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[Availabilty of juveniles from natural sources of the oyster Pteria colymbus (Bivalvia: Mytilidae), in the Gulf of Cariaco, Venezuela].
Rev Biol Trop. 2000 Dec; 48 Suppl 1:151-8.RB

Abstract

We examined the spat availability the oyster Pteria colymbus at 6-8 and 19-21 m depths for 15 months (March 1993-June 1994) in Turpialito, Golfo de Cariaco, Venezuela. Spats were trapped using artificial collectors (plastic filaments in bags, 30 x 60 mm), suspended from a long line. Each collector was replaced by a replica monthly to analyse abundance, shell dimension and mass of P. colymbus. Intraweekly, the temperature, salinity, oxygen and food availability (Chlorophyll a, total seston, organic and inorganic seston) were determinated. There is juvenile recruitment all year, suggesting continuous reproduction. Spat counts were higher at 6-8 m (generally 50-230 juveniles per collector) with peaks in August and December 1993 (April and June 93 at 19-21 m). The length-weigh mass relation was higher at 19-21 m, suggesting greater food availability because of lower organism density (including P. colymbus) and a greater water flux. Phytoplanktonic abundance and temperature were correlated (r2=0.38) with juvenile abundanc; this relationship and the association of juvenile abundance with higher temperature and Chlorophyll a levels, suggest that spat abundance was higher at the beginning of the water stratification period, when phytoplankton biomass is high.

Authors+Show Affiliations

Instituto Oceanográfico de Venezuela, Universidad de Oriente, Cumaná 6101, Venezuela. brightdoom@hotmail.comNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article
Research Support, Non-U.S. Gov't

Language

spa

PubMed ID

15266803

Citation

Marquez, B, et al. "[Availabilty of Juveniles From Natural Sources of the Oyster Pteria Colymbus (Bivalvia: Mytilidae), in the Gulf of Cariaco, Venezuela]." Revista De Biologia Tropical, vol. 48 Suppl 1, 2000, pp. 151-8.
Marquez B, Lodeiros C, Jimenez M, et al. [Availabilty of juveniles from natural sources of the oyster Pteria colymbus (Bivalvia: Mytilidae), in the Gulf of Cariaco, Venezuela]. Rev Biol Trop. 2000;48 Suppl 1:151-8.
Marquez, B., Lodeiros, C., Jimenez, M., & Himmelman, J. H. (2000). [Availabilty of juveniles from natural sources of the oyster Pteria colymbus (Bivalvia: Mytilidae), in the Gulf of Cariaco, Venezuela]. Revista De Biologia Tropical, 48 Suppl 1, 151-8.
Marquez B, et al. [Availabilty of Juveniles From Natural Sources of the Oyster Pteria Colymbus (Bivalvia: Mytilidae), in the Gulf of Cariaco, Venezuela]. Rev Biol Trop. 2000;48 Suppl 1:151-8. PubMed PMID: 15266803.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Availabilty of juveniles from natural sources of the oyster Pteria colymbus (Bivalvia: Mytilidae), in the Gulf of Cariaco, Venezuela]. AU - Marquez,B, AU - Lodeiros,C, AU - Jimenez,M, AU - Himmelman,J H, PY - 2004/7/23/pubmed PY - 2005/3/11/medline PY - 2004/7/23/entrez SP - 151 EP - 8 JF - Revista de biologia tropical JO - Rev. Biol. Trop. VL - 48 Suppl 1 N2 - We examined the spat availability the oyster Pteria colymbus at 6-8 and 19-21 m depths for 15 months (March 1993-June 1994) in Turpialito, Golfo de Cariaco, Venezuela. Spats were trapped using artificial collectors (plastic filaments in bags, 30 x 60 mm), suspended from a long line. Each collector was replaced by a replica monthly to analyse abundance, shell dimension and mass of P. colymbus. Intraweekly, the temperature, salinity, oxygen and food availability (Chlorophyll a, total seston, organic and inorganic seston) were determinated. There is juvenile recruitment all year, suggesting continuous reproduction. Spat counts were higher at 6-8 m (generally 50-230 juveniles per collector) with peaks in August and December 1993 (April and June 93 at 19-21 m). The length-weigh mass relation was higher at 19-21 m, suggesting greater food availability because of lower organism density (including P. colymbus) and a greater water flux. Phytoplanktonic abundance and temperature were correlated (r2=0.38) with juvenile abundanc; this relationship and the association of juvenile abundance with higher temperature and Chlorophyll a levels, suggest that spat abundance was higher at the beginning of the water stratification period, when phytoplankton biomass is high. SN - 0034-7744 UR - https://www.unboundmedicine.com/medline/citation/15266803/[Availabilty_of_juveniles_from_natural_sources_of_the_oyster_Pteria_colymbus__Bivalvia:_Mytilidae__in_the_Gulf_of_Cariaco_Venezuela]_ DB - PRIME DP - Unbound Medicine ER -
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