Growth, mortality and recruitment pattern of the brown mussel, Modiolus metcalfei (Bivalvia: Mytilacea), in Panguil Bay, Southern Philippines

Tumanda, Marcelino I.; Yap, Helen; McManus, Liana Talaue; Ingles, Jose A.; López, Mai G.

doi:10.1016/s0044-8486(97)00049-5

Cited by 10 publications

(12 citation statements)

References 15 publications

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“…Al-Barwani et al (2007) reported a continuous year-round recruitment pattern with a major peak between July-August for Perna viridis in the coastal waters of Malacca, Malaysia. Modiolus metcalfei from Panguil Bay, Southern Philippines, has a unimodal recruitment pattern with the peak of recruitment between May-July (Tumanda Jr. et al, 1997). Similarly, Mancera and Mendo (1996) reported that the recruitment pattern of Crassostrea rhizophorae from the Cienaga Grande de Santa Marta, Colombia, was continuous with a single peak in October-November.…”

Section: > Recruitmentmentioning

confidence: 95%

“…For example in the Polymesoda solida fishery of Colombia, fishing mortality accounts for 72% of total mortality (Rueda and Urban, 1998). Similarly, in the Modiolus metcalfei fishery of the Philippines, fishing mortality accounts for 73% of total mortality (Tumanda Jr. et al, 1997). Length-weight relationships usually describe a mathematical relationship between length and weight, such that one may be converted to the other.…”

Section: Introductionmentioning

confidence: 99%

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Population dynamics of the freshwater clamGalatea paradoxafrom the Volta River, Ghana

Adjei-Boateng

Wilson²

2012

Knowl. Managt. Aquatic Ecosyst.

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Key-words:recruitment, mortality, growth parameters, Volta River, Bivalvia Population parameters such as asymptotic (L ∞ ), growth coefficient (K), mortality rates (Z, F and M), exploitation level (E) and recruitment pattern of the freshwater clam Galatea paradoxa were estimated using lengthfrequency data from the Volta River estuary, Ghana. The L ∞ for G. paradoxa at the Volta estuary was 105.7 mm, the growth coefficient (K) and the growth performance index (Ǿ) ranged between 0.14-0.18 year −1 and 3.108-3.192, respectively. Total mortality (Z) was 0.65-0.82 year −1 , while natural mortality (M) and fishing mortality (F) were 0.35-0.44 year −1 and 0.21-0.47 year −1 , respectively, with an exploitation level of 0.32-0.57. The recruitment pattern suggested that G. paradoxa has year-round recruitment with a single pulse over an extended period (October-March) in the Volta River. The Volta River stock of G. paradoxa is overfished and requires immediate action to conserve it. This can be achieved by implementing a minimum landing size restriction and intensifying the culture of smaller clams which is a traditional activity at the estuary. RÉSUMÉLa dynamique des populations de palourdes d'eau douce Galatea paradoxa de la rivière Volta, Ghana Mots-clés :recrutement, mortalité, paramètres de croissance, Rivière Volta, BivalveLes paramètres de population tels que (L∞) asymptotique, le coefficient de croissance (K), les taux de mortalité (Z, F et M), le niveau d'exploitation (E) et le modèle de recrutement des palourdes d'eau douce Galatea paradoxa ont été estimés à l'aide des données de fréquences de longueur dans l'estuaire du fleuve Volta, au Ghana. Le L∞ pour G. paradoxa dans l'estuaire de la Volta était de 105,7 mm, le coefficient de croissance (K) et l'indice de performance de croissance (Ǿ) variaient entre 0,14 à 0,18 an −1 et de 3,108 à 3,192, respectivement. La mortalité totale (Z) était de 0,65 à 0,82 an −1 , tandis que la mortalité naturelle (M) et la mortalité par pêche (F) étaient de 0,35 à 0,44 an −1 et de 0,21 à 0,47 an −1 , respectivement, avec un niveau d'exploitation de 0,32 à 0,57. Le schéma de recrutement suppose que G. paradoxa a du recrutement tout au long de l'année avec un maximum sur une longue période (octobre-mars) dans le bassin de la Volta. Le stock de G. paradoxa de la rivière Volta est surexploité et exige une action immédiate pour le conserver. Ceci peut être réalisé en mettant en oeuvre une restriction de taille minimale de débarquement et en intensifiant la culture de petites palourdes qui est une activité traditionnelle dans l'estuaire.

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Section: > Recruitmentmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Population dynamics of the freshwater clamGalatea paradoxafrom the Volta River, Ghana

Adjei-Boateng

Wilson²

2012

Knowl. Managt. Aquatic Ecosyst.

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“…Settlement and recruitment of marine invertebrates are determined by many biotic and abiotic factors operating and interacting on multiple time and spatial scales in numerous environments (Levin, 2006;Pineda et al, 2008). The timing and magnitude of larval supplies (Cáceres-Martínez and Figueras, 1998a;Porri et al, 2006), the presence of conspecifics (Tumanda et al, 1997), algal and microbial coverage (Hunt and Scheibling, 1997;O'Connor et al, 2006) among others, are biotic factors that determine larval settlement. On the other hand, larval survivorship and development during the planktonic stage are affected by abiotic factors such as physic-chemical characteristics of water (e.g.…”

Section: Introductionmentioning

confidence: 99%

Spatial patterns of larval settlement and early post-settlement survivorship of Mytilus galloprovincialis in a Galician Ría (NW Spain). Effect on recruitment success

Fuentes-Santos

Labarta

2015

Regional Studies in Marine Science

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“…There are many tools for assessing population parameters of a stock such as FAO-ICLARM Stock Assessment Tools (FISAT) which has been most frequently used for estimating population parameters of finfish, shrimp and shellfish (Tumanda et al, 1997;Fiori and Morsán, 2004;Al-Barwani et al, 2007) since this tool needs only length-frequency data.…”

Section: Introductionmentioning

confidence: 99%

Population structure and dynamics of the cut trough shell Spisula subtruncata (da Costa) in the Sea of Marmara, Turkey

Deval

Göktürk

2008

Fisheries Research

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Growth, mortality and recruitment pattern of the brown mussel, Modiolus metcalfei (Bivalvia: Mytilacea), in Panguil Bay, Southern Philippines

Cited by 10 publications

References 15 publications

Population dynamics of the freshwater clamGalatea paradoxafrom the Volta River, Ghana

Population dynamics of the freshwater clamGalatea paradoxafrom the Volta River, Ghana

Spatial patterns of larval settlement and early post-settlement survivorship of Mytilus galloprovincialis in a Galician Ría (NW Spain). Effect on recruitment success

Population structure and dynamics of the cut trough shell Spisula subtruncata (da Costa) in the Sea of Marmara, Turkey

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