Coastal Fishes of São Tomé and Príncipe islands, Gulf of Guinea (Eastern Atlantic Ocean)—an update

Wirtz, Peter; Ferreira, Carlos E. L.; Floeter, Sergio R.; Fricke, Ronald; Gasparini, João Luiz; Iwamoto, Tomio; Rocha, Luiz A.; Sampaio, Cláudio L. S.; Schliewen, Ulrich K.

doi:10.11646/zootaxa.1523.1.1

Cited by 57 publications

(52 citation statements)

References 19 publications

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“…In spite of the restricted sample size that preclude population assignment of maternal origin, the nuclear DNA analysis brings additional support to the GC2 offspring as first generation hybrids between H. algiricus and H. hippocampus based on the maternally inherited cytb haplotype. Morphometric and genetic analyses therefore confirm the first records of H. algiricus in the Canary Archipelago for two consecutive years (2008 and 2009), being the most northerly live specimens reported in the Atlantic Ocean coasts (Wirtz et al, 2007). Moreover, these results have significant implications for the species' conservation as H. algiricus remains one of the species heavily involved in dried seahorse trade (Vincent et al, 2011), and has been assessed as vulnerable in the IUCN Red List (Czembor, 2012).…”

Section: Hgu-usc9supporting

confidence: 69%

“…Morphometric and genetic analyses therefore confirm the first records of H . algiricus in the Canary Archipelago for two consecutive years (2008 and 2009), being the most northerly live specimens reported in the Atlantic Ocean coasts (Wirtz et al , ). Moreover, these results have significant implications for the species' conservation as H .…”

Section: Morphometric Measurements and Comparative Counts Of Meristicmentioning

confidence: 99%

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First records of Hippocampus algiricus in the Canary Islands (north‐east Atlantic Ocean) with an observation of hybridization with Hippocampus hippocampus

Otero‐Ferrer

Herrera

López

et al. 2015

Journal of Fish Biology

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Morphometric and genetic analyses confirmed the first records of the West African seahorse Hippocampus algiricus at Gran Canaria Island (north-east Atlantic Ocean), and also the first evidence of interspecific hybridization in seahorses. These results provide additional data on the distribution of H. algiricus that may help to establish future conservation strategies, and uncover a new potential sympatric scenario between H. algiricus and Hippocampus hippocampus.

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Section: Hgu-usc9supporting

confidence: 69%

Section: Morphometric Measurements and Comparative Counts Of Meristicmentioning

confidence: 99%

First records of Hippocampus algiricus in the Canary Islands (north‐east Atlantic Ocean) with an observation of hybridization with Hippocampus hippocampus

Otero‐Ferrer

Herrera

López

et al. 2015

Journal of Fish Biology

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“…However, most studies addressing the structure of fish (and benthic) assemblages in tropical oceanic islands have been performed in the Indo‐Pacific (Sandin et al, ; Williams et al, ), in the southwestern Atlantic (Krajewski & Floeter, ; Longo et al, ; Luiz et al, ; Pinheiro, Ferreira, Joyeux, Santos, & Horta, ) or in the Tropical Eastern Pacific (e.g., Edgar et al, ; Friedlander et al, ; Quimbayo, Mendes, Kulbicki, Floeter, & Zapata, ; Quimbayo et al, ). In comparison, fish assemblages from the Tropical Eastern Atlantic (TEA) remain poorly explored apart from species checklists (Afonso et al, ; Wirtz et al, ). So far, ecological aspects of TEA reef fish assemblages have been described by one study in oil platforms (Friedlander, Ballesteros, Fay, & Sala, ) and another one at the oceanic island of Príncipe in the Gulf of Guinea (Tuya, Bosch, Abreu, & Haroun, ).…”

Section: Introductionmentioning

confidence: 99%

Spatial patterns and drivers of fish and benthic reef communities at São Tomé Island, Tropical Eastern Atlantic

et al. 2018

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Marine communities vary across spatial scales due to changes in habitat structure, wave exposure, depth and anthropogenic activities. Here, we quantitatively characterized, for the first time, the reef fish assemblages and benthic communities in six sites around São Tomé Island, in the Tropical Eastern Atlantic region. We performed 139 underwater visual census and 112 photo‐quadrats across six sites around the island to explore the relative importance of exposure, depth and topographic complexity as drivers of fish and benthic reef communities. Planktivores were the most important trophic group, in terms of both fish abundance and biomass. Small fishes (0–7 cm) dominated the abundance, whereas biomass was mainly concentrated in 8–15 and 16–30 cm body size classes. About 30% of the total benthic cover was composed of turf algae and circa of 28% of calcareous coralline algae, whereas corals were comparably less abundant (only 8%). Among these, Montastraea cavernosawas the most abundant coral (46% of the coral cover and 4% of total benthic cover). Wave exposure was the most important driver of the reef fish assemblages and was also important for benthic communities. Also, fish species composition seemed to respond, although weakly, to benthic composition. Topographic complexity had little effect on the indicators of fish assemblages but seemed to drive some changes in benthic cover. Overall, our results evidence the dominance of small planktivorous reef fish assemblages and of turf algal communities in São Tomé. Taken together, they support the idea of benthic communities shaped by wave action, with minor importance of corals, and of important energetic contribution from planktonic material. We also suggest that the relatively low biomass of medium and large fish species reflects the long‐term fishing pressure in São Tomé Island.

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“…The range of H . algiricus is reported from Senegal to Angola (Afonso et al , ; Lourie et al , ; Mamonekene et al , ), but the species was known primarily from museum specimens (Wirtz et al , ) until 2002. This is concerning given that CITES documents annual exports of around 700 000 individuals (2004–2010; World Conservation Monitoring Centre, http://www.unep-wcmc.org), making this one of the most traded seahorse species.…”

Section: Summary Statistics For Hippocampus Algiricus Hippocampus Himentioning

confidence: 99%

An assessment of West African seahorses in fisheries catch and trade

Cisneros‐Montemayor

West

Boiro³

et al. 2015

Journal of Fish Biology

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This study provides the first assessment of a heavily traded West African seahorse species, Hippocampus algiricus, and the first information on short-snouted seahorse Hippocampus hippocampus biology in Africa. A total of 219 seahorses were sampled from fisher catch in Senegal and The Gambia, with estimated height at reproductive activity for H. algiricus (161 mm) larger than mean ± S.D. catch height (150 ± 31 mm). Catch composition, height at reproductive activity and potential biases in fishery retention are discussed with regard to the current Convention on International Trade of Endangered Species (CITES) guidelines.

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Coastal Fishes of São Tomé and Príncipe islands, Gulf of Guinea (Eastern Atlantic Ocean)—an update

Cited by 57 publications

References 19 publications

First records of Hippocampus algiricus in the Canary Islands (north‐east Atlantic Ocean) with an observation of hybridization with Hippocampus hippocampus

First records of Hippocampus algiricus in the Canary Islands (north‐east Atlantic Ocean) with an observation of hybridization with Hippocampus hippocampus

Spatial patterns and drivers of fish and benthic reef communities at São Tomé Island, Tropical Eastern Atlantic

An assessment of West African seahorses in fisheries catch and trade

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