Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental assessment of critical anthropogenic sediment burial in
  eelgrass Zostera marina   Seagrass meadows, one of the worlds most important and productive coastal
habitats, are threatened by a range of anthropogenic actions. Burial of
seagrass plants due to coastal activities is one important anthropogenic
pressure leading to decline of local populations. In our study, we assessed the
response of eelgrass Zostera marina to sediment burial from physiological,
morphological, and population parameters. In a full factorial field experiment,
burial level (5-20 cm) and burial duration (4-16 weeks) were manipulated.
Negative effects were visible even at the lowest burial level (5 cm) and
shortest duration (4 weeks), with increasing effects over time and burial
level. Buried seagrasses showed higher shoot mortality, delayed growth and
flowering and lower carbohydrate storage. The observed effects will likely have
an impact on next years survival of buried plants. Our results have
implications for the management of this important coastal plant.

22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin