Mytilus galloprovincialis; Reproduction Activity and Mantle Structure in a Zone Located in the Northwest of the Atlantic Ocean (Imessouane, Morocco)

Belhsen, Oum Kelthoum

doi:10.4172/2324-8661.1000124

Cited by 5 publications

(2 citation statements)

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“…Obtained data showed that M. galloprovincialis is a dioecious species with a sex ratio 1:1. Similar sex ratio was reported by other authors for M. galloprovincialis (Da Ros et al, 1985;Suárez et al, 2005;Bhaby et al, 2014;Bhaby, 2015;Azpeitia et al, 2017), as well as for M. edulis (Sunila 1981;Toro et al, 2002). Contrary to those authors, Chelyadina et al (2018) in M. galloprovincialis populations from Black Sea found more males during all investigated period (M:F=2.8:1).…”

Section: Disscusionsupporting

confidence: 88%

“…Reproductive pattern of cultured bivalves are of great significance for farmers, therefore, it is not surprising that research on the reproductive cycle is mostly related to economically important bivalve species (e.g. Da Ros et al, 1985;Peharda et al, 2006;Crnčević et al, 2013;Popović et al, 2013;Matias et al, 2013;Bhaby et al, 2014;Bhaby, 2015;Ćurković, 2017;Egzeta-Balić et al, 2020;Puljas and Lukić, 2021).…”

Section: Disscusionmentioning

confidence: 99%

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SOME REPRODUCTIVE PATTERNS OF CULTURED MEDITERRANEAN MUSSEL (Mytilus galloprovincialis Lamarck, 1819) IN BOKA KOTORSKA BAY, ADRIATIC SEA

NIKOLIC¹,

PERAS²,

MANDIC³

2023

AgricultForest

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Results about annual reproductive cycle of Mediterranean mussel (Mytilus galloprovincialis Lamarck, 1819) in Boka Kotorska Bay are given in this paper. Sex ratio, gonad developmental stages, oocytes diameter, mean gonad index, condition index as well as correlation to water temperature were analysed. Sex ratio was 1:1. Maturation and spawning occurred over a great part of the year, from October to June, with short resting period during the late summer, when water temperature was above 25°C. Mean oocytes diameter ranged from 56.68 ± 10.52 µm in October 2015 to 66.58 ± 12.09 in December 2015. The highest mean oocytes diameter appeared during period when most of individuals were in ripe stage. Significant negative correlation between mean gonad index and sea water temperature was found, as well as weak negative correlation between condition index and sea water temperature. Positive correlation between condition index and mean gonad index showed that condition index followed the mean gonad index pattern. Obtained qualitative and quantitative data on reproduction cycle of cultured M. galloprovincialis are of great significance for farmers.

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Section: Disscusionsupporting

confidence: 88%

Section: Disscusionmentioning

confidence: 99%

SOME REPRODUCTIVE PATTERNS OF CULTURED MEDITERRANEAN MUSSEL (Mytilus galloprovincialis Lamarck, 1819) IN BOKA KOTORSKA BAY, ADRIATIC SEA

NIKOLIC¹,

PERAS²,

MANDIC³

2023

AgricultForest

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Synchronous Reproduction in Mussel (Mytilus Galloprovincialis) Population from Atlantic Ocean of Morocco

Bhaby¹

2015

JAMB

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We investigated the gametogenesis of a natural population of Mytilusgalloprovincialis in the Atlantic central zone (Cape Beddouza). We found that the cycle of reproduction was characterized by a synchronous gametogenesis. From March 2009 to March 2011, we histologically analyzed the status of gonad development and the reserves cells at the peak of spawning. To determine the status of gonad development, we used three biological indecies parameters: the gonadic index, the condition index and the ADG index. The gonadic index was the highest in winter. The condition index was the lowest in spring. The ADG index was the highest in autumn. We found synchrony of these indices in majority of sampled M. galloprovincialis. The found synchrony was unique in the populations other waters in Moroccan coast, where gonad development cycle was individually different. The synchrony of reproductive cycle in the population maybe a result of the consistent seasonal pattern of environmental variable along the cape.

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The Contents of Some Trace Elements (As, Br, Cu, Hg, Se, and Zn) in Mytilus galloprovincialis Mussels From Agigea Port, Romania

Bucse

Pârvulescu²,

Vasiliu³

et al. 2022

Front. Mar. Sci.

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This study aimed at assessing the accumulation of some trace elements (arsenic, bromine, copper, mercury, selenium, and zinc) in the soft tissue of Mediterranean mussels (Mytilus galloprovincialis) from the Black Sea, near Agigea Port. The mussel samples were collected on a monthly basis between February and June 2019 from two stations located in front of the Danube–Black Sea Canal lock, along the two artificial dikes. The mussels (260 samples) were divided into three classes according to their length: A (3−5.9 cm), B (6−8.9 cm), and C (9−12 cm). The concentrations (dry basis) of As (12.5 ± 3.0 mg/kg), Br (173.6 ± 53.9 mg/kg), Cu (11.2 ± 2.5 mg/kg), Hg (0.02 ± 0.02 mg/kg), Se (2.9 ± 1.1 mg/kg), and Zn (179.5 ± 2.5 mg/kg) were determined using spectrometric techniques. The mean daily values of the physicochemical parameters of seawater (temperature, salinity, pH, chlorophyll a content, and dissolved oxygen content) within the study area were reported. Higher element concentrations were generally found for mussels from size classes A and B compared with those of the larger and older mussels from class C. Principal component analysis (PCA) suggested that the phytoplankton represented an important source of As and Br for the smaller mussels collected in February (when the levels of seawater temperature were lower and those of pH and salinity higher) compared to the larger mussels collected in June. Moreover, the multivariate analysis suggested that Cu, Se, Zn, and Br originated from similar anthropogenic sources and their higher concentrations reported in February and June were obtained at lower levels of seawater salinity. The contents of Cu, Zn, Se, As, and Hg in the mussel soft tissue were lower than the maximum permissible levels.

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Mytilus galloprovincialis; Reproduction Activity and Mantle Structure in a Zone Located in the Northwest of the Atlantic Ocean (Imessouane, Morocco)

Cited by 5 publications

References 0 publications

SOME REPRODUCTIVE PATTERNS OF CULTURED MEDITERRANEAN MUSSEL (Mytilus galloprovincialis Lamarck, 1819) IN BOKA KOTORSKA BAY, ADRIATIC SEA

SOME REPRODUCTIVE PATTERNS OF CULTURED MEDITERRANEAN MUSSEL (Mytilus galloprovincialis Lamarck, 1819) IN BOKA KOTORSKA BAY, ADRIATIC SEA

Synchronous Reproduction in Mussel (Mytilus Galloprovincialis) Population from Atlantic Ocean of Morocco

The Contents of Some Trace Elements (As, Br, Cu, Hg, Se, and Zn) in Mytilus galloprovincialis Mussels From Agigea Port, Romania

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