Gastropod mollusks from the continental shelf off Jalisco and Colima, Mexico: species collected with a trawl net
This study examines the distribution and abundance with respect to depth and type of substratum of 86 gastropod species collected from the Pacific continental shelf off Jalisco and Colima, Mexico, in August 1988. Sampling was performed with a trawl net at 22 stations, at depths of 18 to 112 m. A tot...
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Iniversidad Autónoma de Baja California
1998
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oai:cienciasmarinas.com.mx:article-7642019-05-16T18:46:24Z Gastropod mollusks from the continental shelf off Jalisco and Colima, Mexico: species collected with a trawl net Moluscos gastrópodos de la plataforma continental de Jalisco y Colima, México: especies recolectadas con red de arrastre Pérez-Peña, M Ríos-Jara, E gastropods benthos continental shelf Mexican Pacific gastrópodos bentos plataforma continental Pacifico mexicano This study examines the distribution and abundance with respect to depth and type of substratum of 86 gastropod species collected from the Pacific continental shelf off Jalisco and Colima, Mexico, in August 1988. Sampling was performed with a trawl net at 22 stations, at depths of 18 to 112 m. A total of 582 individuals pertaining to 42 genera, 25 families, 4 orders and 3 subclasses of gastropods were collected. Abundance of gastropods was similar between 18 and 83 m, but the number of live individuals decreased between 41 and 60 m. Deep (61-83 m) stations registered the lowest diversity; however, the number of species collected alive decreased with depth. No gastropods were collected at stations deeper than 83 m. The number of individuals and species also varied with the type of substratum. Greater heterogeneity of the sediments was found at the shallower stations (18860 m) with medium sand, sandy silt and silty clay substrata. The greatest number of species were collected at stations with sandy silt and medium sand substrata. Total abundance was notably smaller in medium sand, while the abundance of live gastropods was higher in silty clay substratum. The seven most abundant species represented 5 1.2% of all of the individuals. Most of these species are of commercial interest, in particular those of the genera Fusinus, Hexaplex, Ficus, Harpa, Cantharus and Bursa. En este estudio se examina la distribución y abundancia con respecto a la profundidad y tipo de substrato de 86 especies de gastrópodos recolectados en la plataforma continental de Jalisco y Colima, México, en agosto de 1988. El muestreo se realizó con una red de arrastre en 22 estaciones, a profundidades de entre 18 y 112 m. Se recolectaron un total de 582 individuos pertenecientes a 42 géneros. 25 familias, 4 órdenes y 3 subclases de gastrópodos. La abundancia de los gastrópodos fue similar entre los 4 I y 83 m, aunque el número de individuos vivos disminuyó entre los 4 I y 60 m. Las estaciones profundas (61-83 m) registraron la menor diversidad; sin embargo, el número de especies recolectadas vivas disminuyó con la profundidad. Ningún gastrópodo fue recolectado en estaciones más profundas que 83 m. El número de individuos y especies varió también con el tipo de substrato. La mayor heterogeneidad de los sedimentos fue encontrada en las estaciones someras (18860 m) con substratos de arena media, limo arenoso y limo arcilloso. El mayor número de especies fue recolectado en estaciones con substratos de limo arenoso y arena media. La abundancia total fue notablemente menor en arena media, mientras que la abundancia de gastrópodos vivos fue mayor en substrato de limo arcilloso. Las siete especies más abundantes representaron 51.2% de todos los individuos. La mayoría de estas especies son de interés comercial, en particular aquellas de los géneros Fusinus, Hexaplex, Ficus, Harpa, Cantharus y Bursa. Iniversidad Autónoma de Baja California 1998-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/764 10.7773/cm.v24i4.764 Ciencias Marinas; Vol. 24 No. 4 (1998); 425-442 Ciencias Marinas; Vol. 24 Núm. 4 (1998); 425-442 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/764/691 |
| institution |
Ciencias Marinas |
| collection |
OJS |
| language |
eng |
| format |
Online |
| author |
Pérez-Peña, M Ríos-Jara, E |
| spellingShingle |
Pérez-Peña, M Ríos-Jara, E Gastropod mollusks from the continental shelf off Jalisco and Colima, Mexico: species collected with a trawl net |
| author_facet |
Pérez-Peña, M Ríos-Jara, E |
| author_sort |
Pérez-Peña, M |
| title |
Gastropod mollusks from the continental shelf off Jalisco and Colima, Mexico: species collected with a trawl net |
| title_short |
Gastropod mollusks from the continental shelf off Jalisco and Colima, Mexico: species collected with a trawl net |
| title_full |
Gastropod mollusks from the continental shelf off Jalisco and Colima, Mexico: species collected with a trawl net |
| title_fullStr |
Gastropod mollusks from the continental shelf off Jalisco and Colima, Mexico: species collected with a trawl net |
| title_full_unstemmed |
Gastropod mollusks from the continental shelf off Jalisco and Colima, Mexico: species collected with a trawl net |
| title_sort |
gastropod mollusks from the continental shelf off jalisco and colima, mexico: species collected with a trawl net |
| description |
This study examines the distribution and abundance with respect to depth and type of substratum of 86 gastropod species collected from the Pacific continental shelf off Jalisco and Colima, Mexico, in August 1988. Sampling was performed with a trawl net at 22 stations, at depths of 18 to 112 m. A total of 582 individuals pertaining to 42 genera, 25 families, 4 orders and 3 subclasses of gastropods were collected. Abundance of gastropods was similar between 18 and 83 m, but the number of live individuals decreased between 41 and 60 m. Deep (61-83 m) stations registered the lowest diversity; however, the number of species collected alive decreased with depth. No gastropods were collected at stations deeper than 83 m. The number of individuals and species also varied with the type of substratum. Greater heterogeneity of the sediments was found at the shallower stations (18860 m) with medium sand, sandy silt and silty clay substrata. The greatest number of species were collected at stations with sandy silt and medium sand substrata. Total abundance was notably smaller in medium sand, while the abundance of live gastropods was higher in silty clay substratum. The seven most abundant species represented 5 1.2% of all of the individuals. Most of these species are of commercial interest, in particular those of the genera Fusinus, Hexaplex, Ficus, Harpa, Cantharus and Bursa. |
| publisher |
Iniversidad Autónoma de Baja California |
| publishDate |
1998 |
| url |
https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/764 |
| _version_ |
1715724008156037120 |
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