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Titolo:
EFFECT OF BIOTIC AND ABIOTIC FACTORS ON THE BIOCHEMICAL-COMPOSITION OF WILD EGGS AND LARVAE OF SEVERAL FISH SPECIES
Autore:
GUISANDE C; RIVEIRO I; SOLA A; VALDES L;
Indirizzi:
UNIV VIGO,FAC CIENCIAS MAR,APTDO 874 E-36200 VIGO SPAIN
Titolo Testata:
Marine ecology. Progress series
, volume: 163, anno: 1998,
pagine: 53 - 61
SICI:
0171-8630(1998)163:<53:EOBAAF>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
COD GADUS-MORHUA; AMERICANUS REPRODUCTIVE SUCCESS; FREE AMINO-ACIDS; VERTICAL-DISTRIBUTION; SARDINA-PILCHARDUS; ENERGY-METABOLISM; BUOYANCY; SIZE; TEMPERATURE; MODEL;
Keywords:
PROTEIN; CARBOHYDRATE; LIPID; EGG; LARVA; TEMPERATURE; SALINITY; SARDINA PILCHARDUS; TRACHURUS TRACHURUS; SCOMBER SCOMBRUS; ENGRAULIS ENCRASICOLUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
29
Recensione:
Indirizzi per estratti:
Citazione:
C. Guisande et al., "EFFECT OF BIOTIC AND ABIOTIC FACTORS ON THE BIOCHEMICAL-COMPOSITION OF WILD EGGS AND LARVAE OF SEVERAL FISH SPECIES", Marine ecology. Progress series, 163, 1998, pp. 53-61

Abstract

The aim of this study is to establish possible associations between temperature, salinity and egg and larval abundance, and the biochemicalcomposition of wild fertilised eggs and larvae of marine fish species. Eggs and larvae of the most abundant species at each station at the time of sampling were collected during 2 surveys carried out from 25 March to 14 April 1995 (MPH-95) for collecting eggs and from 30 May to 16 June (SEFOS-95) for collecting larvae. Both surveys were carried out on the N-NW coast of the Iberian Peninsula. Egg size, egg abundance,egg stage, temperature and salinity explained a small variance in thehigh variation observed within and between stations in protein, carbohydrate and lipid content of the eggs in both Trachurus trachurus and Scomber scombrus. Conversely, protein, carbohydrate and lipid content of larvae in Sardina pilchardus, Engraulis encrasicolus and T. trachurus seemed to vary according to either larval body length, temperature,salinity and/or larval abundance. Protein, carbohydrate and Lipid content increased as larval body length increased for the 3 species. However, a percentage of lipid and protein in the larvae of the 3 species varied according to prevailing buoyancy conditions. An increment of larval Lipid percentage and a reduction of larval protein percentage wasobserved as temperature increased and salinity decreased, the opposite case causing an increase in protein percentage and a decrease in lipid percentage of the larvae. This trade-off between protein and lipid production is interpreted as a mechanism to achieve optimal larval buoyancy.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/11/20 alle ore 20:19:44