Reproductive biology of the original hydrothermal hairy snail, Alviniconcha hessleri, from the Mariana back-arc DOI
Nova Hanson, Amanda E. Bates,

Suzanne Dufour

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 27, 2024

Abstract Many life history traits of hydrothermal vent fauna are undescribed, yet this knowledge is crucial for the accurate assessment vulnerability endemic species, which endangered by anthropogenic impacts in deep-sea. Here we advance Hessler’s hairy snail, Alviniconcha hessleri, a dominant gastropod harbouring chemosynthetic endosymbionts to vents along Mariana back-arc. Snails were collected from sites at four fields quantify reproductive periodicity using histology, larval developmental mode oocyte and protoconch-I size, differences size across diverse venting environments. Results indicate that A. hessleri shares some same as other gastropods: continuous oogenesis consistent provisioning regardless local fluid chemistry. A maximum 93 µm indicates planktotrophy species but could not be further supported protoconch due excessive shell degradation. Our results suggest maximizes output quality, expected response unpredictable environmental conditions ensure continued maintenance existing populations establishment new populations. Although may convey high dispersal potential, realized range limited seven fields. Thus, vulnerable habitat disruption its reliance on restricted habitat, even though it has adapted variability.

Language: Английский

Observations on the reproductive biology of the original hydrothermal hairy snail, Alviniconcha hessleri, from the Mariana back-arc DOI
Nova Hanson, Amanda E. Bates, Suzanne C. Dufour

et al.

Marine Biology, Journal Year: 2025, Volume and Issue: 172(4)

Published: March 11, 2025

Language: Английский

Citations

0
Reproductive biology of the original hydrothermal hairy snail, Alviniconcha hessleri, from the Mariana back-arc DOI
Nova Hanson, Amanda E. Bates,

Suzanne Dufour

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 27, 2024

Abstract Many life history traits of hydrothermal vent fauna are undescribed, yet this knowledge is crucial for the accurate assessment vulnerability endemic species, which endangered by anthropogenic impacts in deep-sea. Here we advance Hessler’s hairy snail, Alviniconcha hessleri, a dominant gastropod harbouring chemosynthetic endosymbionts to vents along Mariana back-arc. Snails were collected from sites at four fields quantify reproductive periodicity using histology, larval developmental mode oocyte and protoconch-I size, differences size across diverse venting environments. Results indicate that A. hessleri shares some same as other gastropods: continuous oogenesis consistent provisioning regardless local fluid chemistry. A maximum 93 µm indicates planktotrophy species but could not be further supported protoconch due excessive shell degradation. Our results suggest maximizes output quality, expected response unpredictable environmental conditions ensure continued maintenance existing populations establishment new populations. Although may convey high dispersal potential, realized range limited seven fields. Thus, vulnerable habitat disruption its reliance on restricted habitat, even though it has adapted variability.

Language: Английский

Citations

0