Effects of suspended sediment on survival, growth, and nutritional condition of green-lipped mussel spat (Perna canaliculus, Gmelin, 1791)

IF 1.8 3区生物学 Q3 ECOLOGY

Journal of Experimental Marine Biology and Ecology Pub Date : 2025-01-01 DOI:10.1016/j.jembe.2024.152074

Brandy S. Biggar , Andrew Jeffs , Jenny R. Hillman

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引用次数: 0

Abstract

Suspended sediment is a significant current threat to coastal ecosystems in many parts of the world. Sediment runoff into the ocean is increasing due to numerous human activities, such as agriculture, deforestation, construction, and mining. Additionally, climate change is impacting local weather patterns, with many regions experiencing marked changes in the frequency and extent of precipitation. Extreme weather events, such as cyclones, can increase suspended sediment (SS) in coastal waters by up to 100-fold. This rapid change in SS can negatively affect filter-feeding bivalves by diminishing their feeding efficiency, often preventing feeding until the sediment settles. In New Zealand, juveniles of the green-lipped mussel (Perna canaliculus) have rudimentary structures for capturing and sorting food particles from the seston, which are prone to clogging and damage. In this study, the effects of a range of SS concentrations (0–1250 mg L⁻¹) on the survival, growth, and nutritional condition of juvenile green-lipped mussels (1–2 mm SL) were determined over two time scales (5 and 30 days) in controlled laboratory experiments. Neither mortality nor nutritional condition were impacted by SS. However, the presence of SS positively affected growth (p < 0.05) and mussel settlement location (p < 0.01) at both time scales. The results show that, under these conditions, SS levels ≤1250 mg L⁻¹ are not apparently harmful to P. canaliculus spat and may even be advantageous.

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来源期刊

Journal of Experimental Marine Biology and Ecology 生物-海洋与淡水生物学

CiteScore

4.30

自引率

0.00%

发文量

审稿时长

14 weeks

期刊介绍： The Journal of Experimental Marine Biology and Ecology provides a forum for experimental ecological research on marine organisms in relation to their environment. Topic areas include studies that focus on biochemistry, physiology, behavior, genetics, and ecological theory. The main emphasis of the Journal lies in hypothesis driven experimental work, both from the laboratory and the field. Natural experiments or descriptive studies that elucidate fundamental ecological processes are welcome. Submissions should have a broad ecological framework beyond the specific study organism or geographic region. Short communications that highlight emerging issues and exciting discoveries within five printed pages will receive a rapid turnaround. Papers describing important new analytical, computational, experimental and theoretical techniques and methods are encouraged and will be highlighted as Methodological Advances. We welcome proposals for Review Papers synthesizing a specific field within marine ecology. Finally, the journal aims to publish Special Issues at regular intervals synthesizing a particular field of marine science. All printed papers undergo a peer review process before being accepted and will receive a first decision within three months.