Abundance patterns at the invasion front: The case of Siganus luridus in Linosa (Strait of Sicily, Central Mediterranean Sea)

Marco Milazzo, Giulio Franzitta, Ernesto Azzurro, Michel Bariche, Emanuela Fanelli

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4 Citazioni (Scopus)

Abstract

The dusky spinefoot (Siganus luridus) has spread through much of the eastern Mediterranean since its introduction in 1920. In the present study, we monitored the abundance of this invader around the island of Linosa (Strait of Sicily), where the species was first recorded in 2003. Data were periodically collected along two temporal windows, 2005-06 and 2012-15, by both underwater visual census and surface snorkelling. Local ecological knowledge was investigated to gain complementary information. Both approaches highlighted significant proliferation of this tropical invader, with an average abundance of 0.36 individuals per 250m2 across the 0-30-m depth range. Dense aggregations of more than 100 adult individuals were observed in September 2015, and a coherent spatial structure at the small scale (<1km) was demonstrated. Considering the biogeographical relevance of this population, located at the western edge of its exotic distribution, these findings can be taken as a valuable case study for understanding invasion processes in the marine environment.
Lingua originaleEnglish
pagine (da-a)697-702
Numero di pagine6
RivistaMarine and Freshwater Research
Volume68
Stato di pubblicazionePublished - 2017

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Siganus
Sicily
Mediterranean Sea
marine environment
strait
case studies
census
distribution

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Ecology
  • Aquatic Science
  • Ecology, Evolution, Behavior and Systematics

Cita questo

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title = "Abundance patterns at the invasion front: The case of Siganus luridus in Linosa (Strait of Sicily, Central Mediterranean Sea)",
abstract = "The dusky spinefoot (Siganus luridus) has spread through much of the eastern Mediterranean since its introduction in 1920. In the present study, we monitored the abundance of this invader around the island of Linosa (Strait of Sicily), where the species was first recorded in 2003. Data were periodically collected along two temporal windows, 2005-06 and 2012-15, by both underwater visual census and surface snorkelling. Local ecological knowledge was investigated to gain complementary information. Both approaches highlighted significant proliferation of this tropical invader, with an average abundance of 0.36 individuals per 250m2 across the 0-30-m depth range. Dense aggregations of more than 100 adult individuals were observed in September 2015, and a coherent spatial structure at the small scale (<1km) was demonstrated. Considering the biogeographical relevance of this population, located at the western edge of its exotic distribution, these findings can be taken as a valuable case study for understanding invasion processes in the marine environment.",
author = "Marco Milazzo and Giulio Franzitta and Ernesto Azzurro and Michel Bariche and Emanuela Fanelli",
year = "2017",
language = "English",
volume = "68",
pages = "697--702",
journal = "Marine and Freshwater Research",
issn = "1323-1650",
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T1 - Abundance patterns at the invasion front: The case of Siganus luridus in Linosa (Strait of Sicily, Central Mediterranean Sea)

AU - Milazzo, Marco

AU - Franzitta, Giulio

AU - Azzurro, Ernesto

AU - Bariche, Michel

AU - Fanelli, Emanuela

PY - 2017

Y1 - 2017

N2 - The dusky spinefoot (Siganus luridus) has spread through much of the eastern Mediterranean since its introduction in 1920. In the present study, we monitored the abundance of this invader around the island of Linosa (Strait of Sicily), where the species was first recorded in 2003. Data were periodically collected along two temporal windows, 2005-06 and 2012-15, by both underwater visual census and surface snorkelling. Local ecological knowledge was investigated to gain complementary information. Both approaches highlighted significant proliferation of this tropical invader, with an average abundance of 0.36 individuals per 250m2 across the 0-30-m depth range. Dense aggregations of more than 100 adult individuals were observed in September 2015, and a coherent spatial structure at the small scale (<1km) was demonstrated. Considering the biogeographical relevance of this population, located at the western edge of its exotic distribution, these findings can be taken as a valuable case study for understanding invasion processes in the marine environment.

AB - The dusky spinefoot (Siganus luridus) has spread through much of the eastern Mediterranean since its introduction in 1920. In the present study, we monitored the abundance of this invader around the island of Linosa (Strait of Sicily), where the species was first recorded in 2003. Data were periodically collected along two temporal windows, 2005-06 and 2012-15, by both underwater visual census and surface snorkelling. Local ecological knowledge was investigated to gain complementary information. Both approaches highlighted significant proliferation of this tropical invader, with an average abundance of 0.36 individuals per 250m2 across the 0-30-m depth range. Dense aggregations of more than 100 adult individuals were observed in September 2015, and a coherent spatial structure at the small scale (<1km) was demonstrated. Considering the biogeographical relevance of this population, located at the western edge of its exotic distribution, these findings can be taken as a valuable case study for understanding invasion processes in the marine environment.

UR - http://hdl.handle.net/10447/226911

UR - http://www.publish.csiro.au/nid/126.htm

M3 - Article

VL - 68

SP - 697

EP - 702

JO - Marine and Freshwater Research

JF - Marine and Freshwater Research

SN - 1323-1650

ER -