Behavioral and Chemical Ecology of Marine Organisms with Respect to Tetrodotoxin

Williams, Becky L.

doi:10.3390/md8030381

Cited by 91 publications

(58 citation statements)

References 143 publications

(208 reference statements)

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“…It has been regarded as one of the most invasive species of the Mediterranean Sea (Streftaris & Zenetos, 2006) and as harmful to human health, fishing gears (Katsanevakis et al, 2009) and biodiversity (Bilecenoglu, 2010). The behavioural and chemical ecology of tetrodotoxin-bearing organisms has been reviewed extensively by Williams (2010) who discusses the defensive, offensive and communicative function of TTX in pufferfishes. In Turkey, L. sceleratus is considered to be the most dominant pufferfish in terms of biomass (Bilecenoglu et al, 2006;Torcu Koç et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Ecological characteristics of the invasive pufferfish Lagocephalus sceleratus (Gmelin, 1789) in the eastern Mediterranean Sea – a case study from Rhodes

Kalogirou

2013

Medit. Mar. Sci.

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In this study, the ecological and social impact of the invasive pufferfish Lagocephalus sceleratus on the coastal habitats of an area in the eastern Mediterranean Sea (Rhodes Island) was investigated. Seasonal quantitative sampling in two common coastal habitats were used to investigate habitat use by different life-stages. Sandy areas were found to be highly important for the early life stages of L. sceleratus. In contrast, Posidonia oceanica habitats were mainly preferred by larger (>29 cm) reproductive adults, not exceeding 64 cm. Lagocephalus sceleratus was found to feed on invertebrates and fish, while size classification revealed a tendency for a diet shift with increased size. During the early life stages, L. sceleratus inhabits sandy bottoms where it feeds on various invertebrates. The predominant molluscan species found in the diet of larger (> 20 cm) L. sceleratus individuals were the economically important Sepia officinalis and Octopus vulgaris. The size at which 50% of individuals have reached maturity was estimated at 36 cm. With increased size, habitat shift to seagrass meadows most possibly occurs to meet both the increased demand in prey availability and requirement for appropriate spawning ground. The condition factor for L. sceleratus showed significantly higher values during summer than all other seasons and this was attributed to the spawning season and increased feeding. Social impacts were alarming due to increased public attention concerning its lethal effects (presence of tetrodotoxin), if consumed. Its high abundance in coastal fish communities of the studied area combined with ecological and social impacts, clearly classify L. sceleratus as a pest for fisheries and a potential threat for biodiversity.

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Section: Discussionmentioning

confidence: 99%

Ecological characteristics of the invasive pufferfish Lagocephalus sceleratus (Gmelin, 1789) in the eastern Mediterranean Sea – a case study from Rhodes

Kalogirou

2013

Medit. Mar. Sci.

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“…21 This fact abrogates concerns about handling them during husbandry and experimentation. However, tetraodon is better suited to experimentation than its close relative fugu, for its small adult size (up to 17 cm compared to 70 cm) and its ability to survive in freshwater.…”

Section: Figmentioning

confidence: 99%

Description of Embryonic Development of Spotted Green Pufferfish (Tetraodon nigroviridis)

Zaucker

Bodur²,

Crollius³

et al. 2014

Zebrafish

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Pufferfish species of the Tetraodontidae family carry the smallest genomes among vertebrates. Their compressed genomes are thought to be enriched for functional DNA compared to larger vertebrate genomes, and they are important models for comparative genomics. The significance of pufferfish as model organisms in comparative genomics is due to the availability of two sequenced genomes, that of spotted green pufferfish (Tetraodon nigroviridis) and fugu (Takifugu rubripes). However, there is only a very limited utilization of pufferfish as an experimental model organism, due to the lack of established husbandry and developmental genetics protocols. In this study, we provide the first description of the normal embryonic development of Tetraodon nigroviridis. Embryos were obtained by in vitro fertilization of eggs, and subsequent development was monitored by brightfield microscopy at constant temperature. Tetraodon development was divided into distinct stages based on diagnostic morphological features, which were adopted from published literature on normal development of other fish species like medaka (Oryzias latipes), zebrafish (Danio rerio), and fugu. Tetraodon embryos show more similar morphologies to medaka than to zebrafish, reflecting its phylogenetic position. The early developmental stage series described in this study forms the foundation for the utilization of tetraodon as an experimental model organism for comparative developmental studies.

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“…TTX is believed to bio-accumulate via the marine food chain (59) , and its origin in TTX-bearing animals has been pursued for a long time. Marine bacteria V. alginolyticus, Vibrio VIII, Vibrio I, S. alga, Alteromonas tetrodonis, and others, have been shown to produce TTX, although the amount of TTX is small.…”

Section: Downloaded By [António Raposo] At 05:58 25 July 2015mentioning

confidence: 99%

Puffer fish and its consumption: To eat or not to eat?

Panão

Carrascosa

Jaber

et al. 2015

Food Reviews International

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This systematic review was done to examine the substantial increase in the number of intoxication cases in puffer fish associated with tetrodotoxin. In the past 5 years, 430 cases of intoxication and 52 deaths associated with puffer fish have been reported worldwide. It has also been verified that puffer fish have migrated to different regions, which has led to a negative environmental impact. Based on the information obtained herein, consumption of puffer fish should be legally limited, although it still remains very popular in several regions with negative social and economic impacts.

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Behavioral and Chemical Ecology of Marine Organisms with Respect to Tetrodotoxin

Cited by 91 publications

References 143 publications

Ecological characteristics of the invasive pufferfish Lagocephalus sceleratus (Gmelin, 1789) in the eastern Mediterranean Sea – a case study from Rhodes

Ecological characteristics of the invasive pufferfish Lagocephalus sceleratus (Gmelin, 1789) in the eastern Mediterranean Sea – a case study from Rhodes

Description of Embryonic Development of Spotted Green Pufferfish (Tetraodon nigroviridis)

Puffer fish and its consumption: To eat or not to eat?

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