Population dynamics of the tropical bivalve Cardita affinis from Málaga Bay, Colombian Pacific related to La Niña 1999–2000

Riascos, José M.; Heilmayer, Olaf; Laudien, Jürgen

doi:10.1007/s10152-007-0083-6

Cited by 18 publications

(12 citation statements)

References 29 publications

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“…This enormous variability, particularly of river inflow, can be expected to have a strong local influence on the nutrient input and phytoplankton production and, thus, to influence the reproductive cycles of bivalves (e.g. Riascos 2006, Riascos et al 2008b. Our results show a link between increased upwelling strength and river inflow (i.e.…”

Section: Reproductive Cyclementioning

confidence: 57%

Thriving and declining: climate variability shaping life-history and population persistence of Mesodesma donacium in the Humboldt Upwelling System

Riascos¹,

Carstensen²,

Laudien³

et al. 2009

Mar. Ecol. Prog. Ser.

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Large-scale environmental patterns in the Humboldt Current System (HCS) show major changes during strong El Niño episodes, leading to the mass mortality of dominant species in coastal ecosystems. Here we explore how these changes affect the life-history traits of the surf clam Mesodesma donacium. Growth and mortality rates under normal temperature and salinity were compared to those under anomalous (El Niño) higher temperature and reduced salinity. Moreover, the reproductive spatial-temporal patterns along the distribution range were studied, and their relationship to large-scale environmental variability was assessed. M. donacium is highly sensitive to temperature changes, supporting the hypothesis of temperature as the key factor leading to mass mortality events of this clam in northern populations. In contrast, this species, particularly juveniles, was remarkably tolerant to low salinity, which may be related to submarine groundwater discharge in Hornitos, northern Chile. The enhanced osmotic tolerance by juveniles may represent an adaptation of early life stages allowing settlement in vacant areas at outlets of estuarine areas. The strong seasonality in freshwater input and in upwelling strength seems to be linked to the spatial and temporal patterns in the reproductive cycle. Owing to its origin and thermal sensitivity, the expansion and dominance of M. donacium from the Pliocene/Pleistocene transition until the present seem closely linked to the establishment and development of the cold HCS. Therefore, the recurrence of warming events (particularly El Niño since at least the Holocene) has submitted this cold-water species to a continuous local extinction-recolonization process.KEY WORDS: El Niño · Fresh water input · Geographic distribution · Reproductive cycle · Sandy beach ecology · Submarine groundwater discharge · Macroecology Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 385: [151][152][153][154][155][156][157][158][159][160][161][162][163] 2009 25 cm when disturbed (Tarifeño 1980, Jaramillo et al. 1994. In Chile, adult clams are primarily confined to the subtidal, at water depths ranging between 3 and 15 m, while the vast majority of juveniles occur mainly in the intertidal zone, often in the outlets of estuarine areas (Tarifeño 1980, Jaramillo et al. 1994, Riascos et al. 2008a, although an inverse depth pattern between juvenile and adult clams has been described for Peruvian populations (Arntz et al. 1987). The reproductive cycle of M. donacium has been found to be influenced by local variability in water temperature and food availability (Tarifeño 1980, McLachlan et al. 1996. The long meroplanktonic larval stage (30 to 45 d) allows plenty of time for the phytoplanktophagous larvae to find suitable unoccupied sediments in which to settle (Tarifeño 1980). Environmental conditions in the HCS are broadly characterized by nutrient-rich, cool waters, showing limited seasonal temperature variability compared to that in other coastal ecosystems...

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Section: Reproductive Cyclementioning

confidence: 57%

Thriving and declining: climate variability shaping life-history and population persistence of Mesodesma donacium in the Humboldt Upwelling System

Riascos¹,

Carstensen²,

Laudien³

et al. 2009

Mar. Ecol. Prog. Ser.

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“…7). However, periods of increased gametogenic activity correlated with climatic variation (Riascos et al 2007). In our study, the reproductive cycle of R. philippinarum had a seasonal spawning pattern based on the similarity between GSI/CI and the percentage of spent animals (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…15), which is defined as the volume of gonadal tissue (V gon ) relative to the total body volume (V body ), was estimated using a method based on linear measurements of the gonad region, which forms a sheath around the digestive gland (Urban and Riascos 2002; Riascos et al 2007).…”

Section: Reproductionmentioning

confidence: 99%

Some population parameters of Ruditapes philippinarum (Bivalvia, Veneridae) on the southern coast of the Marmara Sea, Turkey

Çolakoğlu

Palaz

2014

Helgol Mar Res

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Ruditapes philippinarum, a venerid clam, is a dominant species in the sandy and muddy areas in the coastal waters of the Marmara Sea. Intensive commercial harvesting of this species is conducted in these regions. We studied the population dynamics of R. philippinarum on the southern coast of the Marmara Sea (Bandırma). Samples were collected on a monthly basis between September 2012 and August 2013. Seasonal von Bertalanffy growth parameters using the length-frequency distribution of R. philippinarum were estimated at L ? = 67.50 mm and K = 0.33 year -1 , and the seasonal oscillation in growth rate was 0.53. The slowest growth period was in January. The growth performance index and potential lifespan were 3.182 and 8.06 years, respectively. The growth relationship was confirmed to have a positive allometric pattern. The average total mortality rate was estimated to be 0.777 year -1 , whereas the natural and fishing mortality rates were 0.539 and 0.238 year -1 , respectively. The current exploitation rate of R. philippinarum was 0.306. The recruitment pattern peaked during June-August, and spawning occurred between May and August. The results of this study provide valuable information on the status of R. philippinarum stocks.

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“…Studies conducted during El Niño events were excluded as these events affect spatial and temporal patterns of the reproductive cycle of bivalves (e.g. Peredo et al 1987, Urban and Tarazona 1996, Riascos et al 2008. Information on A. purpuratus in Paita, Chimbote, Callao and Pisco was obtained from the Instituto del Mar del Perú (IMA-RPE), complemented with an extensive literature review.…”

Section: Data Sourcesmentioning

confidence: 99%

Latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the Humboldt Current Upwelling Ecosystem

Uribe¹,

Oliva²,

Aguilar³

et al. 2011

Sci. Mar.

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SUMMARY:Argopecten purpuratus (Lamarck, 1819) and Mesodesma donacium (Lamarck, 1818) are bivalves that inhabit the Humboldt Current Upwelling Ecosystem. They have contrasting biogeographical origins, suggesting that their responses to exogenous factors should differ. Using circular statistics, we examine synchrony/asynchrony in the reproductive cycle between populations of each species. The results indicate that there is reproductive asynchrony in both species along their distributional range. However, there was synchrony for A. purpuratus in several location-pairs, including Paita-Chimbote, Chimbote-Callao, Callao-Pisco and Pisco-Antofagasta. For M. donacium, there were only two synchronic groups: Camaná-Capellanía-Mehuín and Hornitos-Peñuelas-Longotoma-La Ligua-Cucao-Quilanlar. A. purpuratus showed gametogenenic activity throughout the year. In contrast, M. donacium showed strong seasonality, with gametogenesis in winter and spawning in spring/summer. In conclusion, the patterns observed for these sympatric species suggest that on a large scale the reproductive cycles follow the expected patterns for the contrasting biogeographic origin of each species, so it could be argued that they are modulated by endogenous factors. However, at a local scale, the reproductive cycles of these species show variation, likely determined by local oceanographic or hydrographic processes.Keywords: Mesodesma donacium, Argopecten purpuratus, synchronic reproduction, gametogenesis, exogenous factors, circular statistics. RESUMEN: Variación latitudinal del ciclo reproductivo de dos bivalvos con orígenes biogeográficos contrastantes a lo largo del ecosistema de afloramiento de la Corriente de Humboldt. -Argopecten purpuratus (Lamarck, 1819) y Mesodesma donacium (Lamarck, 1818) son moluscos bivalvos endémicos del sistema de afloramiento de la Corriente de Humboldt pero tienen orígenes biogeográficos opuestos. Por tanto, se esperaría que los factores exógenos afectaran sus ritmos biológicos diferencialmente, entre ellos sus ciclos reproductivos. Mediante análisis de distribución circular se evaluó el sincronismo/asincronismo en ciclos reproductivos entre poblaciones de cada especie. Los resultados indican que existe asincronía reproductiva en ambas especies a lo largo de su distribución. Sin embargo para A. purpuratus se encontró varios pares de localidades sincrónicas: Paita-Chimbote; Chimbote-Callao; Callao-Pisco y Pisco-Antofagasta, y para M. donacium se dieron dos grupos sincrónicos, el primero entre las poblaciones de Camaná, Capellanía y Mehuín; y el segundo grupo entre Hornitos, Peñuelas, Longotoma, La Ligua, Cucao y Quilanlar. A. purpuratus presentó actividad gametogénica continua. En contraste, M. donacium presentó una marcada estacionalidad, con gametogénesis durante invierno y desoves durante primavera y/o verano. En conclusión, los patrones observados para ambas especies simpátricas sugieren que, a gran escala el ciclo reproductivo sigue los patrones esperados para el origen biogeográfico contrastante de cada especie, por...

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Population dynamics of the tropical bivalve Cardita affinis from Málaga Bay, Colombian Pacific related to La Niña 1999–2000

Cited by 18 publications

References 29 publications

Thriving and declining: climate variability shaping life-history and population persistence of Mesodesma donacium in the Humboldt Upwelling System

Thriving and declining: climate variability shaping life-history and population persistence of Mesodesma donacium in the Humboldt Upwelling System

Some population parameters of Ruditapes philippinarum (Bivalvia, Veneridae) on the southern coast of the Marmara Sea, Turkey

Latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the Humboldt Current Upwelling Ecosystem

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