The spawning of <i>Arenicola marina</i> (L). I. The breeding season

Howie, D. I. D.

doi:10.1017/s0025315400006172

Cited by 34 publications

(14 citation statements)

References 9 publications

(18 reference statements)

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“…Arenicola marina, the lugworm, is a common polychaete in sand flats in Northern Europe, where it usually reproduces in autumn or early winter (Howie 1959). The reproductive biology has been reviewed most recently by Howie (2984).…”

Section: Arenicola Marinamentioning

confidence: 99%

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Sediment selection by juvenile Arenicola marina

Hardege¹,

Bentley²,

Snape³

1998

Mar. Ecol. Prog. Ser.

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Juveniles of the benthic polychaete Arenicola marina migrate until they recognise a substratum suitable for settlement. As in a number of marme invertebrates, inter-and intra-specific interactions are of importance in selecting a habitat, and specific chemical factors are involved. This study focuses on the sediment preferences of larvae and juveniles and includes an assessment of both the posit~ve and negative chemical cues. The data confirm an attraction of juvenile conspec~fics to each other during settlement in a gregarious type of posit~ve response, whereas a negative response to sedi m e n t~ that have been populated by adult A. manna exists. Attraction and larval settlement were induced by a number of synthetic chemicals, including fatty acids, anlino acids and tripeptides, and by Rhodomonas sp. and Nephtys hombergii populated sand. Aquatic fish food (Tetra-Marine, commercial trout diet) enriched sediment induces settlement at a similar range; this suggests that settlement can be induced non-specifically by water soluble compounds, which may indicate organically enriched and therefore potentially favourable sites for settlement. In A. manna, brominated aromatics (e.g. 3.5-dibromo-4-hydroxybenzoic acid) inhibit settlement and function as negative cues in a similar way to those described for terebellid polychaetes. Negative cues may be more important than positive cues cnd their ic!e in s u b s t i~i u~ choice by iiiveiiebiate larvae has been uiiderestiniaieci.

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Section: Arenicola Marinamentioning

confidence: 99%

“…The reproductive biology has been reviewed most recently by Howie (2984). Reproduction of a population is often highly synchronised and occurs during periods of low water during spring tides (Howie 1959, Duncan 1960. Spawning males ejaculate sperm onto the surface of the sediment, whereas female lugworms shed eggs within the burrow.…”

Section: Arenicola Marinamentioning

confidence: 99%

Sediment selection by juvenile Arenicola marina

Hardege¹,

Bentley²,

Snape³

1998

Mar. Ecol. Prog. Ser.

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“…Gamete proliferation in both sexes is initiated in spring (Olive, 1972), and individuals become mature and are in a state of readiness to spawn in the autumn. The breeding biology of A. marina has been discussed by a number of authors (Howie, 1959;Duncan, 1960;see Howie, 1984 for review), and most populations around the coasts of the British Isles spawn between early October and mid-December. Spawning in some populations takes place in a highly predictable and synchronised way (see Bentley and Pacey, 1992).…”

Section: Please Scroll Down For Articlementioning

confidence: 99%

The role of a fatty acid hormone in the reproduction of the polychaeteArenicola marina(L.)

Bentley

Hardege

1996

Invertebrate Reproduction & Development

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Invertebrate Reproduction and Development, 30: 1-3 (1 996) 159-1 65 Balaban, Philadelphia/Rehovot 0168-8 170/96/$05.00 Q 1996 Balaban SummaryReproduction in the lugworm Arenicola marina is annual and, for most populations, occurs in the late autumn or early winter. Oocyte maturation in females and sperm activation of males and spawning are under hormonal control. In males the polyunsaturated fatty acid, 8,11,14-eicosatrienoic acid, causes both activation of the spermatozoa (Bentley et al., 1990) and spawning (Pacey and Bentley, 1992). Dissociation of syncitial sperm masses occurs in response to the fatty acid. Active swimming of spermatozoa then follows on dilution in seawater (as a consequence of elevation of internal pH, pHi), and fertilization of the eggs takes place in the burrow of the female. Sperm activation can also be induced by arachidonic and 5,8,11-eicosatrienoic acids but not by the 1 1,14,17-isomer. This suggests a possible role for cyclooxygenases or lipoxygenases. Sperm activation by the PUFAs is inhibited by nordihydroguaiaretic acid (50 pM) and eicosatriynoic acid (13 p M ) suggesting that 12-lipoxygenase acts during activation. Possible involvement of the fitty acid in co-ordination of reproduction between individuals is also discussed.

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“…Spawning in each species occurs over a period of a few days coinciding with spring tides (Newell 1951, Pilgrim 1964, Rowe et al 1975. Among the arenicolids, spawning in Arenicola marina is synchronised with tide phases (Duncan 1960, Farke & Berghuis 1979a, and occurs over several months, with some geographic variation in seasonal timing (Howie 1959, Duncan 1960, Pollack 1979. In Arenicola brasiliensis, synchronous spawning occurs at about 4-day intervals over 3 months (Okada 194 I).…”

Section: Spawning and Juvenile Developmentmentioning

confidence: 99%