PROXIMATE CONSTITUENTS IN THE SEA-GRASSES ZOSTERA-MARINA AND Z-NOLTII IN IRELAND - SEASONAL-CHANGES AND THE EFFECT OF BLADE REMOVAL

被引：16

作者：

DAWES, CJ

GUIRY, MD

机构：

[1] Department of Biology, University of South Florida, Tampa, Florida

[2] Department of Botany, University College, Galway National University of Ireland, Galway

来源：

MARINE ECOLOGY-PUBBLICAZIONI DELLA STAZIONE ZOOLOGICA DI NAPOLI I | 1992年 / 13卷 / 04期

关键词：

ZOSTERA; SEASONALITY; PROXIMATE CONSTITUENTS; CALORIFIC VALUES;

D O I：

10.1111/j.1439-0485.1992.tb00357.x

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Zostera marina L. from the lower intertidal of Galway Bay and Dingle Harbour, Ireland, showed new blade growth in the winter and spring months, a period of high protein levels (to 22 %). Soluble carbohydrates (28-49 %) were highest in the rhizome in November and after blade production in May. During the period of blade production or blade removal by means of cropping, soluble carbohydrate levels decreased in the rhizome indicating a storage function. The diminutive upper intertidal species, Z. noltii (HORNEM.) REICHB. from Dungarvan Harbour, Ireland, also had highest protein levels in its blades in November and May, but the level of soluble carbohydrates in its rhizome was low compared with the larger species. The study indicates that Z. marina, being a perennial with a rhizome that functions as a storage organ, shows ''K'' type ecological strategies compared with the smaller species.

引用

页码：307 / 315

页数：9

共 37 条

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