New records of the Californian lancelet Branchiostoma californiense (Cephalochordata: Branchiostomidae) from the Pacific coast of Mexico

Galván‐Villa, Cristian Moisés; Ríos‐Jara, Eduardo; Ayón-Parente, Manuel

doi:10.1016/j.rmb.2017.10.032

Cited by 7 publications

(22 citation statements)

References 11 publications

(8 reference statements)

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“…Collected specimens for this study presented similar diagnoses and these diagnoses coincided with those published previously [1][2][3]7,19]. The total number of myotomes was 65-71, of which 43-45 were preatriopore myotomes, 15-20 were between atriopore and anal, 8-9 were postanal myotomes, with 320-345 dorsal storage chambers, and 14-16 buccal cirri.…”

Section: Diagnosissupporting

confidence: 86%

“…Sediment temperature and three parameters with three replicas in each zone (see Figure 2, Table 2). For the identification of collected cephalochordates, we used the descriptions of Kirkaldy [2], Hubbs [19], Poss and Boschung [3], Del Moral-Flores, et al [1] and Galván-Villa, et al [7]. The species were observed using an Optika ® 50 × stereoscopic microscope (Via Rigla, Bergamo, Italy).…”

Section: Resultsmentioning

confidence: 99%

“…According to Del Moral-Flores, et al [1], there are 35 valid species of cephalochordates, all included in the family Branchiostomatidae, and divided into three genera: Asymmetron, Branchiostoma, and Epigonichthys [3][4][5][6]. The Branchiostoma genus is the most diverse, with 23 valid species [7].…”

Section: Introductionmentioning

confidence: 99%

“…The cephalochordates are cosmopolitan and usually inhabit the shallow marine waters near the coasts [1,7], although some species can inhabit depths greater than 200 m. The work of Kon, et al [8] established that they can spend most of their lives forming part of the plankton [4,9,10]. They are mainly associated with thick sediments, such as sand, gravel, or shells' remains [9,11].…”

Section: Introductionmentioning

confidence: 99%

“…Along the Mexican Pacific coasts, only the amphioxus Branchiostoma californiense (Andrews, 1893) has been reported [1,7].…”

Section: Introductionmentioning

confidence: 99%

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First Record of Amphioxus Branchiostoma californiense (Amphioxiformes: Branchiostomatidae) Adjacent to a Shallow Submarine Hydrothermal System at Banderas Bay (Mexico)

2019

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Shallow submarine hydrothermal vent systems assume differentiated environmental conditions. Some specimens of Branchiostoma californiense were found in the sediments of the influence area of the shallow hydrothermal venting in Punta Mita. This is the only lancelet species registered for the Mexican Pacific. The meristic and morphometric characteristics of the organisms first collected in unconsolidated sediments of this shallow system were reviewed, in order to determine the species. We confirm that it is the same species. This represents the first record of it for both the Banderas bay and in the influence area of a shallow hydrothermal system.

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Section: Diagnosissupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Along the Mexican Pacific coasts, only the amphioxus Branchiostoma californiense (Andrews, 1893) has been reported [1,7].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

First Record of Amphioxus Branchiostoma californiense (Amphioxiformes: Branchiostomatidae) Adjacent to a Shallow Submarine Hydrothermal System at Banderas Bay (Mexico)

2019

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Benthic infauna associated with a shallow-water hydrothermal system of Punta Mita (Mexico)

Rodríguez-Uribe

Núñez-Cornũ²,

Prol‐Ledesma

et al. 2023

J. Mar. Biol. Ass.

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The shallow-water hydrothermal system of Punta Mita in Banderas Bay is located on the fault called Fisura de las Coronas off Punta Pantoque beach. In this area, three sites with hydrothermal vents were studied at a depth of 9 m. This study aimed to characterize the structure of the benthic infauna communities that coexist in this hydrothermal system; therefore, physicochemical parameters were measured and the organisms found in the sediment samples were identified up to the class taxonomic level. The highest temperatures (89°C) were recorded within the hydrothermal influence area, which was reflected in an inverse relationship with pH, conductivity and salinity. Sediment temperature profiles increased at greater depth. A total of 371 individuals were found and these were grouped into eight classes: Malacostraca, Maxillopoda, Gastropoda, Bivalvia, Scaphopoda, Polychaeta, Leptocardii and Stenolaemata. The Malacostraca class was the most abundant with 240 individuals, while the Scaphopoda was the lowest with 3. The organic matter contents in the sediments were higher in the areas adjacent to the hydrothermal activity. The high temperature of the hydrothermal discharges structures the benthic community since it was the factor that differed most significantly in the study sites, causing lower abundances in the area of hydrothermal influence compared with the more distant areas. Despite the above, it is concluded that the benthic community of the area with hydrothermal activity is part of the community adjacent to this influence, only in lower numbers.

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Molecular taxonomy confirms that the northeastern Atlantic and Mediterranean Sea harbor a single lancelet, Branchiostoma lanceolatum (Pallas, 1774) (Cephalochordata: Leptocardii: Branchiostomatidae)

et al. 2021

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Branchiostomatidae (lancelets or amphioxus) comprises about 30 species, several of which are well-established models in evolutionary development. Our zoological and ecological knowledge of the family is nonetheless limited. Despite evident differences can be found among known populations, the taxonomy of Branchiostoma lanceolatum (type species of the genus Branchiostoma) has never been investigated with modern methods through its range in the northeastern Atlantic and Mediterranean Sea. We address this via a multilocus molecular approach and comparing specimens collected from different European populations. Results obtained here confirm the presence of a single species inhabiting the range between the topotypical localities of B. lanceolatum (Atlantic Ocean) and of its junior synonym B. lubricum (Mediterranean Sea), without evincing geographical structure between populations. This suggests that environment most likely drives the characteristics observed in different geographic areas. The long larval phase and the slow mutation rate in lancelets may have played a key role in the evolutionary history of this iconic species.

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New records of the Californian lancelet Branchiostoma californiense (Cephalochordata: Branchiostomidae) from the Pacific coast of Mexico

Cited by 7 publications

References 11 publications

First Record of Amphioxus Branchiostoma californiense (Amphioxiformes: Branchiostomatidae) Adjacent to a Shallow Submarine Hydrothermal System at Banderas Bay (Mexico)

First Record of Amphioxus Branchiostoma californiense (Amphioxiformes: Branchiostomatidae) Adjacent to a Shallow Submarine Hydrothermal System at Banderas Bay (Mexico)

Benthic infauna associated with a shallow-water hydrothermal system of Punta Mita (Mexico)

Molecular taxonomy confirms that the northeastern Atlantic and Mediterranean Sea harbor a single lancelet, Branchiostoma lanceolatum (Pallas, 1774) (Cephalochordata: Leptocardii: Branchiostomatidae)

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