Multi-Year Density Variation of Queen Conch (Aliger gigas) on Serrana Bank, Seaflower Biosphere Reserve, Colombia: Implications for Fisheries Management

Abstract

BACKGROUND Queen conch Aliger gigas (Linnaeus, 1758), formerly known as Strombus gigas, constitute a valuable commercial and cultural resource for native communities since pre-Hispanic times (Baisre, 2010). Populations of this marine gastropod are registered for 36 countries in the Caribbean, extending from Florida to the northern coast of South America and live mainly on sandy bottoms, in clear waters down to a depth of 100 m (CITES, 2003). Mating and spawning usually take place during the warmer months of the year, although in some areas, mainly in the western Caribbean, the breeding activity is continuous at low reproduction levels throughout the year (Avila-Poveda and Baqueiro-Cardenas, 2009; Aldana-Aranda et al., 2014; Boman et al., 2018). Moreover, some populations migrate seasonally from open waters to shallower waters for spawning (Appeldoorn, 1993). Over the past decades, intensive overfishing has led to population decline, collapse of stocks, and temporary closure of fisheries in different locations at Bermuda,

Diversity of Harvested Gastropods in Guang-Guang, Mati City, Davao Oriental, Philippines

“…Strombidae is one of the most familiar molluscan groups composed of about 100 species that mostly live in sand, seagrass, and mud flats area, and they are considered the source of food in many tropical and subtropical regions all over the world (Oo 2018;Ardila et al 2020). However, Strombidae is affected by overexploitation caused by both natural and anthropogenic stressors, which leads to a large Natsir and Dillenia 2023).…”

“…Most of the identified gastropods, include C. urceus, M. annulus annulus, C. viridis, C. capitaneus, T. sparverius, N. undata, were commonly harvested in muddy-sandy and sandy-coralline substrates in the coastal area. However, the T. sulcata and I. obsolete were commonly harvested in the H' = -∑ P i (ln P i ) decrease in the population of marine species (Stoner et al 2018;Ardila et al 2020). There are about 13 genera of Strombidae, with more than 50 different species reported that are found in the Philippines (Poppe 2008a(Poppe , 2008b, and these include the C. urceus (Pangarungan et al 2022) mangrove area of Guang-guang.…”

Microhabitat Preference of Strombidae in Selected Intertidal Areas of Zamboanga del Norte and Misamis Occidental, Philippines

“…This family of marine gastropods comprises about 100 species worldwide, which are found in tropical to subtropical, mainly living in shallow water, on sandy, muddy, rubble bottoms, or on marine grass flats (Poutiers, 1998). These species are considered a popular food source in many tropical and subtropical regions all over the world (Oo, 2018;Ardila et al, 2020) and of local economic importance (Poutiers, 1998). Over the years, most Strombidae species have been victims of intensive overfishing, which led to a declining population that resulted in large-scale exploitation of the species (Ponder and Lindberg, 1997;Stoner et al, 2018;Ardila et al, 2020).…”

“…These species are considered a popular food source in many tropical and subtropical regions all over the world (Oo, 2018;Ardila et al, 2020) and of local economic importance (Poutiers, 1998). Over the years, most Strombidae species have been victims of intensive overfishing, which led to a declining population that resulted in large-scale exploitation of the species (Ponder and Lindberg, 1997;Stoner et al, 2018;Ardila et al, 2020).…”