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DOI10.1002/aqc.4084
Historical specimens and photographs reveal long-term changes in Smalltooth Sawfish (Pristis pectinata) age class distribution and average size during US population decline
Smith, Kelcee L.; Fearing, Annmarie; Phillips, Nicole M.; Kroetz, Andrea M.; Wiley, Tonya R.; Carlson, John K.; Taylor, Sabrina S.
发表日期2024
ISSN1052-7613
EISSN1099-0755
起始页码34
结束页码2
卷号34期号:2
英文摘要1. Population-level, historical studies can provide insights on the distribution, abundance and demographic characteristics of imperiled species prior to human exploitation, habitat modification or climate change. These studies provide a baseline for contemporary data, which often shape successful management and recovery. 2. The smalltooth sawfish (Pristis pectinata) occupies similar to 20% of its historical range due to declines driven primarily by mortalities in fisheries and coastal habitat loss over the last century. As a result, they are listed as Critically Endangered on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species and as Endangered federally in the United States (U.S.). 3. Because P. pectinata grow to a large size and have a toothed rostrum, many historical photographs and specimens are archived in natural history collections. Metadata and morphometric data were collected and analysed from P. pectinata photographs (n = 84) and specimens (n = 429) to evaluate temporal changes in average size and historical distribution of five age classes in U.S. waters. 4. Historically, smaller age classes were well-distributed throughout the northern Gulf of Mexico, while only larger age classes were recorded on the U.S. east coast, north of Florida. All age classes were found in both Florida and Texas historically, but records from Texas decline after the 1980s and remain persistent in Florida, indicative of a strong-hold for the U.S. population. Regardless of origin, individuals in three of the five age classes were larger on average historically than those observed today. 5. Understanding which age classes used previously occupied areas will help direct habitat restoration efforts and support recovery, especially in the face of climate change. Non-traditional data sources, such as those used here, may often be the only means of providing historical context to modern research on imperiled species, ultimately guiding restoration and conservation efforts.
英文关键词conservation; marine historical ecology; maximum size; natural history collections; range contraction; sawfish rostra
语种英语
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS类目Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS记录号WOS:001157947800001
来源期刊AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS (IF:2.935[JCR-2018],2.991[5-Year])
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/290811
作者单位Louisiana State University System; Louisiana State University; Louisiana State University System; Louisiana State University; University of Southern Mississippi; University of Miami; National Oceanic Atmospheric Admin (NOAA) - USA
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GB/T 7714
Smith, Kelcee L.,Fearing, Annmarie,Phillips, Nicole M.,et al. Historical specimens and photographs reveal long-term changes in Smalltooth Sawfish (Pristis pectinata) age class distribution and average size during US population decline[J],2024,34(2).
APA Smith, Kelcee L..,Fearing, Annmarie.,Phillips, Nicole M..,Kroetz, Andrea M..,Wiley, Tonya R..,...&Taylor, Sabrina S..(2024).Historical specimens and photographs reveal long-term changes in Smalltooth Sawfish (Pristis pectinata) age class distribution and average size during US population decline.AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS,34(2).
MLA Smith, Kelcee L.,et al."Historical specimens and photographs reveal long-term changes in Smalltooth Sawfish (Pristis pectinata) age class distribution and average size during US population decline".AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS 34.2(2024).
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