Calanus Finmarchicus (A Copepod)

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Maine 2015 Wildlife Action Plan Revision Report Date: January 13, 2016 Calanus finmarchicus (A Copepod) Priority 3 Species of Greatest Conservation Need (SGCN) Class: Maxillopods (Crustaceans) Order: Calanoida (Calanoid Copepods) Family: Calanidae (Calanoid Copepods) General comments: none No Species Conservation Range Maps Available for A Copepod SGCN Priority Ranking - Designation Criteria: Risk of Extirpation: NA State Special Concern or NMFS Species of Concern: NA Recent Significant Declines: NA Regional Endemic: NA High Regional Conservation Priority: NA High Climate Change Vulnerability: Calanus finmarchicus is highly vulnerable to climate change. Understudied rare taxa: NA Historical: NA Culturally Significant: NA Habitats Assigned to A Copepod: Formation Name Subtidal Macrogroup Name Subtidal Pelagic (Water Column) Habitat System Name: Pelagic (Water Column) Macrogroup - Unknown Habitat System Stressors Assigned to A Copepod: No Stressors Currently Assigned to A Copepod or other Priority 3 SGCN. Species Level Conservation Actions Assigned to A Copepod: No Species Specific Conservation Actions Currently Assigned to A Copepod or other Priority 3 SGCN. Guild Level Conservation Actions: This Species is currently not attributed to a guild. Broad Taxonomic Group Conservation Actions: Relevant conservation actions for this species are assigned within broader taxonomic groups in Maine's 2015 Wildlife Action Plan: Element 4, Table 4-1. Habitat Based Conservation Actions: Additional conservation actions that may benefit habitat(s) associated with this species can be found in Maine's 2015 Wildlife Action Plan: Element 4, Table 4-15. Click on the Habitat Grouping of interest to launch a habitat based report summarizing relevant conservation actions and associated SGCN. The Wildlife Action Plan was developed through a lengthy participatory process with state agencies, targeted conservation partners, and the general public. The Plan is non-regulatory. The species, stressors, and voluntary conservation actions identified in the Plan complement, but do not replace, existing work programs and priorities by state agencies and partners. Crustaceans Group Page 1 of 1 SGCN Report - Page 1 of 1.

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Calanus Helgolandicus Under Controlled Conditions
Helgol~inder wiss. Meeresunters. 20, 346-359 (1970) Cultivation of Calanus helgolandicus under controlled conditions G.-A. PAFFENH6FER Institute of Marine Resources, University of California, San Diego; La Jolla, California, USA KURZFASSUNG: Kultlvierung von Calanus helgolandicus unter kontrollierten Bedingungen. Der planktonische Copepode Calanus helgolandicus (Calanoida) wurde im Labor vom Ei bis zum Adultus in bewegten Kulturen bei 15.0 C aufgezogen. Die kettenbildenden Diatomeen Chaetoceros curvisetus, Skeletonema costatum und Lauderia borealis sowie der Dinoflagellat Gymnodinium splendens wurden als Nahrung angeboten. Die Nahrungskonzentrationen, die zum Tell den Phytoplanktonkonzentrationen im Pazifischen Ozean an der Ktiste Siidkalifor- niens entsprachen, lagen zwischen 28 ~g und 800 #g organischem C/I. In Abh~ingigkeit yon Nahrungsquallt~it und Nahrungskonzentration wurden folgende Ergebnisse erzielt: Die Mor- talit~it yon C. heIgolandicus w~.hrend der gesamten Entwicklung vom geschliipf~en Naupllus bis zum Adultus lag zwischen 2,3 °/0 und 58,2 o/0. Die Zeitspanne yore Schliipfen bis zum adul- ten Stadium wiihrte i8 bis 54 Tage. Das Geschlechterverh~imis in verschiedenen KuIturen im Labor aufgezogener Tiere schwankte erhebli&. Der h6chste Prozentsatz yon ~ (~ (ca. 25 %) wurde erhalten, als L. boreal# beziehungswelse G. splendens gef~ittert wurden. Die L~.nge der ~ stand in direktem Verh~ilmis zur angebotenen Nahrungsmenge und lag zwischen 3,03 mm und 3,84 ram. Im Labor aufgezogene mad befruchtete ~ legten durchschnittlich 1991 Eier pro ~ bei einer Schlilpfrate yon 84 °/0. Spermatophorentragende ~ aus dem Pazifischen Ozean legten durchschnittllch je 2267 Eier, die eine Schltipfrate yon 77 % aufwiesen. Die Er- gebnisse beweisen, dab es m/Sglich ist, Calanus helgolandicus ohne Schwierlgkeit im Labor auf- zuziehen.
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............. HEL-G;L~NDERM--EiIES UN17~RSU JH U NG E N .......... Helgol~nder Meeresunters. 50 457-475 (1996) Population structure and reproduction of Calanus helgolandicus (Copepoda, Calanoida) along the Iberian and Moroccan slope S. St6hr*, K. Schulz 1. & H.-Ch. John* Zoologisches Institut und Museum der Universit~t Hamburg; Martin-Luther-King-Platz 3, D-20146 Hamburg, Germany ABSTRACT: During three cruises, carried out in March 1991, October 1991, and January 1992 off the Iberian Peninsula and Morocco, the abundant calanoid copepod Calanus helgolandicus (Claus) was collected from a depth of 1000 m to the surface. Differences in depth preference were correla- ted with the life stage and geographically differing vertical salinity structures. In autumn and win- ter, only stage V copepodids (CV) and adults were found, in spring also younger copepodid stages. Within the range of the Mediterranean outflow water (MOW), a sharp decline of abundances of all stages was evident during all cruises. In autumn 1991, the bulk of the population was recorded south of the MOW; in winter 1992 north of it. During winter, numbers had declined by 70 %, supporting the idea that winter individuals represent the same generation as was encountered in autumn, and that they had been transported northwards. CV stages preferred the depth layer 400-800 m, in autumn and winter. Adults were found in autumn at the same depth south of the MOW, while they preferred the 0-400 m layers north of it. In winter, the abundance of adults increased, males prefer- red the 400-600 m depth layer, while females stayed at 200-400 m.
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