Population dynamics and condition index of natural stock of blood cockle, Tegillarca granosa (Mollusca, Bivalvia, Arcidae) in the Marudu Bay, Malaysia

Doinsing, Joanna W.; Admodisastro, Vienna Anastasia; Duisan, Laditah; Ransangan, Julian

doi:10.1007/s13131-021-1791-5

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…In contrast, during the dry season, the availability of food tends to be lower, and the coastal conditions are less stable due to the dominance of seawater in the mangrove vegetation area, leading to an increase in coastal salinity. This, in turn, impacts the productivity of various blood cockle species, causing a decrease (Doinsing et al 2021).…”

Section: Discussionmentioning

confidence: 99%

The relationship between crustacean diversity and population dynamics of Blood Cockle Tegillarca granosa in the coastal area of West Langsa, Aceh Province, Indonesia

MAWARDI,

SARONG,

SUHENDRAYATNA

et al. 2024

Biodiversitas

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Abstract. Mawardi, Sarong MA, Suhendrayatna, Irham M. 2024. The relationship between crustacean diversity and population dynamics of Blood Cockle Tegillarca granosa in the coastal area of West Langsa (Aceh Province, Indonesia). Biodiversitas 25: 690-699. Coastal areas serve as a transitional zone between land and sea, influenced by tidal fluctuations and river estuary currents. Coasts are ideal habitats for spawning and nurturing various crustaceans and bivalves. The aim of this study is to determine the relationship between the Shannon-Wiener diversity index of crustaceans and population dynamics of Tegillarca granosa (Linnaeus, 1758) (Arcidae, Bivalvia) in three different locations. The study utilized a survey method with sampling conducted using transects from the coastline towards the land in coastal areas covered with mangroves, employing transects measuring 5 meters by 5 meters. All samples collected at the study locations were fixed for identification. A total of 1,583 Crustacea individuals belonging to 17 species were sampled. The Shannon-Wiener diversity index of crustaceans ranged from 1.99 to 2.31, categorized as moderate. The highest number of individuals of T. granosa was in November, while the lowest number of individuals was recorded in July. Males of T. granosa were more dominant than females across all study sites. There was a positive correlation between the crustacean diversity index and T. granosa specimens, but a negative correlation with the crustacean dominance index. Seawater salinity, showed a positive correlation with crustacean diversity and the population dynamics of T. granosa.

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Section: Discussionmentioning

confidence: 99%

The relationship between crustacean diversity and population dynamics of Blood Cockle Tegillarca granosa in the coastal area of West Langsa, Aceh Province, Indonesia

MAWARDI,

SARONG,

SUHENDRAYATNA

et al. 2024

Biodiversitas

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“…This demonstrates that the relative growth of M. meretrix in length was higher compared with body weight. Moreover, the proportions of the clam's body parts grow at different rates with the length growing faster than the weight (Doinsing et al, 2021).…”

Section: Length-weight Relationshipmentioning

confidence: 99%

Population Parameters of Asiatic Hard Clam, Meretrix meretrix (Bivalvia: Veneridae), in Panguil Bay, Philippines

Sienes,

Lucaser,

Metillo

2022

MJST

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Asiatic hard clam (Meretrix meretrix) is abundant and artisanally harvested in Panguil Bay, Philippines. Information about its current status through stock assessment is vital to support management measures. In this study, estimation of the population parameters of the clam was done using FiSAT II software from May 2018 to April 2019. A total of 2,760 clams were collected and analyzed. The length-weight relationship showed negative allometric growth. The asymptotic length (L∞) and growth coefficient (K) of the von Bertalanffy growth formula for M. meretrix were estimated at 40.95 mm and 0.71 year-1, respectively. The estimated growth performance index (φ’) was 3.07. The predicted maximum life span (tmax) of the clam was 6.47 years. Recruitment occurred throughout the year except for April and was bimodal. Estimated total mortality (Z) was 3.18 year-1, fishing mortality (F) at 1.96 year-1, natural mortality (M) at 1.22 year-1, and exploitation level (E) was 0.62. High recorded fishing and exploitation rate can indicate that the M. meretrix stock in Panguil Bay experiences overexploitation that demands immediate sustainable management.

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Population Dynamics of Four Fin Fish Species from a Tropical Estuary

Dutta

2023

Thalassas

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Population dynamics and condition index of natural stock of blood cockle, Tegillarca granosa (Mollusca, Bivalvia, Arcidae) in the Marudu Bay, Malaysia

Cited by 3 publications

References 29 publications

The relationship between crustacean diversity and population dynamics of Blood Cockle Tegillarca granosa in the coastal area of West Langsa, Aceh Province, Indonesia

The relationship between crustacean diversity and population dynamics of Blood Cockle Tegillarca granosa in the coastal area of West Langsa, Aceh Province, Indonesia

Population Parameters of Asiatic Hard Clam, Meretrix meretrix (Bivalvia: Veneridae), in Panguil Bay, Philippines

Population Dynamics of Four Fin Fish Species from a Tropical Estuary

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