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Titolo:
Relative tolerance of cirripede larval stages to acute thermal shock: A laboratory study
Autore:
Thiyagarajan, V; Nancharaiah, YV; Venugopalan, VP; Nair, KVK; Subramoniam, T;
Indirizzi:
BARC Facil, Water & Stream Chem Lab, Kalpakkam 603102, Tamil Nadu, India BARC Facil Kalpakkam Tamil Nadu India 603102 am 603102, Tamil Nadu, India Univ Madras, Dept Zool, Chennai 600025, India Univ Madras Chennai India 600025 adras, Dept Zool, Chennai 600025, India Natl Inst Ocean Technol, Chennai, India Natl Inst Ocean Technol Chennai India nst Ocean Technol, Chennai, India
Titolo Testata:
JOURNAL OF THERMAL BIOLOGY
fascicolo: 6, volume: 25, anno: 2000,
pagine: 451 - 457
SICI:
0306-4565(200012)25:6<451:RTOCLS>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
FOOD;
Keywords:
acute thermal shock; Balanus reticulatus; Nauplii; Cypris; barnacle; larvae;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Venugopalan, VP BARC Facil, Water & Stream Chem Lab, Kalpakkam 603102, Tamil Nadu, India BARC Facil Kalpakkam Tamil Nadu India 603102 Nadu, India
Citazione:
V. Thiyagarajan et al., "Relative tolerance of cirripede larval stages to acute thermal shock: A laboratory study", J THERM BIO, 25(6), 2000, pp. 451-457

Abstract

(1) Meroplankters drawn into once-through cooling circuits of coastal power plants are subjected to transient thermal stress. The effect of such acute thermal shock on the development of barnacle larvae was studied in the laboratory. (2) The response of the barnacle larvae (naupliar and cyprid stages) to elevated temperature was dependent on exposure time and their stage of development. (3) Among the stages tested, N-6 larvae showed maximum tolerance. Exposureto 37 degreesC did not affect larval survival, but delayed development of N-2 larva to cypris by one day. (4) Exposure at 40 degreesC delayed, hastened or did not affect the development time of N-2 and N-4 larvae through cypris, depending on exposure time. (5) Ten mins exposure at 43 degreesC proved lethal to all larval stages with mortality ranging from 20 to 86%. (6) Development success of the surviving larvae, measured in terms of cypris yield, showed no significant difference from controls, at temperatures below 40 degreesC. (7) Settlement activity was significantly affected in only those cyprid larvae which were exposed to 43 degreesC for 10 min. (8) Results of the present study indicate that thermal stress experienced in the once-through cooling system does not have significant impact on survival and development of the barnacle larvae at temperatures of 37-40 degreesC. (C) 2000 Published by Elsevier Science Ltd.

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Documento generato il 02/07/20 alle ore 22:33:46