science, Education and Sports for supporting project “Benthic communities in the Adriatic Sea (Project ID: 0001005)”. Open access via Springer Compact Agreement",

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T1 - The Mediterranean deep-water kelp Laminaria rodriguezii is an endangered species in the Adriatic Sea

AU - Žuljevic´, Ante

AU - Peters, Akira F.

AU - Nikolic, Vedran

AU - Antolic, Boris

AU - Despalatovic, Marija

AU - Cvitkovic´, Ivan

AU - Isajlovic, Igor

AU - Mihanovic, Hrvoje

AU - Matijevic´, Slavica

AU - Shewring, Dawn Margaret

AU - Canese, Simonepietro

AU - Katsaros, Christos

AU - Kuepper, Frithjof C

N1 - Acknowledgments Thanks are due to Klaus Lüning for a gametophyte culture of L. abyssalis, and to Britta Schaffelke for a herbarium specimen of L. rodriguezii from the western Mediterranean. We are grateful to the Total Foundation (Paris) for funding this study within the framework of the project “Brown algal ecology and biodiversity in the eastern Mediterranean Sea”, and to the MASTS pooling initiative (Marine Alliance for Science and Technology for Scotland, funded by the Scottish Funding Council and contributing institutions; grant reference HR09011), as well as Croatian Ministry of Science, Education and Sports for supporting project “Benthic communities in the Adriatic Sea (Project ID: 0001005)”. Open access via Springer Compact Agreement

PY - 2016/4

Y1 - 2016/4

N2 - Deep-water kelps are little-known large brown algae occurring close to the lower limit of photosynthetic life in the sea. This study compares historical and recent records of the deep-water Mediterranean kelp Laminaria rodriguezii in the Adriatic Sea. Historical records include data from herbarium collections and trawling fishery expeditions in the mid-twentieth century, while recent data comprise records of the last 17 years from MEDITS expeditions, ROV surveys of historical kelp locations, benthic surveys and records by fishermen. Altogether, these findings demonstrate that the Adriatic population of L. rodriguezii has suffered a decline of more than 85 % of its historical range and is now present only around the small offshore island of Palagruža. Bottom trawling activities are presumably responsible for the disappearance elsewhere. We propose to classify L. rodriguezii as “Endangered” in the Adriatic Sea under IUCN criteria B1ab(i,iii,iv), ver 3.1. Oceanographic characteristics of the habitat suggest that besides high water transparency, presence of North Adriatic Dense Water with both strong currents and stable low temperatures of around 14 °C are essential oceanographic factors for the development of L. rodriguezii in the Central Adriatic. The origin of cold water thus differs from that at upwelling sites permitting populations of tropical deep-water kelps. The phylogenetic position of L. rodriguezii is so far unknown. DNA sequences from nuclear and cytoplasmic markers of two thalli from Croatia and the western Mediterranean confirmed that L. rodriguezii is a member of the Laminariaceae and most closely related to L. ochroleuca, L. pallida and the Brazilian deep-water kelp L. abyssalis.

AB - Deep-water kelps are little-known large brown algae occurring close to the lower limit of photosynthetic life in the sea. This study compares historical and recent records of the deep-water Mediterranean kelp Laminaria rodriguezii in the Adriatic Sea. Historical records include data from herbarium collections and trawling fishery expeditions in the mid-twentieth century, while recent data comprise records of the last 17 years from MEDITS expeditions, ROV surveys of historical kelp locations, benthic surveys and records by fishermen. Altogether, these findings demonstrate that the Adriatic population of L. rodriguezii has suffered a decline of more than 85 % of its historical range and is now present only around the small offshore island of Palagruža. Bottom trawling activities are presumably responsible for the disappearance elsewhere. We propose to classify L. rodriguezii as “Endangered” in the Adriatic Sea under IUCN criteria B1ab(i,iii,iv), ver 3.1. Oceanographic characteristics of the habitat suggest that besides high water transparency, presence of North Adriatic Dense Water with both strong currents and stable low temperatures of around 14 °C are essential oceanographic factors for the development of L. rodriguezii in the Central Adriatic. The origin of cold water thus differs from that at upwelling sites permitting populations of tropical deep-water kelps. The phylogenetic position of L. rodriguezii is so far unknown. DNA sequences from nuclear and cytoplasmic markers of two thalli from Croatia and the western Mediterranean confirmed that L. rodriguezii is a member of the Laminariaceae and most closely related to L. ochroleuca, L. pallida and the Brazilian deep-water kelp L. abyssalis.

KW - endangered algae

KW - Circalittoral

KW - cox1

KW - Rubisco spacer

KW - ITS

KW - kelp

KW - bottom trawling

KW - IUCN criteria

U2 - 10.1007/s00227-016-2821-2

DO - 10.1007/s00227-016-2821-2

M3 - Article

SN - 0025-3162

VL - 163

JO - Marine Biology

JF - Marine Biology

M1 - 69

ER -

The Mediterranean deep-water kelp Laminaria rodriguezii is an endangered species in the Adriatic Sea

Abstract

Bibliographical note

Keywords

UN SDGs

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Frithjof Kuepper

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