Fecundity and life-history strategies in marine invertebrates

Ramirez-Llodra, Eva

doi:10.1016/s0065-2881(02)43004-0

Cited by 279 publications

(211 citation statements)

References 216 publications

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“…In marine invertebrates, growth rate, size and age at maturity, and fecundity are important life-history traits (Kozlowski 1991, Ramírez Llodra 2002. These traits are related to energy allocation strategies and are the basis of the differences between different life history and population dynamics (Heino andKaitala 1999, Ramírez Llodra 2002).…”

Section: Discussionmentioning

confidence: 99%

“…The different ways in which resources are allocated to growth and reproduction form the basis of the different life-history strategies in marine invertebrates (Ramírez Llodra 2002). Resource partitioning has a strong influence on life-history traits such as age at maturity, fecundity and growth rates (Stearns 1992, Heino andKaitala 1999).…”

Section: Introductionmentioning

confidence: 99%

“…In both growth models, size and age at maturity play a pivotal role in the life cycle of species because selection pressures change drastically. Age at maturity is an allocation decision that results from the balance between costs and benefits of starting reproduction investment at this age (Stearns 1992, Ramírez Llodra 2002.…”

Section: Introductionmentioning

confidence: 99%

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Growth and reproduction investment of the young of the year of the squat lobster <em>Munida gregaria</em> (Crustacea: Anomura) in the Patagonian coast

Varisco¹,

Vinuesa²

2015

Sci. Mar.

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Summary:The growth and reproduction investment of the young of the year (0+) of the squat lobster Munida gregaria in San Jorge Gulf, Argentina, were analysed. Moult cycle and size frequency distribution were studied in monthly field samples. Experiments to determine moult increments and intermoult duration were conducted. Sexual maturity, fecundity and reproductive output were analysed in field samples. In addition, maturity experiments in laboratory cultures were conducted. After settlement (November), juveniles showed fast growth until winter (July) and growth restarted in September-October. At the beginning of the mating period (early June), males 0+ exhibited mature gonads, whereas females 0+ only showed previtellogenic oocytes. Experimental data showed that females with developed gonads had smaller-size increments in the previous moult. Fecundity and reproductive output were significantly lower in females 0+ than in older females. The early life history of M. gregaria in San Jorge Gulf differs from that of southern populations as those of Beagle Channel and Strait of Magellan due to faster growth and early reproductive investment. Our results suggest that females 0+ of M. gregaria have two investment strategies: early maturity with low fecundity and delayed maturity with higher future fecundity.Keywords: resource allocation; growth; moult; maturity; fecundity; squat lobsters; Munida gregaria, Patagonia.Crecimiento e inversión reproductiva de juveniles de la langostilla Munida gregaria (Crustacea: Anomura) en la costa Patagónica Resumen: Se estudió el crecimiento y la inversión reproductiva de juveniles tempranos (0+) de la langostilla Munida gregaria en el Golfo San Jorge, Argentina. El ciclo de muda y la distribución de tallas fueron analizados mensualmente en muestras de campo. Se realizaron experiencias de laboratorio para determinar el incremento por muda y la duración de la intermuda. La madurez sexual, fecundidad y el esfuerzo reproductivo fueron analizados en muestras de campo. Además, la madurez gonadal fue evaluada en cultivos de laboratorio. Luego del asentamiento (noviembre), los juveniles 0+ muestran un periodo de crecimiento rápido que se prolonga hasta julio, cuando la actividad de muda decrece. La actividad de muda se reinicia en septiembre-octubre. Al comienzo del periodo reproductivo (junio), los machos 0+ presentan gónadas maduras mientras que las hembras muestran oocitos previtelogénicos. Las hembras presentan oocitos vitelogénicos en los meses posteriores próximos al final del periodo de cópula. Las experiencias de laboratorio muestran que las hembras 0+ que maduran sus gó-nadas tienen incrementos por muda inferiores en la muda previa, respecto de aquellas hembras que no alcanzan la madurez. La fecundidad y el esfuerzo reproductivo fueron significativamente menores en hembras 0+ que en hembras de cohortes más avanzadas. La historia de vida temprana de M. gregaria en el Golfo San Jorge difiere de la observada en poblaciones más australes, como el Canal Beagle y el Estrecho de Magallanes, ...

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Growth and reproduction investment of the young of the year of the squat lobster <em>Munida gregaria</em> (Crustacea: Anomura) in the Patagonian coast

Varisco¹,

Vinuesa²

2015

Sci. Mar.

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“…Fransozo 1998, 2003). The breeding period of brachyuran species in tropical and subtropical areas frequently follows a continuous pattern, probably due to the greater constancy of favorable conditions over the year compared to temperate zones, wherein crabs generally breed seasonally (Sastry 1983, Morgan and Christy 1995, Ramirez Llodra 2002, Litulo 2005. Breeding peaks are also frequently found for crabs in tropical and subtropical areas (e.g.…”

Section: Brockerhoff and Mclay 2005)mentioning

confidence: 99%

Growth and reproduction of the mangrove crab Goniopsis cruentata (Latreille, 1803) (Crustacea: Decapoda: Grapsidae) in southeastern Brazil

Reis

Taddei

Cobo

2015

An. Acad. Bras. Ciênc.

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Goniopsis cruentata is a common semi-terrestrial crab in Brazilian mangroves and an important fishery resource for traditional communities in the northeastern Brazilian coast. Aiming to contribute to the knowledge about the species, this study evaluated the carapace width and weight growth curves, the relative growth of weight versus carapace width, and the temporal variation of gonadosomatic and hepatosomatic indices for the species. A total of 524 crabs were collected in a mangrove area of Ubatuba municipality, state of São Paulo. The growth-curves parameters and longevity (t max ) were estimated for males (CW∞=50.6 mm, WE=56.4 g, k=2.24, t 0 =0.003631502 year -1 , t max =1.3 years) and females (CW∞=50.7 mm, WE∞=58.8 g, k=2.50, t 0 =0.003247209 year -1 , t max =1.2 years). The age at onset of sexual maturity was 0.23 years for both genders. The weight-growth model was isometric for the immature developmental stages and allometric negative for adults. The species exhibited a continuous reproduction, with breeding peaks in spring and summer months. The weight dynamics of gonads and hepatopancreas were not clearly related. The growth and reproductive patterns indicated that Goniopsis cruentata has a life-history that prioritizes reproduction instead of survival. The species exhibited some of the highest growth rates and lowest longevity estimates reported for brachyuran species in Brazil.

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“…Brooding is a common mode of reproduction in small-sized bivalves, no matter where they live (Ramirez Llodra 2002;Ripley and Caswell 2008). However, brooding appears to be a quite successful and common strategy, where environmental conditions put constrains on the availability of energy to adults and/or larvae (Galley et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Growth and reproduction in the Antarctic brooding bivalve Adacnarca nitens (Philobryidae) from the Ross Sea

et al. 2009

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We present information on the reproductive biology, population structure, and growth of the brooding Antarctic bivalve Adacnarca nitens Pelseneer 1903, from the Ross Sea, Antarctica. Individuals ranging from 0.85 to 6.00 mm were found attached to a hydrozoan colony. This species shows low fecundity and large egg size, common to other brooding species. The minimum size at which oogenesis was detected was 2.3 mm and the minimum size at which brooding was evident was 3.9 mm. Embryos of a full range of developmental stages were brooded simultaneously in females. The population showed a log-normal distribution and results suggest non-periodic reproduction with continuous embryonic development. The reproductive traits of A. nitens are discussed in the context of circumAntarctic species distribution and limitations to dispersal in brooding benthic invertebrates.

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Fecundity and life-history strategies in marine invertebrates

Cited by 279 publications

References 216 publications

Growth and reproduction investment of the young of the year of the squat lobster <em>Munida gregaria</em> (Crustacea: Anomura) in the Patagonian coast

Growth and reproduction investment of the young of the year of the squat lobster <em>Munida gregaria</em> (Crustacea: Anomura) in the Patagonian coast

Growth and reproduction of the mangrove crab Goniopsis cruentata (Latreille, 1803) (Crustacea: Decapoda: Grapsidae) in southeastern Brazil

Growth and reproduction in the Antarctic brooding bivalve Adacnarca nitens (Philobryidae) from the Ross Sea

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