A new species of Apolochus (Crustacea, Amphipoda, Gammaridea, Amphilochidae) in Maryland coastal bays, USA with notes on its abundance and distribution

Núñez, Andres G. Morales; Chigbu, Paulinus

doi:10.3897/zookeys.571.7440

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A new species of Apolochus (Crustacea, Amphipoda, Gammaridea, Amphilochidae) in Maryland coastal bays, USA with notes on its abundance and distribution

2016
By Núñez, Andres G. Morales ; Chigbu, Paulinus
Source: Zookeys. 2016; (571): 81–104.

[PDF-3.10 MB]

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Journal Title:

ZooKeys
Personal Author:

Núñez, Andres G. Morales ; Chigbu, Paulinus

Núñez, Andres G. Morales ; Chigbu, Paulinus Less -
NOAA Program & Office:

CREST (Center for Earth System Sciences and Remote Sensing Technologies and Tech Center at City College of CUNY) ; LMRCSC (Living Marine Resources Cooperative Science Center at the University of Maryland Eastern Shore)

CREST (Center for Earth System Sciences and Remote Sensing Technologies and Tech Center at City College of CUNY) ; LMRCSC (Living Marine Resources Cooperative Science Center at the University of Maryland Eastern Shore) Less -
Description:

A new amphilochid amphipod, Apolochus cresti sp. n. is described from specimens collected in the shallow waters of Maryland coastal bays, Mid-Atlantic region, at depths from 1.7 to 2.1 m. The new species appears to be most closely related to the northeastern Atlantic species, Apolochus neapolitanus sensu Krapp-Schickel, 1982. Apolochus cresti sp. n. can be distinguished from Apolochus neapolitanus by a combination of characters, including the shape of the lateral cephalic lobe, shape of the mandible molar process, relative length of mandible palp article 3, the carpal lobe length of gnathopod 2, and the lack of sub-marginal spines on antero-lateral surface of gnathopod 2. Spearman’s rank correlation analysis indicated a positive correlation between the abundance of Apolochus cresti and the amount of macroalgae collected per station, bay, and month. Ovigerous females carrying eggs were present from March to May and in October, reaching their peak in May, although only ovigerous females carrying juveniles were found in May. Males were abundant in March and were collected also in May and October. A key for the separation of Apolochus species is presented.
Keywords:

[+]

Amphipoda Distribution
Source:

Zookeys. 2016; (571): 81–104.
DOI:

https://dx.doi.org/10.3897/zookeys.571.7440
Pubmed ID:

27110159
Pubmed Central ID:

PMC4829802
Document Type:

Journal Article
Place as Subject:

Maryland ; Atlantic Coast (U.S.)

Maryland ; Atlantic Coast (U.S.) Less -
Rights Information:

CC BY
Compliance:

PMC
Main Document Checksum:

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urn:sha256:bf2905111fdd4e338b57fd0c6778000870bdc7ed8101d28cf151b4dd59049c13
Download URL:

https://repository.library.noaa.gov/view/noaa/27670/noaa_27670_DS1.pdf
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A new species of Apolochus (Crustacea, Amphipoda, Gammaridea, Amphilochidae) in Maryland coastal bays, USA with notes on its abundance and distribution

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